Novel conjoined crank

Abstract

The novel connected crank includes a crank assembly, the crank assembly is a quick release crank assembly, the quick release crank assembly is a connected quick release crank, a connecting end is arranged on the connected quick release crank, a connecting hole is arranged on the connecting end, and a quick release component is arranged on the connecting end. The elastic pin in the prior art is replaced by a pin, a compression spring and a protective sleeve are added, the connected quick release crank is more reliable, safe and convenient to install, the protective sleeve guarantees that the pin will not fall off during use, and the protective sleeve is connected to the crank through a pedal thread to ensure safety and reliability.

Description

Technical Field

[0001] This utility model relates to a bicycle component, specifically a novel one-piece crank. Background Technology

[0002] The crank assembly is used extensively in the manufacturing and use of bicycles. The crank and pedals are connected to form a power unit that drives the bicycle forward. When bicycles are sold overseas, many bicycles need to have the crank assembly installed separately, which requires reassembly in overseas factories. This increases the assembly costs for bicycle manufacturers and affects the efficiency of assembling and disassembling the crank assembly on bicycles.

[0003] The existing technology features a new type of integrated crank, comprising an integrated quick-release crank, quick-release left and right sleeves, left and right protective sleeves, springs, and pins. The quick-release left and right sleeves are installed on the quick-release crank, and the pins and left and right sleeves are provided with quick-release pin guide holes that are compatible with the quick-release springs. The left and right quick-release sleeves are covered with safety protective covers. Previously, bicycle pedals were not assembled at the factory because the distance between the two pedals was too wide after assembly, affecting the overall packaging size of the bicycle. Therefore, domestic consumers assembled the pedals themselves, while export consumers assembled the pedals abroad before selling them, which was costly and inconvenient. We have now improved upon the above-mentioned problems, and the new quick-release mechanism will be safer and more convenient. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a novel one-piece crank.

[0005] This utility model is achieved using the following technical solution: a novel one-piece crank, including a crank assembly, wherein the crank assembly is a quick-release crank assembly, the quick-release crank assembly is a one-piece quick-release crank, the one-piece quick-release crank is provided with a connecting end, the connecting end is provided with a connecting hole, the connecting end is provided with a quick-release component, the quick-release component is a quick-release sleeve, the quick-release sleeve is provided with a receiving space, the receiving space is provided with a pressing part, and the quick-release sleeve is provided with a positioning groove.

[0006] The compression part is a compression spring, which is placed in the receiving space inside the quick-release sleeve. The connecting end on the integrated quick-release crank and the quick-release sleeve are fixed by a pin.

[0007] The quick-release sleeve is provided with a protective component, which is a plastic protective sleeve. The plastic protective sleeve is provided on the outer surface of the quick-release sleeve, and the quick-release sleeve and the plastic protective sleeve are provided with mounting thread holes.

[0008] A foot pedal is fitted into the mounting threaded hole on the quick-release sleeve and the plastic protective sleeve. The foot pedal is provided with a mounting end, and the mounting end and the mounting threaded hole on the quick-release sleeve are assembled by threads.

[0009] The quick-release sleeve has an L-shaped positioning groove, and the quick-release sleeve rotates along the connecting end.

[0010] Compared with the prior art, the foot pedal and quick-release sleeve of this utility model slide into the positioning groove under the action of the compression spring, so as to reliably fix them, realizing the quick installation of the integrated quick-release crank and foot pedal. The pin and the compression spring cooperate with each other to make the crank installation convenient and quick. The plastic protective sleeve makes it more reliable and safe. The plastic protective sleeve ensures that the pin will not fall off during use. The foot pedal is connected to the crank by threads to ensure the safety and reliability between the foot pedal and the crank. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is an assembly diagram of the present invention in the riding state;

[0013] Figure 3 This is an assembly drawing of the present invention in its transport state;

[0014] Figure 4 This is a sectional view of the present invention;

[0015] In the diagram: 1 is the integrated quick-release crank, 2 is the connecting hole, 3 is the quick-release sleeve, 4 is the positioning groove, 5 is the compression spring, 6 is the pin, 7 is the plastic protective sleeve, 8 is the assembly threaded hole, 9 is the foot pedal, and 10 is the assembly end. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0017] A novel one-piece crank includes a crank assembly, which is a quick-release crank assembly. The quick-release crank assembly is a one-piece quick-release crank 1. The one-piece quick-release crank 1 is provided with a connecting end, and the connecting end is provided with a connecting hole 2. The connecting end is provided with a quick-release component, which is a quick-release sleeve 3. The quick-release sleeve 3 is provided with a receiving space, and the receiving space is provided with a pressing part. The quick-release sleeve 3 is provided with a positioning groove 4.

[0018] The compression part is a compression spring 5, which is placed in the receiving space inside the quick-release sleeve 3. The connecting end on the integrated quick-release crank 1 is fixed to the quick-release sleeve 3 by a pin 6. A protective component is provided outside the quick-release sleeve 3, which is a plastic protective sleeve 7. The plastic protective sleeve 7 is provided on the outer surface of the quick-release sleeve 3. The quick-release sleeve 3 and the plastic protective sleeve 7 are provided with mounting threaded holes 8.

[0019] A foot pedal 9 is fitted into the mounting threaded hole on the quick-release sleeve 3 and the plastic protective sleeve 7. The foot pedal 9 is provided with a mounting end 10. The mounting end 10 and the mounting threaded hole 8 on the quick-release sleeve 3 are assembled by threads. The positioning groove 4 on the quick-release sleeve 3 is an L-shaped structure. The quick-release sleeve 3 rotates along the connecting end.

[0020] Under the action of the compression spring 5, the foot pedal 9 and quick-release sleeve 3 slide into the positioning groove 4 to secure them reliably, realizing the quick installation of the integrated quick-release crank 1 and foot pedal 9. The pin 6 and the compression spring 5 cooperate with each other to make the crank installation convenient and quick. The plastic protective sleeve 7 makes it more reliable and safe. The plastic protective sleeve 7 ensures that the pin 6 will not fall off during use. The foot pedal 9 is connected to the crank by threads to ensure the safety and reliability between the foot pedal 9 and the crank.

[0021] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A novel one-piece crank, comprising a crank assembly, wherein the crank assembly is a quick-release crank assembly, the quick-release crank assembly is a one-piece quick-release crank, the one-piece quick-release crank is provided with a connecting end, and the connecting end is provided with a connecting hole, characterized in that: The connecting end is provided with a quick-release component, which is a quick-release sleeve. The quick-release sleeve has an accommodating space, and the accommodating space has a pressing part. The quick-release sleeve is provided with a positioning groove.

2. The novel one-piece crank according to claim 1, characterized in that: The compression part is a compression spring, which is placed in the receiving space inside the quick-release sleeve. The connecting end on the integrated quick-release crank and the quick-release sleeve are fixed by a pin.

3. The novel one-piece crank according to claim 2, characterized in that: The quick-release sleeve is provided with a protective component, which is a plastic protective sleeve. The plastic protective sleeve is provided on the outer surface of the quick-release sleeve, and the quick-release sleeve and the plastic protective sleeve are provided with mounting thread holes.

4. The novel one-piece crank according to claim 3, characterized in that: A foot pedal is fitted into the mounting threaded hole on the quick-release sleeve and the plastic protective sleeve. The foot pedal is provided with a mounting end, and the mounting end and the mounting threaded hole on the quick-release sleeve are assembled by threads.

5. The novel one-piece crank according to claim 4, characterized in that: The quick-release sleeve has an L-shaped positioning groove, and the quick-release sleeve rotates along the connecting end.

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