Step assembly and vehicle

Abstract

The present invention discloses a step assembly and a vehicle. The step assembly includes a step bracket, a swinging frame, a lower step and a driving member. The step assembly is fixedly connected to the vehicle body through the step bracket, the swinging frame is hinged to the step bracket, and the lower step is connected to the swinging frame. The swinging frame is hinged to the step bracket and can swing relative to the step bracket. During the step bracket swinging toward the door handle, the lower step can be driven to move toward the door handle. The driving member is connected to the swinging frame, and can drive the swinging frame to swing toward the door handle when the passenger gets on the vehicle via the lower step, so that the passenger's body can be closer to the door handle, thereby making it easier for the passenger to touch the door handle, avoiding body imbalance in the process of touching the door handle, and eliminating the safety hazard of the passenger easily falling when opening the door.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle accessories, and in particular to a step assembly and a vehicle. Background Art

[0002] Step assemblies are primarily used on commercial vehicles for passengers to board and exit the vehicle. To facilitate boarding, they are typically configured as three steps. For example, Publication No. CN202413628U discloses a step assembly for heavy-duty vehicles. The step assembly comprises a step bracket and a first-stage, second-stage, and third-stage step mounted on the bracket.

[0003] The step assembly is usually set up so that the passenger can open the door after stepping on a step. Due to the limitation of the wheels, the step assembly is usually staggered with the door handle, so that the passengers need to stagger their bodies or bend over to open the door when getting on the vehicle. If the passengers are short or inexperienced, they may easily lose balance when touching the handle, and there is a risk of falling. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies and to provide a step assembly and a vehicle to solve the technical problem in the prior art that commercial vehicles easily cause body imbalance during the door opening process.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a step assembly, comprising:

[0007] a step bracket, used for connecting to the vehicle body;

[0008] A swing frame, hinged to the step bracket;

[0009] A lower step connected to the swing frame; and

[0010] The driving member is connected to the swing frame and the stepping bracket, and is used for driving the swing frame to swing.

[0011] In some embodiments, the swing frame includes a first articulated frame and a second articulated frame, the upper end of the first articulated frame is hinged to the step bracket, the second articulated frame is hinged to the lower end of the first articulated frame, the lower step is connected to the second articulated frame, and the driving member is connected to the first articulated frame.

[0012] In some embodiments, the driving member includes a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the step bracket, and the other end of the hydraulic cylinder is hinged to the swing frame.

[0013] In some embodiments, the driving member includes a motor, a rotating frame and a driving frame, the motor is fixed to the swing frame, the swing frame is provided with a support frame, the rotating frame is rotatably connected to the support frame, one end of the rotating frame is hinged to the step bracket through a straight groove, and the driving frame is fixed to the shaft of the motor and hinged to the straight groove at the other end of the rotating frame.

[0014] In some embodiments, the rotating frame is provided with a driving arm, and the driving arm abuts against the swing frame and can drive the swing frame as the rotating frame rotates.

[0015] In some embodiments, the step assembly further includes an upper step, which is fixed to the step bracket and is arranged above the lower step along the height direction of the step bracket.

[0016] In some embodiments, the upper step includes a support plate and a step frame, both ends of the support plate and the step frame are fixed to the step bracket, and the step frame is located on the upper side of the support plate and forms a drainage gap between the step frame and the support plate.

[0017] In some embodiments, the step frame includes a plurality of U-shaped support frames arranged in sequence from the inside to the outside, each adjacent U-shaped support frame is fixedly connected, and the outermost U-shaped support frame is fixed to the step support frame.

[0018] In some embodiments, the lower step is provided with a plurality of anti-slip protrusions and a plurality of drainage holes, and the anti-slip protrusions enclose the drainage holes.

[0019] In a second aspect, the present invention further provides a vehicle comprising the aforementioned step assembly.

[0020] Compared with the prior art, the step assembly provided by the present invention is provided with a step bracket, a swinging frame, a lower step and a driving member. The step assembly is fixedly connected to the vehicle body through the step bracket, the swinging frame is hinged to the step bracket, and the lower step is connected to the swinging frame. The swinging frame is hinged to the step bracket and can swing relative to the step bracket. During the step bracket swinging toward the door handle, it can drive the lower step to move toward the door handle. The driving member is connected to the swinging frame, and can drive the swinging frame to swing toward the door handle during the process of the passenger getting on the vehicle via the lower step, so that the passenger's body can be closer to the door handle, making it easier for the passenger to touch the door handle, avoiding body imbalance in the process of touching the door handle, and eliminating the safety hazard of the passenger falling in the process of opening the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a structural diagram of a step assembly provided by an embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a step bracket and an upper step provided by an embodiment of the present invention;

[0023] Figure 3 is a structural schematic diagram of a step bracket and an upper step provided by another embodiment of the present invention;

[0024] Figure 4 It is a structural diagram of a swing frame and lower steps provided by one embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a swing frame provided by another embodiment of the present invention.

[0026] Reference numerals in the figures:

[0027] 10-Step bracket 11-Fixed bracket 20-Swing bracket

[0028] 21 - Rotating sleeve 22 - Air hole 23 - Support frame

[0029] 24 - first articulated frame 25 - second articulated frame 30 - lower step

[0030] 31 - Anti-slip protrusion 32 - Drain hole 40 - Driving element

[0031] 41 - Motor 42 - Rotating frame 43 - Driving frame

[0032] 50 - Upper step 51 - Support plate 52 - Step frame

[0033] 53 - pedal 241 - bushing 251 - rotating shaft

[0034] 421—driving arm 521—U-shaped support frame 522—outer support frame

[0035] 523—Inner support frame 531—Drainage trough. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] In order to solve the technical problem in the prior art that commercial vehicles easily cause body imbalance during door opening, an embodiment of the present invention provides a step assembly, which drives the step to swing when getting on the vehicle, making it easier for passengers to open the door, thereby eliminating safety hazards when passengers get on the vehicle.

[0038] It should be noted that the step assembly described in the present invention is used for but not limited to commercial vehicles, etc. For the sake of convenience, in the present invention, only the application of the step assembly to a commercial vehicle is used as an example for explanation. The principles of the application of the step assembly to other types of equipment are essentially the same as those used in commercial vehicles, and will not be described in detail here.

[0039] The step assembly provided by the embodiment of the present invention is as follows: Figure 1 and 4 As shown, it includes a step bracket 10, a swing frame 20, a lower step 30 and a driving member 40. The step bracket 10 is used to be fixedly connected to the vehicle body; the swing frame 20 is hinged to the step bracket 10; the lower step 30 is connected to the swing frame 20; the driving member 40 is connected to the swing frame 20 and the step bracket 10, and is used to drive the swing frame 20 to swing.

[0040] Specifically, the step assembly is provided with a step bracket 10, a swing frame 20, a lower step 30 and a driving member 40. The step assembly is fixedly connected to the vehicle body through the step bracket 10, the swing frame 20 is hinged to the step bracket 10, and the lower step 30 is connected to the swing frame 20. The swing frame 20 is hinged to the step bracket 10 and can swing relative to the step bracket 10. During the step bracket 10 swinging toward the door handle, it can drive the lower step 30 to move toward the door handle. The driving member 40 is connected to the swing frame 20, and can drive the swing frame 20 to swing toward the door handle when the occupant gets on the vehicle through the lower step 30, so that the occupant's body can be closer to the door handle, making it easier for the occupant to touch the door handle, avoiding body imbalance in the process of touching the door handle, and eliminating the safety hazard of the occupant falling when opening the door.

[0041] In this embodiment, in the process of driving the swing frame 20 to swing toward the door handle, in addition to driving the lower step 30 to move toward the door handle, the lower step 30 can also be lifted. On the one hand, it can make it easier for shorter passengers to reach the door handle. On the other hand, it can increase the ground clearance of the lower step 30 to avoid collision between the lower step 30 and ground obstacles.

[0042] In one embodiment, Figure 1 As shown, the lower end of the step bracket 10 is provided with a fixed bracket 11, which is provided with a hinge shaft. The upper end of the swing bracket 20 is provided with a supply sleeve 21, which is mounted on the hinge shaft. The swing bracket 20 is hinged to the hinge shaft via the supply sleeve 21. The end of the fixed bracket 11 is fixedly connected to the vehicle body via three bolts. The swing bracket 20 is hinged to the step bracket 10 through the cooperation of the supply sleeve 21 and the hinge shaft.

[0043] In this embodiment, the swing frame 20 can be any frame structure hinged to the step support 10 .

[0044] In one embodiment, Figure 1 and 3 As shown in FIG. 4 , the swing frame 20 is provided with an air hole 22 , which can reduce wind resistance.

[0045] In one embodiment, Figure 5 As shown, the swing frame 20 includes a first articulated frame 24 and a second articulated frame 25. The upper end of the first articulated frame 24 is hinged to the step bracket 10, the second articulated frame 25 is hinged to the lower end of the first articulated frame 24, the lower step 30 is connected to the second articulated frame 25, and the driving member 40 is connected to the first articulated frame 24. Specifically, the driving member 40 is connected to the first articulated frame 24, and by driving the first articulated frame 24 to move toward the door handle, the second articulated frame 25 and the lower pedal 53 can be driven to move toward the door handle. Since the ground clearance of the lower pedal 53 is small, it is easy to collide with ground obstacles. By setting the swing frame 20 as two mutually hinged first articulated frames 24 and second articulated frames 25, the lower end of the swing frame 20 can swing through the second articulated frame 25 when it collides with a ground obstacle, thereby enabling the swing frame 20 step assembly to resist the impact of ground obstacles, and thereby enabling the swing frame 20 to be unaffected by the connection of the driving member 40 and to swing when it hits a ground obstacle.

[0046] In this embodiment, the hinge sleeve 241 of the first hinge frame 24 and the second hinge frame 25 is provided with a torsion spring (marked in the figure), one side of the torsion spring is in contact with the first hinge frame 24, and the other side of the torsion spring is in contact with the second hinge frame 25. The torsion spring can provide a buffer for the swing of the second hinge frame 25, preventing the second hinge frame 25 from swinging too much when hit by external obstacles, and at the same time, it can accelerate the resetting of the second hinge frame 25.

[0047] In this embodiment, Figure 5 As shown, a shaft sleeve 241 is fixed to the side of the first articulated frame 24, and a rotation shaft 251 is fixed to the side of the second articulated frame 25. The rotation shaft 251 is disposed inside the shaft sleeve 241. The second articulated frame 25 is hinged to the shaft sleeve 241 via the rotation shaft 251. The upper end surface of the second articulated frame 25 can rotate to abut against the lower end surface of the first articulated frame 24. Specifically, the orientation of the swing frame 20 allows the second articulated frame 25 to rotate toward the wheel when impacted by a ground obstacle. Furthermore, when the second articulated frame 25 swings back, the abutment between the upper end surface of the second articulated frame 25 and the lower end surface of the first articulated frame 24 prevents the second articulated frame 25 from swinging back further, thereby accelerating the return of the second articulated frame 25.

[0048] In some embodiments, as Figure 4As shown, the lower step 30 is provided with a plurality of anti-skid protrusions 31 and a plurality of drainage holes 32. The anti-skid protrusions 31 enclose the drainage holes 32. Specifically, the anti-skid protrusions 31 can increase the surface friction of the lower step 30, and the drainage holes 32 can allow the lower pedal 53 to drain water, preventing water from accumulating on the surface of the lower step 30. The anti-skid protrusions 31, by enclosing the drainage holes 32, further increase the strength of the sides around the drainage holes 32, thereby preventing deformation of the lower step 30.

[0049] In one embodiment, the driving member 40 includes a hydraulic cylinder (not shown), one end of which is hinged to the step bracket 10, and the other end of which is hinged to the swing frame 20. Specifically, the hydraulic cylinder drives the swing frame 20, thereby causing the swing frame 20 to swing.

[0050] In this embodiment, the driving end of the hydraulic cylinder is hinged to the first articulated frame 24 of the swing frame 20 on the side close to the wheel.

[0051] In another embodiment, Figure 4 As shown, the driving member 40 includes a motor 41, a rotating frame 42 and a driving frame 43. The motor 41 is fixed to the swing frame 20. The swing frame 20 is provided with a support frame 23. The rotating frame 42 is rotatably connected to the support frame 23. One end of the rotating frame 42 is hinged to the step bracket 10 through a straight groove. The driving frame 43 is fixed to the shaft of the motor 41 and hinged to the straight groove at the other end of the rotating frame 42. Specifically, during the swinging process of the driving rod swing frame 20, the motor 41 drives the driving frame 43 to rotate. During the rotation process of the driving frame 43, the driving frame 43 is hinged to one end of the straight groove of the rotating frame 42, and slides along the straight groove while driving the rotating frame 42 to rotate. During the rotation process of the rotating frame 42, the rotating frame 42 will slide along the step bracket 10 through the straight groove, and at the same time form a force acting on the step bracket 10. Since the step bracket 10 is fixed, the rotating frame 42 forms a reverse force, which ultimately drives the swing frame 20 to swing.

[0052] In this embodiment, the motor 41 is fixed to the first articulated frame 24 of the swing frame 20 on the side away from the wheel.

[0053] In this embodiment, Figure 4 As shown, the rotating sleeve 21 is provided with a connecting frame, and the rotating frame 42 is rotatably connected to the connecting frame through a straight groove. During the rotation process of the rotating frame 42, it will slide along the connecting frame through the straight groove.

[0054] In one embodiment, Figure 4As shown, the rotating frame 42 is provided with a driving arm 421. The driving arm 421 abuts against the swing frame 20 and can drive the swing frame 20 as the rotating frame 42 rotates. Specifically, the driving arm 421 abuts against the swing frame 20. When the motor 41 drives the rotating frame 42 to rotate, the driving arm 421 will generate additional driving force acting on the swing frame 20 to swing, assisting the swing frame 20 in swinging. In addition, the swing frame 20 can be synchronously driven on both sides of the support frame 23, reducing the load on the motor 41.

[0055] In one embodiment, Figure 1-3 As shown, the step assembly also includes an upper step 50, which is fixed to the step bracket 10 and is arranged above the lower step 30 along the height direction of the step bracket 10. Specifically, the step assembly forms a multi-level step by combining the lower step 30 and the upper step 50, making it easier for passengers to get on the bus.

[0056] In this embodiment, Figure 1-3 As shown, there are two upper steps 50 , which are spaced apart along the height direction of the pedal 53 bracket. The upper step 50 is combined with the lower step 30 to form a three-step structure.

[0057] In this embodiment, if the occupant is inexperienced, has low proficiency, or is short in height, after stepping onto the upper step 50, the occupant presses a button to cause the driving member 40 to drive the swing frame 20 to swing, so that the lower pedal 53 is lifted and offset toward the door handle. The occupant steps onto the lower step 30 again and can easily touch the door handle through the lower step 30. At this time, the body does not need to bend or turn sideways to easily open the door, avoiding body imbalance caused by touching the door handle and ensuring the safety of the occupant. After the door is opened, the occupant can get on the car through the two upper steps 50.

[0058] In one embodiment, Figure 2-3 As shown, the upper step 50 includes a support plate 51 and a step frame 52. Both ends of the support plate 51 and the step frame 52 are fixed to the step bracket 10. The step frame 52 is located on the upper side of the support plate 51 and forms a drainage gap with the support plate 51. Specifically, the step frame 52 can provide support for the passengers. When the passengers get on the vehicle, the step frame 52 slightly deforms downward and contacts the support plate 51. The support plate 51 provides support, thereby ensuring the structural strength of the upper step 50 and preventing the upper step 50 from deforming. The step frame 52 is a hollow structure. Rainwater can directly enter the drainage gap of the support plate 51 through the step frame 52 and be discharged from the support plate 51, thereby preventing water from accumulating at the step frame 52. Therefore, the passengers will not step on the accumulated water when getting on the vehicle. Therefore, by configuring the upper step 50 as a support plate 51 and step frame 52 structure, the structural strength of the upper step 50 can be effectively ensured while effectively preventing the passengers from stepping on the accumulated water when getting on the vehicle.

[0059] In one embodiment, Figure 2 As shown, the step frame 52 includes a plurality of U-shaped support frames 521 arranged in sequence from the inside to the outside, each adjacent U-shaped support frame 521 is fixedly connected, and the outermost U-shaped support frame 521 is fixed to the step frame 10. Specifically, the side structure of the U-shaped support frame 521 can achieve the stability of the adjacent U-shaped support frames 521 and the stability of the outermost U-shaped support frame 521 and the step frame 10.

[0060] It is understandable that the number of U-shaped support frames 521 can be adaptively set according to actual needs.

[0061] In another embodiment, Figure 3 As shown, the step frame 52 includes an outer support frame 522 and a plurality of inner support frames 523 . The outer support frame 522 is fixed to the step frame 10 , and the inner support frames 523 are arranged at intervals on the inner side of the outer support frame 522 and fixed to the outer support frame 522 .

[0062] In another embodiment, Figure 1 As shown, the upper step 50 includes a pedal 53, which is provided with a plurality of spaced drainage grooves 531. Friction protrusions are provided within the drainage grooves 531. Specifically, the drainage grooves 531 can collect water accumulated on the surface of the pedal 53, and the friction protrusions can increase the surface friction of the pedal 53 and increase the strength of the pedal 53 to prevent deformation.

[0063] The present invention also provides a vehicle including the aforementioned step assembly. Specifically, the step assembly makes it easier for passengers to reach the door handles when boarding the vehicle, thereby preventing the passenger from becoming unbalanced while reaching for the door handles and eliminating the potential safety hazard of falling when opening the door.

[0064] The specific working principle of the vehicle provided by the embodiment of the present invention is as follows: the vehicle of this embodiment is mainly a commercial vehicle, which is provided with the step assembly on the vehicle body, the step assembly is located on one side of the wheel, the step assembly is provided with a step bracket 10, a swing bracket 20, a lower step 30 and a driving member 40, and is fixedly connected to the vehicle body through the step bracket 10 and is located on one side of the wheel, the swing bracket 20 is hinged to the step bracket 10, the lower step 30 is connected to the swing bracket 20, the swing bracket 20 is hinged to the step bracket 10, and can swing relative to the step bracket 10 toward the wheel direction, the step bracket 10 During the swinging process toward the wheel, the lower step 30 can be driven to move toward the door handle. The driving member 40 is connected to the swing frame 20, and can drive the swing frame 20 to swing toward the door handle when the passenger gets on the vehicle through the lower step 30. The driving member 40 can be controlled by the start-stop button on the vehicle body. After the passenger steps on the upper step 50 through the lower step 30, the start-stop button is pressed again to drive the driving member 40 to drive the first articulated frame 24 of the swing frame 20, thereby driving the second articulated frame 25 and the lower step 30 to lift and move toward the door handle. Then, the passenger steps on the lower step 30 again. The vehicle door can be opened easily by stepping on the lower step 30 and the vehicle door can be opened easily without bending or leaning sideways, thus avoiding the imbalance of the body caused by touching the door handle, ensuring the safety of the occupants and eliminating the potential safety hazard of falling when opening the door. After the door is opened, the occupants can get on the vehicle by stepping on the two upper steps 50. Before getting on the vehicle, the start-stop button can be pressed again to start the driving member 40, so that the first articulated frame 24 is reset and the lower step 30 is driven to reset. After the lower step 30 is reset, the ground clearance of the lower step 30 is reduced, so that the lower step 30 can be opened easily. The step 30 is prone to collision with ground obstacles. Since the swing frame 20 is also provided with a second articulated frame 25 hinged to the first articulated frame 24, when the lower step 30 collides with a ground obstacle, it can swing through the second articulated frame 25 to avoid the lower step 30 from being deformed under the impact of the ground obstacle, thereby enabling the lower step 30 to meet the driving requirements of the driving member 40 while also reducing the impact of the ground obstacle. The torsion spring between the first articulated frame 24 and the second articulated frame 25, as well as the end face limit of the first articulated frame 24 and the second articulated frame 25, can significantly accelerate the resetting of the swing frame.

[0065] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A step assembly, characterized in that: include: a step bracket, used for connecting to the vehicle body; A swing frame, hinged to the step bracket; A lower step connected to the swing frame; and A driving member connected to the swing frame and the step support, and used for driving the swing frame to swing; The driving member includes a motor, a rotating frame and a driving frame, wherein the motor is fixed to the swing frame, the swing frame is provided with a supporting frame, the rotating frame is rotatably connected to the supporting frame, one end of the rotating frame is hinged to the stepping bracket through a straight groove, and the driving frame is fixed to the shaft of the motor and hinged to the straight groove at the other end of the rotating frame; The rotating frame is provided with a driving arm, which abuts against the swing frame and can drive the swing frame as the rotating frame rotates; Among them, when the step bracket swings toward the door handle, it can drive the lower step to move toward the door handle.

2. The step assembly according to claim 1, characterized in that: The swing frame includes a first articulated frame and a second articulated frame, the upper end of the first articulated frame is hinged to the step bracket, the second articulated frame is hinged to the lower end of the first articulated frame, the lower step is connected to the second articulated frame, and the driving member is connected to the first articulated frame.

3. The step assembly according to claim 1, characterized in that: The driving component includes a hydraulic cylinder, one end of the hydraulic cylinder is hinged to the step bracket, and the other end of the hydraulic cylinder is hinged to the swing frame.

4. The step assembly according to any one of claims 1 to 3, characterized in that: The step assembly further includes an upper step, which is fixed to the step bracket and is arranged above the lower step along the height direction of the step bracket.

5. The step assembly according to claim 4, characterized in that: The upper step includes a support plate and a step frame. Both ends of the support plate and the step frame are fixed to the step bracket. The step frame is located on the upper side of the support plate and forms a drainage gap with the support plate.

6. The step assembly according to claim 5, characterized in that: The step frame includes a plurality of U-shaped support frames arranged in sequence from the inside to the outside, each adjacent U-shaped support frame is fixedly connected, and the outermost U-shaped support frame is fixed to the step bracket.

7. The step assembly according to any one of claims 1 to 3, characterized in that: The lower step is provided with a plurality of anti-skid protrusions and a plurality of drainage holes, and the anti-skid protrusions enclose the drainage holes.

8. A vehicle, characterized in that: The invention comprises a step assembly as described in any one of claims 1 to 7.

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