Aluminum alloy wheel

Abstract

The application belongs to the field of wheel hubs, and particularly relates to an aluminum alloy wheel hub, which comprises an outer rim part and an inner rim part, the outer rim part comprises an outer rim, outer spokes and a shock-absorbing layer, the inner surface of the shock-absorbing layer is fixedly connected with a fixing cylinder, a spring is arranged in the fixing cylinder, one end of the spring is fixedly connected with a sliding block, the sliding block is matched with the inner rim part to realize the clamping of the inner rim part and the outer rim part; the inner rim part comprises an inner rim and inner spokes, the outer surface of the inner rim is provided with an arc-shaped sliding rail, the inner wall of the left end of the arc-shaped sliding rail is provided with a clamping groove, and the side wall of the inner rim is provided with a sliding groove; the problem that the uneven road surface will scratch the chassis when a children's toy stroller faces the uneven road surface in rural areas, and the shock-absorbing effect is not ideal when the uneven road surface is faced, thereby affecting the playing experience of children and reducing the playing interest of children is solved.

Description

Technical Field

[0001] This invention belongs to the field of wheel hubs, and specifically relates to an aluminum alloy wheel hub. Background Technology

[0002] A wheel hub is a cylindrical metal component that supports the tire and is mounted on the axle. It is also called a wheel rim, steel rim, wheel, or tire rim. Wheel hubs come in many varieties depending on their diameter, width, forming method, and material. Aluminum alloy wheel hubs have various structural designs, including integral and multi-piece assembly designs. Due to their excellent performance, aluminum alloy wheel hubs are also used in children's toys and children's vehicles.

[0003] However, most existing children's toy cars and strollers do not have adjustable wheel hubs to adjust the height of the chassis from the road surface, making them unable to adapt to changes in road conditions. When facing uneven rural roads, the uneven surfaces will scratch the chassis, affecting the lifespan of the children's toy cars and strollers. At the same time, since most children's toy cars and strollers reduce body vibration through shock-absorbing springs, the shock absorption effect is not ideal when facing uneven roads, thus affecting the child's play experience and reducing the child's interest in playing.

[0004] In view of this, an aluminum alloy wheel hub is proposed to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by this invention is that the aluminum alloy wheel hub provided by this invention mainly solves the problem that children's toy cars cannot adapt to changes in road conditions when facing uneven rural roads. Uneven roads will scratch the chassis. At the same time, although most children's toy cars reduce body vibration through shock-absorbing springs, the shock absorption effect is not ideal when facing uneven roads, thus affecting the child's play experience and reducing the child's interest in playing.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides an aluminum alloy wheel hub, comprising an outer rim portion and an inner rim portion. The outer rim portion includes an outer rim, outer spokes, and a damping layer. Multiple outer spokes are fixedly connected to the inner surface of the outer rim, and the other ends of the multiple outer spokes are fixedly connected to the outer surface of the damping layer. A fixing cylinder is fixedly connected to the inner surface of the damping layer, and a spring is provided inside the fixing cylinder. A slider is fixedly connected to one end of the spring, and the slider cooperates with the inner rim portion to achieve engagement between the inner rim portion and the outer rim portion.

[0008] The inner rim portion includes an inner rim and inner spokes. An arc-shaped slide rail is provided on the outer surface of the inner rim. A groove is provided on the inner wall of the left end of the arc-shaped slide rail. A sliding groove is provided on the side wall of the inner rim. The depth of the sliding groove is the same as the depth of the right end of the arc-shaped slide rail and they are connected.

[0009] Preferably, the depth of the arc-shaped slide rail gradually increases from the right end to the left end, and the depth of the left end of the arc-shaped slide rail and the depth of the groove do not exceed half the thickness of the inner rim.

[0010] Preferably, the width of the arc-shaped slide rail does not exceed one-third of the width of the inner rim.

[0011] Preferably, the shock-absorbing layer is composed of a honeycomb composite material.

[0012] Preferably, the outer spokes and the inner spokes are arranged in a staggered manner.

[0013] Preferably, the inner rim is covered with a protective cover, and the opening of the protective cover is made of an elastic material.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Compared with the prior art, when encountering uneven road surfaces, the present invention increases the wheel diameter of the children's toy car by engaging the outer rim and the inner rim, thereby raising the height of the car body, increasing the distance between the chassis and the road surface, preventing the chassis from being scratched by uneven road surfaces, and extending the service life of the children's toy car.

[0016] 2. After the outer rim and inner rim are engaged, the shock-absorbing layer on the outer rim absorbs the bumps caused by uneven road surfaces, enhancing the overall shock absorption performance of the vehicle body and reducing the bumps. This prevents the bumps from affecting the child's play experience and reducing the child's interest in playing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 Mid-section structural schematic diagram;

[0019] Figure 3 For the present invention Figure 2 Enlarged view of a portion of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the arc-shaped slide rail structure on the inner rim surface of the present invention;

[0021] Figure 5 This is a partial structural diagram of the shock-absorbing layer of the present invention;

[0022] Figure 6 This is a schematic diagram of the overall structure of the present invention after the protective cover is applied.

[0023] In the diagram: Outer rim 1, Outer rim 11, Outer spokes 12, Shock-absorbing layer 13, Fixed cylinder 131, Spring 132, Slider 133, Inner rim 2, Inner rim 21, Arc-shaped slide rail 211, Slot 212, Slide groove 213, Inner spokes 22, Protective cover 3. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] Please see Figures 1 to 6 In this embodiment of the invention, an aluminum alloy wheel hub includes an outer rim portion 1 and an inner rim portion 2. The outer rim portion 1 includes an outer rim 11, outer spokes 12, and a damping layer 13. A plurality of outer spokes 12 are fixedly connected to the inner surface of the outer rim 11, and the other ends of the plurality of outer spokes 12 are fixedly connected to the outer surface of the damping layer 13. A fixing cylinder 131 is fixedly connected to the inner surface of the damping layer 13. A spring 132 is provided inside the fixing cylinder 131. A slider 133 is fixedly connected to one end of the spring 132. The slider 133 cooperates with the inner rim portion 2 to realize the engagement between the inner rim portion 2 and the outer rim portion 1.

[0026] The inner rim portion 2 includes an inner rim 21 and inner spokes 22. An arc-shaped slide rail 211 is provided on the outer surface of the inner rim 21. A groove 212 is provided on the inner wall of the left end of the arc-shaped slide rail 211. A sliding groove 213 is provided on the side wall of the inner rim 21. The depth of the sliding groove 213 is the same as the depth of the right end of the arc-shaped slide rail 211 and they are connected.

[0027] When encountering uneven road surfaces, remove the small-diameter tire originally connected to the inner rim 21. Align the fixing cylinder 131, which is fixedly connected to the lower surface of the damping layer 13 in the outer rim portion 1, the spring 132, which is fixedly connected to the lower surface of the damping layer 13, and the slider 133, which is fixedly connected to the spring 132, with the groove 213 on the inner rim 21. Then, push the outer rim portion 1 inward along the groove 213 until it reaches the bottom of the groove 213, thereby compressing the spring 132. Then, rotate the entire outer rim portion 1 counterclockwise, causing the slider 133 to move along the arc-shaped slide rail 211 until it reaches the left end of the arc-shaped slide rail 211, thereby releasing the spring 132 and allowing the outer rim portion to... The outer rim 11 is radially locked in place, and then the entire outer rim 11 is pushed inward, causing the slider 133 to move inward along the slot 212, thereby locking the outer rim 1 in the axial direction of the inner rim 21. After the outer rim 1 and the inner rim 2 are locked in place, a tire of the corresponding model is installed on the outer rim 11, which increases the wheel diameter of the children's toy car and increases the distance between the road surface and the bottom of the car, preventing the chassis from being scratched by uneven road surfaces and extending the service life of the children's toy car. At the same time, as the outer rim 1 and the inner rim 2 are locked in place, the outer rim 1 and the inner rim 2 are prevented from separating when the wheel rotates, thus enhancing the safety of the children's toy car.

[0028] As the outer rim 1 and the inner rim 2 engage, the shock-absorbing layer 13 absorbs the vibrations caused by uneven road surfaces, further improving the shock absorption performance of the children's toy car and reducing the bumps of the car body, thereby preventing the bumps from affecting the child's play experience and reducing the child's interest in playing.

[0029] In one embodiment of the present invention, the depth of the arc-shaped slide rail 211 gradually increases from the right end to the left end, and the depth of the left end of the arc-shaped slide rail 211 and the depth of the groove 212 do not exceed half the thickness of the inner rim 21.

[0030] In order to achieve the radial and axial clamping of the outer rim portion 1 with the inner rim portion 21 and prevent the outer rim portion 1 from separating from the inner rim portion 2 when the wheel rotates, the arc-shaped slide rail 211 is designed with a structure in which the depth gradually increases from the right end to the left end, so that as the slider 133 moves along the arc-shaped slide rail 211, the spring 132 fixedly connected to the slider 133 is released from the compressed state; at the same time, in order to ensure the strength of the inner rim portion 2, the depth of the left end of the arc-shaped slide rail 211 and the depth of the groove 212 are set to not exceed half the thickness of the inner rim 21.

[0031] In one embodiment of the present invention, the width of the arc-shaped slide rail 211 does not exceed one-third of the width of the inner rim 21.

[0032] To facilitate the installation and disassembly of the outer rim 1, the width of the arc-shaped slide rail 211 is set to be no more than one-third of the width of the inner rim 21.

[0033] In one embodiment of the present invention, the shock-absorbing layer 13 is made of honeycomb composite material.

[0034] Because honeycomb materials have good linear elasticity and certain stiffness and strength, the damping layer 13 is made of honeycomb composite material, such as a closed honeycomb material containing high-temperature plastic polystyrene. This allows the damping layer 13 to achieve the damping effect while having certain stiffness and strength, thus improving the overall safety of the wheel hub.

[0035] In one embodiment of the present invention, the outer spokes 12 and the inner spokes 22 are arranged in a staggered manner.

[0036] By staggering the outer spokes 12 and the inner spokes 22, the overall rigidity and strength of the wheel hub are further improved, the overall stability and support of the wheel hub are enhanced, and thus the overall safety of the wheel hub is further improved.

[0037] In one embodiment of the present invention, the inner rim 21 is covered with a protective cover 3, and the opening of the protective cover 3 is made of an elastic material.

[0038] By setting a protective cover 3 on the outside of the inner rim 21, the protective cover 3 can prevent the aluminum alloy part of the wheel hub surface from being corroded, prevent the aluminum alloy part from reacting chemically with acidic or alkaline substances, and extend the service life of the wheel hub. At the same time, since the opening of the protective cover 3 is made of an elastic material, such as highly elastic rubber, the protective cover 3 can be easily installed and removed, and it is convenient to clean the protective cover 3.

[0039] Working principle: When encountering uneven road surfaces, remove the small-diameter tire originally connected to the inner rim 21. Align the fixing sleeve fixedly connected to the lower surface of the damping layer 13 in the outer rim part 1, the spring 132 fixedly connected to the lower surface of the damping layer 13, and the slider 133 fixedly connected to the spring 132 with the groove 213 on the inner rim 21. Then, push the outer rim part 1 inward along the groove 213 until it reaches the bottom of the groove 213, thereby compressing the spring 132. Then, rotate the entire outer rim part 1 counterclockwise, causing the slider 133 to move along the arc-shaped slide rail 211 until it reaches the left end of the arc-shaped slide rail 211, thereby releasing the spring 132 and allowing the outer rim part to... The outer rim 11 is radially locked in place, and then the entire outer rim 11 is pushed inward, causing the slider 133 to move inward along the slot 212, thereby locking the outer rim 1 in the axial direction of the inner rim 21. After the outer rim 1 and the inner rim 2 are locked in place, a tire of the corresponding model is installed on the outer rim 11, which increases the wheel diameter of the children's toy car and increases the distance between the road surface and the bottom of the car, preventing the chassis from being scratched by uneven road surfaces and extending the service life of the children's toy car. At the same time, as the outer rim 1 and the inner rim 2 are locked in place, the outer rim 1 and the inner rim 2 are prevented from separating when the wheel rotates, thus enhancing the safety of the children's toy car.

[0040] As the outer rim 1 and the inner rim 2 engage, the shock-absorbing layer 13 can absorb the vibration caused by uneven road surfaces, further improving the shock absorption performance of the children's toy car and reducing the bumps of the car body, thereby avoiding the impact of bumps on the child's play experience and reducing the child's interest in playing.

[0041] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not exist, the above embodiments only illustrate several implementation methods of the present invention. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be determined by the appended claims.

Claims

1. An aluminum alloy wheel comprising an outer rim portion and an inner rim portion, characterized by: The outer rim portion comprises an outer rim, outer spokes and a shock absorbing layer, the inner surface of the outer rim is fixedly connected with a plurality of outer spokes, the other end of the plurality of outer spokes is fixedly connected with the outer surface of the shock absorbing layer, the lower surface of the shock absorbing layer is fixedly connected with a fixing cylinder, the fixing cylinder is provided with a spring, one end of the spring is fixedly connected with a sliding block, the sliding block is matched with the inner rim portion to realize the clamping of the inner rim portion and the outer rim portion; the inner rim portion comprises an inner rim and inner spokes, the outer surface of the inner rim is provided with an arc-shaped sliding rail, the inner wall of the left end of the arc-shaped sliding rail is provided with a clamping groove, the side wall of the inner rim is provided with a sliding groove, the depth of the sliding groove is the same as the depth of the right end of the arc-shaped sliding rail and is communicated; The depth of the arc-shaped sliding rail gradually increases from the right end to the left end, and the depth of the left end of the arc-shaped sliding rail and the depth of the clamping groove are not more than half of the thickness of the inner rim; The inner part of the shock absorbing layer is composed of a honeycomb composite material; The outer spokes and the inner spokes are arranged in a staggered manner.

2. The aluminum alloy wheel of claim 1, wherein: The width of the arc-shaped sliding rail is not more than one third of the width of the inner rim.

3. The aluminum alloy wheel of claim 1, wherein: The outer part of the inner rim is covered with a protective cover, and the opening of the protective cover is composed of an elastic material.

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