Side pedal connecting rod mechanism, side pedal assembly and vehicle

Abstract

The utility model provides a side treading connecting rod mechanism, a side treading assembly and a vehicle, and relates to the technical field of vehicle parts, the side treading connecting rod mechanism comprises a first connecting rod, a second connecting rod, a third connecting rod, a mounting bracket, pin shafts and a first sealing assembly, the two ends of the first connecting rod are rotationally connected with the mounting bracket and the third connecting rod through the pin shafts respectively; one end of the second connecting rod is rotatably connected with the third connecting rod through a pin shaft, the other end is rotatably connected with the mounting bracket through a pin shaft or a driving shaft, the first connecting rod is located outside the second connecting rod, and one end of the third connecting rod away from the second connecting rod is connected with the side pedal body; the first sealing assembly comprises a first plugging piece, and the first plugging piece is embedded in the mounting support and the third connecting rod and used for sealing the two ends of the pin shaft. Therefore, the two ends of the pin shaft can be sealed by the first plugging piece, so that the two ends of the pin shaft are not exposed in the air, and impurities can be prevented from entering a rotary connecting part of the side pedal connecting rod mechanism.

Description

Technical Field

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

[0002] With the rapid development of the automobile industry, people's requirements for the convenience and performance of automobiles are getting higher and higher, especially for models with higher chassis. In order to improve the convenience of drivers and passengers getting on and off the vehicle, more and more models are equipped with smart side steps.

[0003] At present, the rotating parts of the pin and the sleeve of the smart side steps on cars on the market are usually exposed to the air, which will cause the following problems: 1) Dust, sewage and mud are easily introduced into the relative rotating part of the sleeve and the pin, causing abnormal noise when the smart side step is running; 2) When foreign objects enter the relative rotating part of the sleeve and the pin and mud and dirt accumulate at the ends of the sleeve and the pin, the running resistance of the smart side step is increased, the service life of the motor is reduced, and it is easy to cause false anti-pinch; 3) Since the sleeve mounting hole is usually not surface treated, if it is not sealed, it is easy to be corroded by water and salt spray, and metal corrosion will also start here first, resulting in poor appearance of the parts and affecting the customer experience. Utility Model Content

[0004] The problem solved by the utility model is how to improve the sealing quality of the automobile intelligent side step at the pin shaft.

[0005] In order to solve the above problems, the utility model provides a side step connecting rod mechanism, a side step assembly and a vehicle.

[0006] In the first aspect, the utility model provides a side step linkage mechanism, including a first link, a second link, a third link, a mounting bracket, a pin and a first sealing assembly, the two ends of the first link are respectively rotatably connected to the mounting bracket and the third link through the pin, one end of the second link is rotatably connected to the third link through the pin, and the other end is rotatably connected to the mounting bracket through the pin or the drive shaft, and the first link is located on the outside of the second link, and the end of the third link away from the second link is used to be connected to the side step body; the first sealing assembly includes a first blocking piece, which is embedded in the mounting bracket and the third link, and is used to close the two ends of the pin.

[0007] Optionally, there is a gap between the pin shaft and the first blocking member;

[0008] And / or, the first blocking member is provided with a first avoidance groove for avoiding the pin shaft at one end thereof facing the pin shaft.

[0009] Optionally, the mounting bracket and the third connecting rod are both provided with a first mounting hole and a first mounting groove that are coaxially connected, the two ends of the pin shaft are respectively passed through the first mounting hole, the first sealing member is arranged in the first mounting groove, and is interference fit with the first mounting groove.

[0010] Optionally, a first annular sealing boss is provided on the first sealing member, and the first annular sealing boss is used to abut against the groove wall of the first installation groove.

[0011] Optionally, the first sealing assembly also includes a first sleeve and a first sealing member, the first sleeve is sleeved on both ends of the pin shaft and is rotatably connected to the first mounting hole, and the first sleeve is located on the side of the first sealing member close to the pin shaft, and the first sealing member is sleeved on both ends of the pin shaft and is located between the pin shaft and the corresponding first sleeve.

[0012] Optionally, the side-step linkage mechanism also includes a second sealing assembly, the second sealing assembly includes a second sealing piece and a sealing sleeve, the end of the second connecting rod away from the third connecting rod is used to be rotatably connected to the drive shaft, the sealing sleeve is used to be mounted outside the drive shaft, the second sealing piece is embedded in the mounting bracket and is located at one end of the drive shaft, and the second sealing piece and the sealing sleeve are respectively located on both sides of the second connecting rod along the axial direction of the drive shaft.

[0013] Optionally, the mounting bracket is further provided with a second mounting hole and a second mounting groove that are coaxially connected, the drive shaft is passed through the second mounting hole, and the second sealing member is arranged in the second mounting groove and has an interference fit with the second mounting groove.

[0014] Optionally, the second sealing assembly also includes a second sleeve and a second sealing member, the second sleeve is used to be sleeved outside the drive shaft and is rotatably connected to the second mounting hole, and the second sleeve is located on the side of the second sealing member and the sealing sleeve close to the drive shaft, and the second sealing member is used to be sleeved outside the drive shaft and is located between the drive shaft and the corresponding second sleeve.

[0015] In a second aspect, the present invention provides a side step assembly, comprising a side step body and the side step connecting rod mechanism as described above, wherein the side step body is used to be connected to the side panel of the vehicle body through the side step connecting rod mechanism.

[0016] In a third aspect, the present invention provides a vehicle comprising the side step linkage mechanism as described above, or comprising the side step assembly as described above.

[0017] The beneficial effects of the side-step linkage mechanism, side-step assembly and vehicle of the present invention are as follows: the mounting bracket can be fixed at, for example, the bottom of the vehicle side panel, and the two ends of the first link are rotatably connected to the mounting bracket and the third link respectively through a pin shaft, one end of the second link is rotatably connected to the third link through a pin shaft, the other end of the second link is rotatably connected to the mounting bracket through a pin shaft or a drive shaft, and the end of the third link away from the second link is connected to the side-step body, so that the second link is driven by the drive shaft to rotate to drive the first link and the third link to work in conjunction, thereby driving the side-step body to unfold from the bottom of the vehicle side panel to facilitate the driver and passengers to get on and off the vehicle, or driving the side-step body to retract to the bottom of the vehicle side panel so that the side-step body is hidden under the vehicle, thereby not increasing the size of the vehicle in the left and right directions and reducing the wind resistance during vehicle driving. Moreover, by arranging first sealing members at both ends of the pin shaft respectively, the two ends of the pin shaft can be sealed by using the first sealing members, so that the two ends of the pin shaft are not exposed to the air, thereby preventing impurities such as dust, sewage and mud from entering the rotating connection part of the side-step connecting rod mechanism, thereby reducing the abnormal noise and resistance generated by the side-step assembly during operation, and improving the service life of the driver, for example. At the same time, it can also improve the corrosion resistance of the rotating connection part of the side-step connecting rod mechanism, thereby ensuring the use quality of the side-step connecting rod mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Schematic top view of the side step assembly in the embodiment of the present invention when it is in the deployed state;

[0019] Figure 2 for Figure 1 Schematic diagram of cross section at AA in the middle;

[0020] Figure 3 for Figure 1 Schematic diagram of the cross section at the middle BB;

[0021] Figure 4 This is a structural schematic diagram of the side step assembly in the embodiment of the present utility model in the process of deployment or retraction;

[0022] Figure 5 This is a structural diagram of an embodiment of the present utility model in which the mounting bracket is a driven bracket;

[0023] Figure 6 This is a structural diagram of an embodiment of the present utility model when the mounting bracket is an active bracket;

[0024] Figure 7 This is a schematic structural diagram of the third connecting rod in an embodiment of the present utility model;

[0025] Figure 8 This is a schematic structural diagram of the first blocking member in an embodiment of the present utility model;

[0026] Figure 9 This is a structural schematic diagram of the side step assembly in a retracted state in an embodiment of the present utility model;

[0027] Figure 10 This is a side structural schematic diagram of the side step assembly in a retracted state in an embodiment of the present utility model;

[0028] Figure 11 This is a structural schematic diagram of the side step assembly in an expanded state in an embodiment of the present utility model;

[0029] Figure 12 It is a side structural schematic diagram of the side step assembly in the expanded state in an embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 1. First connecting rod; 2. Second connecting rod; 3. Third connecting rod; 31. First mounting seat; 4. Mounting bracket; 41. Second mounting seat; 42. Connecting bracket; 5. Pin; 6. First sealing assembly; 61. First blocking member; 611. First avoidance groove; 612. First annular sealing boss; 62. First bushing; 63. First sealing member; 7. Second sealing assembly; 71. Second blocking member; 711. Second avoidance groove; 72. Sealing sleeve; 73. Second bushing; 74. Second sealing member; 81. First mounting hole; 82. First mounting groove; 83. First boss; 91. Second mounting hole; 92. Second mounting groove; 93. Second boss;

[0032] 100. Side step linkage mechanism; 200. Side step body; 300. Driver; 310. Drive shaft; 400. Vehicle body side panel. DETAILED DESCRIPTION

[0033] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to 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 construed as being limited to the embodiments described herein. Instead, 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 for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0034] 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 "at least partially based 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 this utility model 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.

[0035] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0036] Combine Figure 1 、 Figure 2 and Figure 4 As shown, a side step linkage mechanism 100 provided by an embodiment of the utility model includes a first link 1, a second link 2, a third link 3, a mounting bracket 4, a pin 5 and a first sealing assembly 6, the two ends of the first link 1 are rotatably connected to the mounting bracket 4 and the third link 3 respectively through the pin 5, one end of the second link 2 is rotatably connected to the third link 3 through the pin 5, and the other end is rotatably connected to the mounting bracket 4 through the pin 5 or the drive shaft 310, and the first link 1 is located on the outside of the second link 2, and the end of the third link 3 away from the second link 2 is used to connect with the side step body 200; the first sealing assembly 6 includes a first blocking member 61, the first blocking member 61 is embedded in the mounting bracket 4 and the third link 3, and is used to seal the two ends of the pin 5.

[0037] It should be noted that the outer side of the second connecting rod 2 refers to the side of the second connecting rod 2 facing the outside of the vehicle, and correspondingly, the inner side of the second connecting rod 2 refers to the side of the second connecting rod 2 facing the inside of the vehicle.

[0038] Specifically, the mounting bracket 4 is typically secured to the bottom of the vehicle body side panel 400 using fasteners such as bolts. Furthermore, to improve the load-bearing capacity of the side step body 200 and ensure force balance, the side step assembly typically includes two side step linkage mechanisms 100. The second link 2 and the mounting bracket 4 in one side step linkage mechanism 100 are rotatably connected via a drive shaft 310. In this case, the side step linkage mechanism 100 is an active linkage mechanism, and the mounting bracket 4 in the side step linkage mechanism 100 is an active bracket. The second link 2 and the mounting bracket 4 in the other side step linkage mechanism 100 are rotatably connected via a pin 5. In this case, the side step linkage mechanism 100 is a passive linkage mechanism, and the mounting bracket 4 in the side step linkage mechanism 100 is a passive bracket. When the drive shaft 310 drives the second link 2 to rotate, the second link 2 drives the other links in the active linkage mechanism to rotate in conjunction with each other. Driven by the side step body 200, the three links in the passive linkage mechanism also rotate in conjunction with each other. Furthermore, first sealing assemblies 6 are provided at both ends of the pin 5. First sealing members 61 within the first sealing assembly 6 are used to seal the ends of the pin 5, preventing them from being exposed to air. The first sealing members 61 can be made of metal, rubber, or plastic. In practical applications, rubber is generally preferred to prevent rigid friction between the pin 5 and the first sealing member 61, while also reducing cost and weight.

[0039] The side step linkage mechanism 100 in this embodiment can be achieved by fixing the mounting bracket 4 at, for example, the bottom of the vehicle body side panel 400, rotatably connecting the two ends of the first link 1 to the mounting bracket 4 and the third link 3 respectively through the pin shaft 5, rotatably connecting one end of the second link 2 to the third link 3 through the pin shaft 5, rotatably connecting the other end of the second link 2 to the mounting bracket 4 through the pin shaft 5 or the drive shaft 310, and connecting the end of the third link 3 away from the second link 2 to the side step body 200, so that the second link 2 can be driven by the drive shaft 310 to rotate to drive the first link 1 and the third link 3 to work in conjunction, thereby driving the side step body 200 to unfold from the bottom of the vehicle body side panel 400 to facilitate the driver and passengers to get on and off the vehicle, or driving the side step body 200 to retract to the bottom of the vehicle body side panel 400 so that the side step body 200 is hidden under the vehicle, thereby not increasing the size of the vehicle in the left and right directions and reducing the wind resistance during vehicle driving. Moreover, by respectively arranging the first blocking members 61 at both ends of the pin shaft 5, the first blocking members 61 are used to seal the two ends of the pin shaft 5, so that the two ends of the pin shaft 5 are not exposed to the air, thereby preventing impurities such as dust, sewage and mud from entering the rotating connection part of the side-step linkage mechanism 100, thereby reducing the abnormal noise and resistance generated by the side-step assembly during operation, and improving the service life of, for example, the driver 300. At the same time, the corrosion resistance of the rotating connection part of the side-step linkage mechanism 100 can also be improved, thereby ensuring the use quality of the side-step linkage mechanism 100.

[0040] Optionally, combined Figure 2 As shown, there is a gap between the pin 5 and the first blocking member 61. A gap can exist between the pin 5 and the first blocking member 61 in the axial direction of the pin 5. That is, the pin 5 and the first blocking member 61 are spaced apart in the axial direction of the pin 5. A gap can also exist between the pin 5 and the first blocking member 61 in the radial direction of the pin 5. In this case, the first blocking member 61 is provided with a first avoidance groove 611, which will be described later, and a gap exists between the pin 5 and the sidewalls of the first avoidance groove 611. This arrangement forms a static seal between the first blocking member 61 and the pin 5, preventing interference between the pin 5 and the first blocking member 61 and affecting the rotation of the pin 5, thereby ensuring the smooth operation of the side-pedal linkage mechanism 100.

[0041] Optionally, combined Figure 2 As shown, a first avoidance groove 611 for avoiding the pin shaft 5 is provided at one end of the first blocking member 61 facing the pin shaft 5 .

[0042] In this optional embodiment, the first avoidance groove 611 can be a circular groove, a square groove, or a groove of other geometric shapes. Moreover, the notch area of ​​the first avoidance groove 611 is generally larger than the cross-sectional area of ​​the pin 5. When the length of the pin 5 is less than or equal to the distance between the two first blocking members 61, the end of the pin 5 is not inserted into the first avoidance groove 611; when the length of the pin 5 is greater than the distance between the two first blocking members 61, the end of the pin 5 is inserted into the first avoidance groove 611 and is loosely fitted with the first avoidance groove 611. In this way, by providing the first avoidance groove 611 on the first blocking member 61, on the one hand, it is possible to prevent the pin 5 from interfering with the first blocking member 61 and affecting the rotation of the pin 5. On the other hand, it is possible to reduce the length requirement of the pin 5, so that the side-step linkage mechanism 100 can be applied to pins 5 of different lengths, thereby improving the versatility of the side-step linkage mechanism 100.

[0043] Optionally, combined Figure 2 、 Figures 5 to 7 As shown, the mounting bracket 4 and the third connecting rod 3 are both provided with a coaxially connected first mounting hole 81 and a first mounting groove 82, the two ends of the pin shaft 5 are respectively passed through the first mounting hole 81, and the first blocking member 61 is arranged in the first mounting groove 82 and has an interference fit with the first mounting groove 82.

[0044] Specifically, the third link 3 is typically provided with two first mounting seats 31, and the mounting bracket 4 is provided with two second mounting seats 41. The first mounting seats 31 and the second mounting seats 41 are similar to ear plate structures. One end of the first link 1 and the second link 2 is located between the two first mounting seats 31, and the other end of the first link 1 and the second link 2 is located between the two second mounting seats 41. At the same time, the first mounting seat 31 and the second mounting seat 41 are both provided with a first mounting hole 81 and a first mounting groove 82, and the first mounting groove 82 and the first mounting hole 81 are arranged in a one-to-one correspondence. The first blocking member 61 is installed in the first mounting groove 82 by an interference fit. The third link 3 is provided with two pairs of first mounting holes 81. The third link 3 is rotatably connected to the first link 1 at one pair of first mounting holes 81 via a pin 5, and is rotatably connected to the second link 2 at the other pair of first mounting holes 81 via a pin 5. When the mounting bracket 4 is an active bracket, a pair of first mounting holes 81 and a pair of second mounting holes 91 (described later) are provided on the mounting bracket 4. The mounting bracket 4 is rotatably connected to the first connecting rod 1 through the pin shaft 5 at the pair of first mounting holes 81, and is rotatably connected to the second connecting rod 2 through the drive shaft 310 at the pair of second mounting holes 91. When the mounting bracket 4 is a driven bracket, two pairs of first mounting holes 81 are provided on the mounting bracket 4. The mounting bracket 4 is rotatably connected to the first connecting rod 1 through the pin shaft 5 at a pair of first mounting holes 81, and is rotatably connected to the second connecting rod 2 through the pin shaft 5 at another pair of first mounting holes 81.

[0045] In this optional embodiment, by providing first mounting holes 81 on the mounting bracket 4 and the third link 3, and respectively passing the two ends of the pin 5 through the first mounting holes 81, the two ends of the pin 5 are supported at the two first mounting holes 81, thereby improving the load-bearing capacity of the side step linkage mechanism 100 at the pin 5, and thereby improving the load-bearing capacity of the side step body 200. At the same time, by providing first mounting grooves 82 on the mounting bracket 4 and the third link 3, and interference-fitting the first blocking member 61 with the first mounting grooves 82, the first blocking member 61 is fixed to the mounting bracket 4 and the third link 3. At the same time, by coaxially connecting the first mounting grooves 82 and the first mounting holes 81, the convenience of assembly is improved and the gap between the pin 5 and the first blocking member 61 is ensured to be uniform.

[0046] Further, combined with Figure 2 、 Figures 5 to 7As shown, the first mounting seat 31 and the second mounting seat 41 are generally provided with a first boss 83, the first mounting groove 82 on the third link 3 is provided on the first boss 83 on the third link 3, and the first mounting groove 82 on the mounting bracket 4 is provided on the first boss 83 on the mounting bracket 4. In this way, by providing the first boss 83 on the third link 3 and the mounting bracket 4, a mounting position for the first blocking member 61 is provided. Moreover, the original structure of the third link 3 and the mounting bracket 4 does not need to be changed, thereby reducing the design difficulty and production cost of the side step linkage mechanism 100.

[0047] Optionally, combined Figure 8 As shown, the first sealing member 61 is provided with a first annular sealing boss 612, which is configured to abut against the wall of the first mounting groove 82. The first sealing member 61 may be provided with one or more first annular sealing bosses 612. This facilitates the use of the first annular sealing bosses 612 to eliminate the gap between the first sealing member 61 and the first mounting groove 82, effectively preventing the intrusion of foreign matter.

[0048] Optionally, combined Figure 2 As shown, the first sealing assembly 6 also includes a first sleeve 62 and a first sealing member 63. The first sleeve 62 is sleeved on both ends of the pin 5 and is rotatably connected to the first mounting hole 81. The first sleeve 62 is located on the side of the first blocking member 61 close to the pin 5. The first sealing member 63 is sleeved on both ends of the pin 5 and is located between the pin 5 and the corresponding first sleeve 62.

[0049] In this alternative embodiment, the pin 5 is rotatably connected to the first mounting hole 81 via a first bushing 62. Furthermore, a first seal 63, typically a sealing ring, is disposed between the first bushing 62 and the pin 5. Thus, the first seal 63 further seals both ends of the pin 5, thereby further improving the sealing performance of the side-step linkage mechanism 100 at the pin 5.

[0050] Optionally, combined Figure 1 and Figure 3 As shown, the side-step linkage mechanism 100 also includes a second sealing assembly 7, which includes a second sealing piece 71 and a sealing sleeve 72. The end of the second link 2 away from the third link 3 is used for rotational connection with the drive shaft 310, and the sealing sleeve 72 is used to be sleeved on the outside of the drive shaft 310. The second sealing piece 71 is embedded in the mounting bracket 4 and is located at one end of the drive shaft 310, and the second sealing piece 71 and the sealing sleeve 72 are respectively located on both sides of the second link 2 along the axial direction of the drive shaft 310.

[0051] In this optional embodiment, a portion of the drive shaft 310 is located within the housing of the driver 300, while another portion extends outside the housing of the driver 300. The portion of the drive shaft 310 extending outside the housing of the driver 300 is referred to as the extended section of the drive shaft 310. The second sealing member 71 is embedded in the mounting bracket 4 and is located at the free end of the extended section of the drive shaft 310, used to seal the free end of the drive shaft 310 so that the free end of the drive shaft 310 is not exposed to the air. The sealing sleeve 72 is mounted on the end of the extended section away from the free end to seal the drive shaft 310 from the mounting bracket 4. The second sealing member 71 has the same structure as the first sealing member 61. Moreover, like the first sealing member 61, the second sealing member 71 can be made of metal, rubber, or plastic. In actual applications, rubber is generally preferred to prevent rigid friction between the drive shaft 310 and the second sealing member 71, and to reduce cost and weight.

[0052] In this way, by arranging a second sealing member 71 at the free end of the drive shaft 310, the free end of the drive shaft 310 can be sealed by utilizing the second sealing member 71, and at the same time, by arranging a sealing sleeve 72 at the end of the extended section of the drive shaft 310 away from the free end, the two ends of the extended section of the drive shaft 310 are not exposed to the air, thereby further preventing impurities such as dust, sewage and mud from entering the rotating connection part of the side-step linkage mechanism 100, and further reducing the abnormal noise and resistance generated by the side-step assembly during operation, thereby improving the service life of, for example, the driver 300, and at the same time, it can also improve the corrosion resistance of the part where the side-step linkage mechanism 100 is rotatably connected to the drive shaft 310, thereby ensuring the use quality of the side-step linkage mechanism 100.

[0053] Optionally, combined Figure 3 and Figure 6 As shown, the mounting bracket 4 is further provided with a coaxially connected second mounting hole 91 and a second mounting groove 92 , the drive shaft 310 is passed through the second mounting hole 91 , and the second blocking member 71 is arranged in the second mounting groove 92 and has an interference fit with the second mounting groove 92 .

[0054] In this optional embodiment, the mounting bracket 4 is an active bracket. In this case, in addition to the pair of first mounting holes 81 and the pair of first mounting slots 82, the second mounting seat 41 of the mounting bracket 4 also has a pair of second mounting holes 91 and a pair of second mounting slots 92. Thus, by providing the second mounting holes 91 on the mounting bracket 4 and inserting the drive shaft 310 into the second mounting holes 91, the drive shaft 310 is supported at two points at the two second mounting holes 91, thereby improving the load-bearing capacity of the side-step linkage mechanism 100 at the drive shaft 310, and thereby improving the load-bearing capacity of the side-step body 200. Furthermore, by providing the second mounting slots 92 on the mounting bracket 4 and interferingly fitting the second blocking member 71 with the second mounting slots 92, the second blocking member 71 is securely mounted to the mounting bracket 4. Furthermore, by coaxially connecting the second mounting slots 92 and the second mounting holes 91, assembly is facilitated and a uniform gap is ensured between the drive shaft 310 and the second blocking member 71.

[0055] Further, combined with Figure 3 and Figure 6 As shown, the second mounting seat 41 is further provided with a second boss 93, and the second mounting groove 92 on the mounting bracket 4 is provided on the second boss 93. Thus, by providing the second boss 93 on the mounting bracket 4, a mounting position for the second blocking member 71 is provided. Moreover, the original structure of the mounting bracket 4 does not need to be changed, thereby reducing the design difficulty and production cost of the side step linkage mechanism 100.

[0056] Optionally, combined Figure 3 and Figure 6 As shown, the second sealing assembly 7 also includes a second sleeve 73 and a second sealing member 74. The second sleeve 73 is used to be sleeved outside the drive shaft 310 and is rotatably connected to the second mounting hole 91. The second sleeve 73 is located on the side of the second sealing member 71 and the sealing sleeve 72 close to the drive shaft 310. The second sealing member 74 is used to be sleeved outside the drive shaft 310 and is located between the drive shaft 310 and the corresponding second sleeve 73.

[0057] In this alternative embodiment, the drive shaft 310 is rotatably connected to the second mounting hole 91 via a second bushing 73. Furthermore, a second seal 74, typically a sealing ring, is disposed between the second bushing 73 and the drive shaft 310. This second seal 74 further seals the rotatably connected portion of the drive shaft 310 between the second bushing 73 and the second mounting hole 91, thereby further improving the sealing performance of the side-step linkage mechanism 100 at the drive shaft 310.

[0058] Further, combined with Figure 3As shown, a second avoidance groove 711 for avoiding the driving shaft 310 is provided at one end of the second blocking member 71 facing the driving shaft 310 , and a gap is provided between the driving shaft 310 and the second avoidance groove 711 .

[0059] In this alternative embodiment, like the first avoidance groove 611, the second avoidance groove 711 can also be a circular groove, a square groove, or a groove of other geometric shapes. Furthermore, the notch area of ​​the second avoidance groove 711 is generally larger than the cross-sectional area of ​​the drive shaft 310. Alternatively, the end of the drive shaft 310 may not be inserted into the second avoidance groove 711. In this case, the end of the drive shaft 310 and the second blocking member 71 are spaced apart in the axial direction of the drive shaft 310. Alternatively, the end of the drive shaft 310 may be inserted into the second avoidance groove 711. In this case, the end of the drive shaft 310 and the second avoidance groove 711 are loosely fitted. Thus, providing the second avoidance groove 711 on the second blocking member 71 prevents interference between the drive shaft 310 and the second blocking member 71, thereby affecting the rotation of the drive shaft 310. Furthermore, the length requirement for the drive shaft 310 is reduced, making the side-stepping linkage mechanism 100 adaptable to drive shafts 310 of varying lengths, thereby further improving the versatility of the side-stepping linkage mechanism 100.

[0060] Furthermore, the second sealing member 71 is provided with a second annular sealing boss, which is configured to abut against the wall of the second mounting groove 92. The second sealing member 71 may be provided with one or more second annular sealing bosses. This facilitates the use of the second annular sealing bosses to eliminate the gap between the second sealing member 71 and the second mounting groove 92, effectively preventing the intrusion of foreign matter.

[0061] Combine Figures 9 to 12 As shown, an embodiment of the present invention provides a side step assembly, which includes a side step body 200 and the side step linkage mechanism 100 as described above. The side step body 200 is used to be connected to the vehicle body side 400 through the side step linkage mechanism 100 .

[0062] In this embodiment, the vehicle further includes a driver 300, which can be a motor or a hydraulic cylinder. When the driver 300 is a motor, the drive shaft 310 is the motor shaft of the motor, and the side step assembly is an electric side step. When the driver 300 is a hydraulic cylinder, the drive shaft 310 is connected to the output end of the hydraulic cylinder. The hydraulic cylinder performs telescopic movement to drive the second connecting rod 2 to rotate, thereby driving the other connecting rods of the side step linkage mechanism 100 to realize the deployment and retraction of the side step body 200. In addition, 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 side step linkage mechanism, and will not be repeated here.

[0063] An embodiment of the present invention provides a vehicle including the side step linkage mechanism described above, or including the side step assembly described above.

[0064] The beneficial effects of the vehicle of this embodiment compared to the prior art are the same as those of the above-mentioned side step linkage mechanism or side step assembly, and will not be described in detail here.

[0065] 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 side step linkage mechanism, characterized in that: The invention comprises a first connecting rod (1), a second connecting rod (2), a third connecting rod (3), a mounting bracket (4), a pin (5) and a first sealing assembly (6), wherein the two ends of the first connecting rod (1) are rotatably connected to the mounting bracket (4) and the third connecting rod (3) respectively through the pin (5), one end of the second connecting rod (2) is rotatably connected to the third connecting rod (3) through the pin (5), and the other end is rotatably connected to the mounting bracket (4) through the pin (5) or the driving shaft (310), and the first connecting rod (1) is located on the outside of the second connecting rod (2), and the end of the third connecting rod (3) away from the second connecting rod (2) is used to be connected to the side pedal body (200); the first sealing assembly (6) comprises a first blocking member (61), which is embedded in the mounting bracket (4) and the third connecting rod (3) and is used to seal the two ends of the pin (5).

2. The side step linkage mechanism according to claim 1, characterized in that: There is a gap between the pin shaft (5) and the first blocking member (61); And / or, one end of the first blocking member (61) facing the pin shaft (5) is provided with a first avoidance groove (611) for avoiding the pin shaft (5).

3. The side step linkage mechanism according to claim 1, characterized in that: The mounting bracket (4) and the third connecting rod (3) are both provided with a first mounting hole (81) and a first mounting groove (82) that are coaxially connected, the two ends of the pin shaft (5) are respectively passed through the first mounting hole (81), and the first blocking member (61) is arranged in the first mounting groove (82) and is interference-fitted with the first mounting groove (82).

4. The side step linkage mechanism according to claim 3, characterized in that: A first annular sealing boss (612) is provided on the first sealing member (61), and the first annular sealing boss (612) is used to abut against the groove wall of the first installation groove (82).

5. The side step linkage mechanism according to claim 3, characterized in that: The first sealing assembly (6) further includes a first sleeve (62) and a first sealing member (63), wherein the first sleeve (62) is sleeved on both ends of the pin shaft (5) and is rotatably connected to the first mounting hole (81), and the first sleeve (62) is located on a side of the first blocking member (61) close to the pin shaft (5), and the first sealing member (63) is sleeved on both ends of the pin shaft (5) and is located between the pin shaft (5) and the corresponding first sleeve (62).

6. The side step linkage mechanism according to claim 1, characterized in that: The invention also includes a second sealing assembly (7), wherein the second sealing assembly (7) includes a second sealing member (71) and a sealing sleeve (72), wherein one end of the second connecting rod (2) away from the third connecting rod (3) is used for being rotatably connected to the drive shaft (310), and the sealing sleeve (72) is used for being sleeved outside the drive shaft (310), and the second sealing member (71) is embedded in the mounting bracket (4) and is located at one end of the drive shaft (310), and the second sealing member (71) and the sealing sleeve (72) are respectively located on both sides of the second connecting rod (2) along the axial direction of the drive shaft (310).

7. The side step linkage mechanism according to claim 6, characterized in that: The mounting bracket (4) is further provided with a second mounting hole (91) and a second mounting groove (92) that are coaxially connected, the drive shaft (310) is passed through the second mounting hole (91), and the second blocking member (71) is arranged in the second mounting groove (92) and is interference-fitted with the second mounting groove (92).

8. The side step linkage mechanism according to claim 7, characterized in that: The second sealing assembly (7) further includes a second sleeve (73) and a second sealing member (74), wherein the second sleeve (73) is used to be sleeved outside the drive shaft (310) and is rotatably connected to the second mounting hole (91), and the second sleeve (73) is located on a side of the second blocking member (71) and the sealing sleeve (72) close to the drive shaft (310), and the second sealing member (74) is used to be sleeved outside the drive shaft (310) and is located between the drive shaft (310) and the corresponding second sleeve (73).

9. A side step assembly, characterized in that: The invention comprises a side step body (200) and a side step link mechanism according to any one of claims 1 to 8, wherein the side step body (200) is used for being connected to a vehicle body side panel (400) through the side step link mechanism.

10. A vehicle, characterized in that: It comprises the side step linkage mechanism according to any one of claims 1 to 8, or it comprises the side step assembly according to claim 9.

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