A scooter wheel steering structure

Abstract

The utility model discloses a kind of scooter wheel steering structure. It includes steering shaft, the front end of the steering shaft is fixedly connected with connecting seat, steering seat is sleeved on the steering shaft, the steering seat is rotatably connected with the steering shaft, the steering seat is symmetrically equipped with wheel axle on left and right sides, the wheel axle is left-right direction setting, the wheel axle is rotatably connected with the steering seat, the top of the connecting seat is equipped with adjusting shaft, the adjusting shaft is left-right direction setting, the left and right ends of the adjusting shaft are connected with the wheel axle of corresponding side through universal connecting structure universally.The utility model has the advantages of good steering ability, enhancing the ground adhesion of scooter wheel.

Description

Technical Field

[0001] This utility model relates to the field of scooter steering technology, and in particular to a scooter wheel steering structure. Background Technology

[0002] With the development of technology and the improvement of people's living standards, scooters have become one of the most commonly used tools for entertainment, play, and transportation. However, most traditional scooters are three-wheeled scooters with poor steering ability. As children grow, the acceleration force they exert on the scooter when stepping on the ground increases, and the scooter speed increases. When turning, the scooter frame is prone to tilting, causing children to fall off the scooter. The poor steering ability and the tendency of traditional scooters to tilt when going diagonally over slopes also lead to children falling off the scooter. Furthermore, the poor ground contact of the scooter wheels. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, this utility model provides a scooter wheel steering structure, which has the advantages of good steering ability and enhanced scooter wheel ground contact.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a scooter wheel steering structure, including a steering shaft, a connecting seat fixedly connected to the front end of the steering shaft, a steering seat sleeved on the steering shaft, the steering seat being rotatably connected to the steering shaft, wheel axles symmetrically arranged on the left and right sides of the steering seat, the wheel axles being arranged in a left-right direction, the wheel axles being rotatably connected to the steering seat, an adjustment shaft provided on the top of the connecting seat, the adjustment shaft being arranged in a left-right direction, and the left and right ends of the adjustment shaft being universally connected to the wheel axle on the corresponding side through a universal connection structure.

[0006] In this design, the connecting seat is connected to the scooter frame, and the wheel axle is rotatably connected to the scooter wheels. When the scooter turns, the user can steer the front wheel using the handlebars. Simultaneously, the user can tilt the scooter frame towards the apex of the curve, shifting their center of gravity towards the apex to counteract centrifugal force during the turn. As the scooter frame and connecting seat tilt, the adjusting axle tilts synchronously. The adjusting axle, through a universal joint at one end, drives the wheel axle to rotate, causing both wheels to tilt synchronously towards the apex and remain in contact with the ground. At the same time, the two wheel axles cause the steering seat to tilt synchronously. The steering seat causes the elastic block in the elastic reset sleeve on the side away from the apex to press against the tilted connecting seat, allowing the scooter to smoothly pass through the curve. After passing the curve, the user's center of gravity returns to the center, and the scooter frame and connecting seat return to the center under the action of the elastic reset sleeve. When the scooter travels diagonally over a slope, the wheel at the higher position contacts the slope and tilts towards the top. At the same time, the steering seat drives the axle of the other wheel to rotate synchronously, causing the wheel at the lower position on the other side to tilt towards the top. After the two wheels tilt, they form an angle with the horizontal plane and always remain parallel to ensure ground contact. The universal joint structure keeps the connecting seat and the adjustment shaft horizontal, ultimately allowing the scooter frame to remain horizontal when traveling diagonally over a slope, preventing the user from falling off the scooter.

[0007] Preferably, the projection of the steering shaft is located at the center of the adjustment shaft.

[0008] Preferably, the wheel axle includes a first axle body, a first connecting block, and a second axle body arranged sequentially from the inside to the outside. Both the first axle body and the second axle body are arranged in a left-right direction. The outer side of the first axle body is fixedly connected to the front end of the inner side of the first connecting block, and the inner side of the second axle body is fixedly connected to the rear end of the outer side of the first connecting block. The rear side of the universal joint structure is universally connected to the top of the first connecting block on the corresponding side, and the front side of the universal joint structure is universally connected to one end of the adjustment shaft.

[0009] Preferably, a second connecting block is vertically arranged on the top of the first connecting block, and the rear side of the connecting structure is universally connected to the inner side of the corresponding second connecting block.

[0010] Preferably, the universal connection structure includes a connecting rod and ball joint connection structures disposed on the front and rear sides of the connecting rod. The ball joint connection structure includes a ball joint connecting rod and a connecting ball joint universally connected to the ball joint connecting rod. The ball joint connecting rod is connected to the corresponding side of the connecting rod. The connecting ball joint located on the front side is fixedly connected to the corresponding end of the adjusting shaft. The connecting ball joint located on the rear side is fixedly connected to the inner side of the second connecting block on the corresponding side.

[0011] Preferably, the connecting rod has a positive thread and a negative thread at its front and rear ends, respectively, and the ball joint is threaded to one end of the connecting rod.

[0012] By rotating the connecting rod, the distance between the ball joints at both ends of the connecting rod can be increased or decreased, thereby increasing or decreasing the distance between the connecting seat and the ground. Ultimately, this changes the scooter's ground clearance, preventing the scooter frame from contacting obstacles and enhancing the scooter's maneuverability.

[0013] Preferably, the steering shaft is inclined downwards from front to back.

[0014] Preferably, the angle between the steering shaft and the horizontal plane is in the range of 30° to 60°.

[0015] When the steering seat rotates, the angle between the connecting rod and the second connecting block is fixed to ensure that the rotation angles of the left and right wheel axles are consistent, so that the two wheels always remain parallel.

[0016] Preferably, an elastic reset sleeve is fitted onto the first shaft body, the elastic reset sleeve being used to reset the first shaft body.

[0017] The elastic reset sleeve allows the first axle to reset quickly, and the first axle drives the wheel to reset.

[0018] Preferably, the elastic reset sleeve includes an elastic sleeve and an annular elastic block. The elastic sleeve is sleeved on the first shaft, and the elastic block is sleeved on the elastic sleeve and located inside the elastic sleeve. The inner side of the elastic block abuts against the corresponding side of the connecting seat, and the outer side of the elastic sleeve abuts against the inner side of the corresponding first connecting block.

[0019] The beneficial effects of this utility model are as follows: When turning, the user can control the scooter frame to tilt towards the center of the curve, thereby tilting their center of gravity towards the center of the curve to counteract the centrifugal force when turning, allowing the scooter to smoothly pass through the curve; when passing diagonally over a slope, the two wheels can tilt towards the top of the slope simultaneously and always remain parallel to each other to ensure ground contact; the rotating connecting rod can adjust the distance between the connecting seat and the ground to increase or decrease, thereby changing the scooter's ground clearance; the elastic reset sleeve can quickly reset the wheel axle and the connecting seat back to the correct position. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the steering shaft in this utility model;

[0022] Figure 3 This is a structural schematic diagram of the present invention from another perspective;

[0023] Figure 4 This is a schematic diagram of the structure of this utility model after removing the elastic reset sleeve;

[0024] Figure 5 yes Figure 3 A magnified view of a portion of point A in the middle.

[0025] In the diagram: 1. Steering shaft, 2. Connecting seat, 3. Steering seat, 4. Wheel axle, 41. First shaft body, 42. First connecting block, 421. Second connecting block, 43. Second shaft body, 5. Adjusting shaft, 51. Connecting ball head, 6. Connecting rod, 61. Ball head connecting rod, 7. Elastic reset sleeve, 71. Elastic block, 72. Elastic sleeve, 8. Scooter wheel. Detailed Implementation

[0026] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0027] Example: A scooter wheel steering structure according to this example, such as... Figures 1 to 5 As shown, it includes a steering shaft 1, a connecting seat 2 fixedly connected to the front end of the steering shaft 1, a steering seat 3 sleeved on the steering shaft 1, the steering seat 3 being rotatably connected to the steering shaft 1, wheel axles 4 symmetrically arranged on the left and right sides of the steering seat 3, the wheel axles 4 being arranged in a left-right direction, the wheel axles 4 being rotatably connected to the steering seat 3, an adjustment shaft 5 is provided on the top of the connecting seat 2, the adjustment shaft 5 being arranged in a left-right direction, and the left and right ends of the adjustment shaft 5 being universally connected to the wheel axle 4 on the corresponding side through a universal connection structure.

[0028] The projection of steering shaft 1 is located at the center of adjustment shaft 5.

[0029] The wheel axle 4 includes a first axle 41, a first connecting block 42, and a second axle 43 arranged sequentially from the inside to the outside. Both the first axle 41 and the second axle 43 are arranged in a left-right direction. The outer side of the first axle 41 is fixedly connected to the front end of the inner side of the first connecting block 42, and the inner side of the second axle 43 is fixedly connected to the rear end of the outer side of the first connecting block 42. The rear side of the universal joint structure is universally connected to the top of the first connecting block 42 on the corresponding side, and the front side of the universal joint structure is universally connected to one end of the adjustment shaft 5.

[0030] A second connecting block 421 is vertically arranged on the top of the first connecting block 42, and the rear side of the connecting structure is universally connected to the inner side of the corresponding second connecting block 421.

[0031] The universal connection structure includes a connecting rod 6 and ball joint connection structures disposed on the front and rear sides of the connecting rod 6. The ball joint connection structure includes a ball joint connecting rod 61 and a connecting ball joint 51 universally connected to the ball joint connecting rod 61. The ball joint connecting rod 61 is connected to the corresponding side of the connecting rod 6. The connecting ball joint 51 located on the front side is fixedly connected to the corresponding end of the adjusting shaft 5. The connecting ball joint 51 located on the rear side is fixedly connected to the inner side of the corresponding side of the second connecting block 421.

[0032] The connecting rod 6 has a positive thread and a negative thread at its front and rear ends, respectively. The ball joint connecting rod 61 has a threaded hole on its inner side, and the ball joint connecting rod 61 is threaded to one end of the connecting rod 6. The connecting rod 6 on the same side and the two ball joint connecting rods 61 are located on the same straight line.

[0033] The steering shaft 1 is inclined downward from front to back, and the angle between the steering shaft 1 and the horizontal plane ranges from 30° to 60°.

[0034] An elastic reset sleeve 7 is fitted on the first shaft 41. The elastic reset sleeve 7 includes an elastic sleeve 72 and an annular elastic block 71. The elastic sleeve 72 is fitted on the first shaft 41, and the elastic block 71 is fitted on the elastic sleeve 72 and located inside the elastic sleeve 72. The inner side of the elastic block 71 abuts against the corresponding side of the connecting seat 2, and the outer side of the elastic sleeve 72 abuts against the inner side of the corresponding first connecting block 42.

[0035] In this design, the connecting seat is connected to the scooter frame, and the wheel axle is rotatably connected to the scooter wheel 8. When the scooter turns, the user can steer the front wheel using the handlebars on the front side. At the same time, the user can control the scooter frame to tilt towards the center of the curve, thus tilting their own center of gravity towards the center of the curve to counteract the centrifugal force when turning. As the scooter frame and connecting seat tilt, the adjusting axle tilts synchronously. The adjusting axle drives the wheel axle to rotate through the universal joint structure at one end, so that both wheels tilt synchronously towards the center of the curve and always remain in contact with the ground. At the same time, the two wheel axles drive the steering seat to tilt synchronously, allowing the scooter to smoothly turn, and the elastic reset sleeve is compressed. After turning, the user's center of gravity returns to the center, and under the action of the elastic reset sleeve, the scooter frame and connecting seat return to the center.

[0036] When the scooter travels diagonally over a slope, the wheel at the higher position contacts the slope and tilts towards the top. Simultaneously, the steering seat drives the axle of the other wheel to rotate synchronously, causing the wheel at the lower position to tilt towards the top. At the same time, the elastic reset sleeve is compressed, and the two wheels, after tilting, form an angle with the horizontal plane and remain parallel to ensure grounding. The universal joint structure keeps the connecting seat and the adjusting shaft horizontal, ultimately allowing the scooter frame to remain horizontal even when traveling diagonally over a slope, preventing the user from falling off. After the scooter returns to flat ground, the elastic reset sleeve returns the two wheel axles to their original position.

[0037] The elastic block can increase the contact area between the elastic reset sleeve and the connecting seat, thus speeding up the reset and return process.

[0038] By rotating the connecting rod, the distance between the ball joints at both ends can be increased or decreased, thereby increasing or decreasing the distance between the connecting seat and the ground. This changes the scooter's ground clearance, preventing the frame from contacting obstacles and improving its maneuverability. However, errors in wheel axle manufacturing can cause misalignment after assembly, resulting in uneven wheels. This can be corrected by rotating the connecting rod on the corresponding side to align the wheels.

Claims

1. A scooter wheel steering structure, characterized in that: Includes a steering shaft (1), with a connecting seat (2) fixedly connected to the front end of the steering shaft (1), a steering seat (3) sleeved on the steering shaft (1), the steering seat (3) being rotatably connected to the steering shaft (1), wheel axles (4) symmetrically arranged on the left and right sides of the steering seat (3), the wheel axles (4) being arranged in a left-right direction, the wheel axles (4) being rotatably connected to the steering seat (3), an adjustment shaft (5) is provided on the top of the connecting seat (2), the adjustment shaft (5) being arranged in a left-right direction, and the left and right ends of the adjustment shaft (5) being connected to the wheel axle (4) on the corresponding side through a universal joint structure.

2. The scooter wheel steering structure according to claim 1, characterized in that: The projection of the steering shaft (1) is located at the center of the adjustment shaft (5).

3. The scooter wheel steering structure according to claim 1, characterized in that: The wheel axle (4) includes a first axle body (41), a first connecting block (42), and a second axle body (43) arranged sequentially from the inside to the outside. The first axle body (41) and the second axle body (43) are arranged in a left-right direction. The outer side of the first axle body (41) is fixedly connected to the front end of the inner side of the first connecting block (42), and the inner side of the second axle body (43) is fixedly connected to the rear end of the outer side of the first connecting block (42). The rear side of the universal joint structure is universally connected to the top of the first connecting block (42) on the corresponding side, and the front side of the universal joint structure is universally connected to one end of the adjustment shaft (5).

4. The scooter wheel steering structure according to claim 3, characterized in that: The top of the first connecting block (42) is vertically provided with a second connecting block (421), and the rear side of the universal connection structure is universally connected to the inner side of the corresponding second connecting block (421).

5. The scooter wheel steering structure according to claim 4, characterized in that: The universal connection structure includes a connecting rod (6) and ball joint connection structures disposed on the front and rear sides of the connecting rod (6). The ball joint connection structure includes a ball joint connecting rod (61) and a connecting ball joint (51) universally connected to the ball joint connecting rod (61). The ball joint connecting rod (61) is connected to the corresponding side of the connecting rod (6). The connecting ball joint (51) located on the front side is fixedly connected to one end of the adjusting shaft (5). The connecting ball joint (51) located on the rear side is fixedly connected to the inner side of the second connecting block (421) on the corresponding side.

6. A scooter wheel steering structure according to claim 5, characterized in that: The connecting rod (6) has a positive thread and a negative thread at its front and rear ends, respectively, and the ball head connecting rod (61) is threaded to one end of the connecting rod (6).

7. The scooter wheel steering structure according to claim 1, characterized in that: The steering shaft (1) is inclined downward from front to back.

8. A scooter wheel steering structure according to claim 7, characterized in that: The angle between the steering shaft (1) and the horizontal plane ranges from 30° to 60°.

9. A scooter wheel steering structure according to claim 3, characterized in that: An elastic reset sleeve (7) is fitted on the first shaft (41), and the elastic reset sleeve (7) is used to reset the first shaft.

10. A scooter wheel steering structure according to claim 9, characterized in that: The elastic reset sleeve (7) includes an elastic sleeve (72) and an annular elastic block (71). The elastic sleeve (72) is sleeved on the first shaft (41). The elastic block (71) is sleeved on the elastic sleeve (72) and located inside the elastic sleeve (72). The inner side of the elastic block (71) abuts against the corresponding side of the connecting seat (2). The outer side of the elastic sleeve (72) abuts against the inner side of the corresponding first connecting block (42).

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