Detachable plastic spoke

Abstract

The utility model relates to the technical field of spokes, and discloses a detachable plastic spoke which comprises a spoke body, eight air inlet holes are evenly formed in the position, close to an outer ring, of the spoke body, and an air inlet pipe is installed in each air inlet hole. The spoke body is of a double-layer structure and is specifically formed by combining an outer shell and an inner shell, the section cutting plane of the outer shell and the section cutting plane of the inner shell are n-shaped, the air inlet pipe serves as a component for connecting the outer shell and the inner shell, and the positions, close to an inner ring, of the outer shell and the inner shell are connected through an arranged inner connecting ring. An outer connecting ring is arranged between the outer shell and the inner shell close to the outer ring, and an inner reinforcing connecting ring is further connected between the outer shell and the inner shell. According to the detachable plastic spoke, in the aspect of structural strength, the double-layer structure, the connecting structure and the air inlet pipe are arranged and matched with one another, so that the spoke can bear force from different directions, such as axial force, radial force, lateral force, torsional force and impact force, and structural deformation, separation and damage are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel spokes, in particular to a detachable plastic wheel spoke. Background Art

[0002] Spokes are a crucial component of wheels, connecting the hub and rim during vehicle operation. With the development of modern industry, spoke performance requirements are becoming increasingly stringent. They must not only meet basic support and connection functions but also meet standards in structural strength, heat dissipation, durability, and other aspects. In terms of materials, in addition to traditional metals, plastic spokes are gaining attention and are being used in specific applications due to their advantages such as light weight, low cost, and easy molding.

[0003] Disadvantages of existing spokes

[0004] Limitations of single-layer structures

[0005] Many traditional spoke structures are single-layer designs. This leads to uneven stress distribution when subjected to complex external forces, such as multi-directional impacts on bumpy roads, lateral forces during cornering, and axial forces during braking or acceleration. The lack of a multi-layered structure to disperse stress can easily lead to localized stress concentration, causing spoke deformation, cracks, and even breakage, compromising spoke lifespan and driving safety.

[0006] Lack or insufficient heat dissipation channels

[0007] Many existing wheel spokes lack effective heat dissipation channels specifically designed for them. During extended driving or high-load operation, significant heat is generated within the spokes, particularly during braking, where frictional heat can cause the wheel hub temperature to rise dramatically. This lack of heat dissipation channels prevents this heat from being dissipated promptly.

[0008] It is difficult to balance heat dissipation and structural strength

[0009] Existing spoke designs often struggle to balance heat dissipation with structural strength. Structural improvements designed to increase heat dissipation can weaken the spoke's overall strength. For example, excessive heat dissipation holes can reduce its compressive strength. While focusing on structural strength, heat dissipation requirements can be overlooked, leading to poor heat dissipation in actual use. Utility Model Content

[0010] (1) Technical problems solved

[0011] In view of the deficiencies in the prior art, the utility model provides a detachable plastic spoke to solve the above problems.

[0012] (2) Technical solution

[0013] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a detachable plastic wheel spoke, comprising a wheel spoke body, wherein the wheel spoke body is evenly provided with 8 air inlet holes near the outer ring, and an air inlet pipe is installed inside each air inlet hole;

[0014] The spoke body is a double-layer structure and is specifically composed of an outer shell and an inner shell. The cross-sectional surfaces of the outer shell and the inner shell are arranged in a "J" shape. The air intake pipe serves as a component connecting the outer shell and the inner shell. The outer shell and the inner shell are connected near the inner circle by an inner connecting ring, and the outer shell and the inner shell are connected near the outer circle by an outer connecting ring. An inner reinforcing connecting ring is also connected between the outer shell and the inner shell.

[0015] As a preferred technical solution of the present invention, the outer end surface of the air inlet pipe is flush with the outer surface of the shell.

[0016] As a preferred technical solution of the present invention, the inner cross-section of the air intake pipe is flush with the inner surface of the inner shell.

[0017] As a preferred technical solution of the present utility model, the outer shell, the inner shell, the air inlet pipe, the inner connecting ring, the outer connecting ring and the inner reinforcing connecting ring are all made of polyurethane material.

[0018] As a preferred technical solution of the present invention, 8 bolt positioning through holes are evenly opened on the spoke body near the inner ring.

[0019] Compared with the prior art, the present invention provides a detachable plastic spoke, which has the following beneficial effects:

[0020] 1. Structural strength

[0021] Advantages of double-layer structure

[0022] The spoke body features a double-layer structure consisting of an outer shell and an inner shell, with a cross-section shaped like a "J." The outward protrusion of the outer shell effectively increases the overall strength of the spoke, dispersing stress and protecting the internal structure from external impacts such as road bumps. The "J" shape of the inner shell facilitates the optimal layout of components and creates airflow channels within the internal space. This dual-layer structure works together to enhance the spoke's overall compressive strength.

[0023] Reinforcement of connecting structures

[0024] The inner connecting ring enhances the stability of the inner ring connection, evenly transmitting axial and radial forces, preventing deformation or separation of the inner ring structure. It also limits the relative displacement of the outer and inner shells at the inner ring, ensuring the dimensional accuracy of the inner ring. The outer connecting ring performs a similar function for the outer ring, enhancing its structural strength and enabling it to resist external forces such as lateral forces, maintaining its shape stability. The inner reinforcing connecting ring further strengthens the connection between the two-layer structure. When the spoke is subjected to a combination of torsional and impact forces, it prevents local deformation or separation of the outer and inner shells, ensuring overall structural integrity.

[0025] Connection and enhancement of the intake pipe

[0026] The intake duct at the air intake hole serves as a connecting member between the outer and inner shells, increasing the connection points between the two-layer structure and further enhancing the structural strength of the spokes. The rational placement of the intake duct ensures a more stable connection between the inner and outer shells when the spokes are subjected to various external forces, reducing the possibility of structural loosening or damage.

[0027] 2. Heat dissipation performance

[0028] Heat dissipation function of air intake holes and intake pipes

[0029] Eight air intake holes, evenly spaced near the outer rim of the spoke body, serve as air exchange channels when ventilation and heat dissipation are required. An air intake duct within each hole not only connects the inner and outer shells but also ensures smooth air flow to the hub, helping to dissipate heat from the spokes and hub. This structural design allows the hub to effectively dissipate internal heat during operation, preventing heat accumulation from affecting spoke performance and internal components.

[0030] In summary, this removable plastic wheel spoke achieves multiple beneficial effects through its unique structural design. In terms of structural strength, the dual-layer structure, connecting structure, and intake duct arrangement work together to enable the wheel spoke to withstand forces from various directions, such as axial, radial, lateral, torsional, and impact forces. This effectively prevents deformation, separation, and damage, ensuring the spoke's stability and reliability under various complex operating conditions. This not only extends the spoke's service life but also improves its precise fit with other components (such as the hub and tire), ensuring the proper operation of the entire wheel train. Regarding heat dissipation, the design of the intake holes and intake duct provides an effective heat dissipation pathway within the hub, dissipating heat generated during operation and preventing problems such as material degradation and component aging caused by heat accumulation. This structural design balances structural strength with heat dissipation, demonstrating the rationality and superiority of the engineering design of this removable plastic wheel spoke. It has broad application prospects and is suitable for a variety of vehicles or equipment with high spoke performance requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure of the utility model.

[0034] Wherein: 1. Spoke body; 2. Air intake hole; 3. Air intake pipe; 4. Inner connecting ring; 5. Outer connecting ring; 6. Inner reinforcing connecting ring; 7. Bolt positioning hole;

[0035] 11. Outer shell; 12. Inner shell. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is apparent that the embodiments described are only a portion of the embodiments of the utility model, not all of them. The embodiments and features in the embodiments of this application may be combined with each other unless there is a conflict. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the utility model without creative effort are also within the scope of protection of the utility model.

[0037] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, "multiple" means more than two. Furthermore, the technical solutions of the various embodiments may be combined with each other, but this must be based on the premise that they can be implemented by a person of ordinary skill in the art. If the combination of technical solutions is mutually inconsistent or cannot be implemented, it shall be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0039] See also Figure 1-3 , a removable plastic spoke:

[0040] (1) Spoke body structure

[0041] Air intake holes and intake pipes

[0042] The spoke body 1 is evenly distributed with eight air inlet holes 2 near the outer rim. The even distribution of these holes 2 helps achieve balanced air flow or pressure regulation around the spoke. For example, in certain special applications, such as when the spoke interior requires ventilation and heat dissipation or pressure equalization with the outside air, the air inlet holes 2 can serve as channels for gas exchange.

[0043] An air intake pipe 3 is installed within each air intake hole 2. The air intake pipe 3 not only connects the outer shell 11 and the inner shell 12 but also plays a crucial role in gas transmission. The outer end of the air intake pipe 3 is flush with the outer surface of the outer shell 11. This design results in a smooth and even outer surface for the spokes, preventing the risk of scratches from external objects caused by the protruding air intake pipe and maintaining the spokes' aesthetic appearance. The inner cross-section of the air intake pipe 3 is flush with the inner surface of the inner shell 12, ensuring the regularity of the inner shell's interior space.

[0044] Outer shell and inner shell

[0045] The spoke body 1 is a double-layer structure, composed of an outer shell 11 and an inner shell 12. The cross-sections of the outer shell 11 and the inner shell 12 are arranged in a "J" shape. This "J"-shaped design structure has various functions. For the outer shell 11, its outward protrusion can increase the overall strength of the spoke, and when it withstands external impact forces such as the impact force generated by road bumps, it can effectively disperse stress and protect the internal structure of the spoke. The "J"-shaped structure of the inner shell 12 helps to rationally arrange other components in the internal space or form specific air flow channels inside. At the same time, this double-layer structure also provides better thermal insulation performance for the spoke. For example, in a high temperature environment, it can reduce the transfer of external heat inward and protect related internal components from the influence of high temperature.

[0046] (2) Connection structure

[0047] Inner connecting ring

[0048] The outer shell 11 and inner shell 12 are connected near the inner ring by an inner connecting ring 4. The main function of the inner connecting ring 4 is to enhance the stability of the connection of the inner ring portion of the spoke. Since the inner ring may be subjected to forces from various directions during the operation of the spoke, such as axial and radial forces, the inner connecting ring 4 effectively and evenly transmits these forces to the outer shell 11 and inner shell 12, preventing structural deformation or separation of the inner ring portion. Furthermore, the inner connecting ring 4 can also limit the relative displacement of the outer shell 11 and inner shell 12 at the inner ring to a certain extent, ensuring the dimensional accuracy of the inner ring of the spoke, which is crucial for the precise fit of the spoke with other components such as the hub.

[0049] External connecting ring

[0050] The outer shell 11 and inner shell 12 are connected near the outer ring by an outer connecting ring 5. The outer connecting ring 5 provides a similar connection and reinforcement for the outer ring. The outer ring of the spoke may be subject to greater external forces, such as lateral forces. The outer connecting ring 5 enhances the overall structural strength of the outer ring, tightly integrating the outer shell 11 and inner shell 12 to jointly resist external forces. Furthermore, the outer connecting ring 5 helps maintain the shape stability of the spoke outer ring, ensuring that the spoke outer ring does not significantly change in size during installation and use, thereby ensuring a smooth fit with other related components, such as the tire.

[0051] Internal reinforcement connecting ring

[0052] An inner reinforcing ring 6 connects the outer shell 11 and the inner shell 12. This ring further enhances the connection strength between the two-layer spoke structure. It provides additional support between the outer shell 11 and the inner shell 12. Especially when the spoke is subjected to complex external forces, such as torsional and impact forces, the inner reinforcing ring 6 effectively prevents localized deformation or separation between the outer shell 11 and the inner shell 12, thereby ensuring the integrity and reliability of the spoke structure.

[0053] (3) Material selection

[0054] The outer shell 11, inner shell 12, intake pipe 3, inner connecting ring 4, outer connecting ring 5, and inner reinforcing connecting ring 6 are all made of polyurethane. Polyurethane has excellent wear resistance, which helps the spokes maintain their structural integrity during prolonged contact and friction with other components, reducing wear and extending their service life. It also offers strong corrosion resistance, effectively preventing corrosion in humid environments and when exposed to certain chemicals, ensuring stable performance of the spokes. Furthermore, the polyurethane material has a certain degree of elasticity, which acts as a buffer against impact forces on the spokes, absorbing some of the energy and minimizing damage to the spokes themselves and other connected components.

[0055] (4) Bolt positioning holes

[0056] Eight bolt positioning holes 7 are evenly spaced near the inner rim of the spoke body 1. These holes are used to secure the spoke to other components, such as the hub. Bolts passing through these holes ensure accurate installation of the spoke to the corresponding component, and the tightening action of the bolts ensures a secure and reliable connection between the spoke and the hub.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A detachable plastic wheel spoke, comprising a wheel spoke body (1), characterized in that: The spoke body (1) is evenly provided with eight air inlet holes (2) near the outer ring, and an air inlet pipe (3) is installed inside each of the air inlet holes (2); The spoke body (1) is a double-layer structure and is specifically composed of an outer shell (11) and an inner shell (12). The cross-sections of the outer shell (11) and the inner shell (12) are arranged in a "J" shape. The air intake pipe (3) serves as a component connecting the outer shell (11) and the inner shell (12). The outer shell (11) and the inner shell (12) are connected by an inner connecting ring (4) near the inner circle. The outer shell (11) and the inner shell (12) are connected by an outer connecting ring (5) near the outer circle. An inner reinforcing connecting ring (6) is also connected between the outer shell (11) and the inner shell (12).

2. The detachable plastic spoke according to claim 1, characterized in that: The outer end surface of the air inlet pipe (3) is flush with the outer surface of the housing (11).

3. The detachable plastic spoke according to claim 1, characterized in that: The inner cross section of the air inlet pipe (3) is flush with the inner surface of the inner shell (12).

4. The detachable plastic spoke according to claim 1, characterized in that: The outer shell (11), the inner shell (12), the air inlet pipe (3), the inner connecting ring (4), the outer connecting ring (5) and the inner reinforcing connecting ring (6) are all made of polyurethane material.

5. The detachable plastic spoke according to claim 1, characterized in that: Eight bolt positioning through holes (7) are evenly arranged on the spoke body (1) near the inner ring.

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