SPORTS PULLEY SIGNAL SENSING DEVICE

Abstract

A sports pulley signal sensing device includes a flywheel mounted on an exercise equipment. A pulley is mounted on the flywheel and has a mounting area. A strain module is mounted in the mounting area of the pulley and configured to sense the deformation of the pulley during rotation.

Claims

1. A sports pulley signal sensing device comprising: a flywheel (1) mounted on an exercise equipment (10); a pulley (2) mounted on the flywheel (1) and having a mounting area (20), and a strain module (3) mounted in the mounting area (20) of the pulley (2) and sensing a deformation of the pulley (2) during rotation.

2. The sports pulley signal sensing device as claimed in claim 1, wherein the mounting area (20) is recessed within the pulley (2), the mounting area (20) has a second transmission part (200) and an accommodation groove (201), the second transmission part (200) is located at a center position of the pulley (2) and includes a plurality of ribs (21) extending outward, each rib (21) is connected to an inner wall of the accommodation groove (201), each rib (21) has a first surface (210) and a second surface (211), the strain module (3) has a plurality of first strain gauges (30), each first strain gauge (30) is mounted on the first surface (210).

3. The sports pulley signal sensing device as claimed in claim 1, wherein the mounting area (20) is recessed within the pulley (2), the mounting area (20) has a second transmission part (200) and an accommodation groove (201), the second transmission part (200) is located at a center position of the pulley (2) and includes a plurality of ribs (21) extending outward, each rib (21) is connected to an inner wall of the accommodation groove (201), each rib (21) has a first surface (210) and a second surface (211), the strain module (3) has a plurality of second strain gauges (31), each second strain gauge (31) is mounted on the second surface (211).

4. The sports pulley signal sensing device as claimed in claim 1, wherein the mounting area (20) is recessed within the pulley (2), the mounting area (20) has a second transmission part (200) and an accommodation groove (201), the second transmission part (200) is located at a center position of the pulley (2) and includes a plurality of ribs (21) extending outward, each rib (21) is connected to an inner wall of the accommodation groove (201), and each rib (21) has a first surface (210) and a second surface (211), the strain module (3) has a plurality of third strain gauges (32) and fourth strain gauges (33), each third strain gauge (32) and each fourth strain gauge (33) are respectively mounted on the first surface (210) and the second surface (211).

5. The sports pulley signal sensing device as claimed in claim 1, wherein the mounting area (20) is recessed within the pulley (2), the mounting area (20) has a second transmission part (200) and an accommodation groove (201), the second transmission part (200) is located at a center position of the pulley (2) and includes a receiving surface (22) extending outward, the receiving surface (22) is connected to an inner wall of the accommodation groove (201), the receiving surface (22) has a plurality of receiving holes (220), the strain module (3) has a plurality of fifth strain gauges (34), each fifth strain gauge (34) is mounted in each receiving hole (220).

6. The sports pulley signal sensing device as claimed in claim 2, wherein the flywheel (1) has a first transmission part (11) connected to the second transmission part (200).

7. The sports pulley signal sensing device as claimed in claim 6 further comprising a transmission module (4), the transmission module (4) mounted on the second transmission part (200) of the pulley (2).

8. The sports pulley signal sensing device as claimed in claim 1 further comprising a wireless power supply unit (40) and a power unit (41), the wireless power supply unit (40) being a resonant wireless power supply, configured to wirelessly transmit power to the power unit (41).

9. The sports pulley signal sensing device as claimed in claim 8, wherein the wireless power supply unit (40) has electrically connected wireless charging receiver and wireless charging transmitter.

10. The sports pulley signal sensing device as claimed in claim 8 further comprising a first cover (42), a second cover (43) and a third cover (44), the first cover (42), the second cover (43) and the third cover (44) enclose the wireless power supply unit (40) and the power unit (41) therein to prevent damage to the wireless power supply unit (40) and the power unit (41).

11. The sports pulley signal sensing device as claimed in claim 8, wherein the power unit (41) is a USB device or battery.

12. The sports pulley signal sensing device as claimed in claim 8, wherein the wireless power supply unit (40) is a power generation device (9), the power generation device (9) is integrated with the flywheel (1), and the power generation device (9) is adapted to be used for other electronic devices.

13. The sports pulley signal sensing device as claimed in claim 7 further comprising a control module (5), the control module (5) electrically connected to the strain module (3) and the transmission module (4) respectively, the control module (5) having a Wheatstone bridge unit (50) for signal transmission, an analog-to-digital conversion unit (51), a processing unit (52), a first display unit (53) and a second display unit (6), the strain module (3) sensing the deformation of the pulley (2) during rotation and generating a stress signal by the Wheatstone bridge unit (50) and the analog-to-digital conversion unit (51), the first display unit (53) displaying data from the processing unit (52), the second display unit (6) receiving the stress signal through the transmission module (4).

14. The sports pulley signal sensing device as claimed in claim 13, wherein the second display unit (6) is a bike computer, a smartphone, a network gateway, a cloud or a wireless network receiver.

15. The sports pulley signal sensing device as described in claim 13 further comprising a wearable device (102) having an ID identification code, the wearable device (102) is adapted to be worn on a user's left hand, right hand, left foot, or right foot, the ID identification code is used to determine a wearing position of the wearable device (102) to obtain an exercise amount of the user's left foot or right foot, and further calculate a percentage of work done by the left and right feet.

16. The sports pulley signal sensing device as claimed in claim 1, wherein the exercise equipment (10) is a treadmill, a stepper (101), a non-motorized treadmill, a rowing machine, a spin bike, a fan bike or a recumbent bike.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG. 1 is an exploded perspective view of the first embodiment of the present invention;

[0012] FIG. 2 is an assembled perspective view of the first embodiment of the present invention;

[0013] FIG. 3 is a schematic diagram showing the installation of the first strain gauge in the first embodiment of the present invention;

[0014] FIG. 4 is a schematic diagram showing the installation of the second strain gauge in the first embodiment of the present invention;

[0015] FIG. 5 is a schematic diagram showing the installation of the third strain gauge and fourth strain gauge in the first embodiment of the present invention;

[0016] FIG. 6 is a schematic diagram showing the installation of the fifth strain gauge in the second embodiment of the present invention;

[0017] FIG. 7 is a circuit block diagram of the present invention;

[0018] FIG. 8 is a schematic diagram of the present invention used on a treadmill;

[0019] FIG. 9 is a schematic diagram of the present invention used on another treadmill; FIG. 10 is a schematic diagram of the present invention used on a stepper;

[0020] FIG. 11 is a schematic diagram of the present invention used on a non-motorized treadmill;

[0021] FIG. 12 is a schematic diagram (1) of another embodiment of the wireless power supply unit of the present invention, and

[0022] FIG. 13 is a schematic diagram (2) of yet another embodiment of the wireless power supply unit of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0023] Please refer to FIGS. 1 to 13, the sports pulley signal sensing device of the first embodiment of the present invention comprises a flywheel 1 mounted on an exercise equipment 10 and having a first transmission part 11. In this embodiment, the exercise equipment 10 can be an exercise bike 100, a stepper 101, a non-motorized treadmill 103, a rowing machine, a spin bike, a fan bike or a recumbent bike. A pulley 2 has a mounting area 20 recessed within the pulley 2, and the mounting area 20 has a second transmission part 200 and an accommodation groove 201. The second transmission part 200 is located at the center position of the pulley 2 and assembled to the first transmission part 11 of the flywheel 1. The second transmission part 200 extends outward with a plurality of ribs 21, and each rib 21 is connected to the groove wall of the accommodation groove 201. Each rib 21 has a first surface 210 and a second surface 211 (as shown in FIGS. 1 to 5). A strain module 3 is mounted in the mounting area 20 of the pulley 2. The strain module 3 has a plurality of first strain gauges 30, a plurality of second strain gauges 31, a plurality of third strain gauges 32 and a plurality of fourth strain gauges 33. Furthermore, each first strain gauge 30 is mounted on the first surface 210, or each second strain gauge 31 is mounted on the second surface 211, or each third strain gauge 32 and each fourth strain gauge 33 are respectively mounted on the first surface 210 and the second surface 211.

[0024] In use, the user wears a wearable device 102 on his/her left hand, right hand, left foot, or right foot. The wearable device 102 has an ID identification code, and the wearing position of the wearable device 102 is determined by the ID identification code to obtain the exercise amount of the user's left foot or right foot, and further calculate the percentage of work done by the left and right feet. When the user exercises on the exercise bike 100, the flywheel 1 synchronously drives the pulley 2 to rotate with the first transmission part 11 as the center, at this time the first strain gauge 30 to the fourth strain gauge 33 of the strain module 3 respectively sense the deformation of the pulley 2 during rotation, while the wearable device 102 senses the user's exercise state (such as exercise count) and calculates the deformation and wattage values of the strain gauges during left foot/right foot exercise.

[0025] The sports pulley signal sensing device of the present invention further comprises a transmission module 4, a wireless power supply unit 40 and a power unit 41. The transmission module 4 is mounted on the second transmission part 200 of the pulley 2. In this embodiment, the wireless power supply unit 40 can be a resonant wireless power supply for wirelessly transmitting power to the power unit 41. The wireless power supply unit 40 and the power unit 41 are enclosed within the first cover 42, the second cover 43 and the third cover 44 to prevent damage to the wireless power supply unit 40 and the power unit 41. In this embodiment, the power unit 41 can be a USB device or battery.

[0026] Furthermore, please refer to FIGS. 12 and 13, the wireless power supply unit 40 of the present invention can adopt the following power generation device 9 for power generation, comprising a flywheel rotor 7, a magnet rotor 71 and a power generation stator 8. The flywheel rotor 7 has a bearing 72 at its axis, the bearing 72 is for the shaft 73 to pass through, so that the flywheel rotor 7 can rotate on the shaft 73 with the shaft 73 as the axis through the bearing 72. The magnet rotor 71 is disposed on one side of the flywheel rotor 7, and is composed of a plurality of magnets 710 arranged around the axis of the flywheel rotor 7 and disposed on the surface of the flywheel rotor 7. The plurality of magnets 710 are fixed or embedded on the surface of the flywheel rotor 7, or the plurality of magnets 710 are integrally formed with the flywheel rotor 7. The power generation stator 8 is disposed in the direction of the side of the flywheel rotor 7 where the magnet rotor 71 is provided, and the axis of the power generation stator 8 is disposed on the shaft 73. In addition, the power generation stator 8 has a plurality of power generation coils 81 disposed on the side facing the flywheel rotor 7. The position and number of the plurality of power generation coils 81 correspond to the position and number of the plurality of magnets 710 of the magnet rotor 71. Each power generation coil 81 includes an iron core 810 and an annular coil 811 wrapped around the outer edge of the iron core 810.

[0027] Accordingly, the flywheel rotor 7 is driven by external driving force to rotate on the shaft 73 by using the bearing 72, and the plurality of magnets 710 of the magnet rotor 71 disposed on the flywheel rotor 7 also rotate with the flywheel rotor 7. At this time, since the plurality of power generation coils 81 disposed on the side of the power generation stator 8 facing the flywheel rotor 7 correspond to the position and number of the plurality of magnets 710, when the flywheel rotor 7 drives the plurality of magnets 710 to rotate, the plurality of magnets 710 interact with the plurality of power generation coils 81 to generate magnetic field cutting changes and produce voltage and current to achieve power generation effect. In this embodiment, the power generation device 9 can be integrated with the flywheel 1, and the power generation device 9 can also be used for other electronic devices.

[0028] Furthermore, the sports pulley signal sensing device of the present invention further comprises a control module 5 which is electrically connected to the strain module 3 and the transmission module 4 respectively. The control module 5 has a Wheatstone bridge unit 50 for signal transmission, an analog-to-digital conversion unit 51, a processing unit 52, a first display unit 53 and a second display unit 6. The strain module 3 senses the deformation of the pulley 2 during rotation and after passing through the Wheatstone bridge unit 50 and the analog-to-digital conversion unit 51, generates a stress signal and transmits it to the second display unit 6 through the transmission module 4. In this embodiment, the first display unit 53 is used to display data from the processing unit 52, and the second display unit 6 can be a bike computer, a smartphone, a wearable device 102, a network gateway, a cloud or a wireless network receiver.

[0029] The second embodiment of the sports pulley signal sensing device of the present invention comprises a flywheel 1 mounted on exercise equipment 10 and having a first transmission part 11. In this embodiment, the exercise equipment 10 can be an exercise bike 100 or a stepper 101. A pulley 2 has a mounting area 20 recessed within the pulley 2, and the mounting area 20 has a second transmission part 200 and an accommodation groove 201. The second transmission part 200 is connected to the center position of the pulley 2 and assembled to the first transmission part 11 of the flywheel 1. The second transmission part 200 extends outward to form a full-surface receiving surface 22. The receiving surface 22 is connected to the inner wall of the accommodation groove 201 and has a plurality of receiving holes 220 (as shown in FIG. 6). A strain module 3 is mounted in the mounting area 20 of the pulley 2, and the strain module 3 has a plurality of fifth strain gauges 34. Furthermore, each fifth strain gauge 34 is mounted in each receiving hole 220 of the receiving surface 22.

[0030] In use, the user wears a wearable device 102 with an ID identification code on the hand or leg, when the user exercises on the exercise bike 100, the flywheel 1 synchronously drives the pulley 2 to rotate with the first transmission part 11 as the center. Each strain gauge of the strain module 3 can sense the deformation of the pulley 2 during rotation, while the wearable device 102 senses the user's exercise state and calculates the deformation and wattage values of the strain gauges during left foot/right foot exercise.

[0031] The sports pulley signal sensing device of the present invention further comprises a transmission module 4, a wireless power supply unit 40 and a power unit 41. The transmission module 4 is mounted on the second transmission part 200 of the pulley 2. In this embodiment, the wireless power supply unit 40 can be a resonant wireless power supply for wirelessly transmitting power to the power unit 41, or the wireless power supply unit 40 has electrically connected wireless charging receiver and wireless charging transmitter. The wireless power supply unit 40 and the power unit 41 are enclosed within the first cover 42, the second cover 43 and the third cover 44 to prevent damage to the wireless power supply unit 40 and the power unit 41. In this embodiment, the power unit 41 can be a USB device or battery.

[0032] The sports pulley signal sensing device of the present invention further comprises a control module 5 which is electrically connected to the strain module 3 and the transmission module 4 respectively. The control module 5 has a Wheatstone bridge unit 50 for signal transmission, an analog-to-digital conversion unit 51, a processing unit 52 and a first display unit 53. The strain module 3 senses the deformation of the pulley 2 during rotation and after passing through the Wheatstone bridge unit 50 and the analog-to-digital conversion unit 51, generates a stress signal and transmits it to the second display unit 6 through the transmission module 4. In this embodiment, the first display unit 53 is used to display data from the processing unit 52, and the second display unit 6 can be a bike computer, a smartphone, a wearable device 102, a network gateway, a cloud or a wireless network receiver.

[0033] While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.