Bicycle flywheel capable of being locked sensitively
By designing the pawl structure of the bicycle flywheel, the combination of pawl A, pawl B and pawl C, the inclined section and arc connecting section are used to achieve rapid and sensitive locking of the bicycle flywheel, solving the problem of slow response caused by the large rotation angle of the pawl in the prior art, and improving the vehicle experience.
Patent Information
- Application Number
- CN202422041501.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The pawls of existing bicycle flywheels need to be rotated at a high angle to lock, resulting in slow response and poor sensitivity, which affects the experience of using the car.
A bicycle flywheel is designed, with pawl A, pawl B and pawl C composed of pawl locks. The pawl lock is equipped with an inclined section and an arc connecting section. When pawl A and pawl lock the hole are separated from the pawl lock, the pawl C is locked first, and pawl B is locked later. Pawl A falls into the inclined section to ensure that the rotation is smaller and can be locked. The pawl is symmetrically set to balance the force.
It realizes a fast and sensitive lock lock, improves the car use experience, has short pawl locking stroke, quick response, and balances the side force.
Smart Images
Figure CN223120447U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a bicycle flywheel capable of sensitively locking, belonging to the technical field of flywheel tools. Background Art
[0002] Bicycles are traditional industries with a history of more than 100 years. Due to environmental protection and traffic problems, bicycles have once again become a favorite means of transportation for residents in various countries, especially in developed countries. At the same time, with the increasing attention to people's health, bicycles have also become popular sports, fitness, leisure, and entertainment products.
[0003] For the flywheel components of existing bicycles, the pawls on the core are mutually matched with the pawl locking slots on the core mounting sleeve. At the same time, multiple pawls are equally divided and arranged. Then, when locking, multiple pawls need to rotate the same angle together and lock with the pawl locking slots simultaneously. Although locking can be achieved in this way, the pawls need to rotate a large angle, resulting in a lag in response, slow reaction, and poor sensitivity.
[0004] That is, there is a need for a bicycle flywheel that can lock quickly and sensitively, which is beneficial to improving the vehicle use experience. Content of the Utility Model
[0005] In view of this, the purpose of the utility model is to provide a bicycle flywheel capable of sensitively locking, which can lock quickly and sensitively, is beneficial to improving the vehicle use experience, and can overcome the deficiencies of the prior art.
[0006] The purpose of the utility model is achieved by the following technical solutions:
[0007] The utility model discloses a bicycle flywheel capable of sensitively locking, which comprises a core mounting sleeve and a core inside the core mounting sleeve. An axial hole is arranged inside the core, and a mounting groove is arranged on the outer wall of the core. A pawl is hinged in the mounting groove, and an elastic component for pushing the free end of the pawl outwards is arranged. A pawl locking slot for mutually matching with the pawl is arranged on the inner wall of the core mounting sleeve. It is characterized in that an inclined section is arranged on the pawl sliding-out side of the pawl locking slot, and an arc connecting section is arranged between the pawl locking slots. The pawl is composed of pawl A, pawl B, and pawl C. Pawl A is in a state of being positively clamped in the pawl locking slot, and pawl B and pawl C are respectively located on the inclined and arc connecting sections.
[0008] As described above, the central angle corresponding to the inclined section is θ x , the central angle corresponding to the arc connecting section is θ y , the central angle corresponding to between the pawl locking slots is θ0, the central angle corresponding to between the free ends of pawl A and pawl B is θ1, and the central angle corresponding to between the free ends of pawl A and pawl C is θ2. Then, θ1 and θ2:
[0009] nθ0 < θ1 < nθ0 + θ x
[0010] nθ0 + θ x < θ2 < nθ0 + θ x + θ y
[0011] Wherein, n is an integer greater than zero, and both θ1 and θ2 are less than 180°.
[0012] The outer wall of the above-mentioned core installation sleeve is provided with at least one keyway.
[0013] For the foregoing, the numbers of pawl A, pawl B, and pawl C are all two to form a pair. The two pawl A, pawl B, and pawl C within each pair are symmetric about the center of the circle respectively.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. When the core rotates counterclockwise in the present utility model, pawl A disengages from the pawl locking groove. At the same time, pawl C first falls back into the pawl locking groove for locking from the arc connecting section, the free end of pawl B falls onto the arc connecting section, and pawl A falls onto the inclined section. In this way, when retreating next time, pawl B locks in the pawl locking groove first. In this way, when locking is required, the locking stroke of the pawl is the shortest, the reaction is fast, and locking can be performed more sensitively.
[0016] 2. The central angle corresponding to the inclined section is θ x , the central angle corresponding to the arc connecting section is θ y , the central angle corresponding to between the pawl locking grooves is θ0, pawl A is in a state of being positively clamped in the pawl locking groove, the central angle corresponding to between the free end of pawl A and pawl B is θ1, and the central angle corresponding to between the free end of pawl A and pawl C is θ2. Then θ1, θ2:
[0017] nθ0 < θ1 < nθ0 + θ x
[0018] nθ0 + θ x < θ2 < nθ0 + θ x + θ y
[0019] Wherein, n is an integer greater than zero, and both θ1 and θ2 are less than 180°; such a requirement for the central angle can ensure that a smaller angle is rotated, and pawl A, pawl B, and pawl C can lock the pawl locking groove in turn.
[0020] 3. The numbers of pawl A, pawl B, and pawl C are all two to form a pair. The two pawl A, pawl B, and pawl C within each pair are symmetric about the center of the circle respectively. In this way, when the two pawls are locked through central symmetry, they can be locked simultaneously, which is beneficial to the balance of the force on the opposite side.
[0021] Other advantages, objects and features of the present utility model will be set forth to some extent in the following description, and to some extent, will be obvious to those skilled in the art based on an examination of the following, or can be learned from the practice of the present utility model. The objects and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to make the objects, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings, where:
[0023] Figure 1 is a schematic structural diagram of the present utility model.
[0024] Figure 2 is a schematic diagram of the disassembled structure of the present utility model.
[0025] Figure 3 is a schematic structural diagram of the core mounting sleeve of the present utility model.
[0026] Figure 4 is a schematic diagram of the connection structure of the core of the present utility model.
[0027] Wherein, the core mounting sleeve 1; the core 2; the mounting groove 3; the elastic member 4; the pawl lock 5; the inclined section 6; the arc connection section 7; the pawl A 8; the pawl B 9; the pawl C 10; the keyway 11 DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] The following will refer to the accompanying drawings to describe in detail the preferred embodiments of the present utility model. It should be understood that the preferred embodiments are only for illustrating the present utility model and not for limiting the protection scope of the present utility model.
[0029] Such as Figures 1-4As shown in the figure, a bicycle flywheel capable of sensitive locking disclosed by the utility model includes a core installation sleeve 1 and a core 2 inside the core installation sleeve 1. The outer wall of the core installation sleeve 1 is provided with at least one keyway 11; a shaft hole is provided inside the core 2, an installation groove 3 is provided on the outer wall of the core 2, a pawl is hinged in the installation groove 3 and an elastic member 4 for keeping the free end of the pawl pushed outwards is provided. A pawl locking port 5 that cooperates with the pawl is provided on the inner wall of the core installation sleeve 1. It is characterized in that an inclined section 6 is provided on the pawl sliding-out side of the pawl locking port 5, and an arc connection section 7 is provided between the pawl locking ports 5. The pawl is composed of a pawl A 8, a pawl B 9 and a pawl C 10. The pawl A 8 is in a state of being positively clamped in the pawl locking port 5. The pawl B 9 and the pawl C 10 are respectively located on the inclined and arc connection sections 7. With such a structure, when the core 2 rotates counterclockwise, the pawl A 8 is disengaged from the pawl locking port 5. At the same time, the pawl C 10 first falls back into the pawl locking port 5 for locking from the arc connection section 7. The free end of the pawl B 9 falls onto the arc connection section 7, and the pawl A 8 falls onto the inclined section 6. In this way, when retreating next time, the pawl B 9 is locked in the pawl locking port 5 first. In this way, when locking is required, the locking stroke of the pawl is the shortest, the reaction is fast, and locking can be carried out more sensitively.
[0030] The central angle corresponding to the inclined section 6 is θ x , and the central angle corresponding to the arc connection section 7 is θ y , the central angle corresponding between the pawl locking ports 5 is θ0, the pawl A 8 is in a state of being positively clamped in the pawl locking port 5, the central angle corresponding between the free end of the pawl A 8 and the pawl B 9 is θ1, and the central angle corresponding between the free end of the pawl A 8 and the pawl C 10 is θ2. Then θ1, θ2:
[0031] nθ0 < θ1 < nθ0 + θ x
[0032] nθ0 + θ x < θ2 < nθ0 + θ x + θ y
[0033] Wherein, n is an integer greater than zero, and both θ1 and θ2 are less than 180°.
[0034] Such a requirement for the central angle can ensure that a smaller angle is rotated, and the pawl A 8, the pawl B 9 and the pawl C 10 can take turns to lock the pawl locking port 5.
[0035] During production, since the above-mentioned angles θ1 and θ2 are the angles obtained after the pawls B9 and C10 are tilted by a certain angle, when the installation grooves 3 are opened, for the installation grooves 3 of the pawl A8 and the pawl B9, the central angle corresponding to the line where the axes of the pawl A8 and the pawl B9 are located should be slightly larger than the angle θ1; for the installation grooves 3 of the pawl A8 and the pawl C10, the central angle corresponding to the line where the axes of the pawl A8 and the pawl C10 are located should be slightly larger than θ2. When the installation grooves 3 need to be opened, the central angle between the pawls is determined according to the specific values of θ1 and θ2 for reference.
[0036] The numbers of the pawl A8, the pawl B9, and the pawl C10 are all two to form a pair. The two pawl A8, pawl B9, and pawl C10 within each pair are symmetric about the center of the circle. In this way, when the two pawls are locked through central symmetry about the center of the circle, they can be locked simultaneously, which is beneficial to the balance of the force on the opposite side.
[0037] The above description is only a preferred embodiment of the present invention, and does not impose any form of confidentiality restrictions on the present invention. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical content of the present invention and without departing from the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. A bicycle flywheel capable of sensitive locking, which comprises a core mounting sleeve (1) and a core (2) inside the core mounting sleeve (1). A shaft hole is provided in the core (2), and a mounting groove (3) is provided on the outer wall of the core (2). A pawl is hinged in the mounting groove (3), and an elastic member (4) for keeping the free end of the pawl pushed outwards is provided. A pawl locking notch (5) cooperating with the pawl is provided on the inner wall of the core mounting sleeve (1), and it is characterized in that, The pawl sliding-out side of the pawl locking opening (5) is provided with an inclined section (6), and an arc connecting section (7) is provided between the pawl locking openings (5). The pawl is composed of a pawl A (8), a pawl B (9) and a pawl C (10). The pawl A (8) is in a state of being properly clamped in the pawl locking opening (5), and the pawl B (9) and the pawl C (10) are respectively located on the inclined and arc connecting sections (7).
2. The bicycle freewheel capable of sensitive locking as claimed in claim 1, wherein The central angle corresponding to the inclined section (6) is θ x , the central angle corresponding to the arc connection section (7) is θ y , the central angle corresponding to the pawl lock openings (5) is θ0, the central angle corresponding to the free ends of the pawl A (8) and the pawl B (9) is θ1, and the central angle corresponding to the free ends of the pawl A (8) and the pawl C (10) is θ2. Then, for θ1 and θ2: nθ0 < θ1 < nθ0 + θ x nθ0+θ x <θ2<nθ0+θ x +θ y Wherein, n is an integer greater than zero, and both θ1 and θ2 are less than 180°.
3. The bicycle freewheel capable of sensitive locking as claimed in claim 1, wherein The outer wall of the core installation sleeve (1) is provided with not less than one keyway (11).
4. The bicycle freewheel capable of sensitive locking as claimed in claim 1, wherein The numbers of the pawl A (8), the pawl B (9) and the pawl C (10) are all two to form a pair, and the two pawl A (8), the two pawl B (9) and the two pawl C (10) within each pair are respectively centrosymmetric about the center of the circle.