A dual-mode foldable scooter

Abstract

The present invention discloses a dual-mode foldable scooter, comprising a vehicle frame, a folding mechanism, a pedal mechanism, a steering mechanism and a travel mechanism, wherein the vehicle frame comprises a front frame rod, a handle and a rear frame rod; the folding mechanism comprises an X-shaped cross rod connected between the two front frame rods; the pedal mechanism is arranged between the two rear frame rods, and comprises a sliding shaft, a folding rod assembly, an I-beam and a pedal; the steering mechanism comprises a steering rod, a front wheel, a steering linkage rod and a rear wheel; the travel mechanism comprises a battery pack, an electric drive module arranged on the front wheel and a switching button arranged at the handle. The present invention can realize outdoor walking activities for a long time, a long distance and in multiple scenarios by switching between the power-assisted / electric-driven dual modes, and the scooter is foldable and occupies a small space when idle, and the scooter can be appropriately adjusted in position according to people with different limbs, and has strong versatility.

Description

Technical Field

[0001] The present invention relates to the technical field of walkers, and in particular to a dual-mode foldable scooter. Background Art

[0002] my country has gradually entered an aging society. The elderly and other people with mobility problems often have difficulty traveling, and most people can only stay at home to recuperate. Although there are devices on the market today that assist the elderly and people with mobility problems to travel, most of these devices are crutches, which have a simple structure and cannot solve the fatigue caused by long-term use. In addition, the elderly and people with mobility problems who need to use such tools often easily feel tired. In order to meet market demand, there are also wheelchair-type push-type devices, but such devices often require external force when used, that is, they need to be accompanied by family members to push them. When there is no family member to push them, they need to push the side wheels on both sides by themselves, which is impossible for the weak and powerless elderly to travel for a long time and over long distances. There are also many electric wheelchairs on the market, but they are expensive and cannot meet the consumption needs of such people. Moreover, most wheelchair-type push-type devices are stereotyped structures, which are less versatile for the elderly and people with mobility problems in different limb states, and the equipment that can make up for this shortcoming will cause the problem of occupying a large space, which is difficult to promote and use.

[0003] The existing patent application with authorization announcement number CN202909039U discloses a walker for the elderly, which can only assist walking but cannot be electrically driven to reduce fatigue of the user.

[0004] There is also a patent application with the authorization announcement number CN209951603U, which discloses an electric wheelchair, including a wheelchair main frame, front wheels and rear wheels arranged at the bottom of the wheelchair main frame, and a driving device electrically connected to the front wheel. It also includes a sensing component installed at the rear of the wheelchair main frame and facing the rear of the wheelchair main frame, used to sense the distance to the rear of the wheelchair main frame and the obstacles behind; a display device, which is arranged in front of the wheelchair main frame and electrically connected to the sensing component; a control component, including a sensing control part and a driving control part electrically connected to the driving device, the sensing control part and the driving control part are respectively arranged on the left and right sides of the wheelchair main frame, and the sensing control part is electrically connected to the sensing component. The sensing component is controlled by the sensing control part, and the data on the distance when reversing is displayed on the display device, which is convenient for the user to control whether to drive the wheelchair to reverse and how to reverse safely, avoiding the situation that the situation behind the wheelchair main frame cannot be detected and causes collision with obstacles, which brings convenience to the user. The electric wheelchair has high manufacturing cost and occupies a large space, and it is difficult to promote and use. Summary of the invention

[0005] In view of the above-mentioned problems existing in the prior art, an object is to provide a dual-mode foldable scooter, which can realize long-term, long-distance and multi-scenario outdoor walking activities by switching between power-assisted / electric-driven dual modes. The scooter is foldable and occupies little space when idle. Moreover, the scooter can be appropriately adjusted to the position of people with different limbs, and has strong versatility.

[0006] The specific technical solutions are as follows:

[0007] A dual-mode foldable scooter comprising:

[0008] A vehicle frame, the vehicle frame comprising a left-right symmetrical and vertically arranged front frame bar, a handle connected to the top of the front frame bar, and a rear frame bar foldably connected to the front frame bar;

[0009] A folding mechanism, the folding mechanism comprising an X-shaped cross bar connected between the two frame front bars, the two ends of the bottom of the X-shaped cross bar are respectively hinged to the vehicle frame, and the two ends of the top of the X-shaped cross bar are respectively connected to the frame front bar through a connecting rod;

[0010] A pedal mechanism, the pedal mechanism is arranged between the two frame rear rods, and comprises a sliding shaft arranged inside the frame rear rod, a folding rod assembly connected to the sliding shaft, an I-beam hinged to the folding rod assembly, and a pedal connected to the I-beam;

[0011] A steering mechanism, the steering mechanism comprising a steering rod arranged inside a front rod of the frame, a front wheel arranged at the bottom end of the front rod of the frame and connected to the steering rod, a rear wheel connected to a rear rod of the frame, and a steering linkage rod connected to the front wheel;

[0012] The traveling mechanism includes a battery pack arranged in the front rod of the frame, an electric drive module arranged on the front wheel, and a switching button arranged on the handle.

[0013] Compared with the prior art, the scooter of the present invention is not limited to the function of a walking scooter, but also has an electric drive mode. When the user is tired, the scooter can be switched from the power-assisted mode to the electric drive mode and travel by electric power, which can adapt to outdoor walking activities for a long time, over a long distance, and in multiple scenarios. Furthermore, the scooter is provided with a folding mechanism, which can be folded and folded when not in use. It occupies little space and is easy to store, which can meet the usage needs of most users.

[0014] Specifically, the front frame rod and the rear frame rod are connected via a frame connecting sleeve, and the rear frame rod is hinged to the frame connecting sleeve, so that the rear frame rod can be folded upwards for storage.

[0015] Specifically, one end of the connecting rod connected to the front rod of the frame is a foldable end, and the other end is provided with a through hole. The end of the X-shaped cross rod connected to the connecting rod is fixed with a hanging rod, and the hanging rod is inserted into the through hole of the connecting rod for connection. When folding, the connecting rod is folded upward to drive the X-shaped cross rod to fold.

[0016] Furthermore, in order to prevent accidental unfolding after folding, the hanging rod is provided with a lock, which can lock the two hanging rods in the folded state.

[0017] Specifically, the folding rod assembly includes a hinged folding short rod and a folding long rod, the folding short rod is connected to the sliding shaft through a sliding bearing and a rotating seat, and the folding long rod is hinged to the I-beam.

[0018] Furthermore, a folding rod buckle is provided at the rear portion of the rear rod of the frame, and the folding rod assembly is fixed in the folding rod buckle after being folded.

[0019] Furthermore, a slot is provided at the bottom of the I-beam, and the slot is mounted on the sliding shaft.

[0020] When in use, unfold the folding long rod and the folding short rod, and then rotate them through the swivel seat so that the half-palm pedal faces upward, and then move the sliding bearing to splice the half-palm pedals on the left and right sides into a complete pedal, and fix the slot at the bottom of the I-beam on the sliding shaft. The pedal position can be adjusted according to the different limb needs of the user to achieve a comfortable position for the user when using it. It has strong versatility.

[0021] Preferably, the steering linkage rod is configured as a foldable rod, which can be folded to accommodate the folding of the folding mechanism.

[0022] Preferably, the rear wheels are shock-absorbing planetary wheels to stabilize the performance of the scooter and improve comfort, while also preventing the user from falling and improving safety performance.

[0023] Preferably, the dual-mode foldable scooter is provided with a brake system, which can brake to ensure safety when encountering an emergency during travel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention in the unfolded state / electric drive mode;

[0025] Figure 2 It is a side view of the overall structure of the present invention in the unfolded state / electric drive mode;

[0026] Figure 3 It is a front view of the overall structure (with seat cushion) of the present invention in the unfolded state / electric drive mode;

[0027] Figure 4A top view of the overall structure (with seat cushion) of the present invention in the unfolded state / electric drive mode;

[0028] Figure 5 It is a schematic diagram of the overall structure of the present invention in the power-assist mode;

[0029] Figure 6 It is a top view of the overall structure (with seat cushion) of the present invention in power-assist mode;

[0030] Figure 7 It is a schematic diagram of the overall structure of the present invention in a folded state;

[0031] Figure 8 It is a side view of the overall structure of the present invention in a folded state;

[0032] Fig. 9 It is a front view of the overall structure of the present invention in a folded state;

[0033] Fig.10 It is a top view of the overall structure of the present invention in a folded state;

[0034] Fig.11 It is a partial structural schematic diagram of the folding rod assembly in the present invention;

[0035] Fig.12 is a schematic structural diagram of the rear wheel in the present invention;

[0036] Fig.13 It is a partial structural schematic diagram of the brake system in the present invention.

[0037] In the accompanying drawings, 1-handle, 2-brake grip, 3-frame front rod, 4-frame connecting sleeve, 5-front wheel bracket, 6-front wheel, 7-electric drive module, 8-rolling bearing, 9-connecting rod, 10-X-type cross rod, 11-lockable cross rod sliding sleeve, 12-frame rear rod, 13-sliding shaft, 14-sliding bearing, 15-universal joint, 16-swivel seat, 17-folding short rod, 18-folding long rod, 19-I-beam, 20-pedal, 21-lock, 22-folding rod buckle, 23-brake slide, 24-brake slider, 25-rear wheel frame, 26-pushing friction block, 27-pushing slide, 28-limiting ring, 29-rear rod tail sleeve, 30-fixing screw, 31-rotating shaft pin, 32-rear wheel, 33-seat cushion, 34-steering linkage rod. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figure 1 and Figure 2 As shown, a dual-mode foldable scooter is shown. The scooter has a left-right symmetrical structure and generally includes a vehicle frame, a folding mechanism, a pedal mechanism, a steering mechanism and a traveling mechanism.

[0040] Specifically, the vehicle frame includes a left-right symmetrical and vertically arranged front frame bar 3, a handle 1 connected to the top of the front frame bar 3, a rear frame bar 12 foldably connected to the front frame bar 3, and a rear bar tail sleeve 29. The front frame bar 3 is a hollow bar, the front frame bar 3 and the rear frame bar 12 are connected through a frame connecting sleeve 4, and the rear frame bar 12 and the frame connecting sleeve 4 are hinged through a rotating shaft pin 31, so that the rear frame bar 12 can be folded upward.

[0041] The folding mechanism comprises an X-shaped cross bar 10 connected between two frame front bars 3, the two ends of the bottom of the X-shaped cross bar 10 are respectively hinged with the frame connecting sleeve 4, and the two ends of the top of the X-shaped cross bar 10 are respectively fixedly connected with the frame front bar 3 through the connecting rod 9, wherein one end of the connecting rod 9 connected with the frame front bar 3 is a foldable end, and the other end is provided with a through hole, and one end of the X-shaped cross bar 10 connected with the connecting rod 9 is fixedly provided with a hanging rod, and the hanging rod is inserted into the through hole of the connecting rod 9 for connection. When folding, the connecting rod 9 is folded upward to drive the folding of the X-shaped cross bar 10. In order to prevent accidental unfolding after folding, a lock buckle 21 is provided on the hanging rod, and the lock buckle 21 can lock the two hanging rods in the folded state. Similarly, in order to prevent accidental folding when unfolding, a lockable cross bar sliding sleeve 11 is provided at the cross connection of the X-shaped cross bar 10, and the sliding sleeve can slide relatively on the cross bar, and the two sliding sleeves are fixed by screws and can rotate relatively.

[0042] Furthermore, a matching shopping bag can be arranged on the X-shaped cross bar 10 , and four hooks are fixed on the matching shopping bag, which can be selectively hooked on the X-shaped cross bar 10 .

[0043] Furthermore, a cushion 33 may be provided on the X-shaped cross bar 10, and a T-shaped socket is provided at the edge of the cushion 33, which can be fixed on the X-shaped cross bar 10. When the user is tired, he can take a short rest, such as Figure 3 and Figure 4 shown.

[0044] The pedal mechanism is arranged between the two frame rear rods 12, and includes a sliding shaft 13 arranged on the inner side of the front part of the frame rear rod 12, a folding rod assembly connected to the sliding shaft 13, an I-beam 19 hinged to the folding rod assembly, and a half-palm pedal 20 connected to the I-beam 19, wherein the folding rod assembly includes a folding short rod 17 and a folding long rod 18 hinged by a rotating pin shaft, as shown in FIG. Fig.11 The folding short rod 17 is connected to the sliding shaft 13 through the sliding bearing 14 and the rotating seat 16, and the folding long rod 18 is hinged to the I-beam 19. A folding rod buckle 22 is provided at the rear of the frame rear rod 12. After the folding long rod 18 and the folding short rod 17 are folded, the folding rod is fixed in the folding rod buckle 22. When in use, the folding long rod 18 and the folding short rod 17 are unfolded, and then rotated through the rotating seat 16 so that the half-palm pedal 20 faces upward, and a slot is provided at the bottom of the I-beam 19, and then the sliding bearing 14 is moved to splice the half-palm pedal 20 into a complete pedal 20, and the slot at the bottom of the I-beam 19 is fixedly mounted on the sliding shaft 13. The position of the pedal 20 can be adjusted according to the user's physical needs, and the versatility is strong.

[0045] The steering mechanism includes a steering rod arranged inside the front rod 3 of the frame, a front wheel 6 and a front wheel bracket 5 arranged at the bottom end of the front rod 3 of the frame and connected to the steering rod, a rear wheel 32 and a rear wheel frame 25 connected to the rear rod 12 of the frame, and a steering linkage rod 34 connected to the front wheel bracket 5. The front rod 3 of the frame and the steering rod can rotate relative to each other. The steering rod is connected to the handle 1. The handle 1 controls the steering rod to drive the front wheel 6 to turn. At this time, the front rod 3 of the frame is relatively still. Since the steering linkage rod 34 is arranged, the arrangement of the steering linkage rod 34 can realize the simultaneous steering of the left and right front wheels 6, so that the direction of the scooter can be controlled more accurately. In order to facilitate folding, the steering linkage rod 34 is arranged as a foldable rod. In the present invention, the front wheel 6 is a shock-absorbing vacuum wheel and a universal wheel, which is connected to the steering rod through a universal joint 15 to realize rotation; the rear wheel 32 is a planetary wheel, such as Fig.12 , is provided with three wheels, when traveling, wherein two wheels roll, and one wheel is used as a spare wheel. A shock absorbing device is provided on the rear wheel 32 to stabilize the performance of the scooter, improve comfort, and also prevent the user from falling, thereby improving safety performance.

[0046] As an improvement of the present invention, the dual-mode foldable scooter is provided with a brake system, specifically, a brake lever 2 is provided at the handle 1, the brake lever 2 is connected to the handle 1 through an internal pin, a spring is installed inside the brake lever 2, so that the brake lever 2 rebounds to the initial position during use, and a limit ring 28, a brake slider 24, a brake slide 23, a push friction block 26 and a push slide 27 are provided at the rear wheel 32. Fig.13 When braking, hold the brake handle 2 tightly to control the brake slider 24 to slide in the brake slide 23 to achieve the pushing and deceleration braking of the pushing friction block 26 in the pushing slide 27.

[0047] The travel mechanism includes a battery pack arranged in the front rod 3 of the frame, an electric drive module 7 arranged on the front wheel 6, and a switching button arranged at the handle 1. The battery pack, the electric drive module 7 and the switching button are electrically connected. In the present invention, the scooter can be switched between the power-assisted / electric-driven mode by the switching button. The electric-driven mode realizes the electric travel of the scooter, and the power-assisted mode mechanically assists the user to travel. The motor used for driving can be any other form of driving motor or device known in the technical field such as an AC motor, a DC motor, a servo motor, a stepping motor, etc. A snap-on opening and closing structure is provided at the end of the handle 1. After opening, the internal battery pack can be taken out for replacement or charging.

[0048] When the scooter is unfolded, first, the frame rear rod 12 is flipped backward. After flipping, it can be observed from the side that there is a protruding portion on the inner side of the frame connecting sleeve 4, and the protruding portion can fit the internal shape of the frame rear rod 12. When the frame rear rod 12 is flipped to an appropriate position, it is pushed forward, and the rotating shaft pin 31 can slide in the predetermined oblong opening on the frame connecting sleeve 4. The frame rear rod 12 can be fixed on the aforementioned protruding portion, which plays a limiting role, making the scooter more stable during use.

[0049] Next, push upward the rod lock 21, unfold the X-shaped cross rod 10 to both sides, and press the steering linkage rod 34 downward to a horizontal position. At this time, the circular holes opened at the middle connection of the steering linkage rod 34 overlap, and the corresponding axle pins are inserted into the two circular holes to fix the positions of the two rods. At the same time, the lockable cross rod sliding sleeve 11 slides to the predetermined marked position, so that the connecting rod 9 is flush with the X-shaped cross rod 10, and the frames on both sides are perpendicular to the ground, and the locking mechanism on the lockable cross rod sliding sleeve 11 is tightened to limit the position. At this time, the overall state of the scooter is as follows: Figure 5 and Figure 6 In this state, when pushing in the power-assisted mode, a matching shopping bag (not shown) can be hung on the groove of the short end cross bar of the X-shaped cross bar 10, or a common shopping bag, convenience bag, etc. can be hung; when stopping to rest, the T-shaped socket provided on the edge of the cushion 33 can be fixed inside the long end cross bar of the X-shaped cross bar 10, and the user can sit on the cushion 33 to rest, as shown in FIG. Figure 6 shown.

[0050] Finally, if you want to switch the power-assisted mode to the electric drive mode, you should first unfold the pedal mechanisms on both sides from the folded state to a horizontal state, so that the I-beams 19 on both sides are in a horizontal position and just rest on the sliding shafts 13 on both sides. The positions of the pedals on the left and right sides can be adjusted accordingly to positions that suit the user's usage habits. Two protruding structures are provided on the sliding shaft 13 as limiting structures, which can be loosened for front and back adjustment. After fixing the I-beam 19 to the limiting structure and making sure that the overall structure of the scooter is stable, the user can stand on the pedal 20 and press the mode switch button on the handle 1 to switch to the electric drive mode. At this time, the overall state of the scooter is as follows: Figure 1 shown.

[0051] After use, the process of folding the scooter is the reverse process of unfolding it. Figures 7 to 10 shown.

[0052] The present invention can switch between power-assisted and electric-drive modes, and has stronger functionality; the setting of the folding mechanism greatly reduces the space occupied by the scooter in an idle state, and the folding mechanism can be adjusted and customized, that is, the folding mechanism can be folded and unfolded, wherein the length of the rods constituting the folding mechanism can be adjusted according to the user's body structure, and different supporting schemes can be selected for replacement. In order to make the folding mechanism more stable during use, hydraulic rods, pneumatic devices, etc. can be added. The present invention fundamentally solves the problems of existing scooters such as single adaptability, simple functions, and limited use distance and time range, and realizes outdoor walking activities in long-term, long-distance, and multi-scenario situations, providing safer and more convenient travel escort.

[0053] In addition, the vehicle frame of the present invention is made of high-strength light alloy steel, each structural connection is made of high-strength light environmentally friendly plastic, and the seat cushion 33 is made of new high-strength synthetic fiber cloth. Compared with similar products, it reduces costs, reduces overall weight, and is more comfortable and safe.

[0054] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dual-mode foldable scooter, characterized in that: include: A vehicle frame, the vehicle frame comprising a left-right symmetrical and vertically arranged front frame rod (3), a handle (1) connected to the top of the front frame rod (3), and a rear frame rod (12) foldably connected to the front frame rod (3); A folding mechanism, the folding mechanism comprising an X-shaped cross bar (10) connected between two frame front bars (3), the two ends of the bottom of the X-shaped cross bar (10) are respectively hinged to the vehicle frame, and the two ends of the top of the X-shaped cross bar (10) are respectively connected to the frame front bars (3) through connecting rods (9); A pedal mechanism, the pedal mechanism is arranged between two frame rear rods (12), comprising a sliding shaft (13) arranged inside the frame rear rods (12), a folding rod assembly connected to the sliding shaft (13), an I-beam (19) hinged to the folding rod assembly, and a pedal (20) connected to the I-beam (19); the folding rod assembly comprises a hinged folding short rod (17) and a folding long rod (18), the folding short rod (17) is connected to the sliding shaft (13) through a sliding bearing (14) and a rotating seat (16), and the folding long rod (18) is hinged to the I-beam (19); A steering mechanism, the steering mechanism comprising a steering rod arranged inside a front rod (3) of the frame, a front wheel (6) arranged at the bottom end of the front rod (3) of the frame and connected to the steering rod, a rear wheel (32) connected to a rear rod (12) of the frame, and a steering linkage rod (34) connected to the front wheel (6); A travel mechanism, the travel mechanism comprising a battery pack arranged in a front rod (3) of a frame, an electric drive module (7) arranged on a front wheel (6), and a switch button arranged on a handle (1); A folding rod buckle (22) is provided at the rear of the frame rear rod (12), and the folding rod assembly is fixed in the folding rod buckle (22) after being folded; The bottom of the I-beam (19) is provided with a slot, and the slot is mounted on the sliding shaft (13); The steering linkage rod (34) is configured as a foldable rod.

2. The dual-mode foldable scooter according to claim 1, characterized in that: The frame front rod (3) and the frame rear rod (12) are connected via a frame connecting sleeve (4), and the frame rear rod (12) and the frame connecting sleeve (4) are hinged.

3. The dual-mode foldable scooter according to claim 1, characterized in that: One end of the connecting rod (9) connected to the front rod (3) of the frame is a foldable end, and the other end is provided with a through hole. One end of the X-shaped cross rod (10) connected to the connecting rod (9) is fixedly provided with a hanging rod, and the hanging rod is inserted into the through hole of the connecting rod (9) for connection.

4. The dual-mode foldable scooter according to claim 3, characterized in that: A lock buckle (21) is provided on the hanging rod.

5. The dual-mode foldable scooter according to claim 1, characterized in that: The rear wheel (32) is a shock-absorbing planetary wheel.

6. The dual-mode foldable scooter according to claim 1, characterized in that: The dual-mode foldable scooter is provided with a braking system.

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