A portable foldable retractable scooter
Patent Information
- Application Number
- CN202620204396.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-11
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2036-02-11
AI Technical Summary
[0005]为了弥补以上不足，本实用新型提供了一种便携式可折叠伸缩代步车，旨在解决现有技术中折叠联动性差、收纳便携性不足、调节适配性低、锁止不安全、骑行减震与稳定性不佳的问题
1、本实用新型中，通过一键式联动折叠机构，利用滑轨套、滑轨、调节滑槽、拉杆、拉簧、卡槽连接杆、弯连杆及前后连接杆，实现前车架、后车架与座椅连接件同步联动折叠，操作便捷，简化折叠流程，大幅缩小代步车收纳体积，提升便携性，折叠后占用空间小，便于存放、携带及运输，各组件对称配合，受力均匀，运动平稳，锁止可靠，保障折叠与展开过程稳定顺畅。
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Figure CN224899018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mobility scooter technology, and in particular to a portable, foldable, and retractable mobility scooter. Background Technology
[0002] With the acceleration of urbanization, the demand for short-distance urban travel is growing. Folding scooters, with their convenient and flexible features, have become the mainstream travel tool for daily commutes, outdoor trips, and short-distance shuttles.
[0003] Folding mobility scooters can effectively solve the problem of short-distance commuting and meet the public's demand for lightweight and portable travel tools.
[0004] While existing folding mobility scooters have achieved basic folding and storage functions, most of them employ a segmented folding structure, resulting in cumbersome operation steps and an inability to achieve one-button folding and unfolding. This leads to low efficiency for single-person operation. The overall size reduction after folding is limited, occupying a significant amount of space and making it difficult to store in confined spaces such as elevators or car trunks. The handlebar telescopic adjustment structure lacks flexibility and adaptability, failing to meet the operation and usage needs of people of different heights. Furthermore, the reliability of the folding locking mechanism is insufficient, posing a safety hazard due to accidental loosening and unfolding after folding. Additionally, the wheel shock absorption is poor, resulting in noticeable bumps during riding. Overall stability, comfort, and safety all require further improvement. Therefore, this paper proposes a portable foldable telescopic mobility scooter to address the aforementioned issues. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a portable foldable telescopic mobility scooter, which aims to solve the problems of poor folding linkage, insufficient storage and portability, low adjustability, unsafe locking, and poor shock absorption and stability during riding in the prior art.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a portable foldable telescopic mobility scooter, comprising a front frame, a rear frame, handlebars, and a seat connector, wherein a front wheel assembly is fixedly connected to the outer wall of the front frame, a rear wheel assembly is fixedly connected to the outer wall of the rear frame, a bending nested telescopic structure is provided between the front frame and the handlebars, and a one-button linkage folding mechanism is provided between the front frame, the rear frame, and the seat connector; The one-button linkage folding mechanism includes a slide rail sleeve, an adjusting slide groove, a slot connecting rod, and a bent connecting rod. The outer wall of the slide rail sleeve is fixedly connected to the inner wall of the front frame. A slide rail is slidably connected to the inner wall of the rear end face of the slide rail sleeve. The rear end face of the slide rail is fixedly connected to the back of the rear frame. The adjusting slide groove is opened in the inner wall of the seat connector. A pull rod is slidably connected to the inner side of the adjusting slide groove. A tension spring is sleeved and connected to the outer wall of the pull rod. The other end of the tension spring is fixedly connected to the inner wall of the seat connector. The outer walls of one end of the slot connecting rod and the bent connecting rod are sequentially hinged to the inner wall of the bottom of the seat connector. The inner wall of the other end of the slot connecting rod is hinged to the upper surface of the rear frame. The inner wall of the other end of the bent connecting rod is hinged to a front and rear connecting rod. The end of the front and rear connecting rod away from the bent connecting rod is hinged to the leading edge of the lower surface of the front frame.
[0007] As a further description of the above technical solution: The adjustment slide is provided in two parts, which are mirror images of each other along the central axis of the seat connector, and the two ends of the pull rod are slidably connected to the inner walls of the two adjustment slides respectively.
[0008] As a further description of the above technical solution: The tie rod has a T-shaped rod structure.
[0009] As a further description of the above technical solution: Two slotted connecting rods are provided, and the two slotted connecting rods are mirror images of each other along the central axis of the pull rod. The top outer wall of the slotted connecting rod is provided with a slot, wherein the inner wall of the slot is adapted to the size of the end outer wall of the pull rod.
[0010] As a further description of the above technical solution: Two of each of the bending connecting rods and front and rear connecting rods are provided. The two bending connecting rods and front and rear connecting rods are mirror images of each other along the central axis between the front frame and the rear frame, and the two bending connecting rods and front and rear connecting rods are arranged in a one-to-one correspondence.
[0011] As a further description of the above technical solution: The bent nested telescopic structure includes a connecting column and a telescopic sleeve. The outer wall of the bottom end of the connecting column is fixedly connected to the front edge of the upper surface of the front frame, and the inner wall of the telescopic sleeve is sleeved and connected to the outer wall of the bottom end of the handlebar.
[0012] As a further description of the above technical solution: A bending locking component is fixedly connected between the connecting post and the telescopic sleeve, and a telescopic adjustment buckle is fixedly connected at the top of the telescopic sleeve at the connection point of the handlebar.
[0013] As a further description of the above technical solution: Both the front and rear wheel assemblies use shock-absorbing tires.
[0014] This utility model has the following beneficial effects: 1. In this utility model, a one-button linkage folding mechanism is used to realize the synchronous linkage folding of the front frame, rear frame and seat connector through the use of slide rail sleeve, slide rail, adjusting slide groove, pull rod, tension spring, card slot connecting rod, bending connecting rod and front and rear connecting rod. The operation is convenient, the folding process is simplified, the storage volume of the scooter is greatly reduced, the portability is improved, the space occupied after folding is small, and it is easy to store, carry and transport. The components are symmetrically matched, the force is even, the movement is stable, the locking is reliable, and the folding and unfolding process is stable and smooth.
[0015] 2. In this utility model, a stable main frame is formed by the front frame, rear frame, handlebars, and seat connector. The front wheel assembly and rear wheel assembly are equipped with shock-absorbing tires to buffer bumps, improve grip and comfort. The bent nested telescopic structure, together with the bent locking component and telescopic adjustment buckle, realizes the handlebar height adjustment and bent storage, taking into account both operation convenience and portability. The overall structure is stable, the riding is safe and comfortable, the storage volume is small, and it combines portability and practicality. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the overall unfolded portable foldable and retractable mobility scooter proposed in this utility model. Figure 2 This is a three-dimensional folding diagram of a portable foldable telescopic mobility scooter proposed in this utility model. Figure 3 This utility model proposes a one-button linkage folding mechanism for the front and rear frames of a portable, foldable, and retractable mobility scooter. Figure 1 ; Figure 4 This utility model proposes a one-button linkage folding mechanism for the front and rear frames of a portable, foldable, and retractable mobility scooter. Figure 2 .
[0017] Legend: 1. Front frame; 2. Rear frame; 3. Front wheel assembly; 4. Rear wheel assembly; 5. Handlebars; 6. Bent-and-nested telescopic structure; 61. Connecting post; 62. Bent-and-lock component; 63. Telescopic sleeve; 64. Telescopic adjustment lock; 7. Seat connector; 8. One-button linkage folding mechanism; 81. Slide rail sleeve; 82. Slide rail; 83. Adjustment slide; 84. Pull rod; 85. Tension spring; 86. Slot connecting rod; 87. Bent connecting rod; 88. Front and rear connecting rods. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a portable, foldable, and retractable mobility scooter, comprising a front frame 1, a rear frame 2, handlebars 5, and a seat connector 7. These four components together form the main support frame of the scooter, providing mounting carriers for various functional components and ensuring the overall structural stability of the scooter. A front wheel assembly 3 is fixedly connected to the outer wall of the front frame 1, serving as the steering guide for the scooter and cooperating with the rear wheel assembly 4 to achieve smooth vehicle movement. A rear wheel assembly 4 is fixedly connected to the outer wall of the rear frame 2, serving as the scooter's... The vehicle provides the main support and driving force mounting base, working in conjunction with the front wheel assembly 3 to ensure smooth riding. Both the front wheel assembly 3 and the rear wheel assembly 4 use shock-absorbing tires, which effectively buffer the impact of road bumps during riding, improving riding comfort, while also enhancing tire grip and ensuring riding safety. A bending and nesting telescopic structure 6 is set between the front frame 1 and the handlebars 5. This structure allows for height adjustment and bending for storage of the handlebars 5, balancing ease of handling during riding and portability when not in use. The telescopic structure 6 includes a connecting post 61 and a telescopic sleeve 63. The connecting post 61 and the telescopic sleeve 63 are the core supporting components of this telescopic structure. They achieve the telescopic function through nested cooperation. The outer wall of the bottom end of the connecting post 61 is fixedly connected to the leading edge of the upper surface of the front frame 1, ensuring a firm connection between the connecting post 61 and the front frame 1, providing a stable support point for the handlebars 5 and preventing wobbling during riding. The inner wall of the telescopic sleeve 63 is sleeved and connected to the outer wall of the bottom end of the handlebars 5. This sleeved connection method facilitates the sliding of the handlebars 5 up and down along the telescopic sleeve 63, achieving height adjustment. The handlebars are adjustable and easy to disassemble and maintain. A bending locking component 62 is fixedly connected between the connecting post 61 and the telescopic sleeve 63. The bending locking component 62 can bend and lock the connecting post 61 and the telescopic sleeve 63. When unlocked, the handlebars 5 can be bent to one side to reduce the storage volume. A telescopic adjustment lock 64 is fixedly connected at the top of the telescopic sleeve 63 at the connection point of the handlebars 5. The telescopic adjustment lock 64 is used to lock the height position of the handlebars 5. After adjustment, it is locked to prevent the handlebars 5 from accidentally sliding during riding and improve the safety of operation.
[0020] Reference Figures 2-4A one-button linkage folding mechanism 8 is installed between the front frame 1, the rear frame 2, and the seat connector 7. This mechanism is the core component for achieving synchronous folding of the entire vehicle. It connects and drives the front frame 1, the rear frame 2, and the seat connector 7 to work together. This mechanism can achieve synchronous linkage folding of the front frame 1, the rear frame 2, and the seat connector 7. A single operation triggers the linkage of multiple components, which is different from the traditional step-by-step folding structure. It simplifies the operation process, makes operation convenient, significantly reduces the storage volume of the scooter, and improves portability. After folding, the space occupied by the entire vehicle is significantly reduced, making it easier to store, carry, and transport. The one-button linkage folding mechanism 8 includes a slide rail sleeve 81, an adjusting slide groove 83, a slot connecting rod 86, and a bent connecting rod 87. The above components together constitute the main structure of the mechanism. The slide rail sleeve 81 is fixedly connected to the inner wall of the front frame 1 to complete the folding action. The slide rail sleeve 81 serves as a guide and support base for the slide rail 82, forming a fixed whole with the front frame 1 to ensure structural stability. The inner wall of the rear end face of the slide rail sleeve 81 is slidably connected to the slide rail 82, which can slide back and forth along the inner wall of the slide rail sleeve 81, providing guidance and support for the relative movement of the front frame 1 and the rear frame 2. The rear end face of the slide rail 82 is fixedly connected to the back of the rear frame 2, allowing the rear frame 2 to move relative to the front frame 1 with the slide rail 82. An adjustment groove 83 is formed on the inner wall of the seat connector 7, providing a movement trajectory for the pull rod 84 and limiting its sliding direction and range. The adjustment groove 83 has two... Two adjusting slides 83 are mirror-image arranged along the central axis of the seat connector 7. The symmetrical structure ensures uniform force distribution and improves the stability and reliability of the mechanism's movement. The two ends of the pull rod 84 are slidably connected to the inner walls of the two adjusting slides 83, respectively. The two ends of the pull rod 84 are embedded in the adjusting slides 83 and can slide back and forth along the adjusting slides 83 to transmit operating force. The pull rod 84 is slidably connected to the inner side of the adjusting slides 83. The pull rod 84 is the core component for the operation and locking of the mechanism. Its motion control mechanism locks and unlocks the mechanism. The pull rod 84 has a T-shaped rod structure, which facilitates operation and force application. Simultaneously, its end can precisely engage with the slot to achieve locking. A tension spring 85 is sleeved on the outer wall of the pull rod 84, providing a restoring force to the pull rod 84, ensuring that the mechanism operates normally when no external force is applied. While remaining locked, the other end of the tension spring 85 is fixedly connected to the inner wall of the seat connector 7. One end of the tension spring 85 is fixed to the seat connector 7, and the other end acts on the pull rod 84, forming an elastic reset system. The outer walls of one end of the slot connecting rod 86 and the bent connecting rod 87 are sequentially hinged to the inner wall of the bottom of the seat connector 7. Both the slot connecting rod 86 and the bent connecting rod 87 use the seat connector 7 as the hinge fulcrum to achieve rotational movement. There are two slot connecting rods 86, which are mirror images of each other along the central axis of the pull rod 84. The symmetrically arranged slot connecting rods 86 move synchronously to ensure that the locking and unlocking actions are consistent. The top outer wall of the slot connecting rod 86 has a slot, which is a locking structure that cooperates with the end of the pull rod 84. The mechanism is positioned by engaging.The inner wall of the slot is matched with the outer wall of the end of the pull rod 84. This size matching ensures a tight fit and reliable locking, preventing loosening or slippage. The inner wall of the other end of the slot connecting rod 86 is movably hinged to the upper surface of the rear frame 2. The slot connecting rod 86 is hinged to the rear frame 2, transmitting the movement of the seat connector 7 to the rear frame 2. The inner wall of the other end of the curved connecting rod 87 is movably hinged to the front and rear connecting rods 88. The curved connecting rod 87 and the front and rear connecting rods 88 are hinged to form a linkage transmission structure, transmitting motion and force. The front and rear connecting rods 88 are located away from the curved connecting rod 87. One end is hinged to the leading edge of the lower surface of the front frame 1. The front and rear connecting rods 88 are hinged to the front frame 1, transmitting the movement of the bending connecting rod 87 to the front frame 1. There are two bending connecting rods 87 and two front and rear connecting rods 88. These two bending connecting rods 87 and the front and rear connecting rods 88 are mirror images of each other along the central axis between the front frame 1 and the rear frame 2. This symmetrical connecting rod assembly ensures synchronized movement on both sides, balanced force distribution, and prevents movement jamming. Furthermore, the two bending connecting rods 87 and the front and rear connecting rods 88 are arranged one-to-one, ensuring a consistent transmission path and improving the coordination of the folding action.
[0021] Working Principle: The bicycle is based on a main support frame consisting of a front frame 1, a rear frame 2, handlebars 5, and a seat connector 7. The front wheel assembly 3, fixed to the outer wall of the front frame 1, is responsible for steering guidance, while the rear wheel assembly 4, fixed to the outer wall of the rear frame 2, provides the main support and driving force mounting base. Both use shock-absorbing tires to buffer the impact of road bumps, enhance grip, and ensure smoothness and safety during riding, providing stability for the entire bicycle. The bending and nesting telescopic structure 6 between the front frame 1 and the handlebars 5 is used to adjust the height of the handlebars 5 and fold them down for storage. When in operation, first loosen the telescopic adjustment latch 64 at the top of the telescopic lever 63, which allows the handlebars 5 to slide up and down along the inner wall of the telescopic lever 63 to adjust to a suitable height for the rider, and then lock it. The telescopic adjustment lock 64 can fix the handlebar 5 in position to prevent accidental slippage during riding. When the handlebar 5 needs to be folded, the bending lock 62 between the connecting post 61 and the telescopic sleeve 63 can be released, allowing the handlebar 5 to bend to one side and reduce the space occupied by the handlebar 5. After bending, locking the bending lock 62 will fix the bent state. The firm connection between the connecting post 61 and the front frame 1 provides stable support for the handlebar 5, preventing wobbling during adjustment and riding. The one-button linkage folding mechanism 8 between the front frame 1, the rear frame 2, and the seat connector 7 is the core of achieving synchronous folding of the entire vehicle. It has two states during operation: unfolding and locking, and folding and unlocking. In the unfolded state, the pull rod 84 is engaged with the two slots by the return spring force of the tension spring 85. The slot at the top of the connecting rod 86 matches the size of the end of the pull rod 84, ensuring a tight fit. At this time, the slot connecting rod 86, the bent connecting rod 87, and the front and rear connecting rods 88 are all locked. The slide rail 82 and the slide rail sleeve 81 work together to provide stable support for the front frame 1 and the rear frame 2, ensuring the overall structure of the bicycle is sturdy during riding. When the bicycle needs to be folded, simply pull the T-shaped pull rod 84, causing it to slide along the two mirror-shaped adjustment slots 83 on the inner wall of the seat connector 7. The pull rod 84 disengages from the slot of the slot connecting rod 86, releasing the locked state. Continuing to pull the pull rod 84 causes the slot connecting rod 86 and the bent connecting rod 87, which are hinged to it, to rotate around the hinge point at the bottom of the seat connector 7. When the slot connecting rod 86 rotates, it causes the front frame 1 to move, and the bent connecting rod 87 to rotate. When link 87 rotates, it drives the rear frame 2 to move via the front and rear connecting rods 88. Simultaneously, the slide rail 82 fixed on the back of the front frame 1 slides backward along the slide rail sleeve 81 fixed on the inner wall of the rear frame 2, bringing the front frame 1 and the rear frame 2 closer together. This achieves synchronous linkage folding of the front frame 1, the rear frame 2, and the seat connector 7. After folding, releasing the pull rod 84 causes the tension spring 85 to reset the pull rod 84, re-engaging the slot to lock the folded state. When unfolding the vehicle, repeatedly pulling the pull rod 84 releases the lock, pushing the front frame 1 and the rear frame 2 away from each other. The slide rail 82 slides forward along the slide rail sleeve 81, resetting each linkage mechanism. The pull rod 84 resets and engages under the action of the tension spring 85, completing the unfolding and locking process. The entire process triggers multiple components through a single operation, simplifying the operation procedure.The design significantly reduces the overall vehicle storage volume, facilitating storage, carrying, and transportation. The two mirror-shaped connecting rods 86, 87, and front and rear connecting rods 88 ensure synchronized movement and even force distribution among components, preventing jamming and misalignment and improving the reliability of the mechanism.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A portable, foldable, and retractable mobility scooter, comprising a front frame (1), a rear frame (2), handlebars (5), and a seat connector (7), characterized in that: The front frame (1) is fixedly connected to the outer wall of the front wheel assembly (3), the rear frame (2) is fixedly connected to the outer wall of the rear wheel assembly (4), a bent nested telescopic structure (6) is provided between the front frame (1) and the handlebars (5), and a one-button linkage folding mechanism (8) is provided between the front frame (1), the rear frame (2) and the seat connector (7). The one-button linkage folding mechanism (8) includes a slide rail sleeve (81), an adjusting slide groove (83), a slot connecting rod (86), and a bent connecting rod (87). The outer wall of the slide rail sleeve (81) is fixedly connected to the inner wall of the front frame (1). A slide rail (82) is slidably connected to the inner wall of the rear end face of the slide rail sleeve (81). The rear end face of the slide rail (82) is fixedly connected to the back of the rear frame (2). The adjusting slide groove (83) is opened on the inner wall of the seat connector (7). A pull rod (84) is slidably connected to the inner side of the adjusting slide groove (83). The pull rod (84) A tension spring (85) is fitted on the outer wall. The other end of the tension spring (85) is fixedly connected to the inner wall of the seat connector (7). The outer walls of one end of the slot connecting rod (86) and the bent connecting rod (87) are sequentially hinged to the inner wall of the bottom of the seat connector (7). The inner wall of the other end of the slot connecting rod (86) is hinged to the upper surface of the rear frame (2). The inner wall of the other end of the bent connecting rod (87) is hinged to the front and rear connecting rods (88). The end of the front and rear connecting rods (88) away from the bent connecting rod (87) is hinged to the front edge of the lower surface of the front frame (1).
2. The portable foldable and retractable mobility scooter according to claim 1, characterized in that: Two adjustment slides (83) are provided, and the two adjustment slides (83) are mirrored along the central axis of the seat connector (7), and the two ends of the pull rod (84) are slidably connected to the inner walls of the two adjustment slides (83).
3. A portable, foldable, and retractable mobility scooter according to claim 1, characterized in that: The tie rod (84) has a T-shaped rod structure.
4. A portable, foldable, and retractable mobility scooter according to claim 1, characterized in that: Two slot connecting rods (86) are provided, and the two slot connecting rods (86) are mirrored along the central axis of the pull rod (84). The top outer wall of the slot connecting rod (86) is provided with a slot, wherein the inner wall of the slot is adapted to the size of the end outer wall of the pull rod (84).
5. A portable, foldable, and retractable mobility scooter according to claim 1, characterized in that: Two of each of the bending connecting rods (87) and the front and rear connecting rods (88) are provided. The two bending connecting rods (87) and the front and rear connecting rods (88) are mirrored along the central axis between the front frame (1) and the rear frame (2), and the two bending connecting rods (87) and the front and rear connecting rods (88) are provided in a one-to-one correspondence.
6. A portable, foldable, and retractable mobility scooter according to claim 1, characterized in that: The bent nested telescopic structure (6) includes a connecting column (61) and a telescopic sleeve (63). The outer wall of the bottom end of the connecting column (61) is fixedly connected to the front edge of the upper surface of the front frame (1), and the inner wall of the telescopic sleeve (63) is sleeved and connected to the bottom outer wall of the handlebar (5).
7. A portable, foldable, and retractable mobility scooter according to claim 6, characterized in that: A bending locking member (62) is fixedly connected between the connecting post (61) and the telescopic sleeve (63), and a telescopic adjustment buckle (64) is fixedly connected at the top of the telescopic sleeve (63) at the connection point of the handlebar (5).
8. A portable, foldable, and retractable mobility scooter according to claim 1, characterized in that: Both the front wheel assembly (3) and the rear wheel assembly (4) use shock-absorbing tires.