Three-wheel scooter

Abstract

A three-wheel scooter comprises a front wheel assembly, a steering control assembly, a wheel carrier, a seat, a pair of rear wheel assemblies and a folding structure. The wheel carrier comprises a wheel carrier front section and a wheel carrier rear section which are in swinging connection through a folding and unfolding rotating shaft; the folding structure comprises a folding and unfolding in-place limiting block, a folding and unfolding pin, a folding operation piece, a folding pulling piece, a linkage pin and a folding and unfolding pin reset spring. The folding operation piece and the folding pulling piece are connected together through the linkage pin after being arranged on the outer wall and an inner hole of the rear section of the wheel carrier in a sleeved mode respectively. A collection and exhibition pin guide groove and a linkage pin guide groove for guiding the collection and exhibition pin and the linkage pin to slide in the axial direction respectively are formed in the rear section of the wheel carrier; the two ends of the folding and exhibition pin are exposed out of the folding and exhibition pin guide groove in the rear section of the wheel carrier and then can slide along the pin sliding face and slide into one of the unfolding in-place groove and the folding in-place groove. During folding or unfolding, the operation outer sleeve is pulled to drive the folding and unfolding pin to slide away from the unfolding in-place groove or the folding in-place groove of the folding and unfolding in-place limiting block, and then folding or unfolding can be achieved. The folding operation is simpler and more convenient.

Description

Technical Field

[0001] The utility model relates to a sliding vehicle for children to play with. Background Art

[0002] The balance bikes usually used by children aged two to four are three-wheeled (one front wheel and two rear wheels) and are relatively stable. Some of these three-wheeled balance bikes have non-foldable rear wheels, while others can be folded toward the front wheels. Foldable balance bikes are more popular because they are easy to carry and store. Currently, foldable balance bikes are either still loose when folded and easily unfold automatically, making them inconvenient to lift; or they are somewhat cumbersome to fold or unfold (for example, the bolts must be loosened before folding or unfolding, and the bolts must be tightened again after folding or unfolding).

[0003] Therefore, the applicant has invented a three-wheeled balance vehicle with simpler folding operation. Summary of the invention

[0004] The utility model aims to overcome the shortcomings of the prior art and provide a three-wheeled scooter with simpler and more convenient folding operation.

[0005] In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

[0006] A three-wheeled scooter comprises a front wheel assembly, a steering assembly, a wheel frame, a seat, a pair of rear wheel assemblies, and a folding structure, wherein:

[0007] The front wheel assembly comprises a front wheel and a front wheel axle;

[0008] The steering control assembly includes a T-shaped handlebar, handles connected to both sides of the upper end of the handlebar, and an inverted U-shaped wheel fork connected to the lower end of the handlebar; the front wheel axle is arranged on the wheel fork;

[0009] The wheel frame comprises a wheel frame front section and a wheel frame rear section which are swingably connected via a retracting and unfolding rotating shaft; a steering sleeve is provided at the front end of the wheel frame front section for the handlebar to turn left and right;

[0010] The seat is mounted and fixed on the upper end of the rear portion of the front section of the wheel frame;

[0011] A pair of rear wheel axles of the rear wheel assembly are connected to the tail end of the rear section of the wheel frame;

[0012] The folding structure comprises a folding and extending position limit block, a folding and extending pin, a folding operating member, a folding pulling member, a linkage pin and a folding and extending pin reset spring; the folding and extending position limit block is installed and fixed to the lower part of the tail of the front section of the wheel frame, and an arc-shaped pin sliding surface and an expansion position groove and a folding position groove on both sides of the pin sliding surface are provided on its lower surface; the rear section of the wheel frame is inserted into the folding and extending position limit block and is swung and connected together by the folding and extending rotating shaft; the folding operating member and the folding pulling member are respectively sleeved on The outer wall and the inner hole of the rear section of the wheel frame are connected together by a linkage pin; a retractable pin guide groove and a linkage pin guide groove are provided on the rear section of the wheel frame to provide guidance for the axial sliding of the retractable pin and the linkage pin respectively; after the two ends of the retractable pin are exposed from the retractable pin guide groove of the rear section of the wheel frame, they can slide along the pin sliding surface and slide into one of the expansion-to-position groove and the folding-to-position groove; the retractable pin reset spring is provided in the rear section of the wheel frame to reset the retractable pin toward the axial direction of the retractable shaft.

[0013] In the improvement scheme of the above-mentioned three-wheeled balance vehicle, the folding structure also includes a swing wheel for the front end of the rear section of the wheel frame to be inserted into; the swing wheel is arranged in the folding and extending position limit block; and an avoidance groove is provided on the swing wheel to avoid the folding and extending pin.

[0014] In an improvement to the above-mentioned three-wheeled balance vehicle, the retracting and unfolding pin reset spring is a tension spring, and its two ends are respectively hooked on the retracting and unfolding shaft and the retracting and unfolding pin.

[0015] Compared with the prior art, the utility model has the following beneficial effects: since the wheel frame includes a wheel frame front section and a wheel frame rear section that are swingably connected by a folding and unfolding shaft, and the folding structure includes a folding and unfolding position limit block, a folding and unfolding pin, a folding operating member, a folding pulling member, a linkage pin and a folding and unfolding pin reset spring, when folding or unfolding, the front section and the rear section of the wheel frame can be swung to fold or unfold by pulling the operating jacket to drive the folding and unfolding pin to slide away from the unfolding position slot or the folding position slot of the folding and unfolding position limit block. Therefore, the folding operation of the utility model is simpler and more convenient.

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments: BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model Figure 1 (Expanded state);

[0018] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the utility model Figure 2 (folded state);

[0019] Figure 3 It is a schematic diagram of disassembly and assembly of some components of an embodiment of the utility model;

[0020] Figure 4 The structure of the embodiment of the utility model is schematically shown Figure 1 (Expanded state);

[0021] Figure 5 yes Figure 4 AA section view;

[0022] Figure 6 This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 (Folded state) DETAILED DESCRIPTION

[0023] The utility model is a three-wheeled sliding vehicle. Figures 1 to 6 As shown, it includes a front wheel assembly 1, a steering assembly 2, a wheel frame 3, a seat 4, a pair of rear wheel assemblies 5, and a folding structure 6, wherein:

[0024] The front wheel assembly 1 comprises a front wheel and a front wheel axle;

[0025] The steering control assembly 2 includes a T-shaped handlebar 21, handlebars 22 connected to both sides of the upper end of the handlebar 21, and an inverted U-shaped wheel fork 23 connected to the lower end of the handlebar 21; the front wheel axle is arranged on the wheel fork 23;

[0026] The wheel frame 3 comprises a wheel frame front section 32 and a wheel frame rear section 33 which are swingably connected via a retracting and unfolding rotating shaft 31; a steering sleeve 34 is provided at the front end of the wheel frame front section 32 for the handlebar 21 to turn left and right;

[0027] The seat 4 is mounted and fixed on the upper end of the rear portion of the front section 32 of the wheel frame;

[0028] A pair of rear wheel axles of the rear wheel assembly 5 are connected to the rear end of the wheel frame rear section 33;

[0029] The folding structure 6 includes a folding and extending position limit block 61, a folding and extending pin 62, a folding operating member 63, a folding pull member 64, a linkage pin 65 and a folding and extending pin return spring 66; the folding and extending position limit block 61 is installed and fixed to the lower tail of the front section 32 of the wheel frame, and an arc-shaped pin sliding surface 611 (with the folding and extending shaft as the center) and an expansion position groove 612 and a folding position groove 613 located on both sides of the pin sliding surface 611 are provided on its lower surface; the rear section 33 of the wheel frame is inserted into the folding and extending position limit block 61 and then swung together with the folding and extending shaft 31; the folding operating member 63 and the folding pull member 64 are connected together by ... pin return spring 66; the folding and extending position limit block 61 is installed and fixed to the lower tail of the front section 32 of the wheel frame, and an arc-shaped pin sliding surface 611 (with the folding and extending shaft as the center) and an expansion position groove 612 and a folding position groove 613 are provided on its lower surface; the rear section 33 of the wheel frame is inserted into the folding and extending position limit block 61 4 are respectively sleeved on the outer wall and the inner hole of the wheel frame rear section 33 and connected together through the linkage pin 65; the wheel frame rear section 33 is provided with a retracting and unfolding pin guide groove 331 and a linkage pin guide groove 332 for providing guidance for the retracting and unfolding pin 62 and the linkage pin 65 in axial sliding; the two ends of the retracting and unfolding pin 62 are exposed from the retracting and unfolding pin guide groove 331 of the wheel frame rear section 33 and can slide along the pin sliding surface 611 and slide into one of the unfolding and closing position groove 612 and the retracting and closing position groove 613; the retracting and unfolding pin reset spring 66 is arranged in the wheel frame rear section 33 to reset the retracting and unfolding pin 62 to the axial direction of the retracting and unfolding rotating shaft 31.

[0030] Figure 1 , 4 The figure shows the state of the scooter being unfolded for use, at which time, the folding pin 62 slides into the unfolding slot 612 of the folding and unfolding position limit block 61. When it is to be folded, the folding operating member 63 is pulled downward, so that it drives the folding and unfolding pin 62 to slide away from the unfolding slot 612 of the folding and unfolding position limit block 61 through the linkage pin 65 and the folding puller 64. When it leaves the unfolding slot 612, the rear section 33 of the wheel frame can be swung slightly toward the front section 32 of the wheel frame. At this time, the folding operating member 63 is released, and the folding and unfolding pin 62 continues to slide along the pin sliding surface 611. When the folding and unfolding pin 62 slides into the folding and unfolding slot 613, the scooter is folded; in the folded state, it will not be automatically unfolded when the scooter is taken out, so it is convenient to carry. Similarly, when the folded balance bike is to be unfolded for use, the folding operating member 63 is pulled downward, so that it drives the folding and unfolding pin 62 to slide away from the folding and unfolding slot 613 of the folding and unfolding limit block 61 through the linkage pin 65 and the folding pulling member 64. When leaving the folding and unfolding slot 613, the rear section 33 of the wheel frame can be swung slightly away from the front section 32 of the wheel frame to unfold. At this time, the folding and unfolding operating member 63 is released, and the folding and unfolding pin 62 continues to slide along the pin sliding surface 611 until the folding and unfolding pin 62 slides into the unfolding slot 612, and the folding and unfolding bike is unfolded.

[0031] As can be seen from the above, when the utility model is folded or unfolded, the folding operating member 63 is pulled to drive the folding and unfolding pin 62 to slide away from the unfolding groove 612 or the folding groove 613 of the folding and unfolding limit block 61, so that the front section 32 of the wheel frame and the rear section 33 of the wheel frame can be swung to fold or unfold. Therefore, the folding operation of the utility model is simpler and more convenient.

[0032] In this embodiment, the folding structure 6 also includes a swing wheel 67 for the front end of the wheel frame rear section 33 to be inserted into; the swing wheel 67 is arranged in the folding and unfolding limit block 61, so that it can avoid pinching the hands during the folding and unfolding operation, and can reduce the shaking of the wheel frame rear section 33 to make the folding and unfolding of the balance vehicle more stable and smooth; the swing wheel 67 is provided with an avoidance groove 671 to avoid the folding and unfolding pin 62.

[0033] In this embodiment, the retracting and unfolding pin reset spring 66 is a tension spring, and its two ends are respectively hooked on the retracting and unfolding shaft 31 and the retracting and unfolding pin 62; of course, the retracting and unfolding pin reset spring 66 can also be a compression spring, etc., as long as it can make the retracting and unfolding pin generate elastic force to move in the direction of the retracting and unfolding shaft.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the conventional installation orientation of the product, or the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A three-wheeled scooter, comprising a front wheel assembly, a steering assembly, a wheel frame, a seat, a pair of rear wheel assemblies, and a folding structure, characterized in that: The front wheel assembly comprises a front wheel and a front wheel axle; The steering control assembly includes a T-shaped handlebar, handles connected to both sides of the upper end of the handlebar, and an inverted U-shaped wheel fork connected to the lower end of the handlebar; the front wheel axle is arranged on the wheel fork; The wheel frame comprises a wheel frame front section and a wheel frame rear section which are swingably connected via a retracting and unfolding rotating shaft; a steering sleeve is provided at the front end of the wheel frame front section for the handlebar to turn left and right; The seat is mounted and fixed on the upper end of the rear portion of the front section of the wheel frame; A pair of rear wheel axles of the rear wheel assembly are connected to the tail end of the rear section of the wheel frame; The folding structure includes a folding and unfolding position limit block, a folding and unfolding pin, a folding operating member, a folding pulling member, a linkage pin and a folding and unfolding pin reset spring; The retractable and extended position limit block is installed and fixed to the lower part of the tail of the front section of the wheel frame, and an arc-shaped pin sliding surface and an expansion position groove and a folding position groove are provided on its lower surface; after the rear section of the wheel frame is inserted into the retractable and extended position limit block, it is swung and connected together by the retractable and extended rotating shaft; the folding operating member and the folding pulling member are respectively sleeved on the outer wall and the inner hole of the rear section of the wheel frame and are connected together by a linkage pin; a retractable and extended pin guide groove and a linkage pin guide groove are provided on the rear section of the wheel frame to provide guidance for the axial sliding of the retractable and extended pin and the linkage pin respectively; after the two ends of the retractable and extended pin are exposed from the retractable and extended pin guide groove of the rear section of the wheel frame, they can slide along the pin sliding surface and slide into one of the expansion position groove and the folding position groove; the retractable and extended pin reset spring is provided in the rear section of the wheel frame to reset the retractable and extended pin toward the axial direction of the retractable and extended rotating shaft.

2. The three-wheeled balancing vehicle according to claim 1, characterized in that: The folding structure also includes a swing wheel for the front end of the rear section of the wheel frame to be inserted into; the swing wheel is arranged in the folding and unfolding position limit block; and an avoidance groove is provided on the swing wheel to avoid the folding and unfolding pin.

3. The three-wheeled balancing vehicle according to claim 1 or 2, characterized in that: The retracting and unfolding pin reset spring is a tension spring, and its two ends are respectively hooked on the retracting and unfolding rotating shaft and the retracting and unfolding pin.

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