Anti-rollover child tricycle

Abstract

The anti-rollover child tricycle comprises a base, one side of the base is rotationally connected with a rotating rod in a penetrating mode, the upper end of the rotating rod is connected with a hand-held handle, and the lower end of the rotating rod is connected with a front wheel. According to the rollover prevention child tricycle, the rack generates resistance to the full gear and the rotating rod in the process of pushing the hydraulic oil, rapid and large-amplitude rotation of the handle is limited, and the rollover risk caused by excessive steering is avoided. According to the linkage mechanism between the structures, the rollover risk is comprehensively reduced from the aspects of gravity center adjustment, wheel tread increase, resistance application and the like, the safety and stability of the child tricycle are remarkably improved, and a safer and more reliable riding environment is provided for children.

Description

Technical Field

[0001] This utility model relates to the field of children's tricycle technology, specifically to an anti-tipping children's tricycle. Background Technology

[0002] Children's tricycles, as a common children's toy and means of transportation, are widely used for children's entertainment and exercise. They usually consist of three wheels, a seat, a handlebar, and pedals. Children propel the vehicle forward by pedaling. However, existing children's tricycles have certain safety hazards during use, especially the problem of tipping over. This not only affects children's riding experience but may also threaten their safety.

[0003] Existing children's tricycles have several design flaws that contribute to rollovers. First, their high and rearward center of gravity makes them prone to losing balance during turns, especially at high speeds, where centrifugal force further exacerbates the tilt, leading to a rollover. Second, tricycles with narrow wheelbases and track widths have limited support area and poor stability, making them more susceptible to tilting when encountering uneven surfaces or lateral forces.

[0004] In addition, existing steering systems are usually quite simple and lack steering limits, making it easy for children to oversteer when operating them, especially at high speeds, which can cause the vehicle to lose balance and overturn.

[0005] To address the aforementioned issues, there is an urgent need for innovative designs based on existing children's tricycles. Utility Model Content

[0006] This utility model addresses the problem that existing technical solutions are too simplistic by providing a significantly different solution for an anti-tipping children's tricycle, thus resolving the issues raised in the background section.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-tipping children's tricycle, including a base, a rotating rod rotatably connected through one side of the base, a handle for holding the handle connected to the upper end of the rotating rod, and a front wheel connected to the lower end of the rotating rod. A linkage resistance structure is provided between the outer wall of the rotating rod and the base, and a center of gravity adjustment structure is connected to the linkage resistance structure. The center of gravity adjustment structure is opened inside the base, a rear wheel is connected to the center of gravity adjustment structure, and a seat is installed on the top of the base.

[0008] Preferably, the base is viewed from above as a convex structure, and the diameter of the front wheel is larger than that of the rear wheel.

[0009] Preferably, the linkage resistance structure includes a full gear, a left rack, a right rack, a left chamber, and a right chamber. The outer wall of the rotating rod is connected to the full gear in the area between the base and the front wheel, and the left rack and right rack are respectively meshed on both sides of the full gear. The ends of the left rack and right rack are respectively located in the corresponding left chamber and right chamber, and the left chamber and right chamber are opened in the base.

[0010] Preferably, both the left and right racks are configured with a "T" shape, and the "T"-shaped ends of the left and right racks located in the left and right chambers are configured with piston structures.

[0011] Preferably, the center of gravity adjustment structure includes a first flow channel, a second flow channel, a left pressure chamber, a right pressure chamber, and a piston connecting rod. The first flow channel and the second flow channel are respectively opened in the base, and the first flow channel and the second flow channel are respectively connected to the left pressure chamber and the right pressure chamber. The left pressure chamber and the right pressure chamber are respectively opened on both sides of the base. A piston connecting rod is connected to each of the left pressure chamber and the right pressure chamber. The end of the piston connecting rod passes through both sides of the base and is connected to a rear wheel. The rear wheels are slidably installed with the base.

[0012] Preferably, the first flow channel and the second flow channel are not connected to each other, and the first flow channel and the second flow channel are arranged in an "X" shape when viewed from above.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the anti-tipping children's tricycle achieves a significant anti-tipping effect through the linkage resistance structure and the center of gravity adjustment structure, effectively solving the side-tipping safety hazards existing in the use of existing children's tricycles, and greatly improving the safety and stability of children riding.

[0014] During riding, the child sits on the seat, holds the handlebars with both hands, and rides on the pedals on both sides of the front wheel. Because the left chamber, right chamber, first flow channel, and second flow channel are located in the middle area of ​​the base, the hydraulic oil and weight inside them cause the center of gravity of the base to be located in the middle area of ​​the base. This provides a certain degree of stability to the tricycle in the initial state and reduces the possibility of tipping over.

[0015] When the child control handle is turned to the left, the rotating rod drives the full gear to rotate clockwise, causing the left and right racks, which are meshed on both sides of the full gear, to move in opposite directions. The left rack moves into the left chamber, squeezing the hydraulic oil in the left chamber and forcing it into the right pressure chamber through the first flow channel. This increases the weight on the right side of the base, shifting the center of gravity to the right. Simultaneously, the hydraulic oil entering the right pressure chamber pushes the piston connecting rod outward from the right side of the base, further pushing the rear wheel connected to the right side away from the base, increasing the wheelbase and track width. This series of actions not only prevents tipping by changing the center of gravity but also further enhances the tricycle's stability by increasing the wheelbase, effectively avoiding tipping due to instability in the base's center of gravity and the right side lifting up when turning left. When turning right, the principle is the same: the center of gravity shifts to the left, and the left rear wheel moves outward, similarly preventing tipping.

[0016] Furthermore, during the process of the left or right rack pushing hydraulic oil into the left or right pressure chamber through the flow channel, a resistance is generated by the rack acting on the full gear and the connecting rotating rod. This makes it difficult for children to easily make rapid, large-amplitude turns by turning the rotating rod with the handlebars while riding, effectively avoiding the problem of tipping over due to excessive turning amplitude, and improving the operational stability of the tricycle during turning. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a top view sectional structural diagram of the base of this utility model;

[0019] Figure 3 This is a top view of the all-gear structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the piston connecting rod and the rear wheel of this utility model;

[0021] Figure 5 This is a top view of the structure of this utility model.

[0022] In the diagram: 1. Base; 2. Rotating rod; 3. Handle; 4. Front wheel; 5. Linkage resistance structure; 501. Full gear; 502. Left rack; 503. Right rack; 504. Left chamber; 505. Right chamber; 6. Center of gravity adjustment structure; 601. First flow channel; 602. Second flow channel; 603. Left pressure chamber; 604. Right pressure chamber; 605. Piston connecting rod; 7. Rear wheel; 8. Seat. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 This utility model provides a technical solution: an anti-tipping children's tricycle, including a base 1, a rotating rod 2, a handle 3, a front wheel 4, a linkage resistance structure 5, a full gear 501, a left rack 502, a right rack 503, a left chamber 504, a right chamber 505, a center of gravity adjustment structure 6, a first flow channel 601, a second flow channel 602, a left pressure chamber 603, a right pressure chamber 604, a piston connecting rod 605, a rear wheel 7, and a seat 8. The rotating rod 2 is rotatably connected to one side of the base 1, and the upper end of the rotating rod 2 is connected to a handle 3 for holding, and the lower end of the rotating rod 2 is connected to the front wheel 4. A linkage resistance structure 5 is provided between the outer wall of the rotating rod 2 and the base 1, and the linkage resistance structure 5 is connected to the center of gravity adjustment structure 6, which is located inside the base 1. The rear wheel 7 is connected to the center of gravity adjustment structure 6, and the seat 8 is installed on the top of the base 1.

[0025] The base 1 is viewed from above as a convex structure, and the diameter of the front wheel 4 is larger than that of the rear wheel 7.

[0026] The linkage resistance structure 5 includes a full gear 501, a left rack 502, a right rack 503, a left chamber 504, and a right chamber 505. The full gear 501 is connected to the outer wall of the rotating rod 2 in the area between the base 1 and the front wheel 4. The left rack 502 and the right rack 503 are respectively meshed on both sides of the full gear 501. The ends of the left rack 502 and the right rack 503 are located in the corresponding left chamber 504 and right chamber 505, respectively. The left chamber 504 and the right chamber 505 are opened in the base 1.

[0027] Both the left rack 502 and the right rack 503 are configured with a "T" shape, and the "T" shape ends of the left rack 502 and the right rack 503 located in the left chamber 504 and the right chamber 505 are configured with piston structures.

[0028] The center of gravity adjustment structure 6 includes a first flow channel 601, a second flow channel 602, a left pressure chamber 603, a right pressure chamber 604, and a piston connecting rod 605. The first flow channel 601 and the second flow channel 602 are respectively opened in the base 1, and the first flow channel 601 and the second flow channel 602 are respectively connected to the left pressure chamber 603 and the right pressure chamber 604. The left pressure chamber 603 and the right pressure chamber 604 are respectively opened on both sides of the base 1. A piston connecting rod 605 is connected to each of the left pressure chamber 603 and the right pressure chamber 604. The end of the piston connecting rod 605 passes through both sides of the base 1 and is connected to a rear wheel 7. The rear wheel 7 is slidably installed with the base 1.

[0029] The first flow channel 601 and the second flow channel 602 are not connected to each other, and the first flow channel 601 and the second flow channel 602 are arranged in an "X" shape when viewed from above.

[0030] Working principle: According to Figure 1 As shown, when riding, the child sits on the seat 8, holds the handlebars 3 with both hands, and puts his feet on the pedals on both sides of the front wheel 4 to ride. Since the left chamber 504, right chamber 505, first flow channel 601 and second flow channel 602 are located in the middle area of ​​the base 1, the hydraulic oil and weight inside them make the center of gravity of the base 1 located in the middle area of ​​the base 1, which has a certain stabilizing effect.

[0031] refer to Figure 3 As shown, when the control handle 3 is rotated to the left during riding, the rotating rod 2 drives the full gear 501 to rotate clockwise, causing the left rack 502 and right rack 503, which are meshed on both sides of the full gear 501, to move in opposite directions. The left rack 502 moves into the left chamber 504, and the right rack 503 moves in the opposite direction.

[0032] refer to Figure 2As shown, at this time, the hydraulic oil in the left chamber 504 is squeezed by the left rack 502 and enters the right pressure chamber 604 through the first flow channel 601. This increases the gravity on the right side of the base 1, shifting the center of gravity to the right. This prevents the base 1 from becoming unstable due to leftward rotation, which could cause the right side to tilt and tip over. At the same time, as the hydraulic oil enters the right pressure chamber 604, it pushes the piston connecting rod 605 in the right pressure chamber 604 to move outward from the right side of the base 1. This pushes the rear wheel 7 connected to the right side to move outward away from the base 1, increasing the wheelbase and track width, further preventing the right side from tilting and tipping over. When turning right, the same principle applies to turning left and right. Additionally, when the left rack 502 or right rack 503 pushes the hydraulic oil in the corresponding left chamber 504 or right chamber 505 into the left pressure chamber 603 or right pressure chamber 604 through the first flow channel 601 and the second flow channel 602, the left rack 502 and right rack 503 will act on the full gear 501 and the rotating rod 2 connected thereto, creating a resistance. This makes it difficult for children to easily turn the rotating rod 2 quickly and with a large amplitude by using the handle 3, thus avoiding the problem of tipping over due to excessive rotation amplitude when turning.

[0033] This children's tricycle reduces the risk of tipping over from three points through the interaction of components such as the linkage resistance structure 5 and the center of gravity adjustment structure 6. Firstly, the flow of hydraulic oil in the opposite direction of the turn affects the center of gravity of the base 1, preventing tipping. Secondly, the distance between the rear wheel 7 (opposite to the turning direction) and the base 1 is increased to prevent tipping. Thirdly, resistance is applied to the rotating rod 2 to prevent children from turning the handle 3 too sharply or at too large an angle, which could lead to tipping. This is the working principle of this anti-tip-over children's tricycle.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rollover-resistant children's tricycle, comprising a base (1), a rotating rod (2), a handle (3), a front wheel (4), a linkage resistance structure (5), a full gear (501), a left rack (502), a right rack (503), a left chamber (504), a right chamber (505), a center of gravity adjustment structure (6), a first flow channel (601), a second flow channel (602), a left pressure chamber (603), a right pressure chamber (604), a piston connecting rod (605), a rear wheel (7), and a seat (8), characterized in that: A rotating rod (2) is rotatably connected to one side of the base (1), and a handle (3) for hand-held use is connected to the upper end of the rotating rod (2), and a front wheel (4) is connected to the lower end of the rotating rod (2). A linkage resistance structure (5) is provided between the outer wall of the rotating rod (2) and the base (1), and a center of gravity adjustment structure (6) is connected to the linkage resistance structure (5). The center of gravity adjustment structure (6) is located inside the base (1), and a rear wheel (7) is connected to the center of gravity adjustment structure (6). A seat (8) is installed on the top of the base (1).

2. The anti-tipping child tricycle according to claim 1, characterized in that: The base (1) is viewed from above as a "convex" structure, and the diameter of the front wheel (4) is larger than that of the rear wheel (7).

3. The anti-tipping child tricycle according to claim 1, characterized in that: The linkage resistance structure (5) includes a full gear (501), a left rack (502), a right rack (503), a left chamber (504), and a right chamber (505). The outer wall of the rotating rod (2) is connected to the full gear (501) in the area between the base (1) and the front wheel (4). The left rack (502) and the right rack (503) are respectively meshed on both sides of the full gear (501). The ends of the left rack (502) and the right rack (503) are respectively located in the corresponding left chamber (504) and right chamber (505). The left chamber (504) and the right chamber (505) are opened in the base (1).

4. The anti-tipping child tricycle according to claim 3, characterized in that: The left rack (502) and the right rack (503) are both configured as "T"-shaped structures, and the "T"-shaped ends of the left rack (502) and the right rack (503) located in the left chamber (504) and the right chamber (505) are both configured as piston structures.

5. The anti-tipping child tricycle according to claim 1, characterized in that: The center of gravity adjustment structure (6) includes a first flow channel (601), a second flow channel (602), a left pressure chamber (603), a right pressure chamber (604), and a piston connecting rod (605). The base (1) is provided with the first flow channel (601) and the second flow channel (602), and the first flow channel (601) and the second flow channel (602) are respectively connected to the left pressure chamber (603) and the right pressure chamber (604). The left pressure chamber (603) and the right pressure chamber (604) are respectively located on both sides of the base (1). A piston connecting rod (605) is connected to each of the left pressure chamber (603) and the right pressure chamber (604). The end of the piston connecting rod (605) passes through both sides of the base (1) and is connected to a rear wheel (7). The rear wheel (7) is slidably installed with the base (1).

6. A child tricycle designed to prevent tipping over according to claim 5, characterized in that: The first flow channel (601) and the second flow channel (602) are not connected to each other, and the first flow channel (601) and the second flow channel (602) are arranged in an "X" shape when viewed from above.

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