One-way flywheel assembly and bicycle

Abstract

The utility model discloses a one -way flywheel assembly and bicycle, including fluted wheel and one -way flywheel, the outer annular surface of fluted wheel is opened with V -groove, the included angle beta of V -groove is 130~135 DEG, the bottom of V -groove is equipped with the fillet, the inner annular surface of fluted wheel is equipped with four mounting lug, the outer annular surface of one -way flywheel is equipped with the connecting lug of corresponding mounting lug, and mounting lug and connecting lug are connected through bolt. The utility model discloses the mode of fluted wheel and one -way flywheel combination, the outer annular surface of fluted wheel is opened with V -groove, the included angle beta of V -groove is 130~135 DEG, can reduce steel wire rope slip, the phenomenon of appearing bite rope situation and the phenomenon of appearing jam when reversing in the positive and negative winding of steel wire rope in the riding.

Description

Technical Field

[0001] This utility model relates to the field of bicycles, specifically to a one-way flywheel assembly and a bicycle. Background Technology

[0002] A bicycle is a two-wheeled mode of transportation, consisting of a frame, two wheels, two pedals, and a chain. It can be ridden manually, requiring no fuel, making it a green and healthy mode of transportation. Bicycles have wide applications in transportation, sports, and recreation, and are often referred to as "a crystallization of human ingenuity." There are many types of bicycles, including touring bikes, road bikes, mountain bikes, and folding bikes.

[0003] Patent publication number CN 219565380 U discloses a steel wire rope traction variable torque bicycle. However, in actual use, the steel wire rope of the bicycle's one-way flywheel is prone to slippage, and the steel wire rope will bite when winding (the lower layer is not fully wound before winding the upper layer), causing the pedals to not rise when reversing, resulting in a jamming phenomenon. Summary of the Invention

[0004] The purpose of this utility model is to provide a one-way flywheel assembly and bicycle that overcomes the shortcomings of the prior art.

[0005] The technical solution of this utility model:

[0006] A one-way flywheel assembly includes a Geneva 1 and a one-way flywheel 2.

[0007] The outer annular surface of the grooved wheel 1 has a V-shaped groove with an included angle β of 130° to 135°. The bottom of the V-shaped groove has a rounded corner. The inner annular surface of the grooved wheel has four mounting ears.

[0008] The outer annular surface of the one-way flywheel is provided with corresponding mounting ears.

[0009] The mounting ears and connecting ears are connected by bolts.

[0010] Furthermore, the fillet radius is 1.5–2 mm.

[0011] Furthermore, the grooved wheel is made of ductile iron.

[0012] This utility model also provides a bicycle, including: the above-mentioned one-way flywheel assembly.

[0013] Compared to the unidirectional flywheel in CN 219565380 U, this utility model adopts a combination of a grooved wheel and a unidirectional flywheel. The outer annular surface of the grooved wheel has a V-shaped groove with an included angle β of 130° to 135°, which can reduce the slippage of the wire rope, the situation of the wire rope getting tangled in both directions during riding, and the phenomenon of jamming when reversing. Attached Figure Description

[0014] Figure 1 This is a side sectional view of a preferred embodiment of the present invention;

[0015] Figure 2 This is a front view of a preferred embodiment of the present invention;

[0016] Figure 3 This is a front view of the grooved wheel in a preferred embodiment of the present invention;

[0017] Figure 4 This is a front view of the unidirectional flywheel in a preferred embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of a preferred embodiment of the present utility model;

[0019] Figure 6 This is another structural schematic diagram of a preferred embodiment of the present invention;

[0020] In the diagram: 1. Grooved wheel; 2. One-way flywheel; 3. V-groove; 4. Mounting lug; 5. Connecting lug; 6. Bolt. Detailed Implementation

[0021] The present invention can be further described through the following embodiments; however, the scope of the present invention is not limited to the following embodiments. It should be understood that the embodiments described herein are disclosed by way of illustration only, and the present invention is not intended to limit its scope to the details of the construction and arrangement of the components described below or illustrated in the figures. Furthermore, in describing preferred embodiments, specific terminology will be used for clarity. It should be understood that each specific term includes: all technical equivalents that operate in a similar manner to achieve a similar purpose.

[0022] Example: Please refer to Figures 1 to 6As shown, a one-way flywheel assembly includes a grooved wheel 1 and a one-way flywheel 2. The one-way flywheel 2 is a toothless sine wire flywheel provided by Hebei Better Gear. The outer annular surface of the grooved wheel 1 has a V-groove 3 with an included angle β of 130° to 135°. The bottom of the V-groove 3 is rounded. The inner annular surface of the grooved wheel 1 has four mounting ears 4, and the ear holes of the mounting ears 4 are M6 through holes. The outer annular surface of the one-way flywheel 2 has corresponding connecting ears 5. The mounting ears 4 and the connecting ears 5 are connected by bolts 6. The smaller the included angle β of the V-groove 3, the less likely it is to slip. However, if it is less than 130 degrees, the wire rope will get tangled and cause the rope to bite and jam when reversing. Therefore, the included angle β of the V-groove 3 is set to 130° to 135°.

[0023] In this embodiment, the radius of the rounded corner is 1.5 to 2 mm, which can effectively prevent the wire rope from slipping and increase friction by squeezing each other together under tension.

[0024] In this embodiment, the groove wheel 1 is made of ductile iron, with national standard grades between QT400 and QT600. Because ductile iron has high strength, good toughness, corrosion resistance and high friction, it can increase the friction coefficient between the wire rope wound in the V-groove 3 and the ductile iron, and prevent the drive wire rope from slipping.

[0025] During installation, the wire rope is wound around the V-groove 3, 4 to 5 times. The drive wire rope is a 3mm diameter 7*7 structure 613 brand stainless steel wire rope.

[0026] This utility model also provides a bicycle, including: the above-mentioned one-way flywheel assembly.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A one-way flywheel assembly, comprising a grooved wheel (1) and a one-way flywheel (2), characterized in that, The outer annular surface of the grooved wheel (1) has a V-shaped groove (3), the included angle β of the V-shaped groove (3) is 130°~135°, the bottom of the V-shaped groove (3) is rounded, and the inner annular surface of the grooved wheel (1) has four mounting ears (4). The outer annular surface of the one-way flywheel (2) is provided with a connecting ear (5) corresponding to the mounting ear (4). The mounting ear (4) and the connecting ear (5) are connected by bolts (6).

2. The one-way flywheel assembly according to claim 1, characterized in that, The radius of the fillet is 1.5 to 2 mm.

3. The one-way flywheel assembly according to claim 1, characterized in that, The grooved wheel (1) is made of ductile iron.

4. A bicycle, characterized in that, include: The one-way flywheel assembly as described in any one of claims 1-3.

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