Fully automatic folding mobility scooter

The fully automatic folding mobility scooter uses a telescopic motor to drive the folding mechanism, which solves the problem of damage caused by the rigid connection between the locking hook and the drive structure, thus improving service life and reducing manufacturing costs.

WO2025260318A1PCT designated stage Publication Date: 2025-12-26DONGGUAN SMARFODY MOBILITY TECHNOLOGY CO LTD
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Patent Information

Application Number
PCT/CN2024/100360
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-18
Filing Date
2024-06-20
Publication Date
2025-12-26

AI Technical Summary

Technical Problem

The existing mobility scooters have a rigid connection between the locking hook and the drive structure, which makes them prone to damage when unfolded or folded, increasing manufacturing costs and making the frame structure bulky.

Method used

The vehicle body folding mechanism includes a front frame assembly, a rear frame assembly, a linkage assembly, a support frame assembly, and a locking hook assembly. Driven by a telescopic motor, it achieves fully automatic folding and unfolding, avoiding rigid connection between the locking hook and surrounding components. A single telescopic motor is sufficient to complete the folding and unfolding of the vehicle body.

Benefits of technology

It reduces vibration and wear, increases service life, lowers manufacturing costs, avoids the bulkiness of folding structures, and enables fully automatic locking hook operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN2024100360_26122025_PF_FP_ABST
    Figure CN2024100360_26122025_PF_FP_ABST
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Abstract

Provided is a fully automatic folding mobility scooter, comprising a scooter body folding mechanism (1), a scooter head mechanism (2), a driving wheel mechanism (3) and a seat mechanism (4), wherein the scooter body folding mechanism (1) comprises a front frame assembly (11), a rear frame assembly (12), a linkage assembly (13), a support frame assembly (14), an unfolding lock hook assembly (15) and a folding lock hook assembly (16), the linkage assembly (13) comprising a telescopic electric motor (131), a driving cross rod (132), driving arms (133), first linkage arms (134) and second linkage arms (135). The fully automatic folding mobility scooter has the advantages that in both an unfolded state and a folded state of the mobility scooter, a first locking plate (151) can have a certain movement clearance, so as to prevent rigid connections with peripheral components, thereby reducing vibration wear and prolonging the service life; moreover, folding and unfolding of the scooter body can be completed by means of configuring only one telescopic electric motor (131), and automatic locking and unlocking can also be performed, thereby reducing manufacturing costs, and also preventing the folding structure from being too large.
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Description

A fully automatic folding mobility scooter Technical Field

[0001] This invention relates to the field of folding structures for personal mobility vehicles, and particularly to a fully automatic folding personal mobility vehicle. Background Technology

[0002] A personal mobility scooter, also known as a "lazy person's scooter," refers to a means of transportation and auxiliary tools designed for commuting. Currently, to facilitate storage in cars for outdoor use, personal mobility scooters are generally designed to fold. When stored, the scooter is folded to reduce its space occupation, making it easy to store in the trunk. Folding personal mobility scooters use locking hooks to secure the front and rear frames in both the unfolded and folded states. However, currently, the locking hooks are rigidly connected to the drive structure. Since the drive structure simultaneously drives both the folding and locking hook structures, vibrations in both the unfolded and folded states can easily damage the connection between the locking hooks and the drive structure, causing the locking hooks to malfunction. Some designs use two separate drive structures to drive the folding and locking hook structures, but this obviously increases the manufacturing cost of the frame and makes the frame structure bulky. Therefore, it is necessary to develop a fully automatic folding personal mobility scooter to solve the above problems.

[0003] Summary of the Invention

[0004] The purpose of this invention is to provide a fully automatic folding mobility scooter to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fully automatic folding mobility scooter includes a folding mechanism, a front mechanism, a drive wheel mechanism, and a seat mechanism. The folding mechanism comprises a front frame assembly, a rear frame assembly, a linkage assembly, a support frame assembly, an unfolding locking hook assembly, and a folding locking hook assembly. The front frame assembly has front folding rods on both sides, and the rear frame assembly has rear folding rods on both sides corresponding to the lower parts of the front folding rods. The front ends of the rear folding rods are hinged to the middle of the front folding rods. The linkage assembly includes a telescopic motor, a drive crossbar, a drive arm, a first linkage arm, and a second linkage arm. The power extension end of the telescopic motor faces forward, and the rear end of the telescopic motor is hinged to the rear frame assembly. The front end of the retractable motor is hinged to the first hinge position in the middle of the drive crossbar. The drive arm is fixed to the end of the drive crossbar. The lower front side of the drive arm is hinged to the second hinge position at the front end of the rear folding rod. The first hinge position is higher than the second hinge position. A strip-shaped hole is provided on the upper rear side of the drive arm. A third hinge position is provided on the front side of the second linkage arm. A fourth and fifth hinge positions are provided in the middle of the second linkage arm. A sixth hinge position is provided on the upper rear side of the second linkage arm. A first hook is provided on the lower rear side of the second linkage arm. The third hinge position is hinged to the rear end of the front folding rod. The front end of the first linkage arm is hinged to the inner side of the fourth hinge position. A sliding limit post protruding inward is provided at the rear end of the first linkage arm. The sliding limit post corresponds to the slotted hole. Two sets of drive arms, first linkage arms, and second linkage arms are each provided, corresponding to the left and right sides of the drive crossbar. The support assembly includes a front support rod, a rear support rod, and a third linkage arm. The front support rod corresponds to the front side of the rear support rod. The lower ends of both the front and rear support rods are hinged to the rear frame assembly. The lower front end of the third linkage arm is hinged to the outer side of the fifth hinge position, and the upper rear end of the third linkage arm is hinged to the front support rod. The unfolding locking hook assembly includes a first locking plate, a first top post, a first limit post, a first latching post, and a first spring. The front end of the first locking plate is hinged to the inner side of the sixth hinge position, and the first top post is fixed to the lower side of the first locking plate. The first top post corresponds to the upper rear end of the first linkage arm. The first limiting post is fixed inside the second linkage arm and corresponds to the sixth hinge position and the first hook. The lower rear end of the first locking plate is provided with a first fastening groove. The first fastening post is fixed on the front support rod. The first fastening groove is fastened to the first fastening post. One end of the first spring is fixed in the middle of the first locking plate. The other end of the first spring is fixed on the first hook. The folding lock hook assembly is installed on the front folding rod and the rear folding rod to maintain the folded state of the vehicle body. The front mechanism is installed at the front end of the front frame assembly. The drive wheel mechanism is installed at the rear end of the rear frame assembly. The seat mechanism is installed at the upper end of the support frame assembly.

[0007] Further description of the present invention: The folding lock hook assembly includes a second locking plate, a top plate, a second limiting post, a second fastening post, and a second spring. The upper end of the second locking plate is hinged to the inner side of the front folding rod. A second hook portion is provided on the front side of the middle portion of the second locking plate. A second fastening groove is provided on the front side of the lower end of the second locking plate. The second limiting post is fixed on the front folding rod and corresponds to the upper part of the second hook portion. The upper end of the second spring is fixed on the front folding rod, and the lower end is fixed on the second hook portion. The second fastening post is fixed on the inner side of the rear folding rod. In the folded state, the second fastening groove and the second fastening post are fastened together. The top plate is fixed on the inner side of the second locking plate. An unlocking rod is provided at the front end of the drive arm. In the folded state, the unlocking rod corresponds to the top plate.

[0008] Further description of the invention: Two sets of unfolding locking hook assemblies are provided, respectively corresponding to the left and right sides of the drive crossbar.

[0009] Further description of the invention: The front frame assembly includes a front articulation plate, a front articulation arm, and a front folding rod. The front articulation plate is fixed to the front end mechanism. The front end of the front articulation arm is hinged to the lower end of the front articulation plate. The front end of the front folding rod is hinged to the upper end of the front articulation plate. The rear end of the front articulation arm is hinged to the front end of the rear folding rod.

[0010] Further description of the invention: The front mechanism includes a steering base, a front wheel and a control handle. The front hinge plate is fixed on the steering base, the front wheel is rotatably mounted on the steering base, and the lower end of the control handle is fixed on the upper end of the steering base and its position is adjustable in the vertical direction.

[0011] Further description of the invention: The rear frame assembly includes a mounting beam and rear folding rods, with the rear ends of the two sets of rear folding rods respectively fixed to the left and right sides of the mounting beam.

[0012] Further description of the present invention: The drive wheel mechanism includes a connecting plate, a mounting bracket, a rear wheel, a shock absorber, and a rotary drive assembly. The front end of the connecting plate is fixed to the rear end of the rear folding rod. The front end of the mounting bracket is hinged to the rear end of the connecting plate. The upper and lower ends of the shock absorber are respectively hinged to the middle of the rear support rod and the mounting bracket. The rotary drive assembly is fixed on the mounting bracket. The rear wheel is fixed to the power output end of the rotary drive assembly and is driven to rotate by the rotary drive assembly.

[0013] Further description of the present invention: The drive wheel mechanism also includes a first hinge rod, a second hinge rod, and an anti-tipping wheel. The upper end of the first hinge rod is hinged to the rear end of the mounting bracket. The anti-tipping wheel is rotatably mounted on the lower end of the first hinge rod. The second hinge rod corresponds to the lower part of the mounting bracket. The front end of the second hinge rod is hinged to the lower end of the connecting plate. The rear end of the second hinge rod is hinged to the middle part of the first hinge rod. Two sets of the first hinge rod, the second hinge rod, and the anti-tipping wheel are provided and respectively correspond to the left and right sides of the mounting bracket.

[0014] Further description of the invention: The lower end of the front support rod is hinged to the rear folding rod, the lower end of the rear support rod is hinged to the mounting beam, and the two sets of rear support rods are located inside the two sets of front support rods.

[0015] Further description of the present invention: The seat mechanism includes a seat cushion component, a backrest component, and an angle limiting rod. The upper ends of the front support rod and the rear support rod are both hinged to the bottom of the seat cushion component. The lower end of the backrest component is hinged to the rear end of the seat cushion component. The upper end of the angle limiting rod is fixed to the rear side of the seat cushion component, and the front side of the lower end of the angle limiting rod contacts the rear side of the seat cushion component.

[0016] The beneficial effects of this invention are as follows: In both the unfolded and folded states of the mobility scooter, the first locking plate has a certain amount of room for movement, avoiding rigid connection with surrounding components, thereby reducing vibration and wear, and improving service life. Moreover, this design only requires one set of telescopic motors to complete the folding and unfolding of the vehicle body, and can also automatically lock and unlock, reducing manufacturing costs and avoiding the bulkiness of the folding structure. Attached Figure Description

[0017] Figure 1 is an overall structural diagram of the present invention;

[0018] Figure 2 is a structural diagram of the vehicle body folding mechanism of the present invention (right view);

[0019] Figure 3 is a structural diagram of the vehicle body folding mechanism of the present invention (left view);

[0020] Figure 4 is a structural diagram of the linkage assembly, support frame assembly and unfolding locking hook assembly in this invention;

[0021] Figure 5 is a magnified view of a portion of position A in Figure 4;

[0022] Figure 6 is a structural diagram of the folding lock hook assembly in this invention;

[0023] Figure 7 is a structural diagram of the drive wheel mechanism in this invention;

[0024] Figure 8 is a structural diagram of the seat mechanism in this invention;

[0025] Figure 9 is an overall structural diagram of the present invention in its folded state;

[0026] Figure 10 is a structural diagram of the vehicle body folding mechanism and seat mechanism in this invention;

[0027] Figure 11 is a magnified view of a portion of position B in Figure 10;

[0028] Explanation of reference numerals in the attached drawings: 1. Vehicle body folding mechanism; 11. Front frame assembly; 111. Front folding bar; 112. Front hinge plate; 113. 12. Front articulated arm; 12. Rear frame assembly; 121. Rear folding rod; 122. Mounting beam; 13. Linkage assembly; 131. Telescopic motor; 132. Drive crossbar; 133. Drive arm; 1331. Strip hole; 1332. Unlocking rod; 134. First linkage arm; 1341. Sliding limit post; 135. Second linkage arm; 1351. First hook; 14. Support frame assembly; 141. Front support rod; 142. Rear support rod; 143. Third linkage arm; 15. Unfolding lock hook assembly; 151. First locking plate; 1511. First fastening groove; 152. First top post; 153. First limit post; 154. First fastening post; 155. First spring; 16. Folding lock hook assembly; 161. Second lock 1. Plate; 1611, Second hook; 1612, Second fastening groove; 162, Top plate; 163, Second limiting post; 164, Second fastening post; 165, Second spring; 2. Head mechanism; 21, Steering base; 22, Front wheel; 23, Control handle; 3. Drive wheel mechanism; 31, Connecting plate; 32, Mounting bracket; 33, Rear wheel; 34, Shock absorber; 35, Rotary drive assembly; 36, First hinge rod; 37, Second hinge rod; 38, Anti-tipping wheel; 4. Seat mechanism; 41, Seat cushion component; 42, Backrest component; 43, Angle limiting rod; 51, First hinge position; 52, Second hinge position; 53, Third hinge position; 54, Fourth hinge position; 55, Fifth hinge position; 56, Sixth hinge position. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings:

[0030] As shown in Figures 1 to 11, a fully automatic folding mobility scooter includes a body folding mechanism 1, a front mechanism 2, a drive wheel mechanism 3, and a seat mechanism 4. The body folding mechanism 1 includes a front frame assembly 11, a rear frame assembly 12, a linkage assembly 13, a support frame assembly 14, an unfolding locking hook assembly 15, and a folding locking hook assembly 16. The front frame assembly 11 has front folding rods 111 on both its left and right sides, and the rear frame assembly 12 has rear folding rods 121 on both its left and right sides, corresponding to the lower parts of the front folding rods 111. The front ends of the rear folding rods 121 are hinged to the middle of the front folding rods 111. The linkage assembly 13 includes a telescopic motor 131, a drive crossbar 132, and a drive... The system includes a boom 133, a first linked arm 134, and a second linked arm 135. The power extension end of the telescopic motor 131 faces forward. The rear end of the telescopic motor 131 is hinged to the rear frame assembly 12. The front end of the telescopic motor 131 is hinged to the first hinge position 51 in the middle of the drive crossbar 132. The drive arm 133 is fixed to the end of the drive crossbar 132. The lower front side of the drive arm 133 is hinged to the second hinge position 52 at the front end of the rear folding rod 121. The first hinge position 51 is higher than the second hinge position 52. A strip-shaped hole 1331 is provided on the upper rear side of the drive arm 133. A third hinge position 53 is provided on the front side of the second linked arm 135. A fourth hinge position 53 is provided in the middle of the second linked arm 135. The system includes hinge positions 54 and 55, a sixth hinge position 56 located above the rear side of the second linkage arm 135, a first hook portion 1351 located below the rear side of the second linkage arm 135, a third hinge position 53 hinged to the rear end of the front folding rod 111, a front end of the first linkage arm 134 hinged to the inner side of the fourth hinge position 54, and a sliding limiting post 1341 protruding inwardly located at the rear end of the first linkage arm 134, corresponding to the slotted hole 1331. Two sets of drive arms 133, first linkage arms 134, and second linkage arms 135 are each provided, corresponding to the left and right sides of the drive crossbar 132. The support assembly includes a front support rod 141 and a rear support rod 142. The rod 142 and the third linkage arm 143, the front support rod 141 corresponds to the front side of the rear support rod 142, the lower ends of the front support rod 141 and the rear support rod 142 are both hinged to the rear frame assembly 12, the lower front end of the third linkage arm 143 is hinged to the outer side of the fifth hinge position 55, and the upper rear end of the third linkage arm 143 is hinged to the front support rod 141. The unfolding locking hook assembly 15 includes a first locking plate 151, a first top post 152, a first limiting post 153, a first fastening post 154 and a first spring 155, the front end of the first locking plate 151 is hinged to the inner side of the sixth hinge position 56, the first top post 152 is fixed to the lower side of the first locking plate 151, the first top post 152 Corresponding to the upper rear end of the first linkage arm 134, the first limiting post 153 is fixed inside the second linkage arm 135 and corresponds to the sixth hinge position 56 and the first hook 1351. The lower rear end of the first locking plate 151 is provided with a first fastening groove 1511, and the first fastening post 154 is fixed on the front support rod 141. The first fastening groove 1511 and the first fastening post 154 are fastened together.One end of the first spring 155 is fixed to the middle of the first locking plate 151, and the other end of the first spring 155 is fixed to the first hook 1351. The folding hook assembly 16 is installed on the front folding rod 111 and the rear folding rod 121 to maintain the folded state of the vehicle body. The front mechanism 2 is installed at the front end of the front frame assembly 11, the drive wheel mechanism 3 is installed at the rear end of the rear frame assembly 12, and the seat mechanism 4 is installed at the upper end of the support frame assembly 14.

[0031] When the mobility scooter is unfolded, the first locking plate 151, under the tension of the first spring 155, engages the first fastening slot 1511 downwards to fasten the first fastening post 154. During the scooter's operation, this maintains the fixed connection between the front folding rod 111 and the rear folding rod 121. Although some vibration occurs during operation, the first spring 155 can be stretched a certain distance, allowing the first locking plate 151 a certain displacement margin. That is, during operation, the first locking plate 151 is not rigidly connected to the front frame assembly 11 and the rear frame assembly 12, reducing wear and extending its service life. When the mobility scooter needs to be folded, the power output end of the telescopic motor 131 extends. Since the first hinge position 51 is higher than the second hinge position 52, the telescopic motor 131 drives the crossbar... 132 causes the drive arm 133 to rotate counterclockwise around the second hinge position 52. The strip hole 1331 on the drive arm 133 moves upward relative to the sliding limit post 1341, so that the upper end of the drive arm 133 can push the first top post 152 upward, thereby causing the first latching groove 1511 to no longer latch with the first latching post 154, that is, the first locking plate 151 is in the unlocked state. The first locking plate 151 rotates clockwise around the sixth hinge position 56 until it contacts the first limit post 153 and stops. In the unlocked state, the drive arm 133 continues to rotate counterclockwise, and the sliding limit post 1341 contacts the lower end of the strip hole 1331, thereby driving the first linkage arm 134 to rotate clockwise around the fourth hinge position 54, and the second linkage arm 135 to rotate counterclockwise around the third hinge position 53. The third linkage arm 143 rotates clockwise around the fifth hinge position 55, thereby driving the front folding rod 111 to rotate counterclockwise around the front end of the rear folding rod 121, thus folding the front frame assembly 11 and the rear frame assembly 12. The front support rod 141 and the rear support rod 142 automatically rotate counterclockwise around the rear folding rod 121 and fold, thus completing the automatic folding of the mobility scooter. The unfolding process is the reverse. In both the unfolded and folded states of the mobility scooter, the first locking plate 151 has a certain amount of room for movement, avoiding rigid connection with surrounding components, thereby reducing vibration and wear, and improving service life. Moreover, this design only requires one set of telescopic motors 131 to complete the folding and unfolding of the vehicle body, and can also automatically lock and unlock, reducing manufacturing costs and avoiding the bulkiness of the folding structure.

[0032] The folding lock hook assembly 16 includes a second locking plate 161, a top plate 162, a second limiting post 163, a second fastening post 164, and a second spring 165. The upper end of the second locking plate 161 is hinged to the inner side of the front folding rod 111. A second hook portion 1611 is provided on the front side of the middle portion of the second locking plate 161, and a second fastening groove 1612 is provided on the front side of the lower end of the second locking plate 161. The second limiting post 163 is fixed on the front folding rod 111 and corresponds to the second hook portion 1611. Above 11, the upper end of the second spring 165 is fixed to the front folding rod 111, and the lower end is fixed to the second hook 1611. The second fastening post 164 is fixed to the inner side of the rear folding rod 121. In the folded state, the second fastening groove 1612 is fastened to the second fastening post 164. The top plate 162 is fixed to the inner side of the second locking plate 161. The front end of the drive arm 133 is provided with an unlocking rod 1332. In the folded state, the unlocking rod 1332 corresponds to the top plate 162.

[0033] When the vehicle is unfolded, the second locking plate 161, under the tension of the second spring 165, contacts the second limiting post 163. During folding, the front folding rod 111 and the rear folding rod 121 fold, causing the second fastening post 164 to move closer to the second locking plate 161. Finally, the second fastening post 164 contacts the inclined surface at the end of the second locking plate 161, causing the second locking plate 161 to push outwards from the second fastening post 164 and then inwards through the second fastening groove 1612 to fasten the second fastening post 164, thereby maintaining the locked state in the folded state. When unfolded, the power output end of the telescopic motor 131 retracts. Similarly, under the action of the strip hole 1331 and the sliding limit post 1341, the drive arm 133 is allowed to rotate a certain angle first. At this time, the unlocking rod 1332 touches the top plate 162, thereby causing the second locking plate 161 to rotate and unlock. Then the vehicle unfolds. Similarly, in both the unfolded and folded states of the vehicle, the second locking plate 161 can have a certain amount of room for movement to avoid rigid connection with surrounding components, thereby reducing vibration and wear and improving service life.

[0034] The unfolding locking hook assembly 15 is provided in two sets, respectively corresponding to the left and right sides of the drive crossbar 132, which can ensure the stability of the vehicle body in the unfolded state and improve safety.

[0035] The front frame assembly 11 includes a front articulation plate 112, a front articulation arm 113, and a front folding rod 111. The front articulation plate 112 is fixed on the front end mechanism 2. The front end of the front articulation arm 113 is hinged to the lower end of the front articulation plate 112, the front end of the front folding rod 111 is hinged to the upper end of the front articulation plate 112, and the rear end of the front articulation arm 113 is hinged to the front end of the rear folding rod 121.

[0036] The front hinge plate 112, the front hinge arm 113, the front folding rod 111 and the rear folding rod 121 form a parallelogram-like structure, which enables the front frame assembly 11 to fold while ensuring sufficient structural strength.

[0037] The vehicle head mechanism 2 includes a steering base 21, a front wheel 22, and a control handle 23. The front hinge plate 112 is fixed on the steering base 21, the front wheel 22 is rotatably mounted on the steering base 21, and the lower end of the control handle 23 is fixed on the upper end of the steering base 21 and its position is adjustable in the vertical direction.

[0038] The rear frame assembly 12 includes a mounting beam 122 and rear folding rods 121, with the rear ends of the two sets of rear folding rods 121 fixed to the left and right sides of the mounting beam 122 respectively.

[0039] The drive wheel mechanism 3 includes a connecting plate 31, a mounting bracket 32, a rear wheel 33, a shock absorber 34, and a rotary drive assembly 35. The front end of the connecting plate 31 is fixed to the rear end of the rear folding rod 121. The front end of the mounting bracket 32 ​​is hinged to the rear end of the connecting plate 31. The upper and lower ends of the shock absorber 34 are respectively hinged to the middle of the rear support rod 142 and the mounting bracket 32. The rotary drive assembly 35 is fixed on the mounting bracket 32. The rear wheel 33 is fixed to the power output end of the rotary drive assembly 35 and is driven to rotate by the rotary drive assembly 35.

[0040] During folding, the rear support rod 142 and the rear folding rod 121 fold, simultaneously driving the connecting plate 31, the mounting bracket 32 ​​and the shock absorber 34 to fold, making the folded structure more compact.

[0041] The drive wheel mechanism 3 further includes a first hinge rod 36, a second hinge rod 37, and an anti-tipping wheel 38. The upper end of the first hinge rod 36 is hinged to the rear end of the mounting bracket 32. The anti-tipping wheel 38 is rotatably mounted on the lower end of the first hinge rod 36. The second hinge rod 37 is located below the mounting bracket 32. The front end of the second hinge rod 37 is hinged to the lower end of the connecting plate 31, and the rear end of the second hinge rod 37 is hinged to the middle of the first hinge rod 36. Two sets of the first hinge rod 36, the second hinge rod 37, and the anti-tipping wheel 38 are provided and are respectively located on the left and right sides of the mounting bracket 32.

[0042] In the unfolded state, the lower end of the first hinge rod 36 faces the rear, so that the anti-tipping wheel 38 is located behind the rear wheel 33. When going uphill, it can prevent the mobility scooter from tipping backward. When folded, the connecting plate 31 drives the front end of the second hinge rod 37 to move forward, so that the lower end of the first hinge rod 36 swings forward, and the anti-tipping wheel 38 also moves forward, so that it does not protrude from the rear wheel 33, thereby further improving the compactness of the structure after folding.

[0043] The lower end of the front support rod 141 is hinged to the rear folding rod 121, and the lower end of the rear support rod 142 is hinged to the mounting beam 122. The two sets of rear support rods 142 are located inside the two sets of front support rods 141.

[0044] In the folded state, the front support rod 141 and the rear support rod 142 are folded in a staggered manner, further making the structure more compact.

[0045] The seat mechanism 4 includes a seat cushion component 41, a backrest component 42, and an angle limiting rod 43. The upper ends of the front support rod 141 and the rear support rod 142 are both hinged to the bottom of the seat cushion component 41. The lower end of the backrest component 42 is hinged to the rear end of the seat cushion component 41. The upper end of the angle limiting rod 43 is fixed to the rear side of the seat cushion component 41, and the front side of the lower end of the angle limiting rod 43 contacts the rear side of the seat cushion component 41.

[0046] After the vehicle body is folded, when the scooter is laid flat, the cushion component 42 automatically adheres to the seat cushion component 41 under the action of gravity. When unfolded, the cushion component 42 can be manually flipped so that the lower end of the angle limiting rod 43 contacts the rear end of the seat cushion component 41, and the position of the cushion component 42 can be fixed.

[0047] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the technical scope of the present invention.

Claims

1. A fully automatic folding mobility scooter, characterized in that: The vehicle includes a body folding mechanism, a front end mechanism, a drive wheel mechanism, and a seat mechanism. The body folding mechanism comprises a front frame assembly, a rear frame assembly, a linkage assembly, a support frame assembly, an unfolding hook assembly, and a folding hook assembly. The front frame assembly has front folding rods on both sides, and the rear frame assembly has rear folding rods on both sides corresponding to the lower parts of the front folding rods. The front ends of the rear folding rods are hinged to the middle of the front folding rods. The linkage assembly includes a telescopic motor, a drive crossbar, a drive arm, a first linkage arm, and a second linkage arm. The power extension end of the telescopic motor faces forward, the rear end of the telescopic motor is hinged to the rear frame assembly, and the front end of the telescopic motor is hinged to the first hinge point in the middle of the drive crossbar. The drive arm is fixed to the end of the drive crossbar. The lower front side of the drive arm is hinged to the second hinge position at the front end of the rear folding rod. The first hinge position is higher than the second hinge position. A strip-shaped hole is provided on the upper rear side of the drive arm. A third hinge position is provided on the front side of the second linkage arm. A fourth and fifth hinge positions are provided in the middle of the second linkage arm. A sixth hinge position is provided above the rear side of the second linkage arm. A first hook is provided below the rear side of the second linkage arm. The third hinge position is hinged to the rear end of the front folding rod. The front end of the first linkage arm is hinged to the inner side of the fourth hinge position. A sliding limiting post protruding inward is provided at the rear end of the first linkage arm. The sliding limiting post corresponds to the strip-shaped hole. The drive arm, The first and second linkage arms are each provided in two sets and correspond to the left and right sides of the drive crossbar. The support assembly includes a front support rod, a rear support rod, and a third linkage arm. The front support rod corresponds to the front side of the rear support rod. The lower ends of both the front and rear support rods are hinged to the rear frame assembly. The lower front end of the third linkage arm is hinged to the outer side of the fifth hinge position, and the upper rear end of the third linkage arm is hinged to the front support rod. The unfolding locking hook assembly includes a first locking plate, a first top post, a first limiting post, a first fastening post, and a first spring. The front end of the first locking plate is hinged to the inner side of the sixth hinge position. The first top post is fixed to the lower side of the first locking plate and corresponds to the first... Above the rear end of the linkage arm, the first limiting post is fixed to the inner side of the second linkage arm and corresponds to the sixth hinge position and the first hook. The lower rear end of the first locking plate is provided with a first fastening groove. The first fastening post is fixed on the front support rod. The first fastening groove is fastened to the first fastening post. One end of the first spring is fixed to the middle of the first locking plate. The other end of the first spring is fixed to the first hook. The folding lock hook assembly is installed on the front folding rod and the rear folding rod to maintain the folded state of the vehicle body. The front mechanism is installed at the front end of the front frame assembly. The drive wheel mechanism is installed at the rear end of the rear frame assembly. The seat mechanism is installed at the upper end of the support frame assembly.

2. The fully automatic folding mobility scooter according to claim 1, characterized in that: The folding lock hook assembly includes a second locking plate, a top plate, a second limiting post, a second fastening post, and a second spring. The upper end of the second locking plate is hinged to the inner side of the front folding rod. A second hook portion is provided on the front side of the middle portion of the second locking plate. A second fastening groove is provided on the front side of the lower end of the second locking plate. The second limiting post is fixed on the front folding rod and corresponds to the area above the second hook portion. The upper end of the second spring is fixed on the front folding rod, and the lower end is fixed on the second hook portion. The second fastening post is fixed to the inner side of the rear folding rod. In the folded state, the second fastening groove is fastened to the second fastening post. The top plate is fixed to the inner side of the second locking plate. An unlocking rod is provided at the front end of the drive arm. In the folded state, the unlocking rod corresponds to the top plate.

3. The fully automatic folding mobility scooter according to claim 1, characterized in that: The unfolding locking hook assembly is provided in two sets, corresponding to the left and right sides of the drive crossbar respectively.

4. The fully automatic folding mobility scooter according to claim 1, characterized in that: The front frame assembly includes a front articulation plate, a front articulation arm, and a front folding rod. The front articulation plate is fixed to the front end mechanism. The front end of the front articulation arm is hinged to the lower end of the front articulation plate. The front end of the front folding rod is hinged to the upper end of the front articulation plate. The rear end of the front articulation arm is hinged to the front end of the rear folding rod.

5. The fully automatic folding mobility scooter according to claim 4, characterized in that: The vehicle front mechanism includes a steering base, a front wheel, and a control handle. The front hinge plate is fixed on the steering base, the front wheel is rotatably mounted on the steering base, and the lower end of the control handle is fixed on the upper end of the steering base and its position is adjustable in the vertical direction.

6. The fully automatic folding mobility scooter according to claim 1, characterized in that: The rear frame assembly includes a mounting beam and the rear folding rods, with the rear ends of the two sets of rear folding rods respectively fixed to the left and right sides of the mounting beam.

7. A fully automatic folding mobility scooter according to claim 6, characterized in that: The drive wheel mechanism includes a connecting plate, a mounting bracket, a rear wheel, a shock absorber, and a rotary drive assembly. The front end of the connecting plate is fixed to the rear end of the rear folding rod. The front end of the mounting bracket is hinged to the rear end of the connecting plate. The upper and lower ends of the shock absorber are respectively hinged to the middle of the rear support rod and the mounting bracket. The rotary drive assembly is fixed on the mounting bracket. The rear wheel is fixed to the power output end of the rotary drive assembly and is driven to rotate by the rotary drive assembly.

8. A fully automatic folding mobility scooter according to claim 7, characterized in that: The drive wheel mechanism further includes a first hinge rod, a second hinge rod, and an anti-tipping wheel. The upper end of the first hinge rod is hinged to the rear end of the mounting bracket. The anti-tipping wheel is rotatably mounted on the lower end of the first hinge rod. The second hinge rod is located below the mounting bracket. The front end of the second hinge rod is hinged to the lower end of the connecting plate. The rear end of the second hinge rod is hinged to the middle of the first hinge rod. Two sets of the first hinge rod, the second hinge rod, and the anti-tipping wheel are provided, respectively corresponding to the left and right sides of the mounting bracket.

9. A fully automatic folding mobility scooter according to claim 6, characterized in that: The lower end of the front support rod is hinged to the rear folding rod, and the lower end of the rear support rod is hinged to the mounting beam. The two sets of rear support rods are located inside the two sets of front support rods.

10. A fully automatic folding mobility scooter according to claim 1, characterized in that: The seat mechanism includes a seat cushion component, a backrest component, and an angle limiting rod. The upper ends of the front support rod and the rear support rod are both hinged to the bottom of the seat cushion component. The lower end of the backrest component is hinged to the rear end of the seat cushion component. The upper end of the angle limiting rod is fixed to the rear side of the seat cushion component, and the front side of the lower end of the angle limiting rod contacts the rear side of the seat cushion component.

Citation Information

Patent Citations

  • Semi-automatic folding scooter

    CN113636003A

  • Folding scooter

    CN116767407A

  • Folding scooter with compact structure

    CN116923618A

  • Folding scooter with compact structure

    CN117382788A

  • Folding type scooter for old people

    CN214029003U