A stroller wheel

Abstract

The utility model relates to the technical fields of wheel, disclose a kind of baby carriage wheel, including axle, the outer surface of axle is fixedly installed with walking mechanism;The inner surface of walking mechanism includes mounting disc, and the outer surface of mounting disc is fixedly connected with the outer surface of axle, the outer surface of mounting disc is fixedly installed with support frame, and the outer surface of support frame is fixedly installed with reinforcing frame.The baby carriage wheel, by axle first transmission to two sides symmetrical distribution's mounting disc of stepped convex round spoke shape.This structure utilizes its stepped flange to effectively disperse and reduce the stress concentration of junction place.Subsequently, load is mainly transmitted by multiple outwardly convex triangular solid support frame;The inherent geometric stability of the triangular structure is fully utilized, and the radial load is efficiently converted into compressive stress and tensile stress in the support frame, and the force is transmitted to the vertical rim with very high structural efficiency.The straight rim avoids the lateral component force generated by the inner inclined structure.

Description

Technical Field

[0001] This utility model relates to the technical field of wheels, and in particular to a children's wheel. Background Technology

[0002] As a fundamental load-bearing and locomotion mechanism, the wheel is widely used in many fields, from daily tools to industrial equipment. A typical wheel structure usually includes core components such as the rim, spokes, and center mount. The rim forms the outer edge of the wheel and is used to mount the tire; the spokes, as connecting elements, are radially distributed between the rim and the center mount; and the center mount is responsible for fixing it to the axle. In current design and manufacturing practices, the spokes and mount are often made as a single-sided structure to achieve lightweighting. Simultaneously, to accommodate tire mounting and fixation, the side profile of the rim is often designed with a certain inward slope angle, and its support strips are mostly flat plate structures. Furthermore, the connection between the wheel and the axle usually transitions with a smooth arc to meet basic stress distribution requirements.

[0003] In modern industry and logistics, wheels, as key load-bearing components of various vehicles and equipment, directly affect the safety and efficiency of the entire system through their structural strength and stability. However, existing wheel structures suffer from a series of inherent defects that severely restrict their performance. First, traditional wheel spokes and center mounting discs often employ a single-sided design. This structure results in the load being borne by material on only one side, making it prone to fatigue cracks at stress concentration points and causing wheel sway due to asymmetrical support, severely impacting operational stability and safety. Second, the connection area between the wheel hub and axle is typically designed as a simple right angle or smooth transition, lacking effective local reinforcement. Under frequent start-stop cycles and impact loads, this area is highly susceptible to stress concentration and cracking, posing a significant risk of connection failure. Furthermore, the common inward-sloping rim structure generates unfavorable lateral forces under load, implicitly reducing the wheel's vertical load-bearing capacity. Simultaneously, the support strips connecting the rim and hub are often planar plate structures with low section modulus and poor bending stiffness, failing to provide strong support for the rim and making them prone to crushing deformation under heavy load conditions. Utility Model Content

[0004] Given that existing wheels often employ a single-sided spoke and flat mounting plate structure, resulting in insufficient support and uneven stress distribution; the smooth transition at the wheel-axle connection makes stress concentration and stability poor under complex loads; and the inward-sloping rim and flat support strip also weaken the overall structural rigidity and make them prone to deformation, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a children's wheel, which is to change the original single-sided spoke and single-sided mounting plate to a double-sided symmetrical structure, add annular reinforcing ribs at the wheel edge (rim), add protruding arc or triangular reinforcing corners at the connection area between the wheel center and the axle, and change the original flat support strip to an outward protruding triangular three-dimensional support strip.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a children's wheel, including an axle, wherein a walking mechanism is fixedly installed on the outer surface of the axle; The walking mechanism includes a mounting plate, the inner surface of which is fixedly connected to the outer surface of the axle, a support frame is fixedly mounted on the outer surface of the mounting plate, and a reinforcing frame is fixedly mounted on the outer surface of the support frame.

[0007] As a preferred embodiment of the children's wheel of the present invention, the walking mechanism further includes a rim, the inner surface of the rim being fixedly connected to the outer surface of the reinforcing frame, and an air hole being provided through the outer surface of the rim.

[0008] In a preferred embodiment of the children's wheel of this utility model, the number of the mounting plate, support frame and reinforcing frame are all two, and they are symmetrically fixedly connected.

[0009] As a preferred embodiment of the child wheel of the present invention, the mounting disc flange structure has a stepped profile that protrudes outward.

[0010] As a preferred embodiment of the children's wheel of this utility model, the support frame is a triangular solid with an outward protrusion.

[0011] In a preferred embodiment of the children's wheel of this utility model, the rim is a vertical rim structure.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model, through a design that comprehensively enhances load-bearing capacity and structural stiffness, utilizes the combined use of mounting plates, support frames, and reinforcing frames. By employing a double-sided symmetrical arrangement of the mounting plates, support frames, and reinforcing frames, a stable "clamping" type spatial truss force transmission system is formed. This structure enables multi-path, uniform load transfer, completely changing the traditional single-sided support force distribution mode, thereby significantly increasing the radial load-bearing capacity and torsional stiffness of the wheels.

[0013] 2. This utility model exhibits a synergistic enhancement in local connection strength, impact resistance, and force transmission efficiency through the coordinated use of the mounting plate and support frame with the reinforcing frame and rim. The flange structure of the mounting plate, with its stepped contour, significantly improves its rigidity and greatly increases the contact area with the support frame, forming a high-strength connection node. This avoids stress concentration and fatigue risks under heavy loads, ensuring the reliability and long-term stability of the connection with the axle. The outwardly protruding triangular three-dimensional support frame utilizes the principle of triangular stability and the bending resistance characteristics of beam structures. Its large section modulus gives it excellent crush resistance, providing a solid back support for the rim. Combined with the reinforcing frame that surrounds the rim and acts as a "hoop," the circumferential stiffness of the rim is significantly improved, enabling it to effectively resist impacts and prevent permanent deformation when subjected to side impacts or heavy pressure.

[0014] 3. This utility model improves the efficiency and purity of wheel force transmission through a design that enhances wheel force transmission. The vertically designed rim structure eliminates the harmful lateral force generated by the traditional inward-sloping structure, establishing a more direct and efficient vertical force transmission path. This makes the wheel's load-bearing capacity more pure, and simultaneously improves the overall structural efficiency and stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the children's wheel of this utility model; Figure 2 This is a schematic diagram of the overall exploded three-dimensional structure of the children's wheel of this utility model; Figure 3 For the children's wheel of this utility model Figure 2 Schematic diagram of the enlarged structure of A in the middle; Figure 4 This is a three-dimensional structural diagram of the walking mechanism of the children's wheel of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Axle; 2. Traveling mechanism; 21. Mounting plate; 22. Support frame; 23. Reinforcing frame; 24. Ridge; 25. Air hole. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Reference Figures 1-4 This is the first embodiment of the present invention, which provides a children's wheel, which includes an axle 1 and a walking mechanism 2 fixedly mounted on the outer surface of the axle 1; The walking mechanism 2 includes a mounting plate 21, the inner surface of which is fixedly connected to the outer surface of the axle 1, a support frame 22 is fixedly mounted on the outer surface of the mounting plate 21, and a reinforcing frame 23 is fixedly mounted on the outer surface of the support frame 22.

[0019] The reinforcing frame 23 acts like a "tightening band" on the edge of the wheel, significantly enhancing the circumferential stiffness and impact resistance of the rim. Under side impact or heavy pressure, the reinforcing frame 23 can effectively prevent the rim from cracking or undergoing permanent deformation, making it particularly suitable for harsh working conditions or heavy-load scenarios.

[0020] The traveling mechanism 2 also includes a rim 24, the inner surface of which is fixedly connected to the outer surface of the reinforcing frame 23, and an air hole 25 is provided through the outer surface of the rim 24.

[0021] Air vent 25 is the valve used to install the tire.

[0022] There are two of each of the mounting plate 21, support frame 22 and reinforcing frame 23, and they are symmetrically and fixedly connected.

[0023] This design breaks away from the limitations of traditional single-sided support, forming a stable "clamping" structure through the double-sided support frame 22 and the double-sided mounting plate 21. This symmetrical design allows the force to be evenly transmitted from the spokes on both sides to the center when the wheel is under load, greatly improving the force distribution and avoiding the problem of stress concentration on one side, thereby multiplying the radial support force and torsional stiffness of the wheel as a whole.

[0024] The mounting plate 21 has a flange structure, and its side profile protrudes outward in a stepped shape.

[0025] The flanged mounting plate 21, with its unique stepped outward protrusion structure, primarily enhances the rigidity of the mounting plate 21 itself and the strength of its connection node with the axle 1. By utilizing the flange structure, it significantly increases the contact area with the support frame 22, forming a more stable force flow path. This allows the load to be distributed and transmitted more evenly, effectively avoiding the stress concentration, fatigue cracking, and connection loosening problems commonly found in traditional single-sided mounting plates 21 under heavy loads. This fundamentally improves the overall stability and load-bearing capacity of the traveling mechanism 2.

[0026] The support frame 22 is a triangular solid with an outward protrusion.

[0027] The outward-protruding triangular support bars utilize the inherent stability of triangles and the bending resistance principle of beam structures. This three-dimensional protruding design is equivalent to upgrading the planar "plate" support to a spatial "beam" support, resulting in a larger section modulus and significantly improved resistance to bending and crushing. Multiple such triangular support bars are evenly distributed circumferentially, forming a powerful "space truss" support system that provides extremely robust back support for the straight rim 24.

[0028] The rim 24 is a vertical rim 24 structure.

[0029] The straight rim structure provides a more direct and efficient force transmission path, eliminating the lateral force component caused by the inward tilt structure, making the wheel's load-bearing capacity more pure and powerful.

[0030] During operation, the axle 1 rotates under external power drive or driven state, thereby driving the entire traveling mechanism 2 fixed to it to rotate synchronously. The weight of the vehicle or equipment and the load are applied to the mounting plates 21 on both sides through the axle 1. When the wheel rolls over an uneven road surface and is impacted, the impact force first acts on the vertical rim 24, and is then guided by the reinforcing frame 23 to the triangular support frame 22. The support frame 22 uses its outwardly convex three-dimensional triangular shape to generate elastic deformation to absorb part of the impact energy and quickly feed the force back to the entire symmetrical support system, effectively suppressing the vibration and deformation of the wheel and ensuring the smoothness of the ride. At the same time, the stepped convex structure of the mounting plate 21 ensures the rigidity of its connection with the axle 1, maintaining stable power transmission under complex torque. Through the synergistic effect of its components, the entire traveling mechanism 2 ensures stable and reliable operation of the equipment under high load or harsh working conditions.

[0031] The working principle of this invention is as follows: Gravity is first transmitted through the axle 1 to the stepped, convex spoke-shaped mounting discs 21 symmetrically distributed on both sides. This structure effectively disperses and reduces stress concentration at the connection points by utilizing its stepped flanges. Subsequently, the load is mainly transmitted through multiple outwardly protruding triangular three-dimensional support frames 22; this triangular structure fully utilizes its inherent geometric stability, efficiently converting radial loads into compressive and tensile stresses within the support frames 22, and transmitting the force to the vertical rim 24 with extremely high structural efficiency. The straight rim 24 avoids the lateral component force generated by the inwardly inclined structure, achieving pure radial load bearing, and ultimately applying pressure evenly to the tire. Throughout the process, the symmetrically arranged mounting discs 21, support frames 22, and reinforcing frames 23 together constitute a highly rigid, double-sided symmetrical spatial truss system, enabling the load to be evenly distributed from point to surface and along multiple paths, thereby achieving a significant improvement in support force and stability.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A children's wheel, comprising an axle (1), characterized in that: The outer surface of the axle (1) is fixedly mounted with a walking mechanism (2); The walking mechanism (2) includes a mounting plate (21), the inner surface of which is fixedly connected to the outer surface of the axle (1), a support frame (22) is fixedly mounted on the outer surface of the mounting plate (21), and a reinforcing frame (23) is fixedly mounted on the outer surface of the support frame (22).

2. The children's wheel according to claim 1, characterized in that: The walking mechanism (2) also includes a rim (24), the inner surface of which is fixedly connected to the outer surface of the reinforcing frame (23), and an air hole (25) is provided through the outer surface of the rim (24).

3. The children's wheel according to claim 2, characterized in that: The number of the mounting plate (21), support frame (22) and reinforcing frame (23) are all two, and they are symmetrically and fixedly connected.

4. The children's wheel according to claim 1, characterized in that: The mounting plate (21) has a flange structure, and its side profile protrudes outward in a stepped shape.

5. The children's wheel according to claim 1, characterized in that: The support frame (22) is a triangular solid with an outward protrusion.

6. The children's wheel according to claim 2, characterized in that: The rim (24) is a vertical rim (24) structure.

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