Folding scooter

Abstract

The folding scooter comprises a folding frame, and the folding frame comprises a bottom frame, a first supporting rod, a second supporting rod, a first connecting rod, a second connecting rod and a seat body; the middle part of the first supporting rod is pivoted with the rear end of the seat body through a first pivoting shaft, and a backrest rod is formed at the upper end of the first supporting rod; the upper end of the second supporting rod is pivoted with the front end of the seat body through a second pivoting shaft, and the lower end of the second supporting rod is provided with a front wheel; the front end of the underframe is pivoted with the middle of the second supporting rod through a third pivoting shaft, and the rear end of the underframe is provided with a rear wheel; one end of the first connecting rod is pivoted with the lower end of the first supporting rod through a fourth pivoting shaft, and the other end of the first connecting rod is pivoted with the underframe through a fifth pivoting shaft; one end of the second connecting rod is pivoted with the first supporting rod through a sixth pivoting shaft; and the other end of the second connecting rod is pivoted with the bottom frame through a seventh pivoting shaft. The folding scooter has the advantages of being simple in structure and convenient to use.

Description

Technical Field

[0001] This invention relates to a mobility scooter, and more particularly to a folding mobility scooter. Background Technology

[0002] Wheelchairs are generally quite large, and they are usually folded to reduce their size for easier storage. However, existing folding wheelchairs have complex folding frame designs, involve multiple folding movements, are cumbersome to operate, and are not very convenient to use. Summary of the Invention

[0003] The purpose of this invention is to provide a simple and easy-to-use folding mobility scooter.

[0004] To achieve the above objectives, the present invention provides a folding mobility scooter comprising a folding frame, the folding frame including a base frame, a first support rod, a second support rod, a first connecting rod, a second connecting rod, and a seat; the middle portion of the first support rod is pivotally connected to the rear end of the seat via a first pivot shaft, and the upper end of the first support rod forms a backrest; the upper end of the second support rod is pivotally connected to the front end of the seat via a second pivot shaft, and the lower end of the second support rod is provided with a front wheel; the front end of the base frame is pivotally connected to the middle portion of the second support rod via a third pivot shaft, and the rear end of the base frame is provided with a rear wheel; one end of the first connecting rod is pivotally connected to the lower end of the first support rod via a fourth pivot shaft, and the other end of the first connecting rod is pivotally connected to the base frame via a fifth pivot shaft; one end of the second connecting rod is pivotally connected to the first support rod via a sixth pivot shaft, the sixth pivot shaft being located between the first pivot shaft and the fourth pivot shaft; the other end of the second connecting rod is pivotally connected to the base frame via a seventh pivot shaft, the seventh pivot shaft being located between the third pivot shaft and the fifth pivot shaft. Compared with the prior art, the present invention sets up a base frame, a first support rod, a second support rod, a first connecting rod, and a second connecting rod, so that the seat, the first support rod, the second support rod, the base frame, and the second connecting rod form a polygonal structure, and the first support rod, the first connecting rod, the second connecting rod, and the base frame form another polygonal structure. The two polygonal structures are interconnected and linked to form a foldable frame structure, so that the foldable mobility scooter can be unfolded into a working state or folded into a folded state. The connection structure is simple, and only one rod needs to be driven to operate the unfolding or folding of the frame, which is very convenient to use.

[0005] Preferably, the folding mobility scooter further includes an auxiliary wheel mechanism located at the rear end of the folding frame to unfold and support the folding frame when it is folded up.

[0006] Preferably, the folding mobility scooter further includes a locking mechanism disposed between the seat and either the first support rod or the second support rod, for locking or unlocking the folding frame. Since the folding frame is constructed of two polygons, locking it using the locking mechanism makes the folding frame more stable and secure when unfolded, and its use safer and more reliable.

[0007] Specifically, the locking mechanism includes a fastening element and a locking element. The fastening element is disposed on the base body, and the locking element is disposed on the second support rod. The fastening element and the locking element can be fastened or disengaged from each other. By using the fastening element and the locking element to fasten each other, the base body and the second support rod can be locked together, thereby keeping the folding frame in an unfolded and locked state, thus ensuring the stability and safety of the scooter.

[0008] Specifically, the locking mechanism further includes a fixing member and an elastic member. The fixing member is fixed to the lower front end of the base body. The fastening member is pivotally connected to the fixing member and has a hook. The locking member is fixed to the second support rod and has a locking shaft. The elastic member connects the fastening member and the fixing member to provide an elastic force that engages the hook with the locking shaft. By pivotally connecting the fastening member to the fixing member and using the elastic member to provide an elastic force for the fastening member, the fastening member can automatically engage with the locking shaft of the locking member when they cooperate, achieving automatic locking. When releasing the lock, simply rotate the fastening member to disengage the hook from the locking shaft; releasing the lock is very simple and therefore very convenient to operate.

[0009] Specifically, the fastener has an extension that closes the opening of the hook when the hook is engaged with the locking shaft. This prevents the hook from accidentally disengaging from the locking shaft, further improving the stability and safety of the mobility scooter.

[0010] Preferably, the folding mobility scooter further includes a handrail support, which includes an upper support and a lower support. The lower end of the lower support is pivotally connected to the seat body, the upper end of the lower support is pivotally connected to one end of the upper support, and the other end of the upper support is pivotally connected to the backrest formed by the first support rod.

[0011] Preferably, the folding mobility scooter also includes a drive motor, which is located on the rear wheel.

[0012] Specifically, the folding mobility scooter also includes a power supply and a controller. A backpack is provided on the rear side of the folding mobility scooter, and the power supply and the controller are located inside the backpack. The power supply and the drive motor are electrically connected to the controller. By providing a backpack on the rear side of the backrest and housing the power supply and controller inside the backpack, it is convenient for users to install and maintain the scooter. Attached Figure Description

[0013] Figure 1 This is a top-view perspective view of the folding mobility scooter of the present invention.

[0014] Figure 2 This is a bottom-view perspective view of the folding mobility scooter of the present invention.

[0015] Figure 3 This is a side view of the folding mobility scooter of the present invention.

[0016] Figure 4 yes Figure 2 Enlarged view of section A.

[0017] Figure 5 This is an exploded view of the locking mechanism of the folding mobility scooter of the present invention.

[0018] Figure 6 This is a diagram showing the motion state of each component when the folding mobility scooter of this invention is folded up.

[0019] Figure 7 This is a diagram showing the folding mobility scooter of the present invention after it has been fully folded.

[0020] Figure 8 This is a side view of the folding mobility scooter of the present invention after it has been fully folded. Detailed Implementation

[0021] To illustrate the technical content, structural features, objectives, and effects of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] Please see Figures 1 to 3The folding mobility scooter 100 of the present invention includes a folding frame 1, which includes a base frame 11, a first support rod 12, a second support rod 13, a first connecting rod 14, a second connecting rod 15, and a seat 16. The base frame 11, the first support rod 12, the second support rod 13, the first connecting rod 14, and the second connecting rod 15 are symmetrically arranged on both sides of the base frame 11. The structures of the left and right sides of the folding frame 1 are the same; the following description focuses on the structure of one side. The middle part of the first support rod 12 is pivotally connected to the rear end of the seat 16 via a first pivot shaft 1a, and the upper end of the first support rod 12 extends upward to form a backrest rod 121. A backrest 17 is provided between the two backrest rods 121 in this design. The upper end of the second support rod 13 is pivotally connected to the front end of the seat 16 via a second pivot shaft 1b, and a front wheel 2 is provided at the lower end of the second support rod 13. The front end of the base frame 11 is pivotally connected to the middle of the second support rod 13 via a third pivot shaft 1c, and a rear wheel 3 is provided at the rear end of the base frame 11. One end of the first connecting rod 14 is pivotally connected to the lower end of the first support rod 12 via a fourth pivot shaft 1d, and the other end of the first connecting rod 14 is pivotally connected to the base frame 11 via a fifth pivot shaft 1e. One end of the second connecting rod 15 is pivotally connected to the first support rod 12 via a sixth pivot shaft 1f, which is located between the first pivot shaft 1a and the fourth pivot shaft 1d. The other end of the second connecting rod 15 is pivotally connected to the base frame 11 via a seventh pivot shaft 1g, which is located between the third pivot shaft 1c and the fifth pivot shaft 1e. Please see again Figure 2 and Figure 3The folding mobility scooter 100 also includes an auxiliary wheel mechanism 4, which is located at the rear end of the folding frame 1 to unfold when the folding frame 1 is folded and allow the folding frame 1 to stand upright. Specifically, the auxiliary wheel mechanism 4 includes a linkage 41, a mounting bracket 42, and two auxiliary wheels 43. One end of the linkage 41 is pivotally connected to the first support rod 12, and the pivot shaft is coaxial with the fourth pivot shaft 1d. The other end of the linkage 41 is pivotally connected to one end of the mounting bracket 42 via an eighth pivot shaft 1h; the mounting bracket 42 is a long rod. The middle part of the mounting bracket 42 is pivotally connected to the rear end of the base frame 11 via a ninth pivot shaft 1k. The two auxiliary wheels 43 are respectively located at both ends of the mounting bracket 42. When the folding frame 1 is folded, the linkage 41 drives the mounting bracket 42 to open relative to the folding frame 1, so that the mounting bracket 42 is located at the bottom of the entire vehicle. The horizontal height of the support surface of the auxiliary wheel 43 in contact with the ground is lower than the support surface formed by the two rear wheels 3. Therefore, when the folding frame 1 is folded up, both the front wheel 2 and the rear wheel 3 are off the ground, while the four auxiliary wheels 43 on the two mounting brackets 42 on both sides of the seat 16 support the weight of the entire vehicle. By pivoting the middle of the mounting bracket 42 to the rear end of the base frame 11, and connecting the two ends of the linkage 41 to the mounting bracket 42 and the first support rod 12 respectively, the folding frame 1 and the mounting bracket 42 are linked by the linkage 41, so that the auxiliary wheel mechanism 4 can unfold as the folding frame 1 is folded up, or fold up as the folding frame 1 is unfolded. Therefore, when the folding frame 1 is unfolded, the auxiliary wheel mechanism 4 can automatically fold up without affecting the driving of the vehicle. When the folding frame 1 is folded up, the auxiliary wheel mechanism 4 automatically unfolds and positions itself at the bottom of the folding frame 1. This allows both auxiliary wheels 43 on one side of the scooter to touch the ground simultaneously. With both auxiliary wheel mechanisms 4 working together on both sides of the scooter, they can support the entire frame, enabling it to stand stably upright and effectively improving the convenience of transportation and storage. Moreover, the folding scooter can be pushed upright or dragged at an angle like a suitcase when traveling, making it even more convenient to use.

[0023] Please see Figure 2 , Figure 4 and Figure 5The folding mobility scooter 100 also includes a locking mechanism 5, which is disposed between the seat 16 and any one of the first support rod 12 and the second support rod 13 to lock or unlock the folding frame 1. The locking mechanisms 5 are respectively disposed on the left and right sides of the seat 16 to lock or unlock the folding frame 1 on both sides respectively. Since the folding frame 1 is composed of two polygons, locking it using the locking mechanism 5 makes the folding frame 1 more stable and secure when unfolded, and safer and more reliable to use. Specifically, the locking mechanism 5 includes a fastening member 51, a locking member 52, a fixing member 53, and an elastic member 54. The fixing member 53 is fixed to the lower front end of the seat 16, the fastening member 51 is pivotally connected to the fixing member 53, and the locking member 52 is disposed on the second support rod 13. The fastening member 51 and the locking member 52 can be fastened or disengaged from each other. The fastening member 51 has a hook 511, the locking member 52 is fixed to the second support rod 13, and the locking member 52 has a locking shaft 521. The elastic member 54 is connected between the fastening member 51 and the fixing member 53 to provide an elastic force for the hook 511 to engage with the locking shaft 521. The elastic member 54 is a tension spring. By using the fastening member 51 and the locking member 52 to engage with each other, the seat 16 and the second support rod 13 can be locked together, thereby keeping the folding frame 1 in an unfolded and locked state, thus ensuring the stability and safety of the mobility scooter. In addition, by pivotally connecting the fastening member 51 to the fixing member 53 and using the elastic member 54 to provide an elastic force to the fastening member 51, the fastening member 51 can automatically engage with the locking shaft 521 of the locking member 52 when they are engaged, achieving the purpose of automatic locking. When releasing the lock, simply rotate the fastener 51 to disengage the hook 511 from the locking shaft 521. Releasing the lock is very simple and therefore very convenient to operate.

[0024] Please see again Figure 4 and Figure 5 The fixing member 53 is provided with an extension 531. One side of the extension 531 closes the opening of the hook 511 when the hook 511 is engaged with the locking shaft 521. This prevents the hook 511 from accidentally disengaging from the locking shaft 521, further improving the stability and safety of the mobility scooter. In addition, the fastening member 51 also extends a limiting shaft 512. When the fastening member 51 rotates to its position and the hook 511 disengages from the locking shaft 521, the limiting shaft 512 abuts against the other side of the extension 531, thereby preventing the fastening member 51 from rotating excessively.

[0025] Please see again Figure 1 , Figure 2 and Figure 4 In addition, an operating lever 6 is fixedly connected between the fastening parts 51 of the locking mechanism 5 located on the left and right sides. Through the operating lever 6, the user can simultaneously drive the fastening parts 51 to rotate and release the lock.

[0026] Please see again Figure 3 The folding mobility scooter 100 also includes a handrail support 7, which comprises an upper support 71 and a lower support 72. The lower end of the lower support 72 is pivotally connected to the seat 16, and the upper end of the lower support 72 is pivotally connected to one end of the upper support 71. The other end of the upper support 71 is pivotally connected to the backrest 121 formed by the first support rod 12. This allows the handrail support 7 to fold along with the folding frame 1, making it more convenient and quick to use.

[0027] Please also see 2 and Figure 3 The folding mobility scooter 100 also includes a drive motor 8, which is located on the rear wheel 3 and drives the rear wheel 3 to rotate. Specifically, the folding mobility scooter 100 also includes a power supply 9 and a controller 10. A backpack 110 is provided on the rear side of the backrest 17 of the folding mobility scooter 100. The power supply 9 and the controller 10 are located inside the backpack 110. An electrical contact point (not shown in the figure) is provided inside the backpack 110. The electrical contact point is electrically connected to the drive motor 8. When the power supply 9 and the controller 10 are placed in the backpack 110, the electrical contacts of the power supply 9 and the controller 10 make contact with the electrical contact point and conduct electricity. The power supply 9 and the drive motor 8 are respectively electrically connected to the controller 10. By setting the backpack 110 on the rear side of the backrest 121 and placing the power supply 9 and the controller 10 inside the backpack 110, it is convenient for users to install and maintain the scooter.

[0028] In summary and in combination Figure 3 , Figures 6 to 8 The folding principle of the folding mobility scooter 100 of the present invention will be described in detail below: When the folding mobility scooter 100 needs to be folded, manually grasp and rotate the operating lever 6. The operating lever 6 causes the fastener 51 to rotate against the elastic force of the elastic member 54. At this time, the hook 511 disengages from the locking shaft 521, releasing the folding frame 1. Then, continue to lift the operating lever 61, thereby lifting the front end of the seat 16. At this time, the second support rod 13 folds relative to the seat 16 under the action of gravity. The second support rod 13 drives the base frame 11, and the base frame 11 pushes the first support rod 12 through the second connecting rod 15. The upper end of the first support rod 12 swings forward and approaches the seat 16, while the lower end of the first support rod 12 swings backward. The lower end of the first support rod 12 drives the first connecting rod 14 and the linkage member 41, and the linkage member 41 pushes the upper end of the mounting bracket 42 to flip backward. At the same time, the lower end of the mounting bracket 42 swings forward around the ninth pivot shaft 1k. When the folding frame 1 is fully folded and closed, the mounting bracket 42 is positioned laterally at the lower end of the folding frame 1, with its horizontal height lower than the bottom surface of the rear wheel 3. This allows the two auxiliary wheels 43 and the mounting bracket 42 to support the entire vehicle, ensuring that the folding vehicle 100 can stand upright even when folded and will not tip over. When the folding vehicle 100 needs to be unfolded, the aforementioned rods swing in the opposite direction. Finally, the hook 511 of the fastening member 51 engages with the locking shaft 521 of the locking member 52 to lock the folding frame 1.

[0029] Compared with the prior art, the present invention, by setting up a base frame 11, a first support rod 12, a second support rod 13, a first connecting rod 14, and a second connecting rod 15, forms a polygonal structure between the seat 16, the first support rod 12, the second support rod 13, the base frame 11, and the second connecting rod 15, and also forms another polygonal structure between the first support rod 12, the first connecting rod 14, the second connecting rod 15, and the base frame 11. The two polygonal structures are interconnected and linked, thereby forming a foldable vehicle frame structure, so that the foldable mobility scooter 100 can be unfolded into a usable state or folded into a folded state. The connection structure is simple, and only one rod needs to be driven to operate the unfolding or folding of the frame, making it very convenient to use.

[0030] The above-disclosed embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the scope of the present invention are still within the scope of the present invention.

Claims

1. A folding mobility scooter, characterized in that: The bicycle includes a folding frame, comprising a base frame, a first support rod, a second support rod, a first connecting rod, a second connecting rod, and a seat. The middle portion of the first support rod is pivotally connected to the rear end of the seat via a first pivot shaft, and the upper end of the first support rod forms a backrest. The upper end of the second support rod is pivotally connected to the front end of the seat via a second pivot shaft, and the lower end of the second support rod is fitted with a front wheel. The front end of the base frame is pivotally connected to the middle portion of the second support rod via a third pivot shaft, and the rear end of the base frame is fitted with a rear wheel. One end of the first connecting rod is pivotally connected to the lower end of the first support rod via a fourth pivot shaft, and the other end of the first connecting rod is pivotally connected to the base frame via a fifth pivot shaft. One end of the second connecting rod is pivotally connected to the first support rod via a sixth pivot shaft, the sixth pivot shaft being located between the first and fourth pivot shafts. The other end of the second connecting rod is pivotally connected to the base frame via a seventh pivot shaft, the seventh pivot shaft being located between the third and fifth pivot shafts.

2. The folding mobility scooter according to claim 1, characterized in that: The folding mobility scooter also includes an auxiliary wheel mechanism, which is located at the rear end of the folding frame to unfold and support the folding frame when it is folded up.

3. The folding mobility scooter according to claim 1, characterized in that: The folding mobility scooter also includes a locking mechanism, which is disposed between the seat and either the first support rod or the second support rod, to lock or unlock the folding frame.

4. The folding mobility scooter according to claim 3, characterized in that: The locking mechanism includes a fastening element and a locking element. The fastening element is disposed on the base body, and the locking element is disposed on the second support rod. The fastening element and the locking element can be fastened or separated from each other.

5. The folding mobility scooter according to claim 4, characterized in that: The locking mechanism further includes a fixing member and an elastic member. The fixing member is fixed to the lower front end of the base body. The fastening member is pivotally connected to the fixing member and has a hook. The locking member is fixed to the second support rod and has a locking shaft. The elastic member is connected between the fastening member and the fixing member to provide an elastic force that engages the hook with the locking shaft.

6. The folding mobility scooter according to claim 5, characterized in that: The fastener has an extension that closes the opening of the hook when the hook is engaged with the locking shaft.

7. The folding mobility scooter according to claim 1, characterized in that: The folding mobility scooter also includes a handrail support, which includes an upper support and a lower support. The lower end of the lower support is pivotally connected to the seat body, the upper end of the lower support is pivotally connected to one end of the upper support, and the other end of the upper support is pivotally connected to the backrest formed by the first support rod.

8. The folding mobility scooter according to claim 1, characterized in that: The folding mobility scooter also includes a drive motor, which is located on the rear wheel.

9. The folding mobility scooter according to claim 8, characterized in that: The folding mobility scooter also includes a power supply and a controller. A backpack is provided on the back of the folding mobility scooter, and the power supply and the controller are located inside the backpack. The power supply and the drive motor are electrically connected to the controller.

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