A foldable scooter

Abstract

The application discloses a foldable scooter, which comprises a stand column assembly, a seat assembly, a bottom frame assembly, a front wheel assembly and a rear wheel assembly. The seat assembly comprises a backrest tube and a seat tube, the seat tube is in a U shape, and the end of the branch tube of the seat tube is hinged to the backrest tube. The bottom frame assembly comprises a front frame and a rear frame which are hinged to each other, the front frame is hinged to the stand column assembly, the bottom of the seat tube is provided with a seat inclined tube which is hinged to the front frame, and the bottom end of the backrest tube is hinged to the rear frame. The front wheel assembly is arranged at the bottom of the stand column assembly, and the rear wheel assembly is arranged at the bottom of the rear frame. By exerting a driving force to drive the seat tube to rotate, the seat tube is close to the backrest tube, the front frame and the rear frame are synchronously driven to be relatively folded and placed between the stand column assembly and the backrest tube, and the scooter enters a folding state.

Description

Technical Field

[0001] This application relates to the field of mobility scooter technology, and in particular to a foldable mobility scooter. Background Technology

[0002] Personal mobility scooters, as a short-distance travel tool, are becoming increasingly popular in the market. To facilitate carrying, storage, and transportation, some personal mobility scooters often feature folding capabilities. Currently, foldable electric personal mobility scooters on the market are mainly divided into two categories: manual folding and electric folding. Manual folding solutions rely heavily on the user's physical strength, with too many folding steps, making operation difficult for users with mobility impairments and resulting in a poor user experience. Electric folding typically uses electric push rods, motors, and other drive components to replace manual folding. For example, the lightweight folding personal mobility scooter proposed in announcement number CN222728161U uses a push rod to fold its frame. On the one hand, its mechanical transmission components pose a risk of pinching injury during folding, requiring extra attention to safety; on the other hand, the introduction of motors, push rods, and corresponding control units significantly increases product costs. Therefore, the purpose of this application is to achieve a smooth manual folding process by optimizing the mechanical linkage design while avoiding the complexity and safety hazards of the electric structure.

[0003] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0004] Based on this, this application provides a foldable mobility scooter to solve one of the aforementioned technical problems.

[0005] The technical solution adopted by this application to solve its technical problem is a foldable mobility scooter, including: a column assembly; a seat assembly, including a backrest tube and a seat tube, the seat tube being U-shaped, with the end of its branch tube hinged to the backrest tube; a frame assembly, including a front frame and a rear frame hinged to each other, the front frame being hinged to the column assembly, the bottom of the seat tube being provided with a seat inclined tube for hinged to the front frame, and the bottom end of the backrest tube being hinged to the rear frame; a front wheel assembly located at the bottom of the column assembly; and a rear wheel assembly located at the bottom of the rear frame. By applying a force to drive the seat tube to rotate, causing the seat tube to come close to the backrest tube, the front frame and the rear frame are simultaneously folded relative to each other and placed between the column assembly and the backrest tube, thus putting the mobility scooter into a folded state.

[0006] In some embodiments, a connecting block is fixedly provided on the rear frame, the rear frame is hinged to the front frame through the connecting block, and a front connecting tube is rotatably provided between the connecting block and the column assembly.

[0007] In some embodiments, the front frame has a U-shaped profile, with a support tube between its two branch tubes. A first connecting plate is fixedly mounted on the support tube, and the first connecting plate can be hinged to the lower half of the connecting block.

[0008] In some embodiments, the front frame has a U-shaped profile, with the ends of its two branch tubes bent upwards and hinged to the seat diagonal tube.

[0009] In some embodiments, a limiting block is provided on the inner side of the bend of the front frame, the limiting block being able to abut against the top of the rear frame when the vehicle is unfolded.

[0010] In some embodiments, a second connecting plate is fixedly provided at the end of the seat tube branch, and the seat tube is hinged to the middle region of the backrest tube through the second connecting plate.

[0011] In some embodiments, a seat support plate is fixedly provided between the two branch pipes of the seat tube, and a seat cushion is provided on the seat support plate.

[0012] In some embodiments, the front frame has a U-shaped profile, and third connecting plates are rotatably disposed on both sides near one end of the pillar assembly. The front frame is rotatably disposed on the pillar assembly via the third connecting plates.

[0013] In some embodiments, the rear wheel assembly is provided with an auxiliary wheel that can support the mobility scooter in the folded state.

[0014] The beneficial effects of this application are as follows: by rotating the seat tube, the front frame and the rear frame can be rotated relative to each other through the linkage mechanism formed by the bottom of the seat tube and the seat slant tube, realizing one-button, single-step folding operation. At the same time, the folding process is completely controlled by the user, and the speed is smooth, avoiding the risk of sudden movement or pinching caused by accidental touch or sensor failure during electric folding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the vehicle frame structure in its unfolded state as per this application.

[0017] Figure 2 This is a schematic diagram of the unfolded three-dimensional structure of this application.

[0018] Figure 3This is a schematic diagram of the folded three-dimensional structure of this application.

[0019] The following are the reference numerals: 1. Column assembly; 2. Seat assembly; 21. Backrest tube; 211. Backrest cushion; 212. Backrest armrest; 22. Seat tube; 221. Seat diagonal tube; 222. Second connecting plate; 223. Seat cushion support plate; 224. Seat cushion; 225. Folding handle; 3. Underframe assembly; 31. Front frame; 311. Support tube; 312. First connecting plate; 313. Limiting block; 314. Third connecting plate; 315. Pedal housing; 32. Rear frame; 321. Connecting block; 322. Front connecting tube; 323. Rear frame housing; 324. Horizontal tube; 4. Front wheel assembly; 41. Front wheel anti-collision component; 5. Rear wheel assembly; 51. Auxiliary wheel; 6. Handlebar assembly. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0021] In the embodiments of this application, please refer to Figures 1-3 As shown, this application provides a foldable mobility scooter, mainly comprising: a pillar assembly 1; a seat assembly 2, including a backrest tube 21 and a seat tube 22, wherein the seat tube 22 is U-shaped and the end of its branch tube is hinged to the backrest tube 21; a frame assembly 3, including a front frame 31 and a rear frame 32 hinged to each other, wherein the front frame 31 is hinged to the pillar assembly 1, the bottom of the seat tube 22 is provided with a seat inclined tube 221 to be hinged to the front frame 31, and the bottom end of the seat tube 22 is hinged to the rear frame 32; a front wheel assembly 4, disposed at the bottom of the pillar assembly 1; and a rear wheel assembly 5, disposed at the bottom of the rear frame 32; by applying a force to drive the seat tube 22 to rotate so that the seat tube 22 is close to the backrest tube 21, the front frame 31 and the rear frame 32 are folded relative to each other and placed between the pillar assembly 1 and the backrest tube 21, so that the mobility scooter enters a folded state.

[0022] Specifically, when the scooter needs to be folded, the user holds a folding handle 225 on the seat tube 22 and applies force to the seat tube 22 to rotate it upward. The seat slant tube 221 will drive the front frame 31 to rotate upward along the upright assembly 1. At the same time, the rear frame 32 will also be hinged to the front frame 31, causing the front frame 31 and the rear frame 32 to arch towards the center and fold relative to each other. Meanwhile, the seat tube 22 will fit against the upright backrest tube 21, so that the front frame 31 and the rear frame 32 are folded into a smaller volume and located between the upright assembly 1 and the backrest tube 21, thus completing the folding of the scooter.

[0023] Preferably, the pillar assembly 1 is provided with a handle assembly 6 to control the direction of the front wheel assembly 4. At the same time, the front frame 31 is provided with a pedal shell 315, and the rear frame 32 is provided with a rear frame shell. The backrest tubes 21 are two tubes placed side by side on the two ends of the U-shaped rear frame 32. The two support tubes of the U-shaped rear frame 32 are provided with a cross tube 324 near the rear wheel for support. The backrest cushion 211 and backrest armrest 212 are provided on the top of the backrest tubes 21. The seat tube 22 protrudes outward at the center as a folding handle 225. The front wheel anti-collision member 41 is provided in front of the front wheel assembly 4.

[0024] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0025] Reference Figure 1 As shown, a connecting block 321 is fixedly installed on the rear frame 32. The rear frame 32 is hinged to the front frame 31 through the connecting block 321. A front connecting tube 322 is rotatably connected between the connecting block 321 and the pillar assembly 1. The front frame 31 has a U-shaped outline, and a support tube 311 is provided between its two branch tubes. A first connecting plate 312 is fixedly installed on the support tube 311. The first connecting plate 312 can be hinged to the lower half of the connecting block 321. Specifically, the connecting block 321 is located in the middle of the U-shaped rear frame 32. The connecting block 321 connects the front connecting tube 322 and the front frame 31 respectively. With this configuration, when the seat tube 22 is pulled upward, the front frame 31 can rotate smoothly around its hinge point with the pillar assembly 1.

[0026] Specifically, the front frame 31 has a U-shaped profile, and the ends of its two branch tubes are bent upwards and hinged to the seat inclined tube 221. The upwardly bent part can maintain a near parallel relationship with the seat inclined tube 221 in the unfolded state to optimize the body shape and support effect.

[0027] Reference Figure 1As shown, a limiting block 313 is provided on the inner side of the bend of the front frame 31. The limiting block 313 can abut against the top of the rear frame 32 when the vehicle is unfolded, so that the seat assembly 2 will not continue to rotate when subjected to downward force, thus ensuring the stability of the seat assembly 2.

[0028] Furthermore, a second connecting plate 222 is fixedly provided at the end of the branch pipe of the seat tube 22, and the seat tube 22 is hinged to the middle region of the backrest tube 21 through the second connecting plate 222.

[0029] Preferably, a seat support plate 223 is fixedly provided between the two branch pipes of the seat tube 22, and a seat cushion 224 is provided on the seat support plate 223. The seat support plate 223 can increase the support strength of the seat cushion 224.

[0030] Specifically, the front frame 31 has a U-shaped outline, and third connecting plates 314 are rotatably provided on both sides near one end of the column assembly 1. The front frame 31 is rotatably mounted on the column assembly 1 through the third connecting plates 314.

[0031] Reference Figure 3 As shown, since the rear wheel assembly 5 is higher than the front wheel assembly 4 in the folded state, the rear wheel assembly 5 is provided with an auxiliary wheel 51. The auxiliary wheel 51 can replace the rear wheel to support the vehicle in the folded state so that it can be placed upright.

[0032] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A foldable mobility scooter, characterized in that, include: Column assembly; A seat assembly, including a backrest tube and a seat tube, wherein the seat tube is U-shaped and the ends of its branches are hinged to the backrest tube; The chassis assembly includes a front frame and a rear frame that are hinged to each other. The front frame is hinged to the pillar assembly. The bottom of the seat tube is provided with a seat slant tube that is hinged to the front frame. The bottom end of the backrest tube is hinged to the rear frame. The front wheel assembly is located at the bottom of the column assembly; The rear wheel assembly is located at the bottom of the rear frame; By applying force to drive the seat tube to rotate, the seat tube is brought close to the backrest tube, and the front frame and rear frame are folded relative to each other and placed between the upright assembly and the backrest tube, so that the scooter enters the folded state.

2. The foldable mobility scooter according to claim 1, characterized in that, A connecting block is fixedly installed on the rear frame, and the rear frame is hinged to the front frame through the connecting block. A front connecting tube is rotatably installed between the connecting block and the column assembly.

3. A foldable mobility scooter according to claim 2, characterized in that, The front frame has a U-shaped profile, with a support tube between its two branch tubes. A first connecting plate is fixedly installed on the support tube, and the first connecting plate can be hinged to the lower half of the connecting block.

4. A foldable mobility scooter according to claim 1, characterized in that, The front frame has a U-shaped profile, with the ends of its two branch tubes bent upwards and hinged to the seat diagonal tube.

5. A foldable mobility scooter according to claim 4, characterized in that, A limiting block is provided on the inner side of the bend of the front frame, and the limiting block can abut against the top of the rear frame when the vehicle is unfolded.

6. A foldable mobility scooter according to claim 1, characterized in that, A second connecting plate is fixedly provided at the end of the seat tube branch, and the seat tube is hinged to the middle area of ​​the backrest tube through the second connecting plate.

7. A foldable mobility scooter according to claim 1, characterized in that, A seat support plate is fixedly installed between the two branch pipes of the seat tube, and a seat cushion is installed on the seat support plate.

8. A foldable mobility scooter according to claim 1, characterized in that, The front frame has a U-shaped profile, and third connecting plates are rotatably mounted on both sides near one end of the pillar assembly. The front frame is rotatably mounted on the pillar assembly via the third connecting plates.

9. A foldable mobility scooter according to claim 1, characterized in that, The rear wheel assembly is equipped with an auxiliary wheel, which can support the vehicle when it is folded.

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