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CN-224225235-U - Bicycle flywheel made of carbon fiber

CN224225235UCN 224225235 UCN224225235 UCN 224225235UCN-224225235-U

Abstract

The application belongs to the technical field of manufacturing of bicycle flywheels, and particularly relates to a bicycle flywheel made of carbon fibers, which comprises a ratchet wheel piece, wherein a toothed disc is fixedly arranged on the outer side of the ratchet wheel piece, a heat dissipation piece is fixedly connected to the front side of the ratchet wheel piece, a plurality of groups of positioning blocks are uniformly and fixedly connected to the outer surface of the ratchet wheel piece, clamping grooves are formed in the rear part of the positioning blocks, a rotating ring is rotatably connected to the inner wall of the clamping grooves, grooves matched with the shape of the positioning blocks are formed in the inner side of the rotating ring, a pull rod sliding on the inner wall of the toothed disc is fixedly connected to the rear side of the rotating ring, a slot is formed in the inner wall of the toothed disc, and the positioning blocks are in plug-in fit with the slot.

Inventors

  • WU SHICHAO

Assignees

  • 苏州澳特斯碳新材料有限公司

Dates

Publication Date
20260512
Application Date
20250630

Claims (7)

  1. 1. A bicycle flywheel made of carbon fibers comprises a ratchet wheel piece (1) and is characterized in that a toothed disc (2) is fixedly arranged on the outer side of the ratchet wheel piece (1), a heat dissipation piece (4) is fixedly connected to the front side of the ratchet wheel piece (1), a plurality of groups of positioning blocks (5) are uniformly and fixedly connected to the outer surface of the ratchet wheel piece (1), clamping grooves (6) are formed in the rear portion of the positioning blocks (5), a rotating ring (7) is rotatably connected to the inner wall of the toothed disc (2), grooves (9) matched with the outer shape of the positioning blocks (5) are formed in the inner side of the rotating ring (7), pull rods (11) sliding on the inner wall of the toothed disc (2) are fixedly connected to the rear side of the rotating ring (7), inserting grooves (8) are formed in the inner wall of the toothed disc (2), the positioning blocks (5) are matched with the inserting grooves (8) in an inserting mode, the inner wall of the toothed disc (2) is fixedly arranged on the inner wall of the toothed disc (10) through fastening bolts (10).
  2. 2. The bicycle flywheel made of carbon fibers according to claim 1, wherein the head of the fastening bolt (10) is fixedly connected with a sleeve (12), the inner wall of the dental tray (2) is fixedly connected with a rubber part (3), and the rubber part (3) is inserted into the inner wall of the sleeve (12).
  3. 3. The bicycle flywheel made of carbon fibers according to claim 2, wherein annular protrusions are arranged on the outer side of the rubber piece (3), arc grooves are formed in the inner wall of the sleeve (12), and the annular protrusions of the rubber piece (3) are in clamping fit with the arc grooves of the sleeve (12).
  4. 4. The bicycle flywheel made of carbon fibers according to claim 1, wherein the heat dissipation part (4) comprises a heat dissipation ring a (41), the heat dissipation ring a (41) is fixedly connected to the front side of the ratchet part (1), a plurality of groups of heat dissipation holes a (42) are radially formed in the inner wall of the heat dissipation ring a (41), and the heat dissipation holes a (42) are obliquely arranged.
  5. 5. The bicycle flywheel made of carbon fibers according to claim 4, wherein a heat dissipation ring b (43) is fixedly connected to the front side of the ratchet wheel piece (1) close to the inner side of the heat dissipation ring a (41), a plurality of groups of heat dissipation holes b (44) are formed in the inner wall of the heat dissipation ring b (43) in the radial direction, and the heat dissipation holes b (44) are obliquely formed.
  6. 6. A bicycle flywheel made of carbon fiber as claimed in claim 5, wherein the inclination direction of the heat dissipation hole b (44) is opposite to the inclination direction of the heat dissipation hole a (42).
  7. 7. The bicycle flywheel made of carbon fiber according to claim 5, wherein the ratchet wheel member (1), the dental tray (2) and the heat dissipation member (4) are made of carbon fiber.

Description

Bicycle flywheel made of carbon fiber Technical Field The application belongs to the technical field of manufacturing of bicycle flywheels, and particularly relates to a bicycle flywheel made of carbon fibers. Background In the field of bicycles, a flywheel is used as a key component of a transmission system, unidirectional transmission is realized through a ratchet mechanism, a rear wheel is driven when the bicycle is trampled, the flywheel idles when the bicycle is trampled, the flywheel is composed of a ratchet pawl and a ratchet ring, a chain drives the flywheel to rotate when a toothed disc is trampled, the ratchet mechanism is locked, the rear wheel is driven to advance, the ratchet pawl slips when the bicycle is trampled, the flywheel idles, and the rear wheel rotates inertially without driving the chain to drag. Along with popularization and specialized development of riding movement, users put forward higher requirements on weight reduction, corrosion resistance and maintainability of the flywheel, the rotational inertia problem caused by large weight of the traditional metal flywheel can increase energy loss of a rider, in addition, the traditional flywheel adopts an integral structure, when a certain part such as a tooth disc and a ratchet wheel part is worn, the flywheel needs to be replaced integrally, so that the maintenance cost is high, the disassembly process is complicated, special tools are needed to cooperate, and a great amount of time is consumed, therefore, the bicycle flywheel made of carbon fiber needs to be designed to solve the problems. Disclosure of utility model The application aims at overcoming the defects of the prior art, designs a bicycle flywheel made of carbon fiber by combining a detachable structure of a novel dental tray with a convection heat radiation design, and solves the problems of high weight, high rotation inertia, increased energy consumption of a rider, high maintenance cost, complex disassembly and the like caused by an integral structure in the prior art of the traditional metal flywheel. In order to achieve the above purpose, the following technical scheme is adopted: The utility model provides a bicycle flywheel that carbon fiber made, includes the ratchet, ratchet outside fixed mounting has the tooth dish, ratchet front side fixedly connected with radiating member, the even fixedly connected with multiunit locating piece of ratchet surface, the draw-in groove has been seted up at the locating piece rear portion, tooth dish inner wall rotates and is connected with the rotor ring, rotor ring sliding connection is at the draw-in groove inner wall, rotor ring inboard has seted up with locating piece appearance assorted recess, rotor ring rear side fixedly connected with slides the pull rod at tooth dish inner wall, the slot has been seted up to tooth dish inner wall, locating piece and slot grafting cooperation, rotor ring passes through fastening bolt fixed mounting at tooth dish inner wall, fastening bolt rear side threaded connection is at tooth dish inner wall. Preferably, the head of the fastening bolt is fixedly connected with a sleeve, the inner wall of the dental tray is fixedly connected with a rubber piece, and the rubber piece is inserted into the inner wall of the sleeve. Preferably, the outside of the rubber piece is provided with an annular bulge, the inner wall of the sleeve is provided with an arc groove, and the annular bulge of the rubber piece is in clamping fit with the arc groove of the sleeve. Preferably, the heat dissipation piece comprises a heat dissipation ring a, the heat dissipation ring a is fixedly connected to the front side of the ratchet piece, a plurality of groups of heat dissipation holes a are radially formed in the inner wall of the heat dissipation ring a, and the heat dissipation holes a are obliquely arranged. Preferably, the front side of the ratchet wheel component is fixedly connected with a heat dissipation ring b close to the inner side of the heat dissipation ring a, a plurality of groups of heat dissipation holes b are radially formed in the inner wall of the heat dissipation ring b, and the heat dissipation holes b are obliquely formed. Preferably, the inclination direction of the heat dissipation hole b is opposite to the inclination direction of the heat dissipation hole a. Preferably, the ratchet wheel member, the dental tray and the heat dissipation member are made of carbon fiber. Compared with the prior art, the application has the beneficial effects that: 1. According to the application, the rotating ring is fixed on the inner wall of the toothed disc through the fastening bolt, and the toothed disc and the ratchet wheel part can be separated by unscrewing the bolt when the toothed disc is disassembled, so that the maintenance time is saved compared with the integral disassembly mode of the traditional flywheel, and the wearing part is convenient to replace independently. Bicycle flywheels made using c