Single-stage flywheel for bicycle

Abstract

The utility model relates to the field of bicycle accessories, and discloses a single-stage flywheel for a bicycle, which comprises a support ring, a plurality of uniformly distributed worm gears are rotatably connected in the support ring, a plurality of uniformly distributed worms are rotatably connected in the support ring, the plurality of worm gears are respectively meshed with the plurality of worms, and the plurality of worm gears are meshed with the plurality of worms. Rotating rods are fixedly connected to the front sides of the multiple worms, a plurality of evenly-distributed threaded rods are rotatably connected to the interior of the supporting ring, one ends of the threaded rods are fixedly connected to one sides of the multiple worm wheels correspondingly, and a plurality of evenly-distributed limiting plates are slidably connected to the interior of the supporting ring; a plurality of evenly-distributed lifting blocks are connected into the supporting ring in a sliding mode. According to the quick mounting and dismounting device for the bicycle flywheel, the supporting ring, the multiple worm wheels, the multiple worms, the multiple rotating rods, the multiple threaded rods, the multiple limiting plates and the multiple lifting blocks are matched, so that the quick mounting and dismounting functions of the bicycle flywheel are achieved.

Description

Technical Field

[0001] The utility model relates to the field of bicycle accessories, in particular to a single-stage flywheel for a bicycle. Background Art

[0002] The emergence of single-stage flywheels for bicycles can be traced back to the early stages of bicycle development. In the late 19th century and early 20th century, during the evolution of bicycles, single-stage flywheel transmission systems were widely used as a simple, economical, easy-to-manufacture and maintain transmission solution.

[0003] Existing technologies include: materials and manufacturing technology, using lightweight materials and precision manufacturing technology, design and structure, optimizing gear design, applying high-performance lubricants and anti-corrosion treatments, reducing wear, extending the service life of the flywheel, quick release and installation convenience, designing flywheel components that are easy to install and disassemble quickly, and improving the convenience of bicycle maintenance.

[0004] However, traditional bicycle flywheels require large tools for installation and removal. The flywheel has a small operating surface and needs to be knocked into the outer periphery of the bearing during installation, which will make installation and removal extremely time-consuming. After long-term use, the bicycle will rust, which will make removal more difficult. Therefore, a single-stage flywheel for bicycles is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a single-stage flywheel for a bicycle, aiming to improve the problem in the prior art that the flywheel needs to be knocked and embedded in the outer periphery of the bearing during installation, which makes installation and disassembly difficult.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a single-stage flywheel for a bicycle, comprising a support ring, a plurality of evenly distributed worm wheels are rotatably connected inside the support ring, a plurality of evenly distributed worm screws are rotatably connected inside the support ring, the plurality of worm wheels are respectively meshed with the plurality of worm screws, the front sides of the plurality of worm screws are fixedly connected with a rotating rod, a plurality of evenly distributed threaded rods are rotatably connected inside the support ring, one end of the plurality of threaded rods is respectively fixedly connected to one side of the plurality of worm wheels, a plurality of evenly distributed limit plates are slidably connected inside the support ring, a plurality of evenly distributed lifting blocks are slidably connected inside the support ring, one side of the plurality of limit plates is respectively fixedly connected to one end of the plurality of lifting blocks, the plurality of threaded rods are respectively threadedly connected to the inside of the plurality of lifting blocks, and a plurality of evenly distributed sliding grooves are provided on the inner wall of the support ring.

[0007] Furthermore, a fixing ring is fixedly connected to the inner wall of the support ring, a limiting ring is fixedly connected to the rear end of the fixing ring, a driving ring is rotatably connected to the middle part of the fixing ring, teeth are fixedly connected to the outer periphery of the driving ring, a wear-resistant layer is fixedly connected to the outer periphery of the teeth, the support ring is rotatably connected to the front side of the driving ring, a plurality of evenly distributed steel balls are slidably connected to the outer periphery of the support ring, a plurality of evenly distributed limiting columns are slidably connected to the inside of the support ring, a plurality of evenly distributed springs are fixedly connected to the inside of the support ring, one end of the plurality of springs are respectively fixedly connected to one end of the plurality of limiting columns, and a plurality of evenly distributed telescopic grooves are provided inside the support ring.

[0008] Furthermore, the plurality of limit plates are slidably connected inside the plurality of sliding grooves respectively.

[0009] Furthermore, the plurality of lifting blocks are slidably connected inside the plurality of sliding grooves respectively.

[0010] Furthermore, the plurality of limit posts are slidably connected inside the plurality of telescopic slots respectively.

[0011] Furthermore, one end of the plurality of springs is respectively fixedly connected to one end of the plurality of limiting columns, and the other ends of the plurality of springs are respectively fixedly connected to the inside of the plurality of telescopic slots.

[0012] Furthermore, a limiting groove is provided inside the driving ring, and the plurality of limiting posts all slide inside the limiting groove.

[0013] Furthermore, the wear-resistant layer is made of tungsten-cobalt alloy.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, when installing or removing the flywheel, the flywheel is pushed into the bicycle bearing, and then a triangular screwdriver is used to rotate multiple rotating rods respectively, and the multiple rotating rods will respectively drive multiple worms to rotate, and the multiple worms will respectively drive multiple worm wheels to rotate, and the multiple worm wheels will respectively drive multiple threaded rods to rotate, and the multiple threaded rods will respectively push multiple lifting blocks and multiple limit plates to rise or fall, so that the multiple lifting blocks will be stuck in or away from the bicycle bearing, thereby realizing the function of rapid installation and disassembly of the bicycle flywheel.

[0016] 2. In the utility model, when the driving ring rotates in the opposite direction to the direction of the bicycle's travel or stops rotating, the multiple limit posts will be pushed downward by the ratchet-like structure, and the spring will be pushed to embed into the support ring and then popped out by the spring. Thus, the driving ring will not continue to rotate with the support ring during repeated squeezing and resetting. Since the spring is used for resetting drive, the driving ring is fixedly connected to the outer periphery with teeth, and the outer part of the teeth is fixedly connected with a wear-resistant layer. The wear-resistant layer is made of tungsten-cobalt alloy, which is a very hard metal material that can effectively prevent the teeth from being worn, thereby extending the service life of the flywheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of a single-stage flywheel for a bicycle proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a worm of a single-stage flywheel for a bicycle proposed by the utility model;

[0019] Figure 3 This is a schematic structural diagram of a driving ring of a single-stage flywheel for a bicycle proposed by the utility model;

[0020] Figure 4 The utility model is a schematic structural diagram of a limiting column of a single-stage flywheel for a bicycle.

[0021] Legend:

[0022] 1. Support ring; 2. Worm wheel; 3. Worm; 4. Rotating rod; 5. Threaded rod; 6. Limit plate; 7. Lifting block; 8. Fixed ring; 9. Driving ring; 10. Limit ring; 11. Steel ball; 12. Limit column; 13. Spring; 14. Wear-resistant layer; 15. Tooth. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Reference Figure 1 and Figure 2The utility model provides an embodiment: a single-stage flywheel for a bicycle, comprising a support ring 1, the support ring 1 is used to support and protect the internal structure from external interference during operation, a plurality of evenly distributed worms 3 are rotatably connected inside the support ring 1, the worm 3 is used to drive the worm wheel 2, a plurality of evenly distributed worm wheels 2 are rotatably connected inside the support ring 1, the worm wheel 2 is used to drive a threaded rod 5, a plurality of worm wheels 2 are respectively meshed with a plurality of worms 3, when the worm 3 rotates, the worm wheel 2 will be driven to rotate, a plurality of worms 3 are fixedly connected to the front sides thereof with a rotating rod 4, the rotating rod 4 is used to drive the worm 3 to rotate, a plurality of evenly distributed threaded rods 5 are rotatably connected inside the support ring 1, the threaded rods 5 are used to push a lifting block 7 to move, one end of the plurality of threaded rods 5 is respectively fixedly connected to one side of the plurality of worm wheels 2, when the worm wheels 2 will push the threaded rod 5 to rotate when it rotates. There are multiple uniformly distributed limit plates 6 slidingly connected inside the support ring 1. One side of the multiple limit plates 6 is respectively fixedly connected to one end of the multiple lifting blocks 7. The limit plates 6 are used to prevent the lifting blocks 7 from falling off. The inner wall of the support ring 1 is provided with multiple uniformly distributed sliding grooves. The multiple sliding grooves are used to provide space for the multiple limit plates 6 and the lifting blocks 7. The multiple limit plates 6 are respectively slidably connected inside the multiple sliding grooves. There are multiple uniformly distributed lifting blocks 7 slidingly connected inside the support ring 1. The lifting blocks 7 are used to extend out and clamp the bearings for auxiliary installation. The multiple lifting blocks 7 are respectively slidably connected inside the multiple sliding grooves. The multiple threaded rods 5 are respectively threadedly connected inside the multiple lifting blocks 7. The multiple threaded rods 5 can ensure the stability of transmission by threaded connection.

[0025] Reference Figure 1 , Figure 3 and Figure 4, a fixing ring 8 is fixedly connected to the inner wall of the support ring 1, and the fixing ring 8 is used to fix and connect the limit ring 10. The rear end of the fixing ring 8 is fixedly connected to the limit ring 10, and the limit ring 10 is used to ensure stable rotation when the drive ring 9 rotates. A tooth 15 is fixedly connected to the outer periphery of the drive ring 9, and the tooth 15 is used to drive the drive ring 9 to rotate. A wear-resistant layer 14 is fixedly connected to the outer periphery of the tooth 15, and the wear-resistant layer 14 is made of tungsten-cobalt alloy. The wear-resistant layer 14 can effectively prolong the service life of the tooth 15. The middle part of the fixing ring 8 is rotatably connected to the drive ring 9, and the drive ring 9 is used for transmission. The support ring 1 is rotatably connected to the front side of the drive ring 9. The close contact between the support ring 1 and the drive ring 9 can make the limit column 12 completely contact the ratchet structure inside the drive ring 9. A plurality of evenly distributed steel balls 11 are slidably connected to the outer periphery of the support ring 1. The plurality of steel balls 11 can prevent the support ring 1 from rotating directly on the inner wall of the drive ring 9, thereby reducing the friction between the two. A plurality of evenly distributed telescopic grooves are provided inside the support ring 1, and the plurality of telescopic grooves are used to provide space for a plurality of limit columns 12 and a plurality of springs 13. A plurality of evenly distributed limit columns 12 are slidably connected inside the support ring 1, and the plurality of limit columns 12 are used to be stuck inside the drive ring 9, and the plurality of limit columns 12 are respectively slidably connected inside the plurality of telescopic grooves. A limiting groove is provided inside the drive ring 9, and the plurality of limit columns 12 all slide inside the limiting grooves. The plurality of limit columns 12 directly contact with the ratchet-like structure inside the limiting groove to prevent the drive ring 9 from rotating in the opposite direction. A plurality of evenly distributed springs 13 are fixedly connected inside the support ring 1, and one end of the plurality of springs 13 is respectively fixedly connected to one end of the plurality of limit columns 12, and one end of the plurality of springs 13 is respectively fixedly connected to one end of the plurality of limit columns 12, and the other ends of the plurality of springs 13 are respectively fixedly connected inside the plurality of telescopic grooves, and the plurality of springs 13 are used to push the plurality of limit columns 12 back to their positions.

[0026] Working principle: When installing the flywheel, it is necessary to use a triangular screwdriver to rotate the rotating rod 4 respectively, and the multiple rotating rods 4 will respectively drive the multiple worm gears 3 to rotate, and the rotation of the multiple worm gears 3 will drive the multiple worm wheels 2 to rotate, and the rotation of the multiple worm wheels 2 will drive the multiple threaded rods 5 to rotate, and the multiple threaded rods 5 will respectively pull the multiple lifting blocks 7 and the multiple limit plates 6 to move upward, so that the flywheel can be installed on the bicycle bearing, and then use the triangular screwdriver to rotate the rotating rods 4 in the opposite direction respectively. At this time, the multiple rotating rods 4 will respectively drive the worm gears 3 to rotate, and the multiple worm gears 2 will drive the multiple threaded rods 5 to rotate, and the multiple threaded rods 5 will respectively push the multiple limit plates 6 and the lifting blocks 7 to drop and get stuck inside the bicycle bearing, so that the bearing can be quickly installed, and when the flywheel rotates, it will cause the drive ring 9 to push the support ring 1 to rotate, and because the multiple limit columns 12 are stuck in the ratchet-like structure inside the limiting groove, the drive ring 9 The rotation direction is restricted, and the outer side of the tooth 15 is wrapped with a wear-resistant layer 14, which is made of tungsten-cobalt alloy. Tungsten-cobalt alloy is a very hard metal material. Tungsten-cobalt alloy can effectively extend the service life of the flywheel. When the tooth 15 drives the drive ring 9 to rotate in the direction of the bicycle, multiple limit columns 12 will be stuck in the ratchet-like structure inside the limiting groove, so the bicycle will move forward. When the drive ring 9 rotates in the opposite direction of the bicycle or stops, the bicycle bearing will continue to push the support ring 1, but because the drive ring 9 stops or rotates in the opposite direction, the multiple limit columns 12 will be pushed downward by the ratchet-like structure. At this time, the spring 13 will be pushed to embed into the support ring 1, and then be ejected by the spring 13. Therefore, the drive ring 9 will not continue to rotate with the support ring 1 during the repeated squeezing and resetting process. Since the spring 13 is used for resetting drive, the service life of the flywheel is effectively improved.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-stage flywheel for a bicycle, comprising a support ring (1), characterized in that: The support ring (1) is rotatably connected to a plurality of evenly distributed worm wheels (2) inside, and is rotatably connected to a plurality of evenly distributed worm screws (3) inside. The plurality of worm wheels (2) are respectively meshed with the plurality of worm screws (3). The front sides of the plurality of worm screws (3) are fixedly connected to a rotating rod (4). The support ring (1) is rotatably connected to a plurality of evenly distributed threaded rods (5). One end of the plurality of threaded rods (5) is respectively fixedly connected to one side of the plurality of worm wheels (2). The support ring (1) is slidably connected to a plurality of evenly distributed limiting plates (6). The support ring (1) is slidably connected to a plurality of evenly distributed lifting blocks (7). One side of the plurality of limiting plates (6) is respectively fixedly connected to one end of the plurality of lifting blocks (7). The plurality of threaded rods (5) are respectively threadedly connected to the inside of the plurality of lifting blocks (7). The inner wall of the support ring (1) is provided with a plurality of evenly distributed sliding grooves.

2. A single-stage flywheel for bicycle according to claim 1, characterized in that: The inner wall of the support ring (1) is fixedly connected with a fixing ring (8), the rear end of the fixing ring (8) is fixedly connected with a limiting ring (10), the middle part of the fixing ring (8) is rotatably connected with a driving ring (9), the outer periphery of the driving ring (9) is fixedly connected with teeth (15), the outer periphery of the teeth (15) is fixedly connected with a wear-resistant layer (14), the support ring (1) is rotatably connected to the front side of the driving ring (9), the outer periphery of the support ring (1) is slidably connected with a plurality of uniformly distributed steel balls (11), the interior of the support ring (1) is slidably connected with a plurality of uniformly distributed limiting columns (12), the interior of the support ring (1) is fixedly connected with a plurality of uniformly distributed springs (13), one end of the plurality of springs (13) is respectively fixedly connected to one end of the plurality of limiting columns (12), and the interior of the support ring (1) is provided with a plurality of uniformly distributed telescopic grooves.

3. A single-stage flywheel for a bicycle according to claim 1, characterized in that: The plurality of limit plates (6) are respectively slidably connected inside the plurality of sliding grooves.

4. A single-stage flywheel for a bicycle according to claim 1, characterized in that: The plurality of lifting blocks (7) are respectively slidably connected inside the plurality of sliding grooves.

5. A single-stage flywheel for a bicycle according to claim 2, characterized in that: The plurality of limit posts (12) are respectively slidably connected inside the plurality of telescopic slots.

6. A single-stage flywheel for bicycle according to claim 2, characterized in that: One end of the plurality of springs (13) is respectively fixedly connected to one end of the plurality of limit columns (12), and the other end of the plurality of springs (13) is respectively fixedly connected to the inside of the plurality of telescopic slots.

7. A single-stage flywheel for a bicycle according to claim 2, characterized in that: A limiting groove is provided inside the driving ring (9), and the plurality of limiting posts (12) all slide inside the limiting groove.

8. A single-stage flywheel for a bicycle according to claim 2, characterized in that: The wear-resistant layer (14) is made of tungsten-cobalt alloy.

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