A scooter

Abstract

The application discloses a scooter, which comprises a frame body, a seat assembly and a handlebar assembly, the frame body comprises a front frame and a rear frame, the front frame comprises at least one front wheel, the rear frame comprises at least two rear wheels, the handlebar assembly is rotatably arranged on the front frame and used for controlling the front wheel to steer, and the seat assembly is movably arranged on the rear frame, the seat assembly is rotatably provided with an armrest assembly on both sides through a rotating mechanism, so that a first state and a second state can be switched, the pedal can be extended before getting on and off the scooter, the getting on and off of the elderly is more convenient and fast, the pedal is reduced after getting on and off the scooter, the steering is more easy, and the floor area of the scooter in a non-use state is further reduced.

Description

Technical Field

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

[0002] Currently, many mobility scooters have emerged to facilitate walking, especially for those with mobility impairments. These scooters generally consist of a main frame and a seat, with a steering wheel assembly at the front of the seat for steering control. However, those with mobility impairments need to step on the pedals and then turn around to sit in the seat. For elderly people with hunchbacks, if the distance between the steering wheel and the seat is too small, it is inconvenient to turn around; if the distance is too large, it is inconvenient to grip the steering wheel. Summary of the Invention

[0003] In view of the shortcomings of the prior art, this application provides a mobility scooter and a method of using it.

[0004] The technical solution adopted by this application to solve its technical problem is as follows: a personal mobility vehicle, including a frame body, a seat assembly, and a handlebar assembly. The frame body includes a front frame and a rear frame. The front frame includes at least one front wheel, and the rear frame includes at least two rear wheels. The handlebar assembly is rotatably mounted on the front frame for controlling the steering of the front wheels. The vehicle also includes a seat assembly movably mounted on the rear frame. Armrest assemblies are rotatably mounted on both sides of the seat assembly via a rotating mechanism to switch between a first state and a second state. The front frame is connected to the rear frame via a pitch-changing mechanism, allowing the distance between the front and rear frames to be variable, enabling switching between an unfolded state and a folded state. The rotating mechanism can control the pitch-changing mechanism for adjustment.

[0005] In some embodiments, the seat assembly is mounted on the upright of the rear frame via a first elastic member, the seat assembly having a first piston portion extending into a first cavity of the upright, and a first liquid outlet being provided at the bottom of the first cavity.

[0006] In some embodiments, the pitch-changing mechanism includes a first gear, a first rack, and a second rack. The first gear is rotatably mounted on the bottom of the rear frame via a torsion spring. The first rack is fixedly mounted on the front frame and meshes with the first gear for transmission. The second rack is movably mounted in a second cavity via a second elastic member. The bottom of the second cavity is provided with a first liquid inlet and is connected to the first liquid outlet via a connecting pipe.

[0007] In some embodiments, when the seat assembly is lowered, the hydraulic oil in the first cavity is squeezed into the second cavity, causing the second rack to extend and drive the first gear to rotate. The first rack drives the front frame to move, causing the frame body to switch to the retracted state. When the seat assembly automatically resets under the action of the first elastic member, the second rack resets under the action of the second elastic member, causing the first rack to drive the front frame to move, causing the frame body to switch to the unfolded state.

[0008] In some embodiments, the rotating mechanism includes a second gear disposed on a rotating shaft, a third rack meshing with the second gear, the third rack being connected to a third cavity via a third elastic member, and the third cavity being provided with a second liquid outlet.

[0009] In some embodiments, the second rack is disposed within the telescopic housing via a fourth elastic member and slides along a first direction. The telescopic housing is disposed within the second cavity and moves along a second direction. The second rack is provided with a plurality of limiting protrusions that slide within the limiting grooves of the telescopic housing. The bottom of the telescopic housing is provided with a second liquid inlet and a second liquid outlet connected by a connecting pipe.

[0010] In some embodiments, when the armrest assembly switches from the first state to the second state, the third rack rises, drawing liquid from the constriction housing into the third cavity, causing the second rack to disengage from the first gear; when the armrest assembly switches from the second state to the first state, the third rack resets, and the second rack engages with the first gear under the action of the fourth elastic member.

[0011] In some embodiments, a pressure accumulator is further provided between the first outlet and the first inlet. The pressure accumulator includes a pressure accumulator chamber, a piston plate, and a fifth elastic component. The piston plate is disposed in the pressure accumulator chamber through the fifth elastic component. A third inlet and a third outlet are provided on one side of the pressure accumulator chamber. The third inlet is connected to the first outlet through a connecting pipe, and the third outlet is connected to the first inlet through a connecting pipe.

[0012] In some embodiments, a baffle assembly is provided at the third liquid outlet. The baffle assembly includes a movable plate, a sixth elastic component, and an electromagnet. The movable plate is disposed in the accumulator chamber through the sixth elastic component. The electromagnet is controlled by a micro switch disposed at the handrail assembly. When the handrail assembly is in the second state, the micro switch is closed, the electromagnet is energized, and the movable plate blocks the third liquid outlet under the action of the electromagnet.

[0013] A method for using a mobility scooter includes the following steps:

[0014] Step 1: Fold down the armrest assembly from the first state to the second state, and the main body of the frame automatically switches to the unfolded state;

[0015] Step 2: After the driver gets into the vehicle, sits in the seat and flips up the armrest assembly to switch to the first state, the main body of the vehicle frame switches to the folded state;

[0016] Step 3: When getting off the vehicle, first fold down the handrail assembly to the second state and then stand up. The main body of the vehicle frame will automatically switch to the unfolded state.

[0017] Step 4: After getting off the vehicle, flip the handrail assembly up to switch to the first state, and switch the main body of the vehicle frame to the folded state.

[0018] The beneficial effects of this application are: the pedals can be extended before getting on and off the vehicle, making it more convenient and faster for the elderly to get on and off the vehicle, and they can be reduced after getting on and off the vehicle, making it easier to operate and further reducing the footprint of the mobility scooter when not in use. Attached Figure Description

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a structural schematic diagram of the elevation of this application.

[0021] Figure 2 This is a structural diagram of the unfolded state of this application.

[0022] Figure 3 This application Figure 1 A schematic diagram of the internal structure.

[0023] Figure 4 This application is Figure 3 A magnified view of a portion at point A.

[0024] Figure 5 This application Figure 1 A schematic diagram of the bottom structure.

[0025] Figure 6 This application is Figure 5 A magnified view of a portion of point B.

[0026] Figure 7 This is a structural schematic diagram of the pitch control mechanism and the accumulator mechanism of this application.

[0027] Figure 8 A schematic diagram of the handrail assembly of this application.

[0028] Figure 9 This application Figure 8 A schematic diagram of the internal structure.

[0029] In the diagram, 1. Main frame, 11. Front frame, 12. Rear frame, 121. Upright pole, 122. First elastic component, 123. First cavity, 124. First outlet, 13. Front wheel, 14. Rear wheel, 15. Guide rod, 2. Seat assembly, 21. First piston, 3. Handlebar assembly, 4. Rotating mechanism, 41. Second gear, 42. Third rack, 43. Third elastic component, 44. Third cavity, 45. Second outlet, 5. Pitch-changing mechanism, 51. First gear 52. First rack, 53. Second rack, 531. Limiting protrusion, 54. Second elastic component, 55. Second cavity, 56. First liquid inlet, 57. Fourth elastic component, 58. Contraction shell, 581. Limiting groove, 59. Second liquid inlet, 6. Accumulation mechanism, 61. Accumulation chamber, 62. Piston plate, 63. Fifth elastic component, 64. Third liquid inlet, 65. Third liquid outlet, 66. Movable plate, 67. Sixth elastic component, 68. Electromagnet, 7. Handrail assembly. Detailed Implementation

[0030] 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.

[0031] Please refer to Figure 1-9 The illustration shows a specific embodiment of this application. A personal mobility vehicle according to this application includes a frame body 1, a seat assembly 2, and a handlebar assembly 3. The frame body 1 includes a front frame 11 and a rear frame 12. The front frame 11 is provided with a guide rod 15 extending into the rear frame 12, and the front frame 11 is movable along the rear frame 12. The front frame 11 includes at least one front wheel 13, and the rear frame 12 includes at least two rear wheels 14. The handlebar assembly 3 is rotatably mounted on the front frame 11 for controlling the steering of the front wheels 13. The vehicle also includes a seat assembly 2 movably mounted on the rear frame 12.

[0032] In a preferred embodiment, armrest assemblies 7 are rotatably mounted on both sides of the seat assembly 2 via a rotating mechanism 4, enabling switching between a first state and a second state. The first state corresponds to the usage state, and the second state corresponds to the folded state. The front frame 11 is connected to the rear frame 12 via a pitch-changing mechanism 5, allowing the distance between the front frame 11 and the rear frame 12 to be variable, thus enabling switching between the unfolded state and the folded state. The rotating mechanism 4 can control the pitch-changing mechanism 5 for adjustment.

[0033] In a preferred embodiment, the seat assembly 2 is mounted on the upright 121 of the rear frame 12 via a first elastic member 122. The seat assembly is provided with a first piston portion 21 that extends into the first cavity 123 of the upright 121, and a first liquid outlet 124 is provided at the bottom of the first cavity 123.

[0034] Specifically, the pitch-changing mechanism 5 includes a first gear 51, a first rack 52, and a second rack 53. The first gear 51 is rotatably mounted on the bottom of the rear frame 12 via a torsion spring. The first rack 52 is fixedly mounted on the front frame 11 and meshes with the first gear 51 for transmission. The second rack 53 is movably mounted in the second cavity 55 via a second elastic member 54. The bottom of the second cavity 55 is provided with a first liquid inlet 56, which is connected to the first liquid outlet 124 via a connecting pipe.

[0035] When the seat assembly 2 is lowered, the hydraulic oil in the first cavity 123 is squeezed into the second cavity 55, causing the second rack 53 to extend and drive the first gear 51 to rotate. The first rack 52 drives the front frame 11 to move, causing the frame body 1 to switch to the folded state. When the seat assembly 2 automatically resets under the action of the first elastic member 122, the second rack 53 resets under the action of the second elastic member 54, causing the first rack 52 to drive the front frame 11 to move, causing the frame body 1 to switch to the unfolded state. In short, when the user sits down, the frame body 1 will switch to the folded state, and when the user stands up, the frame body 1 will switch to the unfolded state.

[0036] To allow the frame 12 body 1 to be folded up after disembarking to reduce floor space, and unfolded before boarding for easy access, a preferred embodiment includes a rotating mechanism 4. The rotating mechanism 4 includes a second gear 41 mounted on a rotating shaft and a third rack 42 meshing with the second gear 41. The third rack 42 is connected to a third cavity 44 via a third elastic member 43. The third cavity 44 has a second liquid outlet 45. The second rack 53 is mounted within a contraction housing 58 via a fourth elastic member 57 and slides along a first direction. The telescopic housing is mounted within the second cavity 55 and moves along a second direction. The second rack 53 has several limiting protrusions 531 that slide within limiting grooves 581 of the telescopic housing. The bottom of the telescopic housing has a second liquid inlet 59 connected to the second liquid outlet 45 via a connecting pipe.

[0037] Specifically, when the handrail assembly 7 switches from the first state to the second state, the third rack 42 rises, drawing the liquid in the shrink housing 58 into the third cavity 44, causing the second rack 53 to disengage from the first gear 51; when the handrail assembly 7 switches from the second state to the first state, the third rack 42 resets, and the second rack engages with the first gear 51 under the action of the fourth elastic member 57.

[0038] Since the user habit is to sit down and then pull up the armrest assembly 7 after getting on the vehicle, when the armrest assembly 7 is in the second state, the first gear 51 and the second rack 53 are disengaged, and the frame body 1 cannot be controlled to switch to the folded state. Therefore, a pressure accumulator 6 is provided. The pressure accumulator 6 is located between the first liquid outlet 124 and the first liquid inlet 56. The pressure accumulator 6 includes a pressure accumulator chamber 61, a piston plate 62 and a fifth elastic component 63. The piston plate 62 is located in the pressure accumulator chamber 61 through the fifth elastic component 63. The pressure accumulator chamber 61 is provided with a third liquid inlet 64 and a third liquid outlet 65 on one side. The third liquid inlet 64 is connected to the first liquid outlet 124 through a connecting pipe, and the third liquid outlet 65 is connected to the first liquid inlet 56 through a connecting pipe.

[0039] In a preferred embodiment, a baffle assembly is provided at the third liquid outlet 65. The baffle assembly includes a movable plate 66, a sixth elastic component 67, and an electromagnet 68. The movable plate 66 is disposed in the pressure accumulator 61 via the sixth elastic component 67. The electromagnet 68 is controlled by a microswitch disposed at the handrail assembly 7. When the handrail assembly 7 is in the second state, the microswitch is closed, the electromagnet 68 is energized, and the movable plate 66 blocks the third liquid outlet 65 under the action of the electromagnet 68.

[0040] Specifically, after sitting down, the hydraulic oil in the first cavity 123 enters the accumulator 61. When the armrest assembly 7 is flipped up, the second rack 53 meshes with the first gear 51, the third outlet 65 opens, and the hydraulic oil is pushed into the second cavity 55 under the action of the sixth elastic component 67 and the piston plate 62, so that the frame body 1 is in the folded state.

[0041] The following steps are required to use this mobility scooter:

[0042] Step 1: Fold down the armrest assembly 7 to switch from the first state to the second state. The second rack 53 and the first gear 51 are in a disengaged state. The first gear 51 rotates under the action of the torsion spring, and the frame body 1 automatically switches to the unfolded state.

[0043] Step 2: After the driver gets into the vehicle, he sits in the seat and flips up the armrest assembly 7 to switch to the first state. The second rack 53 meshes with the first gear 51, and oil enters the second cavity 55 at the same time. The frame body 1 switches to the retracted state.

[0044] Step 3: When getting off the vehicle, first flip the handrail assembly 7 down to the second state and then stand up. The second rack 53 and the first gear 51 are in a disengaged state. The first gear 51 rotates under the action of the torsion spring. Since the movable plate 66 blocks the third liquid outlet 65, the second rack 53 will not reset. The frame body 1 automatically switches to the unfolded state.

[0045] Step 4: After getting off the vehicle, flip the armrest assembly 7 up to switch to the first state, open the third liquid outlet 65, reset the seat assembly 2, and switch the frame body 1 to the folded state.

[0046] The above description is merely a preferred embodiment of this application and does not constitute any limitation on this application. Any simple modifications, equivalent changes, or alterations made without departing from the technical solution of this application shall fall within the protection scope of this application.

Claims

1. A personal mobility vehicle, comprising a frame body, a seat assembly, and a handlebar assembly, characterized in that, The main body of the vehicle frame includes a front frame and a rear frame. The front frame includes at least one front wheel, and the rear frame includes at least two rear wheels. The handlebar assembly is rotatably mounted on the front frame and is used to control the steering of the front wheels; It also includes a seat assembly that is movably mounted on the rear frame. The seat assembly has armrests mounted on both sides via a rotating mechanism, which allows it to switch between a first state and a second state. The front frame is connected to the rear frame via a pitch-changing mechanism, making the distance between the front frame and the rear frame variable, so as to switch between the unfolded state and the retracted state. The rotating mechanism can control the pitch-changing mechanism to make adjustments; The seat assembly is mounted on the upright of the rear frame via a first elastic member. The seat assembly is provided with a first piston portion that extends into a first cavity of the upright. A first liquid outlet is provided at the bottom of the first cavity. The pitch-changing mechanism includes a first gear, a first rack, and a second rack. The first gear is rotatably mounted on the bottom of the rear frame via a torsion spring. The first rack is fixedly mounted on the front frame and meshes with the first gear for transmission. The second rack is movably mounted in the second cavity via a second elastic component. The bottom of the second cavity is provided with a first liquid inlet and is connected to the first liquid outlet via a connecting pipe. When the seat assembly is lowered, the hydraulic oil in the first cavity is squeezed into the second cavity, causing the second rack to extend and drive the first gear to rotate. The first rack drives the front frame to move, causing the frame body to switch to the retracted state. When the seat assembly automatically resets under the action of the first elastic component, the second rack resets under the action of the second elastic component, causing the first rack to drive the front frame to move, causing the frame body to switch to the unfolded state. The rotating mechanism includes a second gear mounted on a rotating shaft, a third rack meshing with the second gear, the third rack being connected to a third cavity via a third elastic member, and the third cavity being provided with a second liquid outlet; The second rack is disposed in the telescopic housing via the fourth elastic component and slides in the first direction. The telescopic housing is disposed in the second cavity and moves in the second direction. The second rack is provided with a plurality of limiting protrusions that slide in the limiting groove of the telescopic housing. The bottom of the telescopic housing is provided with a second liquid inlet and a second liquid outlet connected by a connecting pipe. When the armrest assembly switches from the first state to the second state, the third rack rises, drawing the liquid in the contraction housing into the third cavity, causing the second rack to disengage from the first gear. When the handrail assembly switches from the second state to the first state, the third rack resets, and the second rack meshes with the first gear under the action of the fourth elastic member.

2. The mobility scooter according to claim 1, characterized in that, A pressure accumulator is also provided between the first liquid outlet and the first liquid inlet. The pressure accumulator includes a pressure accumulator chamber, a piston plate and a fifth elastic component. The piston plate is disposed in the pressure accumulator chamber through the fifth elastic component. A third liquid inlet and a third liquid outlet are provided on one side of the pressure accumulator chamber. The third liquid inlet is connected to the first liquid outlet through a connecting pipe, and the third liquid outlet is connected to the first liquid inlet through a connecting pipe.

3. A mobility scooter according to claim 2, characterized in that, A baffle assembly is provided at the third liquid outlet. The baffle assembly includes a movable plate, a sixth elastic component, and an electromagnet. The movable plate is disposed in the accumulator chamber through the sixth elastic component. The electromagnet is controlled by a micro switch disposed at the handrail assembly. When the handrail assembly is in the second state, the micro switch is closed, the electromagnet is energized, and the movable plate blocks the third liquid outlet under the action of the electromagnet.

4. A mobility scooter according to any one of claims 1-3, characterized in that, The use of the mobility scooter includes the following steps: Step 1: Fold down the armrest assembly from the first state to the second state, and the main body of the frame automatically switches to the unfolded state; Step 2: After the driver gets into the vehicle, sits in the seat and flips up the armrest assembly to switch to the first state, the main body of the vehicle frame switches to the folded state; Step 3: When getting off the vehicle, first fold down the handrail assembly to the second state and then stand up. The main body of the vehicle frame will automatically switch to the unfolded state. Step 4: After getting off the vehicle, flip the handrail assembly up to switch to the first state, and switch the main body of the vehicle frame to the folded state.

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