CN217863542U

CN217863542U - Wheel hub and electric bicycle

Info

Publication number: CN217863542U
Application number: CN202220775726.2U
Authority: CN
Inventors: 吴彦静; 赵光金; 冯国庆; 王保兰; 杨迎雪
Original assignee: Tianjin Aima Vehicle Technology Co Ltd
Current assignee: Tianjin Aima Vehicle Technology Co Ltd
Priority date: 2022-04-02
Filing date: 2022-04-02
Publication date: 2022-11-22
Anticipated expiration: 2032-04-02

Abstract

The utility model belongs to the technical field of electric bicycle, a wheel hub and electric bicycle is disclosed. The conventional electric bicycle hub needs a complex machining process, often causes the problem of poor attractiveness of parts, and needs to be added with other steps to ensure the appearance. The wheel hub comprises a wheel rim, a drum brake and wheel spokes, wherein the wheel rim is used for mounting and supporting a tire, the drum brake is used for mounting a brake component, and the wheel spokes are uniformly distributed between the wheel rim and the drum brake to connect the wheel rim and the drum brake; this wheel hub still includes the plastic shielding piece, and this plastic shielding piece detachably is fixed in on the spoke for shelter from the whole exposed surface of spoke, and drum stop and the partial exposed surface of rim, can shelter from because the partial surface or the part of the poor outward appearance that processing produced. The plastic shielding piece is excellent in processing performance and low in processing cost, processing steps can be saved, and appearance requirements can be met.

Description

Wheel hub and electric bicycle

Technical Field

The utility model relates to an electric bicycle technical field especially relates to a wheel hub and electric bicycle.

Background

Electric bicycles are one of the most common vehicles, and the wheels are important parts of the electric bicycles. In the prior art, the five-claw aluminum alloy wheel hub is mostly adopted, the aluminum alloy can meet the requirement of mechanical strength, and the wheel is attractive in whole due to good processing performance, so that the higher requirement of people on appearance is met. However, the price of aluminum itself is high, which results in high overall cost and poor economic performance of the electric bicycle. Still adopt iron system wheel hub, but iron wheel hub needs to lead to pleasing to the eye relatively poor problem of degree through steps such as rim shaping, spoke punching press, drum processing of stopping when adding man-hour, in order to guarantee beautifully, often need increase baking finish or other processing steps, has increased the processing cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wheel hub and electric bicycle not only can guarantee the outward appearance of wheel, but also can reduce electric motor car manufacturing cost.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a wheel hub, which comprises a wheel rim for mounting and supporting a tire; the drum brake is used for installing a brake component; the spokes are uniformly distributed between the rim and the drum brake and fixedly connect the rim and the drum brake; the plastic shielding piece is detachably fixed on the spoke and used for shielding all exposed surfaces of the spoke and partial exposed surfaces of the drum brake and the rim.

Preferably, the plastic shielding piece comprises a first plastic shielding piece and a second plastic shielding piece, the first plastic shielding piece (40) is used for shielding the whole exposed surface of one side of the spoke (30) and the part exposed surface of one side of the drum brake (20) and one side of the rim (10), the second plastic shielding piece (50) is used for shielding the whole exposed surface of the other side of the spoke (30) and the part exposed surface of the other side of the drum brake (20) and the other side of the rim (10).

Preferably, the spoke is provided with a hollow portion, the first plastic shielding piece is provided with a first protruding portion, the second plastic shielding piece is provided with a second protruding portion, the first protruding portion and the second protruding portion can be matched with the hollow portion in an inserted mode, and the first protruding portion is abutted to the second protruding portion.

Preferably, the wheel hub further comprises a positioning pin arranged on the first plastic shielding piece, and the positioning pin is sequentially matched with the spoke and the second plastic shielding piece in an inserting mode.

Preferably, the positioning post abuts against the spoke.

Preferably, the wheel hub further comprises a screw, a threaded hole is formed in the positioning pin, the second plastic shielding piece is provided with a through hole, the through hole is communicated with the positioning hole, and the screw penetrates through the through hole and is in threaded connection with the threaded hole.

Preferably, the spoke is respectively clamped with the first plastic shielding piece and the second plastic shielding piece.

Preferably, the rim, the drum brake and the spoke are made of iron.

To achieve the purpose, the utility model also provides an electric bicycle, and this electric bicycle includes foretell wheel hub.

The utility model has the advantages that:

the utility model provides an electric bicycle hub, which comprises a rim, a drum brake and spokes, wherein the rim is used for mounting and supporting a tire, the drum brake is used for mounting a brake component, and the spokes are uniformly distributed between the rim and the drum brake to connect the rim and the drum brake; this wheel hub still includes the plastic shielding piece, and this plastic shielding piece detachably is fixed in on the spoke for shelter from the whole exposed surface of spoke and the drum and stop and the partial exposed surface of rim, the processing properties of plastic shielding piece is good, and can be according to different consumer hobbies, designs different colour and pattern, and not only the processing cost is low, can satisfy consumer to electric motor car wheel hub's outward appearance needs moreover.

The utility model provides an electric bicycle, this electric bicycle installs above-mentioned wheel hub, can reduce the electric bicycle cost, and this wheel hub can design different patterns, has increased electric bicycle's appeal.

Drawings

Fig. 1 is a schematic view of a wheel hub according to an embodiment of the present invention;

fig. 2 is an exploded view of a hub according to an embodiment of the present invention;

FIG. 3 is a schematic view of a first plastic shield according to an embodiment of the present invention;

FIG. 4 is a partially enlarged view of a first plastic shield A according to an embodiment of the present invention;

FIG. 5 is a schematic view of a second plastic shield according to an embodiment of the present invention;

FIG. 6 is a partially enlarged view of a second plastic shield B according to an embodiment of the present invention;

FIG. 7 is a partial enlarged view of a second plastic shield C according to an embodiment of the present invention;

fig. 8 is a schematic view of a spoke according to an embodiment of the present invention.

In the figure:

10. a rim;

20. drum braking;

30. spoke 31, hollow part 32, mounting groove 33, hole;

40. a first plastic shielding piece 41, a first convex part 42, a positioning pin 43 and a threaded hole,

44. a first buckle;

50. a second plastic shielding piece 51, a second protrusion 52, a positioning post 53, a positioning hole,

54. via hole, 55, second snap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referenced item or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

With the continuous increase of automobile keeping quantity in society, the traffic pressure in cities is more and more prominent, and more people select electric bicycles as the most main travel mode. The electric bicycle is environment-friendly, energy-saving and money-saving. At present, the electric bicycle is very mature in technology, consumers pay more attention to price and appearance when selecting, and therefore manufacturers are required to produce products with attractive appearance and low price on the basis of ensuring performance so as to increase market competitiveness.

As shown in fig. 1, the utility model provides a novel wheel hub, including rim 10, drum brake 20 and spoke 30, rim 10 is used for the installation and supports the tire, and sets up the gas pin hole on rim 10, and drum brake 20 is used for installing brake assembly, and spoke 30 is used for stopping 20 fixed connection with rim 10 and drum. In the present embodiment, the number of the spokes 30 is 3, and the fixing connection manner is welding. The hub also includes a plastic shield that shields all of the exposed face of the disc 30, as well as some of the exposed face of the drum brake 20 and rim 10. In the welding process, welding spots and welding marks are very easily formed on the metal surface, the plastic shielding piece can shield the welding spots and the welding marks left on the metal surface in the welding process, welding spots can be shielded, and the appearance of the electric vehicle can be ensured; because the plastic part is injection moulding, the product uniformity is good, and the processing cost is low, can reduce the whole cost of electric bicycle.

Furthermore, the plastic shielding piece can be designed into different colors and patterns according to market demands, so that the diversity, the attraction and the market competitiveness of products are improved.

Further, as shown in fig. 2, the plastic shield includes a first plastic shield 40 and a second plastic shield 50, the first plastic shield 40 is used for shielding all exposed surfaces of one side of the spoke 30 and a part of exposed surfaces of one side of the drum brake 20 and one side of the rim 10, and the second plastic shield 50 is used for shielding all exposed surfaces of the other side of the spoke 30 and a part of exposed surfaces of the other side of the drum brake 20 and the other side of the rim 10. In this embodiment, the plastic shielding member is disposed along the shape of the spoke 30, and a hollow portion is formed between the spoke 30 and the spoke 30.

Further, as shown in fig. 3 to 8, a hollow portion 31 is disposed on the spoke 30, the first plastic shielding member 40 is provided with a first protruding portion 41, the second plastic shielding member 50 is provided with a second protruding portion 51, the first protruding portion 41 and the second protruding portion 51 can be in plug-in fit with the hollow portion 31 on the spoke 30, and the first protruding portion 41 abuts against the second protruding portion 51. Specifically, in this embodiment, the spoke 30 is in a "C" shape, the hollow portion 31 is a concave portion in the "C" shape, the mounting grooves 32 are disposed on two sides of the hollow portion 31, and the mounting grooves 32 on the two sides are respectively engaged with the first fastener 44 and the second fastener 55. The design can enable the spoke 30 to be mutually supported with the first plastic shielding piece 40 and the second plastic shielding piece 50 respectively, the first plastic shielding piece 40, the second plastic shielding piece 50 and the spoke 30 can be positioned more accurately, and the stability of the first plastic shielding piece 40 and the second plastic shielding piece 50 is improved.

Further, as shown in fig. 3 to 8, the first plastic shielding member 40 is provided with a positioning pin 42, and the positioning pin 42 is inserted into and engaged with the spoke 30 and the second plastic shielding member 50. Specifically, in the present embodiment, the spoke 30 is provided with a hole 33, the hole 33 can be inserted into and matched with the positioning pin 42, the second plastic shielding member 50 is provided with a positioning column 52, the positioning column 52 is provided with a positioning hole 53, and the positioning hole 53 can be inserted into and matched with the positioning pin 42 of the first plastic shielding member 40. This design allows the positioning pin 42 of the first shield member to be inserted into and fitted into the hole 33 of the spoke 30 and the positioning hole 53 of the second shield member, respectively, and facilitates positioning during assembly.

Further, as shown in fig. 5 and 6, the positioning posts 52 on the second plastic shield 50 can abut against the spokes 30. The support is added between the second plastic shield 50 and the spoke 30, so that the second plastic shield 50 is more stably installed and is not easy to deform.

Further, as shown in fig. 7, a through hole 54 is formed in the second plastic shield 50, a threaded hole 43 is formed in the positioning pin 42, and a locking screw is screwed with the threaded hole 43 through the through hole 54 of the second plastic shield 50 and the positioning hole 53 of the positioning post 52 of the first plastic shield 40 in sequence, so that the first plastic shield 40 and the second plastic shield 50 are fixed, and the spoke 30 is clamped between the first shield and the second shield.

Specifically, in the actual installation process, the drum brake 20, the rim 10 and the 3 spokes 30 are welded at first; then, the positioning column 52 of the first plastic shielding piece 40 is in inserting fit with the hole 33 of the spoke 30, meanwhile, the first protruding part 41 is in inserting fit with the hollow part 31 of the spoke 30, and then, the buckle of the first plastic shielding piece 40 is clamped with the spoke 30; then, the positioning hole 53 of the second plastic shielding piece 50 is matched and inserted with the positioning column 52 of the first plastic shielding piece 40, meanwhile, the second protruding part 51 is inserted and matched with the hollow part 31 of the spoke 30, and then, the buckle on the second plastic shielding piece 50 is clamped with the spoke 30; finally, the locking screw is matched and locked with the threaded hole 43 on the first plastic shielding piece 40 through the through hole 54 on the second plastic shielding piece 50 and the positioning hole 53 on the positioning column 52 of the first plastic shielding piece 40, so that the stability and the attractiveness of the hub are greatly ensured.

Further, the spoke 30 can be engaged with the first plastic shield 40 and the second plastic shield 50. In this embodiment, specifically, the spoke 30 is provided with the mounting groove 32, the first plastic shielding member 40 and the second plastic shielding member 50 are respectively provided with the first buckle 44 and the second buckle 55, an interval exists between the buckles, after the installation is completed, the first buckle 44 on the first plastic shielding member 40 and the second buckle 55 on the second plastic shielding member 50 are arranged at an interval, and the first buckle 44 on the first plastic shielding member 40 and the second buckle 55 on the second plastic shielding member 50 are connected to two sides of the mounting groove 32 of the spoke 30 in a clamping manner. The design can ensure that the first plastic shielding piece 40 and the second plastic shielding piece 50 are accurately positioned and stably installed.

Further, in the present embodiment, the material of the rim 10, the drum brake 20, and the disc 30 is iron.

The embodiment also provides an electric bicycle which comprises the hub.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A hub, comprising:

a rim (10), said rim (10) being for mounting and supporting a tyre;

a drum brake (20), the drum brake (20) being used for mounting a brake assembly;

the spokes (30) are uniformly distributed between the rim (10) and the drum brake (20) and fixedly connect the rim (10) and the drum brake (20);

the plastic shielding piece is detachably fixed on the spoke (30) and used for shielding all exposed surfaces of the spoke (30) and partial exposed surfaces of the rim (10) and the drum brake (20).

2. The hub according to claim 1, characterized in that the plastic shield comprises a first plastic shield (40) and a second plastic shield (50), the first plastic shield (40) being adapted to shield the entire exposed surface of one side of the spoke (30) and the partially exposed surface of one side of the drum brake (20) and of one side of the rim (10), the second plastic shield (50) being adapted to shield the entire exposed surface of the other side of the spoke (30) and of the other side of the drum brake (20) and of the other side of the rim (10).

3. Wheel hub according to claim 2, characterized in that the wheel disc (30) is provided with a hollow (31), the first plastic shield (40) is provided with a first projection (41), the second plastic shield (50) is provided with a second projection (51), both the first projection (41) and the second projection (51) can be in a plug-in fit with the hollow (31), and the first projection (41) abuts against the second projection (51).

4. The wheel hub according to claim 2, further comprising a positioning pin (42) disposed on the first plastic shield (40), wherein the positioning pin (42) is inserted into and fitted with the spoke (30) and the second plastic shield (50) in sequence.

5. The wheel hub according to claim 4, wherein the second plastic shielding piece (50) is provided with a positioning column (52), the positioning column (52) is provided with a positioning hole (53), and the positioning hole (53) is in inserted fit with the positioning pin (42).

6. Hub according to claim 5, wherein the positioning studs (52) abut the spokes (30).

7. The hub according to claim 5, further comprising a screw, wherein a threaded hole (43) is formed in the positioning pin (42), a through hole (54) is formed in the second plastic shade (50), the through hole (54) is communicated with the positioning hole (53), and the screw penetrates through the through hole (54) and is screwed in the threaded hole (43).

8. Hub according to claim 2, wherein the spokes (30) are snapped into the first and second plastic shields (40, 50), respectively.

9. Hub according to any of claims 1-8, wherein the material of the rim (10), the drum brake (20) and the spokes (30) is iron.

10. An electric bicycle, characterized in that it comprises a hub according to any one of claims 1 to 9.