Fitness equipment based on flywheel device

Abstract

The utility model relates to the technical field of fitness equipment, and discloses fitness equipment based on a flywheel device, which comprises a frame (1), a flywheel (2) and a generator (3), the flywheel (2) and the generator (3) are arranged on the frame (1), an elastic roller (5) is coaxially arranged on a power input shaft (4) of the generator (3), and the peripheral surface of the elastic roller (5) clings to the peripheral surface of the flywheel (2), so that the flywheel (2) can drive the elastic roller (5) to rotate. According to the fitness equipment based on the flywheel device, when the flywheel (2) runs, the flywheel (2) can transmit power to the power input shaft (4) of the generator (3) through the elastic roller (5). In the process, shaking caused by insufficient concentricity of the flywheel (2) can be effectively filtered by utilizing the elasticity of the elastic roller (5), so that shaking of the generator (3) and the frame (1) is reduced, and the discomfort of a user during body building is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fitness equipment, in particular to a fitness equipment based on a flywheel device. Background Art

[0002] Flywheel fitness equipment uses the flywheel principle to provide resistance. It is commonly found in fitness equipment such as spinning bikes, exercise bikes, and flywheel cabinets. The rotating flywheel increases or decreases resistance, allowing users to adjust the intensity of their workouts to their needs. This type of equipment has become increasingly popular in recent years, becoming a common choice for gyms and home fitness centers. Patent publication number CN103083868B discloses a similar type of flywheel fitness equipment.

[0003] Traditional flywheel fitness equipment typically incorporates a generator, converting kinetic energy into electricity during exercise, which powers the equipment's internal components, thus saving energy. However, traditional fitness equipment uses a method where the flywheel and the generator's power input shaft are closely aligned to transmit power. Due to factors such as flywheel mass production precision and cost control, this can lead to inaccurate concentricity. This can easily cause the generator to vibrate when receiving flywheel power, which is then transmitted to the frame, causing numbness and discomfort in the user's hands and feet during exercise. Therefore, there is room for improvement. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a fitness equipment based on a flywheel device. By utilizing the elastic characteristics of the elastic roller, the vibration transmitted from the flywheel to the generator can be effectively absorbed, thereby reducing the vibration transmitted to the frame, thereby improving the comfort of the user during fitness.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A fitness equipment based on a flywheel device includes a frame, a flywheel arranged on the frame and a generator. An elastic roller is coaxially arranged on the power input shaft of the generator. The outer circumference of the elastic roller is tightly attached to the outer circumference of the flywheel so that the flywheel can drive the elastic roller to rotate.

[0007] With this solution, when the flywheel is running, it can transmit power to the generator's power input shaft via the elastic roller. During this process, the elasticity of the elastic roller effectively filters out vibrations caused by insufficient flywheel concentricity, thereby reducing vibrations in the generator and frame, and ultimately reducing user discomfort during exercise.

[0008] Preferably, two generators are provided and are disposed on both sides of the elastic roller, and the power input shafts of the two generators are coaxially connected to the two end surfaces of the elastic roller respectively.

[0009] By adopting the above solution, a single elastic roller can drive two generators to operate simultaneously, further improving the power generation efficiency.

[0010] Preferably, a connecting rod is provided on a side of the generator away from the elastic roller, a base is provided on an end of the connecting rod away from the generator, and the base is connected to the vehicle frame via a shock-absorbing block.

[0011] By adopting the above solution, the shock-absorbing block can further filter the vibration transmitted to the generator, thereby providing the user with a better fitness experience.

[0012] Preferably, a sliding seat is provided on the side of the shock-absorbing block away from the base, and a sliding platform is provided on the side of the frame close to the shock-absorbing block. A sliding groove is provided on the sliding platform for the sliding seat to move along the end face direction of the elastic roller. Slide blocks are provided on both sides of the sliding seat, and two opposite side walls in the sliding groove are provided with sliding grooves along the end face direction of the elastic roller for the two sliders to slide and engage respectively. A driving mechanism for driving the sliding seat to move along the length direction of the sliding groove is provided on the frame, and a locking mechanism is provided on the driving mechanism to prevent the sliding seat from moving in a direction away from the flywheel.

[0013] Using this solution, the combination of the slider and the slide groove enables the sliding seat to slide stably on the sliding platform, thereby adjusting the tightness between the elastic roller and the flywheel. After the elastic roller and flywheel have been in contact for a period of time, their surfaces are prone to wear, resulting in a decrease in tightness. In this case, to prevent the generator's power generation efficiency from decreasing, the sliding seat is driven forward by a drive mechanism, and then prevented from retreating by a locking mechanism. This allows the elastic roller to fit tightly against the outer circumference of the flywheel again, thereby restoring the power transmission efficiency between the flywheel and the elastic roller, and thus maintaining the generator's power generation efficiency.

[0014] Preferably, the driving mechanism includes a screw rotatably arranged on the frame, the screw is passed through the sliding seat along the length direction of the sliding groove, an internal threaded bushing for the screw thread to pass through is provided on the side of the sliding seat away from the flywheel, and a driving member is provided on the end of the screw away from the flywheel to drive the screw to rotate in response to an external trigger.

[0015] With this solution, the circumferential rotation of the screw is converted into reciprocating linear motion of the internally threaded bushing along the length of the screw, thereby achieving stable forward or backward movement of the sliding seat on the sliding platform. The driving member is more easily subjected to force, thereby improving the efficiency and convenience of the screw drive.

[0016] Preferably, both ends of the screw are mounted on the frame via seat bearings.

[0017] With the above solution, the seated bearing can stably mount the screw on the frame and ensure that the screw can rotate stably and smoothly.

[0018] Preferably, the locking mechanism includes a locking nut threadedly connected to the screw and abutting against a side of the internal threaded bushing away from the flywheel.

[0019] By adopting the above solution, the locking nut abutting against the side surface of the internally threaded bushing can effectively prevent the internally threaded bushing and the sliding seat from retreating, thereby preventing the precision between the elastic roller and the flywheel from being reduced.

[0020] Preferably, the locking nut is a hand-tightened nut.

[0021] By adopting the above solution, the hand-tightening nut can realize tool-free operation of the locking nut, further improving the operating efficiency and convenience.

[0022] By adopting the above technical solution, the present invention has a significant technical effect: when the flywheel is in operation, it can transmit power to the power input shaft of the generator through the elastic roller. In this process, the elasticity of the elastic roller can effectively filter out the vibration caused by insufficient concentricity of the flywheel, thereby reducing the vibration of the generator and the frame, and further reducing the user's discomfort during exercise. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of this embodiment Figure 1 ;

[0024] Figure 2 for Figure 1 An enlarged schematic diagram of section A is shown;

[0025] Figure 3 This is a schematic diagram of the structure of this embodiment Figure 2 ;

[0026] Figure 4 This is a schematic diagram of the structure of this embodiment Figure 3 ;

[0027] Figure 5 for Figure 4 An enlarged schematic diagram of part B is shown.

[0028] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Frame; 2. Flywheel; 3. Generator; 4. Power input shaft; 5. Elastic roller; 6. Connecting rod; 7. Base; 8. Shock absorber; 9. Sliding seat; 10. Sliding table; 11. Sliding groove; 12. Slider; 13. Slide groove; 14. Screw; 15. Internal threaded bushing; 16. Driving part; 17. Bearing with seat; 18. Locking nut. DETAILED DESCRIPTION

[0029] The present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1 and Figure 2 As shown, this embodiment discloses a flywheel-based fitness device comprising a frame 1, a flywheel 2 mounted on the frame 1, and a generator 3. An elastic roller 5 is coaxially mounted on the power input shaft 4 of the generator 3. The elastic roller 5 is preferably made of silicone, thus exhibiting excellent elasticity and friction. The outer circumference of the elastic roller 5 is in close contact with the outer circumference of the flywheel 2, enabling the flywheel 2 to drive the elastic roller 5 to rotate, thereby driving the generator 3 to operate.

[0031] like Figure 2 and Figure 3 As shown, in order to improve power generation efficiency, two generators 3 are provided and are respectively arranged on both sides of the elastic roller 5. The power input shafts 4 of the two generators 3 are coaxially fixed to the two end surfaces of the elastic roller 5.

[0032] like Figure 3 As shown, to further enhance the shock absorption effect, a connecting rod 6 is provided on the side of the generator 3 away from the elastic roller 5. A base 7 is provided on the end of the connecting rod 6 away from the generator 3. The base 7 is connected to the vehicle frame 1 via a shock-absorbing block 8. In this embodiment, the shock-absorbing block 8 is preferably made of rubber to provide better shock absorption performance, and its upper surface is fixed to the base 7 by glue.

[0033] like Figure 2 and Figure 3 As shown, in order to maintain the tightness between the elastic roller 5 and the flywheel 2, a sliding seat 9 is fixed to the side of the shock absorbing block 8 away from the base 7 by glue, and a sliding platform 10 is fixed to the side of the frame 1 close to the shock absorbing block 8. A sliding groove 11 is provided on the sliding platform 10 for the sliding seat 9 to move along the end face direction of the elastic roller 5. Slide blocks 12 are provided on both sides of the sliding seat 9. The two opposite side walls in the sliding groove 11 are provided with sliding grooves 13 for the two sliders 12 to slide and engage along the end face direction of the elastic roller 5. A driving mechanism for driving the sliding seat 9 to move along the length direction of the sliding groove 11 is provided on the frame 1, and a locking mechanism is provided on the driving mechanism to prevent the sliding seat 9 from moving in the direction away from the flywheel 2.

[0034] Specifically, such as Figure 4 and Figure 5As shown, the drive mechanism includes a screw 14 rotatably mounted on the frame 1. Both ends of the screw 14 are mounted on the frame 1 via seat bearings 17. The screw 14 extends through the sliding seat 9 along the length of the sliding groove 11. The side of the sliding seat 9 facing away from the flywheel 2 is provided with an internally threaded bushing 15 through which the screw 14 is threadedly inserted. The end of the screw 14 facing away from the flywheel 2 is provided with a driving member 16 that responds to an external trigger to drive the screw 14 to rotate. Correspondingly, the locking mechanism includes a locking nut 18 threadedly connected to the screw 14 and abutting the side of the internally threaded bushing 15 facing away from the flywheel 2. The locking nut 18 is a hand-tightened nut, which effectively improves the efficiency and convenience of its operation.

[0035] The specific usage process is as follows:

[0036] When the flywheel 2 is running, it can transmit power to the power input shaft 4 of the generator 3 through the elastic roller 5, thereby driving the generator 3 to operate. During this process, the elasticity of the elastic roller 5 and the shock-absorbing block 8 can effectively filter out the vibration caused by the lack of concentricity of the flywheel 2, thereby reducing the vibration transmitted to the frame 1 and further reducing the user's discomfort during exercise.

[0037] When the elastic roller 5 becomes worn, first loosen the locking nut 18 to allow the internally threaded bushing 15 room to move on the screw 14. Then, use the driver 16 to rotate the screw 14, driving the internally threaded bushing 15 and the sliding seat 9 forward along the sliding groove 11, so that the elastic roller 5 on the sliding seat 9 is once again in close contact with the outer circumference of the flywheel 2. Finally, re-tighten the locking nut 18 until it abuts the side of the internally threaded bushing 15, preventing the sliding seat 9 from moving backward and maintaining the close contact between the elastic roller 5 and the flywheel 2.

Claims

1. A fitness equipment based on a flywheel device, comprising a frame (1), a flywheel (2) and a generator (3) arranged on the frame (1), characterized in that: An elastic roller (5) is coaxially arranged on the power input shaft (4) of the generator (3), and the outer peripheral surface of the elastic roller (5) is closely attached to the outer peripheral surface of the flywheel (2), so that the flywheel (2) can drive the elastic roller (5) to rotate.

2. The fitness equipment based on a flywheel device according to claim 1, characterized in that: Two generators (3) are provided and are respectively arranged on both sides of the elastic roller (5). The power input shafts (4) of the two generators (3) are coaxially connected to the two end surfaces of the elastic roller (5).

3. A fitness equipment based on a flywheel device according to claim 1 or 2, characterized in that: A connecting rod (6) is provided on the side of the generator (3) away from the elastic roller (5), and a base (7) is provided on the end of the connecting rod (6) away from the generator (3). The base (7) is connected to the vehicle frame (1) via a shock-absorbing block (8).

4. The fitness equipment based on a flywheel device according to claim 3, characterized in that: A sliding seat (9) is provided on the side of the damping block (8) away from the base (7), and a sliding platform (10) is provided on the side of the vehicle frame (1) close to the damping block (8). A sliding groove (11) is provided on the sliding platform (10) for the sliding seat (9) to move along the end surface direction of the elastic roller (5). Slide blocks (12) are provided on both sides of the sliding seat (9). Two opposite side walls in the sliding groove (11) are provided along the end surface direction of the elastic roller (5) with sliding grooves (13) for sliding engagement of the two slide blocks (12). A driving mechanism for driving the sliding seat (9) to move along the length direction of the sliding groove (11) is provided on the vehicle frame (1), and a locking mechanism is provided on the driving mechanism to prevent the sliding seat (9) from moving in a direction away from the flywheel (2).

5. The fitness equipment based on a flywheel device according to claim 4, characterized in that: The driving mechanism comprises a screw (14) rotatably arranged on a vehicle frame (1); the screw (14) is arranged on a sliding seat (9) along the length direction of a sliding groove (11); an internal threaded bushing (15) for the screw (14) to threadably penetrate is arranged on a side of the sliding seat (9) away from the flywheel (2); and a driving member (16) is arranged on an end of the screw (14) away from the flywheel (2) for driving the screw (14) to rotate in response to an external trigger.

6. The fitness equipment based on a flywheel device according to claim 5, characterized in that: Both ends of the screw rod (14) are mounted on the vehicle frame (1) via seat bearings (17).

7. The fitness equipment based on a flywheel device according to claim 5, characterized in that: The locking mechanism comprises a locking nut (18) which is threadedly connected to the screw rod (14) and abuts against a side of the internal thread bushing (15) away from the flywheel (2).

8. The fitness equipment based on a flywheel device according to claim 7, characterized in that: The locking nut (18) is a hand-tightening nut.

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