Steering damper bridge for four-wheel electric skateboard

Abstract

The invention discloses a steering damper bridge for a four-wheel electric skateboard, and the bridge comprises a pedestal which is disposed on the electric skateboard; the bridge arm is rotationally connected with the base; and the damping adjusting mechanism is arranged between the base and the bridge arm. A mounting column is arranged at one end of the bridge arm, a first bearing is arranged on the mounting column, a bearing containing cavity is formed in the base, and the first bearing is arranged in the bearing containing cavity. A damping containing cavity is formed in the base, damping liquid is arranged in the damping containing cavity, the damping adjusting mechanism comprises an execution unit and an adjusting unit, the execution unit is arranged in the damping containing cavity, the adjusting unit is arranged outside the base, and the execution unit is connected with the adjusting unit. The execution unit comprises a swing plate, the swing plate is rotationally arranged in the damping containing cavity through a second bearing, a guide block is arranged at the lower end of the swing plate, a sliding groove is formed in the mounting column, the guide block is arranged in the sliding groove, and the swing plate swings through movement of the sliding groove. The problem that damping of a skateboard steering bridge is inconvenient to adjust is solved.

Description

Technical Field

[0001] The invention relates to the field of skateboard accessory structures, and in particular to a steering damper bridge for a four-wheel electric skateboard. Background Art

[0002] Traditional four-wheel electric skateboard steering axles often feature simple rigid connections and lack effective damping adjustment mechanisms. This can lead to uncontrolled shaking at high speeds or on bumpy roads, which not only affects riding comfort but also poses a safety hazard. Some steering systems with damping functions have complex damping adjustment methods that require specialized tools and skills, making them difficult for average users to adjust and flexibly adjust the damping level to meet specific needs. Summary of the Invention

[0003] The purpose of the present invention is to provide a steering damper bridge for a four-wheel electric skateboard in order to solve the above problems, so as to solve the problem that the existing skateboard steering bridge is inconvenient to adjust the damping.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a steering damper bridge for a four-wheel electric skateboard, comprising: A base, mounted on the electric skateboard; The bridge arm is rotatably connected to the base and is used to mount the wheel assembly; the wheel assembly includes at least a wheel and a wheel drive structure; The damping adjustment mechanism is arranged between the base and the bridge arm.

[0005] As a further improvement of the above technical solution: A mounting column is provided at one end of the bridge arm, a first bearing is provided on the mounting column, a bearing accommodating cavity is provided on the base, and the first bearing is arranged in the bearing accommodating cavity.

[0006] A damping accommodating chamber is provided in the base, and damping fluid is provided in the damping accommodating chamber. The damping adjustment mechanism includes an execution unit and an adjustment unit. The execution unit is provided in the damping accommodating chamber, and the adjustment unit is provided outside the base. The execution unit and the adjustment unit are connected.

[0007] The execution unit includes a swing plate, which is rotatably arranged in the damping accommodating chamber through a second bearing. A guide block is provided at the lower end of the swing plate, and a slide groove is provided on the mounting column. The guide block is slidably arranged in the slide groove, and the swing plate swings through the movement of the slide groove.

[0008] The base includes a left mounting block and a right mounting block. The right mounting block is provided with a liquid passage hole. The adjustment unit is provided on one side of the liquid passage hole and is communicated with the liquid passage hole.

[0009] The damping fluid is a magnetorheological fluid, and the regulating unit is a magnetic field regulator, which is used to change the magnetic field and thus the fluidity of the magnetorheological fluid.

[0010] The regulating unit includes a first regulating block and a second regulating block. A plurality of liquid passages are provided between the first regulating block and the second regulating block. The liquid passages are connected to the liquid passage holes.

[0011] The liquid passage is provided with an adjusting channel, and an adjusting plug is provided in the adjusting channel. The fluidity of the damping liquid can be changed by adjusting the position of the adjusting plug in the adjusting channel.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The unique damping adjustment component allows for flexible adjustment of the damping force according to different driving speeds and road conditions. At high speeds, increasing the damping force effectively suppresses swaying and improves driving stability; while reducing the damping force during slow turns or on bumpy roads allows for more flexible steering and improved handling. The user-friendly design of the adjustment bolt allows ordinary users to easily adjust the damping size to meet the personalized needs of different users. No professional skills and tools are required, which lowers the threshold for use. Without changing the basic steering structure of the skateboard, the stability during sliding is increased. The shock-absorbing oil chamber adopts a sealed structure and is filled with shock-absorbing oil of a specific viscosity, which can effectively absorb and buffer the vibration and impact force generated during steering. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the explosion structure of the present invention; Figure 3 Schematic diagram of the bridge arm structure of the present invention; Figure 4 This is a front view of the right mounting block of the present invention; Figure 5 This is a rear view of the right mounting block of the present invention; Figure 6 This is a perspective view of the right mounting block of the present invention; Figure 7 This is the front view of the left mounting block of the present invention; Figure 8 This is a perspective view of the left mounting block of the present invention; Figure 9 This is a front view of the swing plate of the present invention; Figure 10 It is a side view of the swing plate of the present invention; Figure 11 This is a multi-viewing diagram of the first adjustment block of the present invention; Figure 12 This is a multi-viewing diagram of the second adjustment block of the present invention; Figure 13 This is a schematic diagram of the installation of the regulating plug of the present invention.

[0015] The accompanying drawings are marked as follows: 1. Base; 100. Left mounting block; 11. Bearing accommodating chamber; 110. Right mounting block; 111. Liquid hole; 12. Damping accommodating chamber; 2. Bridge arm; 21. Mounting column; 211. Slide groove; 22. First bearing; 23. Second bearing; 3. Damping adjustment mechanism; 30. Swing plate; 311. Guide block; 31. Second adjustment block; 32. Second adjustment block; 33. Liquid passage; 34. Adjustment channel. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementations obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0017] like Figure 1 As shown, the steering damper bridge for a four-wheel electric skateboard of this embodiment includes: Base 1, mounted on the electric skateboard; The bridge arm 2 is rotatably connected to the base 1 and is used to install the wheel assembly; The damping adjustment mechanism 3 is arranged between the base 1 and the bridge arm 2 .

[0018] like Figures 2 to 8As shown, the base 1 includes a left mounting block 100 and a right mounting block 110, which are connected by bolts. A damping accommodating chamber 12 is provided in the base 1, and damping fluid is provided in the damping accommodating chamber 12. The damping adjustment mechanism 3 includes an actuator and an adjustment unit. The actuator is provided in the damping accommodating chamber 12, and the adjustment unit is provided outside the base 1. The actuator and adjustment units are connected. A mounting column 21 is provided at one end of the bridge arm 2, and a first bearing 22 is provided on the mounting column 21. A bearing accommodating chamber 11 is provided on the base 1, and the first bearing 22 is provided in the bearing accommodating chamber 11. A liquid hole 111 is provided on the right mounting block 110, and the adjustment unit is provided on one side of the liquid hole 111 and is connected to the liquid hole 111. The first bearing 22 is a sealed ball bearing.

[0019] like Figure 9 and Figure 10 As shown, the execution unit includes a swing plate 30, which is rotatably arranged in the damping accommodating chamber 12 through the second bearing 23. A guide block 311 is provided at the lower end of the swing plate 30, and a slide groove 211 is provided on the mounting column 21. The guide block 311 is slidably arranged in the slide groove 211, and the swing plate 30 swings through the movement of the slide groove 211.

[0020] In one embodiment, the damping fluid is a magnetorheological fluid, and the regulating unit is a magnetic field regulator for changing the magnetic field. By changing the magnetic field by the regulating unit, the state of the magnetorheological fluid changes, thereby changing the fluidity of the magnetorheological fluid.

[0021] In another embodiment, Figures 11 to 13 As shown, the adjustment unit includes a first adjustment block 31 and a second adjustment block 32. Several fluid passages 33 are defined between the first and second adjustment blocks 31 and 32, and are connected to the fluid passage holes 111. Adjustment channels 34 are provided on the fluid passages 33, and adjustment plugs are installed within the adjustment channels 34. Adjusting the position of the adjustment plugs within the adjustment channels 34 changes the fluidity of the damping fluid. The first and second adjustment blocks 31 and 32 are mounted on the base 1 via bolts.

[0022] The swing plate 30 here is the oil sweeping valve, which is rotatably mounted in the damping accommodating chamber 12, into which shock-absorbing oil is injected. A curved groove is provided on the cylindrical surface of the mounting column 21 of the bridge arm 2. When the cylinder rotates, the guide block 311 is geometrically constrained by the groove to realize the motion law of the cam curve. The oil sweeping valve swings. When the mounting column 21 rotates around the axis, the oil sweeping valve is forced to squeeze the shock-absorbing oil inside. Since the shock-absorbing oil is incompressible, the oil flows through the liquid hole 111. Since the area of the small hole is small, resistance is generated when the oil flows through the small hole. The oil enters the liquid channel 33 from the oil hole of the first adjustment block 31 and flows back to the oil chamber at the other end of the oil sweeping valve. The first adjustment block 3 features three threaded holes (i.e., adjustment channels 34) and three rows of through holes. These holes are fitted with bolts (i.e., adjustment plugs). When the bolts are screwed in, they block the first hole, reducing the oil flow area by one smaller hole, correspondingly increasing resistance. Similarly, when one row of holes is completely closed from back to front, the steering angle decreases, and so on. The entire product housing is CNC-manufactured from aluminum. Due to assembly requirements, it is divided into two halves, the left and right. Internal components are also CNC-manufactured, requiring high precision to achieve a perfect seal. Seals are incorporated into all mating parts, including O-rings, sealing strips, and sealed bearing caps.

[0023] Installation: Use the temperature differential assembly method to cool the entire bridge arm 2. Install the two sealed ball bearings (first bearing 22) on the mounting post 21 of the bridge arm 2. Apply waterproof and oil-blocking glue to the two bearing mounting locations on the base 1 to ensure a tight seal. Similarly, assemble the swing plate 30 and second bearing 23 using the temperature differential assembly method. After cooling the swing plate 30, install the second bearing 23. Apply waterproof and oil-blocking glue to the corresponding location on the base 1 and install the oil purge valve components. After installation, rotate the bridge arm 2 to check for proper installation. After the internal parts are installed, apply a layer of waterproof and oil-blocking glue and a paper sealing gasket to the mounting surfaces of the left and right mounting blocks 100 and 110. Install the first and second adjustment blocks 31 and 32 in the same manner. After installation, debug the steering damper bridge. Actual steering by pushing the skateboard to experience the steering effect at different damping settings and adjust the damping level according to actual needs. For ease of use, a piston is installed at the bottom of the adjusting bolt to provide a seal. When the adjusting bolt is rotated, the piston moves up and down within the adjustment channel 34. By changing the position of the piston, the flow resistance of the shock absorber oil is adjusted, thereby achieving the adjustment of the damping force. Specifically, when the piston moves downward, the flow rate of the shock absorber oil through the orifice on the piston increases, increasing the damping force; when the piston moves upward, the flow rate of the shock absorber oil decreases, reducing the damping force.

[0024] This invention utilizes a unique damping adjustment assembly to flexibly adjust the damping force according to driving speed and road conditions. Increasing the damping force at high speeds effectively suppresses sway and improves driving stability. Reducing the damping force during slow turns or on bumpy roads enhances steering flexibility and handling. The user-friendly design of the adjustment bolt allows ordinary users to easily adjust the damping force to meet their individual needs. No specialized skills or tools are required, lowering the barrier to entry. The steering angle can be adjusted as needed.

[0025] Within the technical scope disclosed by the present invention, any changes or substitutions that can be easily imagined should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A steering damper bridge for a four-wheel electric skateboard, characterized in that: include: A base (1) is mounted on the electric skateboard; A bridge arm (2) is rotatably connected to the base (1) and is used for mounting a wheel assembly; The damping adjustment mechanism (3) is arranged between the base (1) and the bridge arm (2).

2. The steering damper bridge for a four-wheel electric skateboard according to claim 1, characterized in that: A mounting column (21) is provided at one end of the bridge arm (2), a first bearing (22) is provided on the mounting column (21), a bearing accommodating cavity (11) is provided on the base (1), and the first bearing (22) is arranged in the bearing accommodating cavity (11).

3. The steering damper bridge for a four-wheel electric skateboard according to claim 2, characterized in that: A damping accommodating chamber (12) is provided in the base (1), and damping fluid is provided in the damping accommodating chamber (12). The damping adjustment mechanism (3) comprises an execution unit and an adjustment unit. The execution unit is provided in the damping accommodating chamber (12), and the adjustment unit is provided outside the base (1). The execution unit and the adjustment unit are connected.

4. The steering damper bridge for a four-wheel electric skateboard according to claim 3, characterized in that: The execution unit includes a swing plate (30), the swing plate (30) is rotatably arranged in the damping accommodating chamber (12) via a second bearing (23), a guide block (311) is provided at the lower end of the swing plate (30), a slide groove (211) is provided on the mounting column (21), and the guide block (311) is slidably arranged in the slide groove (211), so that the swing plate (30) swings through the movement of the slide groove (211).

5. The steering damper bridge for a four-wheel electric skateboard according to claim 4, characterized in that: The base (1) comprises a left mounting block (100) and a right mounting block (110); a liquid passage hole (111) is provided on the right mounting block (110); and the regulating unit is arranged on one side of the liquid passage hole (111) and communicates with the liquid passage hole (111).

6. The steering damper bridge for a four-wheel electric skateboard according to claim 2, characterized in that: The damping fluid is a magnetorheological fluid, and the regulating unit is a magnetic field regulator, which is used to change the magnetic field and thus the fluidity of the magnetorheological fluid.

7. The steering damper bridge for a four-wheel electric skateboard according to claim 5, characterized in that: The regulating unit comprises a first regulating block (31) and a second regulating block (32), a plurality of liquid passages (33) are provided between the first regulating block (31) and the second regulating block (32), and the liquid passages (33) are connected to the liquid passage holes (111).

8. The steering damper bridge for a four-wheel electric skateboard according to claim 7, characterized in that: The liquid passage (33) is provided with an adjusting channel (34), and an adjusting plug is provided in the adjusting channel (34). By adjusting the position of the adjusting plug in the adjusting channel (34), the fluidity of the damping liquid is changed.

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