Motorcycle type three-wheel baby carriage with one-key folding mechanism

Abstract

The utility model belongs to the field of three-wheel baby carriages, and particularly relates to a motorcycle type three-wheel baby carriage with a one-key folding mechanism. A supporting plate is fixedly connected to the top of the equipment compartment, a trapezoidal plate is fixedly connected to one end of the supporting plate, two semicircular grooves are formed in the two sides of the trapezoidal plate, movable assemblies are arranged in the semicircular grooves, and a connecting plate A and a connecting plate B are connected to the bottoms of the movable assemblies; through the elastic positioning design of a limiting bead and a steering hole of the movable assembly, the stepless adjustment function of the rear wheel distance is achieved, when a connecting plate A and a connecting plate B are pressed, a circular block drives the limiting bead to be disengaged from the steering hole, when the circular block rotates in a fixing ring, the limiting bead is embedded into the steering hole through the elastic force of a spring A, and the rear wheel distance is changed every time the circular block rotates by a certain angle; according to the technical scheme, switching between a three-wheel stable running mode and a two-wheel learning mode is achieved, the distance between the rear wheels is adjusted to the two-wheel or three-wheel mode, the problem that a traditional tricycle cannot meet the two-wheel learning requirement is solved, and the flexibility of a baby carriage using scene is improved.

Description

Technical Field

[0001] This utility model relates to the field of tricycles for children, specifically a motorcycle-style tricycle for children with a one-click folding mechanism. Background Technology

[0002] A tricycle is a wheeled vehicle designed for one or more children to ride in. Its wheels should form a triangular or trapezoidal contact point with the ground, and it is propelled solely by human power, using foot pedals. This type of vehicle is commonly referred to as a children's tricycle.

[0003] In the prior art, such as in publication number CN202703790U, a multi-functional tricycle for children is disclosed. It includes a single-ride tricycle frame, handlebars, and a child seat. The single-ride tricycle frame has handlebars at the front end, a front wheel at the lower front end, pedals on both sides of the front wheel, and an upward-sloping push-pull rod on the handlebars. The rear end of the single-ride tricycle frame is fixedly connected to the pedals, which are fixed to a shaft. The two ends of the shaft are connected to the rear wheels on both sides via bearings. A child seat facing the pedals is fixed to the upper rear part of the single-ride tricycle frame.

[0004] While the aforementioned patent is economical and practical, versatile, and multifunctional—serving as both a stroller and a tricycle, representing a significant innovation in children's vehicles—the two rear wheels of the tricycle have a fixed distance between them. Furthermore, children cannot learn to ride a two-wheeled vehicle while using it, reducing its adaptability. Additionally, it occupies a large space when not in use, making storage inconvenient. Therefore, to address these issues, a motorcycle-style tricycle with a one-click folding mechanism is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, which prevent children from learning to ride two-wheeled vehicles and reduce adaptability, and which take up a lot of space when not in use, leading to inconvenient storage, this utility model proposes a motorcycle-style tricycle for children with a one-click folding mechanism.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The motorcycle-style tricycle with a one-click folding mechanism of this utility model includes an equipment compartment; a support plate is fixedly connected to the top of the equipment compartment, a trapezoidal plate is fixedly connected to one end of the support plate, two semi-circular grooves are opened on both sides of the trapezoidal plate, and movable components are arranged inside the semi-circular grooves. The bottom of the movable components is connected to a connecting plate A and a connecting plate B. A rear wheel is arranged at one end of the connecting plate A and the connecting plate B, and a folding component is fixedly connected to the other end of the support plate; the movable component includes a fixing ring, a circular block, a spring A, and a limiting bead, and the fixing ring is sleeved in the semi-circular groove. The circular block is fitted inside the fixing ring. An A-hole is formed on the outer wall of the circular block. One end of the A-spring is fixed inside the A-hole, and the other end is connected to a limiting bead. Several turning holes are arranged in a circular array on the inner wall of the fixing ring. The limiting bead is engaged inside the turning holes. The bottom of the circular block is connected to either the A-connecting plate or the B-connecting plate via a connecting block. The folding assembly includes a sleeve, a T-bar, a B-spring, and a limiting post. The sleeve is fixed to the other end of the support plate, and the T-bar is movably connected inside it. B-holes are formed at both ends of the T-bar. The B-spring is located inside the B-holes. The limiting post is connected to the top of the B-spring and engaged inside the limiting hole of the sleeve.

[0007] Preferably, one end of the T-bar is fixedly connected to a steering block, the steering block is movably connected to a faucet, a front wheel is provided at the bottom of the faucet, and a handle is provided at the top of the faucet.

[0008] Preferably, a pad is provided on the top of the support plate, and a seat cushion is provided on the top of the pad.

[0009] Preferably, the diameter of the steering hole is adapted to the diameter of the limiting bead, and the limiting bead is embedded in the steering hole under the elastic force of spring A to form a gear positioning.

[0010] Preferably, the limiting holes of the sleeve are arranged in multiple rows, and the limiting post is disengaged from the limiting hole by pressing the B spring to achieve the sliding folding of the T-shaped rod.

[0011] Preferably, an arc-shaped groove is formed on one side of the sleeve, and the T-shaped rod slides along the arc of the arc-shaped groove to adjust the folding angle.

[0012] The advantages of this utility model are:

[0013] 1. This utility model achieves stepless adjustment of the rear wheel spacing through the elastic positioning design of the limiting bead and steering hole of the movable component. When the A connecting plate and the B connecting plate are pressed, the circular block drives the limiting bead to disengage from the steering hole. When the circular block rotates in the fixed ring, the limiting bead is embedded into the steering hole by the elastic force of the A spring. The rear wheel spacing changes with each rotation of a certain angle, realizing the switching between three-wheel stable driving mode and two-wheel learning mode. Adjusting the rear wheel spacing to two-wheel or three-wheel mode solves the problem that traditional tricycles cannot adapt to two-wheel learning needs and improves the flexibility of the children's vehicle in use scenarios.

[0014] 2. This utility model achieves the quick folding and storage function of the vehicle body through the one-button pressing design of the limiting post and B spring of the folding component. After pressing the limiting post, the T-shaped rod slides along the arc groove of the sleeve to the folding position. When the limiting post is released, it is locked into the limiting hole under the action of the B spring. After folding, the handlebars and front wheels fit against the vehicle body, greatly reducing the space occupied and solving the problem of large space occupation of traditional children's vehicles, thus optimizing the convenience of storage. Attached Figure Description

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

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the equipment compartment structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the folding component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the steering component structure of this utility model.

[0020] In the diagram: 1. Equipment compartment; 2. Support plate; 3. Trapezoidal plate; 4. Movable component; 41. Fixing ring; 42. Circular block; 43. Hole A; 44. Spring A; 45. Limiting bead; 46. Connecting block; 47. Steering hole; 5. Connecting plate A; 6. Connecting plate B; 7. Rear wheel; 8. Folding component; 81. Sleeve; 82. Arc groove; 83. T-bar; 84. Hole B; 85. Spring B; 86. Limiting post; 87. Limiting hole; 9. Steering block; 10. Head; 11. Front wheel; 12. Handle; 13. Pad; 14. Seat cushion. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] Please see Figures 1-4 As shown, a motorcycle-style tricycle with a one-button folding mechanism includes an equipment compartment 1; a support plate 2 is fixedly connected to the top of the equipment compartment 1, and a trapezoidal plate 3 is fixedly connected to one end of the support plate 2. Two semi-circular grooves are opened on both sides of the trapezoidal plate 3, and movable components 4 are set inside the semi-circular grooves. The bottom of the movable components 4 is connected to a connecting plate A 5 and a connecting plate B 6. A rear wheel 7 is set at one end of the connecting plate A 5 and the connecting plate B 6. A folding component 8 is fixedly connected to the other end of the support plate 2; the movable component 4 includes a fixing ring 41, a circular block 42, a spring A 44, and a limiting bead 45. The fixing ring 41 is fitted inside the semi-circular groove, and the circular block 42 is fitted inside the fixing ring 41. A spring A 45 is opened on the outer wall of the circular block 42. Hole 43, one end of spring 44 is fixed inside hole 43, and the other end is connected to limit bead 45. Several turning holes 47 are opened in a ring array on the inner wall of the fixing ring 41. Limit bead 45 is snapped into the inside of turning hole 47. The bottom of circular block 42 is connected to connecting plate 5 or connecting plate 6 through connecting block 46. Folding assembly 8 includes sleeve 81, T-rod 83, spring 85 and limit post 86. Sleeve 81 is fixed to the other end of support plate 2. T-rod 83 is movably connected inside it. B holes 84 are opened at both ends of T-rod 83. Spring 85 is set inside B holes 84. Limit post 86 is connected to the top of spring 85 and snapped into the limit hole 87 of sleeve 81.

[0023] During operation, the fixing ring 41 of the active component 4 is embedded in the semi-circular groove of the trapezoidal plate 3. When the circular block 42 rotates within the fixing ring 41, the spring A 44 pushes the limiting bead 45 into the steering hole 47 to form a segmented positioning. The connecting block 46 drives the connecting plate A 5 or the connecting plate B 6 to adjust the distance between the rear wheels 7. The T-shaped rod 83 of the folding component 8 slides within the sleeve 81. After pressing the limiting post 86 to compress the spring B 85, ​​it disengages from the limiting hole 87. The T-shaped rod 83 slides along the arc groove 82 to fold the faucet 10 and the front wheel 11. The stepless adjustment of the distance between the rear wheels 7 is achieved through the elastic positioning of the limiting bead 45 and the steering hole 47, solving the problem of switching between three-wheeled and two-wheeled modes. The one-button press folding design optimizes storage efficiency.

[0024] Furthermore, one end of the T-shaped bar 83 is fixedly connected to the steering block 9, the steering block 9 is movably connected to the faucet 10, the faucet 10 is provided with a front wheel 11 at the bottom and a handle 12 at the top of the faucet 10.

[0025] When in operation, the T-shaped bar 83 is fixedly connected to the steering block 9, and the steering block 9 is movably connected to the handlebar 10 through the hinge shaft. When the handlebar 12 is turned, the handlebar 10 drives the front wheel 11 to turn left and right. The hinge structure of the steering block 9 enables the front wheel 11 to be flexibly controlled, which solves the problem of stiff steering in traditional children's bicycles and improves the children's riding experience.

[0026] Furthermore, a pad 13 is provided on the top of the support plate 2, and a seat cushion 14 is provided on the top of the pad 13;

[0027] During operation, a high-elasticity sponge pad 13 is bonded to the top of the support plate 2, and the seat 14 is fixed to the top of the pad 13 by bolts. The surface of the seat 14 is covered with breathable and non-slip fabric. The pad 13 cushions the rigid impact of the support plate 2, solving the problem of discomfort in the buttocks during riding and improving riding comfort.

[0028] Furthermore, the diameter of the steering hole 47 is adapted to the diameter of the limiting bead 45, and the limiting bead 45 is embedded in the steering hole 47 under the elastic force of spring A 44 to form a gear positioning.

[0029] During operation, the diameter of the steering hole 47 is slightly larger than the diameter of the limit bead 45, such as an 8mm hole diameter and a 7.5mm bead diameter. When the spring A 44 is compressed, the limit bead 45 exits the steering hole 47. After rotating the circular block 42, the limit bead 45 springs into the next steering hole 47. The precise fit between the steering hole 47 and the limit bead 45 provides clear gear feedback, solves the problem of inaccurate positioning when adjusting the distance, and enhances the operating feel.

[0030] Furthermore, the limiting holes 87 of the sleeve 81 are arranged in multiple rows, and the limiting post 86 disengages from the limiting hole 87 by pressing the B spring 85 to achieve the sliding folding of the T-shaped rod 83;

[0031] During operation, the limiting holes 87 of the sleeve 81 are distributed in multiple rows along the axial and radial directions. After pressing the limiting posts 86 on both sides, the T-shaped rod 83 can slide to the folded or unfolded position. After releasing, the limiting posts 86 are locked into the corresponding holes. The multiple rows of limiting holes 87 realize multi-level locking of the folding angle, which solves the problem of loose structure after folding and ensures storage stability.

[0032] Furthermore, an arc-shaped groove 82 is provided on one side of the sleeve 81, and the T-shaped rod 83 slides along the arc of the arc-shaped groove 82 to adjust the folding angle;

[0033] During operation, the arc of the sleeve 81's arc groove 82 matches the folding trajectory, such as a 90° arc. When the T-shaped rod 83 slides along the arc groove 82, the head 10 and the front wheel 11 move closer to the support plate 2 and fold. The arc groove 82 guides the folding path to be precisely aligned, solving the problem of component interference during folding and optimizing the compactness after folding.

[0034] Working principle: When the circular block 42 of the active component 4 rotates within the fixed ring 41, the A spring 44 pushes the limiting bead 45 to embed into the steering hole 47 for positioning. The connecting block 46 drives the A connecting plate 5 and the B connecting plate 6 to adjust the distance between the rear wheels 7 to achieve three-wheel / two-wheel mode switching. Pressing the limiting post 86 of the folding component 8 compresses the B spring 85, causing it to disengage from the limiting hole 87 of the sleeve 81. The T-shaped rod 83 slides along the arc groove 82 to fold the faucet 10 and the front wheel 11. The steering block 9 hinges to the faucet 10 to achieve steering control. The seat cushion 14 provides cushioning support for the child to ride through the pad block 13.

[0035] The above are merely preferred embodiments of the present utility model and are 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, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A motor tricycle pram with a one key folding mechanism characterised in that: Including equipment cabin (1), the top of the equipment cabin (1) is fixedly connected with a support plate (2), one end of the support plate (2) is fixedly connected with a trapezoidal plate (3), two semicircular grooves are formed in the two sides of the trapezoidal plate (3), and a movable assembly (4) is arranged in each semicircular groove, the bottom of the movable assembly (4) is connected with an A connecting plate (5) and a B connecting plate (6), and rear wheels (7) are arranged at one end of the A connecting plate (5) and the B connecting plate (6); the other end of the support plate (2) is fixedly connected with a folding assembly (8); The movable assembly (4) comprises a fixed ring (41), a circular block (42), an A spring (44) and a limiting bead (45), the fixed ring (41) is sleeved in the semicircular groove, the circular block (42) is sleeved in the fixed ring (41), an A hole (43) is formed in the outer wall of the circular block (42), one end of the A spring (44) is fixed in the A hole (43), the other end of the A spring (44) is connected with the limiting bead (45), a plurality of steering holes (47) are formed in the inner wall of the fixed ring (41) in an annular array, and the limiting bead (45) is clamped in the steering hole (47); the bottom of the circular block (42) is connected with the A connecting plate (5) or the B connecting plate (6) through a connecting block (46); The folding assembly (8) comprises a sleeve (81), a T-shaped rod (83), a B spring (85) and a limiting column (86), the sleeve (81) is fixed at the other end of the support plate (2), the T-shaped rod (83) is movably connected in the sleeve (81), B holes (84) are formed in the two ends of the T-shaped rod (83), the B spring (85) is arranged in the B hole (84), and the limiting column (86) is connected to the top of the B spring (85) and clamped in the limiting hole (87) of the sleeve (81).

2. The motorcycle trike child's vehicle with one-key folding mechanism according to claim 1, characterized in that: One end of the T-shaped rod (83) is fixedly connected with a steering block (9), the steering block (9) is movably connected with a faucet (10), the faucet (10) is provided with front wheels (11) at the bottom, and the faucet (10) is provided with a handle (12) at the top.

3. The motorcycle trikes child with one key folding mechanism according to claim 1, characterized in that: A cushion block (13) is arranged on the top of the support plate (2), and a seat cushion (14) is arranged on the top of the cushion block (13).

4. The motorcycle trikes child with one key folding mechanism according to claim 1, characterized in that: The aperture of the steering hole (47) is matched with the diameter of the limiting bead (45), and the limiting bead (45) is embedded in the steering hole (47) under the elastic force of the A spring (44) to form a stepped positioning.

5. The motorcycle trike child carrier with one-key folding mechanism according to claim 1, characterized in that: The limiting holes (87) of the sleeve (81) are distributed in multiple rows, and the limiting column (86) is separated from the limiting hole (87) by pressing the B spring (85) to realize the sliding folding of the T-shaped rod (83).

6. The motorcycle trikes child with one key folding mechanism according to claim 1, characterized in that: An arc-shaped groove (82) is formed in one side of the sleeve (81), and the T-shaped rod (83) slides along the arc of the arc-shaped groove (82) to adjust the folding angle.

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