Tire filling inner core, model tire and model vehicle

Abstract

The utility model discloses a kind of tire filling inner core, model car tire and model car, above-mentioned tire filling inner core is used to fill in model car tire, specifically including non-absorbing elastic inner core body and several connecting parts, the elastic inner core body includes several flexible filling layers and the diameter of each flexible filling layer is not same, several flexible filling layers are coaxially arranged and are spaced along radial direction, several connecting parts are spaced along the axial direction of flexible filling layer, and each flexible filling layer is sequentially connected along radial direction, each flexible filling layer can be cut and divided along outer circumferential surface, to be suitable for different model car tire.The utility model can avoid the use of tire being affected by water, and each flexible filling layer can be cut and divided along outer circumferential surface, to form the elastic inner core body of different diameter, so that it can be suitable for different tire size, reduce the modification use cost of user.

Description

Technical Field

[0001] This utility model relates to the field of model car technology, specifically to a tire filling core, a model car tire, and a model car. Background Technology

[0002] Modifying remote-controlled model cars integrates hands-on skills and mechanical knowledge. It includes appearance and basic modifications, as well as performance and power upgrades. Modifying the tires of remote-controlled model cars can have the most significant impact on their different performance characteristics. For example, large tires are suitable for rolling, crawler tires enhance grip, and road tires increase speed on paved roads. Currently, the internal filling of remote-controlled model car tires is usually made of solid sponge material. For example, in the patent document with announcement number CN223148115U, sponge-filled cores are used to fill the tires of remote-controlled model cars.

[0003] Therefore, using sponge material as the filling core can easily lead to a short service life, easy water absorption or damage when exposed to water, affecting the use of the tire. Moreover, the size is specific to this tire and cannot be used with other tire sizes. Users have to buy different sized sponge cores for different tire sizes, which increases the user's modification and usage costs. Utility Model Content This utility model aims to solve, at least to some extent, the technical problems in related technologies, such as the short service life of sponge tire inner cores, their susceptibility to water absorption or damage when exposed to water, which affects tire use, and the fact that the size of the inner core is specific to a particular tire and cannot be used with other tire sizes. Users have to purchase different sizes of sponge inner cores for different tire sizes, which increases the user's modification and usage costs.

[0004] Therefore, one objective of this utility model is to provide a tire filling core for filling inside a model car tire, comprising: A non-absorbent elastic inner core body, the elastic inner core body comprising a plurality of flexible filling layers, each of which has a different diameter, the plurality of flexible filling layers being coaxially arranged and spaced apart along the radial direction; A plurality of connecting portions are spaced apart around the axial direction of the flexible filler layer and the flexible filler layer is connected sequentially in the radial direction. Each flexible filler layer can be cut and divided along its outer peripheral surface to suit different tires.

[0005] Preferably, the connection between two adjacent flexible filler layers has an inner connection end and an outer connection end, and the flexible filler layer is used to be cut and divided via the inner connection end.

[0006] Preferably, the inner connecting end has a cutting hole that extends through the height direction of the connecting portion.

[0007] Preferably, the flexible filling layer includes an inner support surface and an outer support surface, and the two ends of the connecting portion are respectively connected to the inner support surface and the outer support surface.

[0008] Preferably, the connecting portion and each of the flexible filling layers together define a plurality of hollow holes, and the plurality of hollow holes are arranged at intervals around the axial direction of the flexible filling layer.

[0009] Preferably, the minimum outer diameter of the flexible filling layer is 20mm-60mm, the maximum outer diameter is 60mm-200mm, and the spacing between two adjacent flexible filling layers is 2mm-5mm.

[0010] Preferably, the elastic inner core body is a silicone inner core or a rubber inner core.

[0011] Preferably, the thickness of each flexible filler layer is 3mm-8mm, and the angle between the extension lines of two adjacent connecting parts around the axial direction is 10 degrees to 35 degrees.

[0012] The second objective of this invention is to provide a model car tire, comprising the tire filling core as described above.

[0013] The third objective of this invention is to provide a model car, including the tire filling core as described above.

[0014] The above-described solution of this utility model has at least the following beneficial effects: The tire filling core provided by this utility model uses a non-absorbent elastic core body to fill the tire, which can avoid the tire's use being affected by water. Moreover, each flexible filling layer can be cut and divided along the outer circumference to form an elastic core body of different diameters, thus making it suitable for different tire sizes and reducing the user's modification and usage costs.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] 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 the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the tire filling core provided in the embodiment of this utility model; Figure 2 This is another structural schematic diagram of the tire filling core provided in this embodiment of the utility model; Figure 3 This is a structural example diagram of the tire filling core in use provided in the embodiments of this utility model; Explanation of icon numbers: 10. Elastic inner core body; 11. Flexible filling layer; 111. Inner support surface; 112. Outer support surface; 12. Connecting part; 121. Inner connecting end; 122. Outer connecting end; 123. Cutting hole; 13. Hollow hole; 20. Tire.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The tire filling core of this utility model embodiment is described in detail below with reference to the accompanying drawings.

[0025] Reference Figure 1 and Figure 3 As shown, the tire filling core provided in this embodiment of the present invention is used to fill the tire of a model car. It includes a non-absorbent elastic core body 10. Preferably, the elastic core body 10 is made of rubber, and more preferably, the elastic core body 10 is made of silicone. This allows the elastic core body 10 to meet the hardness requirements while preventing water absorption when filling the tire 20. In addition, the silicone has a certain degree of adhesion, which makes the assembly with the tire 20 more stable and improves the service life of the elastic core body 10.

[0026] Specifically, the elastic inner core body 10 includes several flexible filling layers 11, each with a different diameter. Each flexible filling layer 11 has a circular structure. The smallest diameter flexible filling layer 11 can be set according to the inner diameter of the tire 20. The number of flexible filling layers 11 can be set according to user requirements; for example, it can contain at least three flexible filling layers 11. The number of these three flexible filling layers 11 determines that the tire 20 it can fill contains at least three sizes. Furthermore, the several flexible filling layers 11 are coaxially arranged and spaced apart in the radial direction to form multiple... The tire has a ring structure and each flexible filling layer 11 can be cut and divided along its outer circumference so that the diameter of the outermost flexible filling layer 11 can be filled according to the diameter of the tire 20. For example, when filling a tire 20 with a diameter of 80mm, if the outer diameter of the three flexible filling layers 11 is 100mm, the outermost flexible filling layer 11 can be cut so that the outer diameter of the remaining two flexible filling layers 11 is 80mm. The two cut flexible filling layers 11 are then filled into the tire 20 so that they can be accurately cut and filled according to the size of the tire 20.

[0027] Preferably, the elastic inner core body 10 further includes a plurality of connecting portions 12. The plurality of connecting portions 12 are spaced apart around the axial direction of the flexible filling layer 11 and connect the flexible filling layers 11 sequentially in the radial direction, so that the connecting portions 12 can connect and support each flexible filling layer 11. When it is necessary to cut the flexible filling layer 11, it can be cut from the position of the outer peripheral surface where the connecting portion 12 is connected to the flexible filling layer 11, so that the cut flexible filling layer 11 can correspond to the size of the tire 20 to be filled, thereby ensuring that the size of the flexible filling layer 11 can be adapted to the tire 20, and the adaptation degree is higher.

[0028] Furthermore, the connecting part 12 and each flexible filling layer 11 together define a number of hollow holes 13. The number of hollow holes 13 are arranged at intervals around the axial direction of the flexible filling layer 11. The number of hollow holes 13 can form a buffer between the flexible filling layers 11, and can also make the overall weight of the elastic inner core body 10 lighter. After being filled into the tire 20, the tire 20 can be made lighter, which is more suitable for the lightweight modification of model cars. It can be understood that the elastic inner core body 10 can be made by integral molding with a mold, so as to make the processing and molding efficiency of the elastic inner core body 10 higher.

[0029] In one specific embodiment, the flexible filling layer 11 includes an inner support surface 111 and an outer support surface 112. The two ends of the connecting portion 12 are respectively connected to the inner support surface 111 of the outer layer and the outer support surface 112 of the inner layer. When the elastic inner core body 10 is squeezed inside the tire 20, the inner support surface 111 and the outer support surface 112 of each flexible filling layer 11 can form a certain support, ensuring better support for the tire 20.

[0030] Reference Figure 2 As shown, the connecting portion 12 between two adjacent flexible filling layers 11 has an inner connecting end 121 and an outer connecting end 122. The flexible filling layer 11 is cut and divided via the inner connecting end 121, so that the outer support surface 112 of the flexible filling layer 11 is flatter after being cut and divided, and the connecting portion 12 is prevented from protruding from the outer support surface 112 of the flexible filling layer 11, resulting in better overall flatness and a simpler cutting method.

[0031] As an optional embodiment, the inner connecting end 121 has a cutting hole 123 that extends through the height direction of the connecting portion 12. When cutting each flexible filling layer 11, scissors can be used to cut the cutting hole 123 to separate the connecting portion 12 from the flexible filling layer 11, making the cutting and separating operation between the connecting portion 12 and the flexible filling layer 11 simpler and more accurate. As a preferred embodiment, the cutting hole 123 can also be a waist-shaped hole to reduce the cutting positions and improve the flatness of the flexible filling layer 11 after cutting.

[0032] As an optional embodiment, the minimum outer diameter of the flexible filler layer 11 is 20mm-60mm. When the filler core is used to fill ultra-small scale (1:18, 1:24, 1:36) model cars, such as small model cars for indoor or flat-road play, the tire 20 is smaller, and the required diameter of the filler core is also smaller. Therefore, the minimum outer diameter of the flexible filler layer 11 can be 45mm, 55mm, etc.; the maximum outer diameter is 60mm- For example, when applied to giant scale (1:10, 1:8) model cars, the maximum outer diameter of the flexible filling layer 11 can be 150mm, 180mm, etc., and the spacing between two adjacent flexible filling layers 11 is 2mm-5mm. It is understood that the above-mentioned dimensions of the flexible filling layer 11 are only an example and are not limited here. Optionally, the thickness of each flexible filling layer is 3mm-8mm. The thickness of the flexible filling layer 11 should be suitable for different tires as much as possible while meeting its elastic cushioning effect. The thickness of the flexible filling layer 11 can be 6mm. The angle between the extension lines of two adjacent connecting parts around the axial direction is 10 degrees to 35 degrees. The angle between the connecting parts 12 around the axial direction can be set according to actual needs. The smaller the angle between the connecting parts 12, the higher the connection strength between each flexible filling layer 11. The larger the angle between the connecting parts 12, the better the cushioning effect between each flexible filling layer 11. The tire filling core provided by this utility model uses a non-absorbent elastic core body 10 to fill the tire 20, which can avoid the tire 20 from being affected by water. Moreover, each flexible filling layer 11 can be cut and divided along the outer circumference to form elastic core bodies 10 of different diameters, so that it can be applied to different tire 20 sizes, reducing the user's modification and use costs.

[0033] Reference Figure 3 As shown, the model car tire proposed in the embodiment of this utility model includes the tire filling core as described above. The model car tire can be applied to various types of remote control model cars. The filling core can be filled inside the tire 20. When it is necessary to adapt to tires 20 of different sizes, the filling core can be cut and divided to form filling cores of different diameters to be filled inside the tire 20, so that the application range of the filling core is wider.

[0034] The model car proposed in the embodiments of this utility model includes the tire filling core as described above. The model car can be a monster truck model car, a climbing model car, an off-road model car, or a racing go-kart model car, etc. The model car can use the tires 20 to achieve different modification needs. When different sizes of tires 20 need to be installed, the diameter of the filling core can be changed to fill tires 20 of different sizes, reducing the user's modification and use costs for the model car.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A tire filling core for filling inside a model car tire, characterized in that, include: A non-absorbent elastic inner core body, the elastic inner core body comprising a plurality of flexible filling layers, each of which has a different diameter, the plurality of flexible filling layers being coaxially arranged and spaced apart along the radial direction; A plurality of connecting portions are spaced apart around the axial direction of the flexible filler layer and the flexible filler layer is connected sequentially in the radial direction. Each flexible filler layer can be cut and divided along its outer peripheral surface to suit different tires. The connection between two adjacent flexible filler layers has an inner connection end and an outer connection end, and the flexible filler layer is used to be cut and divided via the inner connection end; The inner connecting end has a cutting hole that extends through the height direction of the connecting part, and the cutting hole is an oblong hole. The thickness of each flexible filler layer is 3mm-8mm, and the angle between the extension lines of two adjacent connecting parts around the axial direction is 10 degrees to 35 degrees.

2. The tire filling core according to claim 1, characterized in that, The flexible filling layer includes an inner support surface and an outer support surface, and the two ends of the connecting part are respectively connected to the inner support surface and the outer support surface.

3. The tire filling core according to claim 1, characterized in that, The connecting portion and each of the flexible filling layers together define a plurality of hollow holes, which are spaced apart around the axial direction of the flexible filling layers.

4. The tire filling core of claim 1, wherein, The minimum outer diameter of the flexible filler layer is 20mm-60mm, the maximum outer diameter is 60mm-200mm, and the spacing between two adjacent flexible filler layers is 2mm-5mm.

5. The tire filling core according to any one of claims 1 to 4, characterized in that, The elastic inner core body is a silicone inner core or a rubber inner core.

6. A model vehicle tire characterized by, Includes the tire filling core as described in any one of claims 1 to 5.

7. A model car, characterized in that, Includes the tire filling core as described in any one of claims 1 to 5.

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