A type of bicycle that uses a lever-driven, energy-storing spring drum.

Abstract

This invention discloses a lever-driven energy storage bicycle with a spring drum, including a frame, a front wheel, and a rear wheel. It also includes a housing, a spring drum energy storage mechanism, and two lever drive mechanisms. The spring drum energy storage mechanism includes a spring barrel, a gear ring, and a spring. A spring drive shaft is rotatably mounted at the center of the spring. The gear ring is connected to the drive sprocket via a gear transmission assembly, and the drive sprocket is connected to the driven sprocket via a main chain. A one-way self-locking mechanism is provided on the spring drive shaft, and a reverse brake assembly is provided on the outside of the spring barrel. The lever drive mechanisms include a deflection shaft, a lever, and an auxiliary chain drive assembly. The deflection angle of the lever ranges from -45° to 45°. Two limit posts are provided on the outer surface of the housing. This invention utilizes the lever drive mechanism to store energy in the spring drum, and then transfers the energy from the spring drum to the bicycle's main chain, increasing the bicycle's speed and travel range.

Description

Technical Field

[0001] This invention belongs to the field of bicycle technology, specifically relating to a bicycle with a lever-driven, energy-storing spring drum. Background Technology

[0002] Currently, besides traditional chain bicycles and electric bicycles, the bicycle market also offers lever-driven, spring-loaded bicycles. Traditional chain bicycles rely entirely on human power, lacking acceleration and mechanical drive. On gentle inclines, manual riding is difficult; on slopes greater than 15°, most people with average physical strength cannot ride and must push. They also cannot be ridden against the wind. Electric bicycles rely on batteries, which are polluting and environmentally unfriendly. Furthermore, electric bicycle batteries are typically zinc sulfate plate batteries, which are expensive and have a short lifespan, generally needing replacement every 2-3 years. The added financial burden on cyclists, coupled with the weight of the battery, increases the overall weight of the bicycle. While lever-driven power-assisted bicycles connect the drive mechanism to a spring-driven energy storage mechanism, allowing energy to be stored while the bicycle is manually propelled, existing spring-driven energy storage mechanisms complicate the gear transmission system and, more importantly, make manual propelled bicycles more strenuous. Therefore, a lightweight, effortless, and easy-to-ride lever-driven power-assisted bicycle is needed. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a lever-driven energy storage spring drum bicycle. The spring drum has a simple structure and reasonable design. It can store energy by using a lever drive mechanism, and then transfer the energy of the spring drum to the main chain of the bicycle to increase the bicycle's speed and increase the bicycle's range.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a lever-driven energy storage spring-loaded bicycle, including a frame, a front wheel, and a rear wheel, characterized in that: it includes a housing mounted on the frame, a spring-loaded energy storage mechanism disposed inside the housing, and two lever drive mechanisms symmetrically disposed outside the housing and both connected to the spring-loaded energy storage mechanism. The spring-loaded energy storage mechanism includes two interlocking spring barrels, a gear ring disposed between the interlocking surfaces of the two spring barrels, and a spring disposed inside the two spring barrels. A spring drive shaft is rotatably mounted at the center of the spring, and the gear ring is connected to the drive sprocket via a gear transmission assembly. The driving sprocket and the driven sprocket are connected by a main chain drive. The mainspring drive shaft is equipped with a one-way self-locking mechanism. A reverse brake assembly is provided on the outside of the mainspring barrel. The lever drive mechanism includes a deflection shaft rotatably mounted on the housing, a lever fixedly mounted on the deflection shaft, and an auxiliary chain drive assembly provided between the deflection shaft and the mainspring drive shaft. The deflection angle of the lever is in the range of -45° to 45°. Two limit posts are provided on the outer surface of the housing to limit the deflection angle of the lever. A foot pedal is provided at the end of the lever near the bicycle head, and a counterweight is provided at the end of the lever away from the bicycle head.

[0005] The above-mentioned lever-driven energy storage spring drum bicycle is characterized in that: the gear transmission assembly includes an intermediate gear meshing with the gear ring and a driven gear meshing with the intermediate gear, the intermediate gear is fixedly mounted on a first rotating shaft, the driven gear and the driving sprocket are both fixedly mounted on a second rotating shaft, and the first rotating shaft and the second rotating shaft are both rotatably mounted on the housing.

[0006] The above-mentioned lever-driven energy storage spring-loaded bicycle is characterized in that: the auxiliary chain drive assembly includes a first sprocket fixedly mounted on the deflection shaft, a second sprocket fixedly mounted on the spring drive shaft, and an auxiliary chain for driving and connecting the first sprocket and the second sprocket.

[0007] The above-mentioned lever-driven energy storage spring-loaded bicycle is characterized in that: the one-way self-locking mechanism includes a ratchet fixedly installed on the spring drive shaft and a pawl meshing with the ratchet, the pawl being fixedly installed on the inner surface of the housing.

[0008] The above-mentioned lever-driven energy storage spring drum bicycle is characterized in that: the reverse braking assembly includes a disc brake disc fixedly installed on the outside of the spring drum located on the right side of the bicycle in the direction of the front of the bicycle and a brake caliper clamped on the disc brake disc, the brake caliper being fixedly installed on the inner surface of the housing, and the brake caliper being fixedly connected to the handlebar brake cable.

[0009] The above-mentioned lever-driven energy storage spring-loaded bicycle is characterized in that the length of the lever is in the range of 30cm to 40cm.

[0010] The above-mentioned lever-driven energy storage spring drum bicycle is characterized in that: the gear ring and the two spring boxes are fixedly connected by a plurality of fastening bolts.

[0011] The above-mentioned lever-driven energy storage spring-loaded bicycle is characterized in that: both the driving sprocket and the driven sprocket are variable speed sprockets.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This invention involves setting a housing on the frame and installing a spring drum energy storage mechanism inside the housing. Two independent lever drive mechanisms are connected to this mechanism. In actual use, the spring drum energy storage mechanism includes a spring barrel, a gear ring, and a spring. A spring drive shaft is rotatably mounted at the center of the spring. The gear ring is connected to the drive sprocket via a gear transmission assembly. The lever drive mechanism drives the spring to store energy, and the gear transmission assembly connects the gear ring to the drive sprocket, releasing the spring's power and transmitting it to the drive sprocket. Under the transmission of the main chain and driven sprocket, the power from the rack is transmitted to the rear wheel's rotating shaft, thus propelling the bicycle.

[0014] 2. The lever drive mechanism of the present invention includes a deflection shaft and a lever. The deflection shaft and the mainspring drive shaft are connected by an auxiliary chain transmission assembly. In actual use, the lever drives the deflection shaft to deflect, and the auxiliary chain transmission assembly transmits the rotation of the deflection shaft to the mainspring drive shaft. The mainspring drive shaft then drives the mainspring to tighten, thereby achieving the purpose of storing energy in the mainspring. Since the two lever drive mechanisms are independent of each other, the mainspring-driven power bicycle can be pedaled with one foot, with both feet simultaneously, or with both feet alternating. It can also be used to drive the mainspring drum energy storage mechanism to store energy when the bicycle is stationary.

[0015] 3. This invention features a foot pedal at the end of the lever closest to the bicycle's front and a counterweight at the end furthest from the front. In actual use, the user pedals, causing the lever to deflect downwards. When the user's foot leaves the pedal, the lever deflects upwards under the weight of the counterweight. Two limiting posts are installed on the outer surface of the housing. When the lever is horizontal, these posts are located on the upper and lower sides of the lever, respectively. These posts accurately limit the deflection angle of the lever, ensuring it ranges from -45° to 45°. A spring is installed between the lower limiting post and the lever, reducing rigid collisions between the lever and the lower limiting post, resulting in good performance.

[0016] In summary, the present invention has a simple structure and reasonable design. It utilizes a lever drive mechanism to store energy in the spring drum, and then transfers the energy from the spring drum to the main chain of the bicycle, thereby increasing the bicycle's speed and travel distance.

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 for Figure 1 Enlarged view of point A.

[0020] Figure 3 This is a schematic diagram of the connection structure of the frame, housing, spring drum energy storage mechanism, lever drive mechanism, one-way self-locking mechanism and reverse braking assembly of the present invention.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1—Frame; 2—Front wheel; 3—Rear wheel;

[0023] 4—Box housing; 5—Current spring barrel; 6—Gear ring;

[0024] 7—Spring; 8—Spring drive shaft; 9—Lever;

[0025] 10—Deflection shaft; 11—First sprocket; 12—Second sprocket;

[0026] 13—Auxiliary chain; 14—Intermediate gear; 15—Driven gear;

[0027] 16—Drive sprocket; 17—Driven sprocket; 18—Main chain;

[0028] 19—Disc brake disc; 20—Brake caliper; 21—Handlebratory brake cable;

[0029] 22—Limiting post; 23—Foot pedal; 24—Counterweight;

[0030] 25—Ratchet; 26—Pawl. Detailed Implementation

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention includes a frame 1, a front wheel 2, and a rear wheel 3, and also includes a housing 4 mounted on the frame 1, a spring drum energy storage mechanism disposed inside the housing 4, and two lever drive mechanisms symmetrically disposed outside the housing 4 and both connected to the spring drum energy storage mechanism. The spring drum energy storage mechanism includes two interlocking spring barrels 5, a gear ring 6 disposed between the interlocking surfaces of the two spring barrels 5, and a spring 7 disposed inside the two spring barrels 5. A spring drive shaft 8 is rotatably mounted at the center of the spring 7. The gear ring 6 is connected to the drive sprocket 16 via a gear transmission assembly, and the drive sprocket 16 is connected to the driven sprocket 17 via a main chain 18. The transmission connection includes a one-way self-locking mechanism on the mainspring drive shaft 8, a reverse brake assembly on the outside of the mainspring box 5, and a lever drive mechanism comprising a deflection shaft 10 rotatably mounted on the housing 4, a lever 9 fixedly mounted on the deflection shaft 10, and an auxiliary chain drive assembly between the deflection shaft 10 and the mainspring drive shaft 8. The deflection angle of the lever 9 ranges from -45° to 45°. Two limiting posts 22 for limiting the deflection angle of the lever 9 are provided on the outer surface of the housing 4. A foot pedal 23 is provided at the end of the lever 9 near the bicycle head, and a counterweight 24 is provided at the end of the lever 9 away from the bicycle head.

[0032] In this embodiment, a housing 4 is installed on the frame 1, and a spring drum energy storage mechanism is installed inside the housing 4. Two lever drive mechanisms are installed, both connected to the spring drum energy storage mechanism and independent of each other. In actual use, since the spring drum energy storage mechanism includes a spring box 5, a gear ring 6, and a spring 7, the center of the spring 7 is rotatably mounted with a spring drive shaft 8, and the gear ring 6 is connected to the drive sprocket 16 through a gear transmission assembly, the lever drive mechanism can drive the spring 7 to store energy, and the gear transmission assembly can then connect the gear ring 6 to the drive sprocket 16 to release the power of the spring 7, thus transmitting the power on the rack 7 to the drive sprocket 16. Under the transmission action of the main chain 18 and the driven sprocket 17, the power on the rack 7 can be transmitted to the rotating shaft of the rear wheel 3, thereby achieving the purpose of driving the bicycle.

[0033] In this embodiment, the lever drive mechanism includes a deflection shaft 10 and a lever 9. The deflection shaft 10 and the mainspring drive shaft 8 are connected by an auxiliary chain transmission assembly. In actual use, the lever 9 drives the deflection shaft 10 to deflect, and the auxiliary chain transmission assembly transmits the rotation of the deflection shaft 10 to the mainspring drive shaft 8. The mainspring drive shaft 8 then drives the mainspring 7 to tighten, thereby achieving the purpose of storing energy in the mainspring 7. Since the two lever drive mechanisms are independent of each other, the mainspring-driven electric bicycle can be pedaled with one foot, with both feet simultaneously, or with both feet alternating. It can also be used to drive the mainspring drum energy storage mechanism to store energy when the bicycle is stationary.

[0034] In this embodiment, a foot pedal 23 is provided at the end of the lever 9 near the front of the bicycle, and a counterweight 24 is provided at the end of the lever 9 away from the front of the bicycle. In actual use, the user steps on the foot pedal 23 to drive the lever 9 to deflect downward. When the user's foot leaves the foot pedal 23, the lever 9 will deflect upward under the gravity of the counterweight 24.

[0035] like Figure 2 As shown, in this embodiment, two limiting posts 22 are set on the outer surface of the housing 4. When the lever 9 is in a horizontal state, the two limiting posts 22 are located on the upper and lower sides of the lever 9 respectively. In actual use, the two limiting posts 22 can accurately limit the deflection angle of the lever 9, so that the deflection angle of the lever 9 is within the range of -45° to 45°. A spring is set between the limiting post 22 located below the lever 9 and the lever 9. Under the action of the spring, the rigid collision between the lever 9 and the limiting post 22 located below the lever 9 can be reduced, resulting in good performance.

[0036] like Figure 1 and Figure 3 As shown, in this embodiment, the gear transmission assembly includes an intermediate gear 14 meshing with the gear ring 6 and a driven gear 15 meshing with the intermediate gear 14. The intermediate gear 14 is fixedly mounted on a first rotating shaft, and the driven gear 15 and the driving sprocket 16 are both fixedly mounted on a second rotating shaft. The first rotating shaft and the second rotating shaft are both rotatably mounted on the housing 4.

[0037] In this embodiment, the auxiliary chain drive assembly includes a first sprocket 11 fixedly mounted on the deflection shaft 10, a second sprocket 12 fixedly mounted on the spring drive shaft 8, and an auxiliary chain 13 for drivingly connecting the first sprocket 11 and the second sprocket 12.

[0038] In this embodiment, the one-way self-locking mechanism includes a ratchet 25 fixedly mounted on the spring drive shaft 8 and a pawl 26 meshing with the ratchet 25. The pawl 26 is fixedly mounted on the inner surface of the housing 4.

[0039] In this embodiment, by setting a one-way self-locking mechanism, the phenomenon of reverse rotation of the mainspring drive shaft 8 during rotation can be prevented. In actual use, each time the foot pedal 23 is pressed, the lever 9 drives the mainspring drive shaft 8 to rotate and store energy. The ratchet 25 and the pawl 26 need to mesh to achieve one-way self-locking of the mainspring drive shaft 8, so that the mainspring drum will not reverse.

[0040] In this embodiment, the reverse braking assembly includes a disc brake disc 19 fixedly installed on the outside of the spring box 5 located on the right side of the front of the vehicle and a brake caliper 20 clamped on the disc brake disc 19. The brake caliper 20 is fixedly installed on the inner surface of the housing 4 and is fixedly connected to the handlebar brake cable 21.

[0041] In this embodiment, the length of the lever 9 ranges from 30cm to 40cm.

[0042] In this embodiment, the gear ring 6 and the two spring boxes 5 are fixedly connected by a plurality of fastening bolts.

[0043] In this embodiment, both the driving sprocket 16 and the driven sprocket 17 are variable speed sprockets.

[0044] In actual use, selecting variable speed sprockets for both the driving sprocket 16 and the driven sprocket 17 helps to increase the speed of the rear wheel 3, resulting in better performance.

[0045] like Figure 1 As shown, in actual use, this lever-driven, energy-storing spring-loaded bicycle does not require electricity or oil, making it a purely green and environmentally friendly vehicle. The user uses lever 9 to generate tremendous force, which is then channeled into and stored inside the spring-loaded drum. The spring-loaded drum then slowly releases the force, transmitting it to the rear wheel 3 of the bicycle, thus providing the bicycle with forward propulsion. Because the tremendous force generated by lever 9 is fully stored, under the same number of pedal strokes and the same pedaling weight, the distance traveled by this bicycle is 3 to 5 times that of a traditional bicycle, or even higher.

[0046] This invention follows the national initiative to promote green and environmentally friendly travel. It requires neither batteries nor fuel, and only pure human power to achieve high-efficiency riding. It brings about a further change in how people ride bicycles and improves the bicycle industry. It is hoped that this invention will advance the technological level of my country's bicycle industry to a higher level.

[0047] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the present invention. Any simple modifications, alterations, or equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A lever-driven, energy-storing spring-loaded bicycle, comprising a frame, a front wheel, and a rear wheel, characterized in that: The system includes a housing mounted on the frame, a spring drum energy storage mechanism located inside the housing, and two lever drive mechanisms symmetrically arranged outside the housing and connected to the spring drum energy storage mechanism. The spring drum energy storage mechanism includes two interlocking spring barrels, a gear ring disposed between the interlocking surfaces of the two spring barrels, and a spring disposed inside the two spring barrels. A spring drive shaft is rotatably mounted at the center of each spring. The gear ring is connected to the drive sprocket via a gear transmission assembly, and the drive sprocket is connected to the driven sprocket via a main chain. The spring drive... A one-way self-locking mechanism is provided on the shaft, and a reverse brake assembly is provided on the outside of the spring barrel. The lever drive mechanism includes a deflection shaft rotatably mounted on the housing, a lever fixedly mounted on the deflection shaft, and an auxiliary chain drive assembly provided between the deflection shaft and the spring drive shaft. The deflection angle of the lever ranges from -45° to 45°. Two limit posts are provided on the outer surface of the housing to limit the deflection angle of the lever. A foot pedal is provided at the end of the lever near the bicycle head, and a counterweight is provided at the end of the lever away from the bicycle head. The one-way self-locking mechanism includes a ratchet fixedly mounted on the mainspring drive shaft and a pawl meshing with the ratchet, the pawl being fixedly mounted on the inner surface of the housing; The reverse braking assembly includes a disc brake rotor fixedly mounted on the outside of the spring box located on the right side of the bicycle in the direction of the front of the bicycle, and a brake caliper clamped on the disc brake rotor. The brake caliper is fixedly mounted on the inner surface of the housing and is fixedly connected to the handlebar brake cable. This clockwork-driven electric bicycle can be pedaled with one foot, both feet simultaneously, or alternating feet. When the bicycle is stationary, it uses two lever drive mechanisms to drive the clockwork drum energy storage mechanism to store energy, and then releases the energy from the clockwork drum to transfer it to the bicycle's main chain, thereby increasing the bicycle's speed and range. The deflection shaft is deflected by a lever, and the rotation of the deflection shaft is transmitted to the mainspring drive shaft by an auxiliary chain transmission assembly. The mainspring drive shaft then drives the mainspring to tighten, thereby achieving the purpose of storing energy in the mainspring.

2. A lever-driven, energy-storing spring-loaded bicycle according to claim 1, characterized in that: The gear transmission assembly includes an intermediate gear meshing with the gear ring and a driven gear meshing with the intermediate gear. The intermediate gear is fixedly mounted on a first rotating shaft, and the driven gear and the driving sprocket are both fixedly mounted on a second rotating shaft. Both the first rotating shaft and the second rotating shaft are rotatably mounted on the housing.

3. A lever-driven, energy-storing spring-loaded bicycle according to claim 1, characterized in that: The auxiliary chain drive assembly includes a first sprocket fixedly mounted on the deflection shaft, a second sprocket fixedly mounted on the spring drive shaft, and an auxiliary chain for driving and connecting the first sprocket and the second sprocket.

4. A lever-driven, energy-storing spring-loaded bicycle according to claim 1, characterized in that: The lever length is in the range of 30cm to 40cm.

5. A lever-driven, energy-storing spring-loaded bicycle according to claim 1, characterized in that: The gear ring and the two spring barrels are fixedly connected by a plurality of fastening bolts.

6. A lever-driven, energy-storing spring-loaded bicycle according to claim 1, characterized in that: Both the driving sprocket and the driven sprocket are variable speed sprockets.

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