Plastic hub

Abstract

The utility model provides a plastic hub, which relates to the technical field of handcarts, comprises a rim, a spoke and a shaft hole, and is characterized in that the spoke is pentagram-shaped, the outer edge of the spoke is provided with a first reinforcing rib protruding towards two sides, a hollow area is arranged in each of five corners of the spoke, a reflector is arranged in each hollow area, and the reflector is arranged in the shaft hole. A circle of annular reflective tape is arranged on the outer side of the rim, and second reinforcing ribs are arranged at the positions, connected with the inner ring of the rim, of the outer sides of the first reinforcing ribs. The utility model has the advantages of light weight and good supporting strength.

Description

Technical Field

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

[0002] Plastic wheel hub is a widely used basic component, mostly used in various wheelchairs, strollers and other trolleys. Traditional wheel hubs are old, heavy and have poor support strength. They not only waste materials and have poor support strength, but also have poor shock absorption effect, resulting in high manufacturing costs and short service life. Users sitting in wheelchairs equipped with such wheel hubs also feel less comfortable. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the utility model aims to provide a plastic wheel hub.

[0004] Its main technical solution is: a plastic wheel hub, including a rim, spokes and an axle hole, the spokes are in the shape of a five-pointed star, the outer edges of the spokes are provided with first reinforcing ribs protruding to both sides, the five corners of the spokes are each provided with a hollow area, a reflective plate is installed in the hollow area, a ring-shaped reflective tape is provided on the outer side of the rim, and a second reinforcing rib is provided at the position where the outer side of the first reinforcing rib connects with the inner circle of the rim.

[0005] A further technical solution is that a circle of tubular protrusion structures is provided on the outer side of the shaft hole.

[0006] A further technical solution is that a third reinforcing rib is provided between the protruding structure and the first reinforcing rib, and the third reinforcing rib is evenly distributed around the axis of the axial hole.

[0007] A further technical solution is that the shaft hole is a circular through hole.

[0008] A further technical solution is that the shaft hole is a detachable structure, the detachable shaft hole is in the shape of a polygonal column, a circular through hole with a keyway is provided in the center thereof, and the detachable shaft hole is installed in the center of the spoke.

[0009] The beneficial effects of the utility model are:

[0010] 1. The outer edge of the spoke is provided with a first reinforcing rib protruding to both sides, a second reinforcing rib is provided at the position where the outer side of the first reinforcing rib is connected to the inner side of the spoke, and a third reinforcing rib is provided between the protruding structure and the first reinforcing rib, which ensures the overall rib support strength of the hub and reduces the weight of the hub and the use of raw materials;

[0011] 2. The shaft hole is a detachable structure. The detachable shaft hole is a polygonal column with a circular through hole with a keyway in the center. The detachable shaft hole is installed in the center of the spoke to avoid slipping at the shaft hole. It is also easy to repair and replace, reducing the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0013] Figure 1 It is a structural schematic diagram of Example 1;

[0014] Figure 2 This is a schematic diagram of the structure of Example 2.

[0015] Among them: 1. reflective tape; 2. first reinforcing rib; 3. rim; 4. reflective plate; 5. second reinforcing rib; 6. spoke; 7. axle hole; 8. raised structure; 9. third reinforcing rib. DETAILED DESCRIPTION

[0016] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0017] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] Example 1

[0019] A plastic wheel hub, comprising a wheel rim 3, a wheel spoke 6 and an axle hole 7, wherein the wheel spoke 6 is in a five-pointed star shape, and the outer edge of the wheel spoke 6 is provided with a first reinforcing rib 2 protruding to both sides, and each of the five corners of the wheel spoke 6 is provided with a hollow area, and a reflector 4 is installed in the hollow area, and a ring-shaped reflective tape 1 is provided on the outer side of the wheel rim 3, and a second reinforcing rib 5 is provided at the position where the outer side of the first reinforcing rib 2 and the inner circle of the wheel rim 3 are connected. A circle of tubular protruding structures 8 are provided on the outer side of the axle hole 7. A third reinforcing rib 9 is provided between the protruding structure 8 and the first reinforcing rib 2, and the third reinforcing rib 9 is evenly distributed around the axis of the axle hole 7. The axle hole is a circular through hole.

[0020] Example 2

[0021] On the basis of Example 1, the shaft hole 7 adopts a detachable structure. The detachable shaft hole is in the shape of a polygonal column, and a circular through hole with a keyway is provided in the center thereof. The detachable shaft hole is installed in the center of the spoke 3.

[0022] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

Claims

1. A plastic wheel hub, comprising a wheel rim, a wheel spoke and an axle hole, characterized in that: The spokes are in the shape of a five-pointed star, and the outer edge of the spokes is provided with a first reinforcing rib protruding to both sides. A hollow area is provided in each of the five corners of the spokes, and a reflective plate is installed in the hollow area. A ring-shaped reflective tape is provided on the outer side of the rim, and a second reinforcing rib is provided at the position where the outer side of the first reinforcing rib connects with the inner circle of the rim.

2. A plastic wheel hub according to claim 1, characterized in that: A circle of tubular protrusion structure is arranged on the outer side of the shaft hole.

3. A plastic wheel hub according to claim 2, characterized in that: A third reinforcing rib is provided between the protruding structure and the first reinforcing rib, and the third reinforcing rib is evenly distributed around the axis of the shaft hole.

4. The plastic wheel hub according to claim 1, characterized in that: The shaft hole is a circular through hole.

5. The plastic wheel hub according to claim 1, characterized in that: The shaft hole is a detachable structure, and the detachable shaft hole is in the shape of a polygonal column, and a circular through hole with a keyway is arranged at the center thereof. The detachable shaft hole is installed at the center of the spoke.

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