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.

What is claimed is: 
     
         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.