Anti-tilting wheel of scooter and anti-tilting scooter

Abstract

The utility model discloses a scooter anti-tilting wheel which comprises a support, a roller and a one-way locking mechanism, the support is connected to a scooter frame of a scooter, the roller is pivoted to the support through a first pivoting shaft, and the one-way locking mechanism is arranged between the support and the roller so as to allow the roller to roll in one direction. And the roller is prevented from rolling towards the other direction. The scooter can be effectively prevented from sliding backwards and toppling over, and the use safety of the scooter is improved. In addition, the utility model further discloses an anti-toppling scooter.

Description

Technical Field

[0001] This utility model relates to a mobility scooter, and more particularly to a mobility scooter anti-roll wheel and an anti-roll mobility scooter. Background Technology

[0002] Most existing mobility scooters have an auxiliary wheel behind the rear wheel. This auxiliary wheel helps prevent the scooter from tipping over when it's unfolded. Additionally, when the scooter is folded up, it provides a point of contact with the ground, supporting the entire scooter along with the rear wheel. However, these auxiliary wheels can roll forward or backward. If the scooter accidentally tips over backward, the backward-rolling auxiliary wheel can cause it to slide backward, potentially leading to another tipping over. Similarly, if the scooter is folded up and tilts backward, the backward-rolling auxiliary wheel can also cause it to slide backward and tip over, resulting in insufficient stability. Therefore, the safety performance of existing auxiliary wheels on mobility scooters is not ideal. Utility Model Content

[0003] The purpose of this invention is to provide a mobility scooter anti-tipping wheel that can effectively prevent the scooter from sliding backward and tipping over, thereby improving the safety of the scooter.

[0004] Another objective of this invention is to provide a self-propelled mobility scooter that can prevent backward sliding and tipping, and has high safety features.

[0005] To achieve the above objectives, the anti-tilt wheel for the mobility scooter provided by this utility model includes a bracket, a roller, and a one-way locking mechanism. The bracket is connected to the frame of the mobility scooter, and the roller is pivotally connected to the bracket via a first pivot shaft. The one-way locking mechanism is disposed between the bracket and the roller to allow the roller to roll in one direction and prevent the roller from rolling in the other direction.

[0006] Compared with existing technologies, this invention incorporates a one-way locking mechanism between the bracket and the roller. This mechanism locks the roller in one direction, allowing it to roll in one direction while preventing it from rolling in the other. Therefore, when the roller is installed on the mobility scooter, the one-way locking mechanism allows the roller to roll forward while locking it backward. When the mobility scooter is unfolded and accidentally flips backward, or when it is folded and tilts backward, the locked roller provides more stable and powerful support, effectively preventing the scooter from sliding backward and tipping over, thus improving its safety.

[0007] Preferably, the one-way locking mechanism includes a braking element and a resetting element. One end of the braking element is pivotally connected to the bracket via a second pivot shaft. The resetting element is disposed between the braking element and the bracket and provides an elastic force to bring the other end of the braking element close to the roller, so that the other end of the braking element contacts the roller, thereby allowing the roller to roll in one direction and preventing the roller from rolling in the other direction. By using the resetting element to drive the braking element to adhere to the roller, frictional resistance can be provided to the roller, thereby preventing the roller from rolling. The structure is simple and has high stability.

[0008] Specifically, the brake member has a first contact portion at one end near and in contact with the roller. The first contact portion is located at the edge of the end face and is located on the line connecting the center of the first pivot shaft and the center of the second pivot shaft.

[0009] Specifically, the braking member extends from the first contact portion along one of the arcuate directions of the outer periphery of the roller to form an arcuate portion, which fits against the outer periphery of the roller. By providing a first contact portion at one end of the braking member, with the first contact portion located on the line connecting the center of the first pivot shaft and the center of the second pivot shaft, and then extending from the first contact portion along the arcuate direction of the outer periphery of the roller to form an arcuate portion fitting against the outer periphery of the roller, the braking member can be pushed away from the surface of the roller when the roller rolls in one direction. When the roller tends to roll in the other direction, it is blocked by the arcuate portion and thus locked, unable to roll, thereby achieving the purpose of unidirectional rolling.

[0010] Specifically, the reset element is a torsion spring. Through the elastic torque of the torsion spring, the braking element can automatically conform to the outer circumference of the roller. When the roller rolls in one direction, it can automatically lock. When the roller rolls in the other direction, the braking element can overcome the torque and disengage from the roller, thereby causing the roller to roll. The structure is very simple.

[0011] Specifically, the brake component has a limiting portion extending from the end away from the roller, and a limiting pin is provided on the bracket. When the brake component rotates towards the roller until it comes into contact with the roller, the limiting portion abuts against the limiting pin. The limiting portion prevents the brake component from swinging excessively, ensuring operational stability.

[0012] Preferably, the one-way locking mechanism includes a one-way bearing, and the roller is mounted on the first pivot shaft via the one-way bearing. The one-way bearing allows the roller to roll in one direction and prevents it from rolling in the other direction. By utilizing a one-way bearing, one-way rolling of the roller can also be achieved, thus solving the technical problem of this solution and obtaining the same technical effect.

[0013] An anti-rollover mobility scooter includes a frame, a front wheel, a rear wheel, and an anti-rollover wheel. The front wheel is located on the front side of the frame, the rear wheel is located on the rear side of the frame, and the anti-rollover wheel is connected to the frame and located behind the rear wheel.

[0014] Preferably, when the frame is tilted toward the rear wheel, the roller touches the ground and provides support to the frame.

[0015] Preferably, the frame is foldable. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the anti-tilt mobility scooter of this utility model when it is deployed and in use.

[0017] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0018] Figure 3 This is a diagram showing the state of the anti-tilt mobility scooter when its wheels are on the ground. Detailed Implementation

[0019] To explain in detail the technical content, structural features, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0020] like Figures 1 to 3 As shown, the anti-tilt mobility scooter 100 of this utility model includes a frame 1, a front wheel 2, a rear wheel 3, and an anti-tilt wheel 4. The frame 1 is foldably arranged. The front wheel 2 is located on the front side of the frame 1, and the rear wheel 3 is located on the rear side of the frame 1. The anti-tilt wheel 4 is connected to the frame 1 and located behind the rear wheel 3. When the frame 1 tilts towards the rear wheel 3, the anti-tilt wheel 4 touches the ground and provides support for the frame 1. Specifically, as follows:

[0021] Please see again Figure 2The anti-tilt wheel 4 of the mobility scooter includes a bracket 41, a roller 42, and a one-way locking mechanism 43. The bracket 41 is connected to the frame 1 of the mobility scooter. The roller 42 is pivotally connected to the bracket 41 via a first pivot shaft 421. The one-way locking mechanism 43 is disposed between the bracket 41 and the roller 42 to allow the roller 42 to roll in one direction and prevent the roller 42 from rolling in the other direction. The one-way locking mechanism 43 includes a brake member 431 and a reset member 432. One end of the brake member 431 is pivotally connected to the bracket 41 via a second pivot shaft 431a. The reset member 432 is disposed between the brake member 431 and the bracket 41 and provides an elastic force to bring the other end of the brake member 431 close to the roller 42, so that the other end of the brake member 431 contacts the roller 42, thereby allowing the roller 42 to roll in one direction and preventing the roller 42 from rolling in the other direction. By using a reset member 432 to drive the brake member 431 to adhere to the roller 42, frictional resistance is provided to the roller 42, thereby preventing the roller 42 from rolling. The structure is simple and highly stable. The reset member 432 is a torsion spring. Through the elastic torque of the torsion spring, the brake member 431 can automatically adhere to the outer circumference of the roller 42. When the roller 42 rolls in one direction, it can automatically lock. When the roller 42 rolls in the other direction, the brake member 431 can overcome the torque and disengage from the roller 42, thereby allowing the roller 42 to roll. The structure is very simple.

[0022] For example Figure 2As shown, the brake member 431 has a first contact portion 431b at one end near and in contact with the roller 42. The first contact portion 431b is located at the end face of the brake member 431 near the roller 42 and at the edge of the end face. Furthermore, the first contact portion 431b is located on the line connecting the center of the first pivot shaft 421 and the center of the second pivot shaft 431a. More specifically, the brake member 431 extends from the first contact portion 431b along one of the arcuate directions of the outer periphery of the roller 42 to form an arcuate portion 431c, which fits against the outer peripheral surface of the roller 42. By providing a first contact portion 431b at one end of the brake member 431, with the first contact portion 431b located on the line connecting the center of the first pivot shaft 421 and the center of the second pivot shaft 431a, and then extending from the first contact portion 431b along the arcuate direction of the outer periphery of the roller 42 to form an arcuate portion 431c that fits against the outer periphery of the roller 42, the roller 42 can be pushed away from the surface of the brake member 431 when rolling in one direction. When the roller 42 tends to roll in the other direction, it is blocked by the arcuate portion 431c and locked, thus achieving unidirectional rolling. Specifically, refer to the accompanying drawings of this specification. Figure 2 For reference, the first contact portion 431b is disposed on the end face of the brake member 431 near the roller 42 and is located at the uppermost side of that end face. This end of the brake member 431 extends counterclockwise from the first contact portion 431b along the outer periphery of the roller 42 to form an arc-shaped portion 431c. In this case, the roller 42 cannot rotate clockwise (i.e., rolls backwards on the scooter), but can rotate counterclockwise (i.e., rolls forwards on the scooter). The first contact portion 431b can make point contact or line contact with the roller 42. The arc-shaped portion 431c is an arc-shaped surface that mates with the roller 42.

[0023] Please see again Figure 2 The brake element 431 has a limiting portion 431d extending from one end away from the roller 42, and a limiting pin 411 is provided on the bracket 41. When the brake element 431 rotates towards the roller 42 and comes into contact with the roller 42, the limiting portion 431d abuts against the limiting pin 411. The limiting portion 431d can prevent the brake element 431 from swinging excessively and ensure operational stability.

[0024] Compared with the prior art, this utility model provides a one-way locking mechanism 43 between the bracket 41 and the roller 42. This mechanism locks the roller 42 in one direction, allowing it to roll in one direction while preventing it from rolling in the other. Therefore, when the roller 42 is installed on the mobility scooter, the one-way locking mechanism 43 allows the roller 42 to roll forward, while locking it backward. When the mobility scooter 200 is unfolded and accidentally flips backward, or when folded and tilts backward, the locked roller 42 provides more stable and powerful support, effectively preventing the mobility scooter 200 from sliding backward and tipping over, thus improving the safety of using the mobility scooter 200.

[0025] In another preferred embodiment, the one-way locking mechanism includes a one-way bearing (not shown), and the roller 42 is mounted on the first pivot shaft 421 via the one-way bearing. The one-way bearing allows the roller 42 to roll in one direction and prevents it from rolling in the other direction. By utilizing a one-way bearing, the one-way rolling of the roller 42 can also be achieved, thus solving the technical problem of this solution and obtaining the same technical effect.

[0026] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A roll-over protection wheel for a mobility scooter, characterized by: The invention relates to a scooter anti-tilt wheel comprising a bracket, a roller and a one-way locking mechanism, wherein the bracket is connected to a frame of a scooter, the roller is pivoted to the bracket through a first pivot shaft, and the one-way locking mechanism is arranged between the bracket and the roller to allow the roller to roll in one direction and prevent the roller from rolling in the other direction.

2. The wheel of claim 1, wherein: The one-way locking mechanism comprises a brake and a return element, wherein one end of the brake is pivoted to the bracket through a second pivot shaft, and the return element is arranged between the brake and the bracket and provides an elastic force to make the other end of the brake close to the roller, so that the other end of the brake contacts the roller, thereby allowing the roller to roll in one direction and preventing the roller from rolling in the other direction.

3. The wheel of claim 2, wherein: The end of the brake close to the roller and contacting the roller is provided with a first contact part, which is located at the edge of the end face and on the line connecting the center of the first pivot shaft and the center of the second pivot shaft.

4. The wheel of claim 3, wherein: The brake extends from the first contact part along one arc direction of the outer periphery of the roller to form an arc part, which is in contact with the outer periphery of the roller.

5. The wheel of claim 2, wherein: The return element is a torsion spring.

6. The wheel of claim 2, wherein: The end of the brake away from the roller is provided with a limiting part, and the bracket is provided with a limiting pin, when the brake rotates to the direction close to the roller and contacts the roller, the limiting part abuts against the limiting pin.

7. The wheel of claim 1, wherein: The one-way locking mechanism comprises a one-way bearing, and the roller is sleeved on the first pivot shaft through the one-way bearing, which allows the roller to roll in one direction and prevents the roller from rolling in the other direction.

8. A rollator characterized in that: The invention relates to a scooter anti-tilt wheel comprising a bracket, a roller and a one-way locking mechanism, wherein the bracket is connected to a frame of a scooter, the roller is pivoted to the bracket through a first pivot shaft, and the one-way locking mechanism is arranged between the bracket and the roller to allow the roller to roll in one direction and prevent the roller from rolling in the other direction.

9. The anti-tip walker of claim 8, wherein: The one-way locking mechanism comprises a brake and a return element, wherein one end of the brake is pivoted to the bracket through a second pivot shaft, and the return element is arranged between the brake and the bracket and provides an elastic force to make the other end of the brake close to the roller, so that the other end of the brake contacts the roller, thereby allowing the roller to roll in one direction and preventing the roller from rolling in the other direction.

10. The anti-tip walker of claim 8, wherein: The end of the brake close to the roller and contacting the roller is provided with a first contact part, which is located at the edge of the end face and on the line connecting the center of the first pivot shaft and the center of the second pivot shaft. The brake extends from the first contact part along one arc direction of the outer periphery of the roller to form an arc part, which is in contact with the outer periphery of the roller. The return element is a torsion spring. The end of the brake away from the roller is provided with a limiting part, and the bracket is provided with a limiting pin, when the brake rotates to the direction close to the roller and contacts the roller, the limiting part abuts against the limiting pin. The one-way locking mechanism comprises a one-way bearing, and the roller is sleeved on the first pivot shaft through the one-way bearing, which allows the roller to roll in one direction and prevents the roller from rolling in the other direction. The invention relates to a scooter anti-tilt wheel comprising a bracket, a roller and a one-way locking mechanism, wherein the bracket is connected to a frame of a scooter, the roller is pivoted to the bracket through a first pivot shaft, and the one-way locking mechanism is arranged between the bracket and the roller to allow the roller to roll in one direction and prevent the roller from rolling in the other direction. The one-way locking mechanism comprises a brake and a return element, wherein one end of the brake is pivoted to the bracket through a second pivot shaft, and the return element is arranged between the brake and the bracket and provides an elastic force to make the other end of the brake close to the roller, so that the other end of the brake contacts the roller, thereby allowing the roller to roll in one direction and preventing the roller from rolling in the other direction. The end of the brake close to the roller and contacting the roller is provided with a first contact part, which is located at the edge of the end face and on the line connecting the center of the first pivot shaft and the center of the second pivot shaft. The brake extends from the first contact part along one arc direction of the outer periphery of the roller to form an arc part, which is in contact with the outer periphery of the roller. The return element is a torsion spring. The end of the brake away from the roller is provided with a limiting part, and the bracket is provided with a limiting pin, when the brake rotates to the direction close to the roller and contacts the roller, the limiting part abuts against the limiting pin. The one-way locking mechanism comprises a one-way bearing, and the roller is sleeved on the first pivot shaft through the one-way bearing, which allows the roller to roll in one direction and prevents the roller from rolling in the other direction.

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