A rim nut protection device

Abstract

This utility model discloses a rim nut protection device, relating to the field of rim accessory technology, applicable to the pressure plate type rims of large material handling vehicles such as 25-46 ton counterbalance forklifts and front stackers. The device includes an integrally formed nut protection plate, which is installed on the outside of the pressure plate type rim and fixed by the rim nut on the wheel hub. The plate has stepped holes and an optional clearance groove. The stepped holes provide clearance for the rim nut installation, and their depth is greater than or equal to the exposed height of the rim bolts and nuts, effectively preventing damage from impacts. The clearance groove can be adapted to the valve of an inflatable tire; if removed, it can be adapted to solid tires, achieving uniform installation and use. This utility model integrates nut protection and rim clamping functions, replacing the traditional rim clamping plate and a single nut protection sleeve. It not only improves installation stability and protection, reducing the risk of nut loosening and damage, but also reduces the types of materials used, lowering material management costs. It is highly versatile and practical.

Description

Technical Field

[0001] This utility model relates to a wheel rim nut protection device, belonging to the technical field of wheel rim accessories. Background Technology

[0002] In large material handling vehicles such as 25-46 ton counterbalance forklifts and reach stackers, the steering axle rims mostly adopt a plate-type structure. After installation, the rim bolts and nuts are directly exposed on the outside of the tire. During daily operation and driving, the exposed rim bolts and nuts are very prone to collisions with obstacles.

[0003] If an impact occurs, it may damage the hexagonal edge of the nut or the thread of the bolt: damage to the hexagonal edge of the nut will affect the normal use of the socket and significantly reduce the efficiency of tire removal operations; damage to the bolt thread will directly prevent the tire from being removed normally, seriously affecting vehicle maintenance operations.

[0004] Currently, the conventional nut protection solution involves configuring a protective sleeve for each nut. However, this solution has significant drawbacks: the protective sleeves lack installation stability and protection, and are easily damaged or detached after impacts. Furthermore, some manufacturers on the market do not provide any nut protection structure for wheel rims, leading to exposed nuts being damaged or loosened due to impacts. This not only causes frequent maintenance problems but also poses serious safety hazards.

[0005] Therefore, there is an urgent need for a device that can effectively protect the rim nut and improve installation stability and compatibility to address the shortcomings of existing technologies. Utility Model Content

[0006] To address the problems of poor stability, insufficient protection, low adaptability, and high material costs in existing wheel rim nut protection solutions, this utility model provides a wheel rim nut protection device, specifically achieving the following objectives: Provide effective protection for the rim nuts and bolts to prevent damage from impacts; It replaces the traditional rim pressure plate to achieve the pressing of the pressure plate type rim retaining ring; It is compatible with both pneumatic and solid tires, improving the device's versatility.

[0007] This utility model is achieved through the following technical solution: a rim nut protection device, including a nut protection plate, which is installed on the outside of a pressure plate type rim and fixed by a rim nut on a bridge hub; the nut protection plate has a stepped hole, which is used to make way for the installation of the rim nut, and the depth of the stepped hole is greater than or equal to the exposed height of the rim bolt and the rim nut, ensuring that the rim nut and bolt are completely accommodated in the stepped hole and avoiding external impact.

[0008] Furthermore, the nut protection plate is also provided with a clearance groove, which is used to allow space for the valve of the pneumatic tire to prevent interference between the valve and the nut protection plate. Depending on the actual use requirements, the clearance groove can be set to different shapes such as round or square. If it is suitable for solid tires, the clearance groove can be directly eliminated to achieve unified installation and use of pneumatic tires and solid tires.

[0009] Furthermore, the nut protection plate is manufactured using an integrated molding process, resulting in high overall strength. When impacted by external obstacles, it can evenly distribute the impact force to each rim nut, preventing excessive local stress that could cause the rim nut to loosen. At the same time, each tire only needs to be equipped with one nut protection plate, which simplifies the installation process, improves the reliability of pressing, and reduces the amount of materials required, thus lowering material management costs, compared to the traditional solution of one small pressure plate for each rim nut.

[0010] The beneficial effects of this utility model are: strong protection: the stepped hole completely accommodates the rim nut and bolt, effectively avoiding damage to the hexagonal edge of the nut and the thread of the bolt caused by bumps during driving, and ensuring the normal progress of tire disassembly operations; Functional integration: The nut protection plate can not only protect the nut, but also replace the traditional rim pressure plate to tighten the rim retaining ring, eliminating the need for an additional pressure plate and reducing the number of parts; High stability: The one-piece molded nut protection plate has high overall strength and can evenly distribute the force when it is bumped, reducing the risk of the rim nut loosening. Compared with the traditional single protective sleeve, the installation stability and protection are greatly improved. Good versatility: With the flexible design of the clearance groove, it can be adapted to the installation and use of both pneumatic and solid tires, without the need to design separate protective devices for different types of tires. Cost reduction: The use of materials such as pressure plates and individual protective sleeves has been reduced, simplifying the material management process and reducing production and maintenance costs. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] Figure 1 This is a schematic diagram of the structure of the nut protection plate of this utility model; Figure 2 This is an assembly diagram of the overall structure of this utility model and the tire assembly; Figure 3 This is a cross-sectional view of the assembly of this utility model with a pressure plate type wheel rim and a bridge wheel hub.

[0013] In the diagram: 1. Nut protection plate; 2. Rim nut; 3. Tire assembly; 4. Axle hub; 11. Stepped hole; 12. Clearance groove; 31. Tire; 32. Pressure plate type rim. Detailed Implementation

[0014] 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.

[0015] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0016] like Figures 1 to 3 The illustrated rim nut protection device includes an integrally formed nut protection plate 1, with one nut protection plate 1 for each tire. During installation, the nut protection plate 1 is attached to the outer side of the pressure plate type rim 32, so that the rim bolts on the axle hub 4 pass through the stepped holes 11 on the nut protection plate 1, and are then tightened and fixed by the rim nut 2. At this time, the nut protection plate 1 is tightly pressed against the rim retaining ring of the pressure plate type rim 32, replacing the traditional rim pressure plate to achieve the pressing function.

[0017] The depth of the stepped hole 11 is designed to be greater than or equal to the exposed height of the rim bolt and rim nut 2, ensuring that the rim nut 2 and bolt are completely contained inside the stepped hole 11, preventing external obstacles from directly hitting the nut and bolt when the vehicle is driving or operating.

[0018] If it is suitable for pneumatic tires, a clearance groove 12 is made on the nut protection plate 1 at the position corresponding to the valve of the pneumatic tire to prevent the valve from interfering with the nut protection plate 1; if it is suitable for solid tires, the clearance groove 12 can be directly removed without replacing the main structure of the nut protection plate 1, so as to achieve the unified installation and use of the two types of tires.

[0019] In actual use, if an external obstacle hits the nut protection plate 1, the one-piece molded protection plate will evenly distribute the impact force to all the rim nuts 2, avoiding excessive local force that could cause the nuts to loosen. At the same time, the protection plate itself is strong enough to resist normal impacts and is not easily damaged or detached, effectively solving the problems of poor stability and insufficient protection of traditional protective sleeves.

[0020] Furthermore, compared to the traditional solution of "each nut equipped with a small pressure plate + protective sleeve", this device only requires one nut protection plate 1 to achieve the functions of clamping and protection, reducing the number of parts, simplifying the material procurement and inventory management process, and significantly reducing material management costs.

[0021] In summary, this rim nut protection device, through its integrated and universal design, effectively solves the shortcomings of existing rim nut protection solutions. It has the advantages of strong protection, high stability, good versatility, and low cost, and is suitable for widespread application on large material handling vehicles such as 25-46 ton counterbalance forklifts and front stackers.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rim nut protection device, characterized in that, Includes a nut protection plate (1), which is installed on the outside of the pressure plate type rim (32) and fixed by the rim nut (2) on the bridge hub (4); the nut protection plate (1) is provided with a stepped hole (11), which is used to make way for the installation of the rim nut (2), and the depth of the stepped hole (11) is greater than or equal to the exposed height of the rim bolt and the rim nut (2).

2. The rim nut protection device according to claim 1, characterized in that, The nut protection plate (1) is also provided with a clearance groove (12), which is used to make way for the valve of the inflatable tire, and the clearance groove (12) can be set to different shapes.

3. The rim nut protection device according to claim 1, characterized in that, The nut protection plate (1) is an integrally formed structure, and each tire is equipped with one nut protection plate (1).

4. A rim nut protection device according to claim 1, characterized in that, The nut protection plate (1) can be adapted to install pneumatic tires or solid tires.

5. A rim nut protection device according to claim 1, characterized in that, The nut protection plate (1) is used to replace the rim pressure plate to press the rim retaining ring of the pressure plate type rim (32).

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