Exercise bicycle and use method thereof

Abstract

The exercise bicycle comprises a main frame, a front-arranged rod is arranged at the position, close to the left side, of an inner cavity of the main frame in a penetrating mode, a water cup holder is fixedly connected to the position, close to the top end, of the right side of the front-arranged rod, a handle is installed at the top end of the front-arranged rod, and an inclined rod is fixedly connected to the bottom end of the front-arranged rod; an adjusting rod is arranged at the position, close to the right side, of an inner cavity of the main frame in a penetrating mode, and a cushion is fixedly connected to the top end of the adjusting rod. When the colorimeter detects that the surface of the rolling body is yellow, it can be judged that the rolling body changes color slightly, meanwhile, lubricating oil in the inner cavity of the storage pipe enters the inner cavity of the rolling body through the conveying pipe, and the lubricating oil is smeared again.

Description

Technical Field

[0001] This invention relates to the field of exercise bike technology, specifically to an exercise bike and its usage method. Background Technology

[0002] Exercise bikes come in two types: upright and backrest. They allow you to adjust the intensity of your workout to achieve a fitness effect, hence the name "exercise bike." However, prolonged use of exercise bikes can put a tremendous load on the bearings, leading to issues such as dents, wear, ring breakage, high operating temperatures, premature fatigue, and premature failure.

[0003] When bearings are used in high-temperature environments for extended periods, their surfaces may discolor. When a bearing discolors to a bluish-black or purplish-blue color, it indicates a burn-like condition. In such cases, the discolored bearing can no longer be used. However, existing exercise bikes do not have built-in maintenance functions for bearing discoloration. When users disassemble the exercise bike to maintain the bearings, in most cases the bearings are already unusable, resulting in economic losses. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution: a fitness bike, comprising a main frame, a front bar extending through the inner cavity of the main frame near the left side, a cup holder fixedly connected to the right side of the front bar near the top, a handle mounted on the top of the front bar, and a diagonal bar fixedly connected to the bottom of the front bar; an adjustment rod extending through the inner cavity of the main frame near the right side, a seat cushion fixedly connected to the top of the adjustment rod, and a crossbar fixedly connected to the bottom of the adjustment rod and the diagonal bar; support plates fixedly connected to both ends of the crossbar; protective covers mounted on the front and rear sides of the main frame; and the top of the crossbar near the center. A brake wheel is installed at the location. A welding block is fixedly connected to the left side of the adjusting rod near the bottom. A bearing is installed on the left side of the welding block. A transmission rod runs through the inner cavity of the bearing. A flywheel is sleeved on the outer side of the transmission rod and fixedly connected to the bearing. Foot pedals are fixedly connected to both ends of the transmission rod. An opening is provided on the left side of the bearing. Several rolling elements are provided in the inner cavity of the bearing, and these rolling elements are arranged in a circular array around the center of the bearing. An inner ring and an outer ring are provided on the bearing. An annular opening is provided on the front side of the bearing, and the annular opening is interconnected with the inner cavity of the bearing. A connecting plate is fixedly connected to the front side of the inner ring. The inner ring is fixedly connected to the outer ring through the connecting plate. A grinding disc is provided in the inner cavity of the annular opening, and the outer side of the grinding disc is in contact with the inner wall of the outer ring. The inner side of the grinding disc is in contact with the outer side of the rolling element. A rotating ring is sleeved on the outer side of the transmission rod near the center, and the rotating ring is located behind the connecting plate. A vertical plate is fixedly connected to the bottom of the grinding disc near the front side, and the bottom of the vertical plate is fixedly connected to the rotating ring. Several first tooth blocks are fixedly connected to the outer side of the rotating ring near the front end, and the several first tooth blocks are arranged in a circular array with the center of the rotating ring as the center. The rotating ring has a transmission gear on its left side, which meshes with the adjacent first tooth block. A drive gear meshes with the left side of the transmission gear. A first rotating shaft is fixedly installed through the center of both the drive gear and the transmission gear. A collar is sleeved on the outer side of both first rotating shafts near the front end. A fixing plate is fixedly connected to the bottom of both collars. An L-shaped fixing member is fixedly connected to the center of the bottom of the fixing plate. The side of the L-shaped fixing member away from the fixing plate is fixedly connected to a connecting plate. A second motor is located at the front end of the first rotating shaft on the left side. The power output shaft of the second motor is fixedly connected to the first rotating shaft.

[0005] Preferably, a base plate is fixedly connected to the left side of the adjusting rod near the bottom. The base plate has two circular plates at its top, arranged symmetrically vertically. Two material storage tubes, arranged symmetrically horizontally, are inserted through the inner cavity of the upper circular plate and fixedly connected to it. A feed pipe is fixedly connected to the top of the right-side material storage tube, and a protective cover passes through the top of the feed pipe. Two discharge pipes, also symmetrically arranged horizontally, are fixedly connected to the bottom of the lower circular plate. A cylinder is fixedly connected to the bottom center of the circular plate. A central shaft is provided through the center of the upper circular plate and fixedly connected to it. The bottom end of the central shaft extends into the inner cavity of the cylinder. A main shaft is fixedly connected to the bottom end of the central shaft. Two limiting plates are sleeved on the outside of the central shaft. The two limiting plates are arranged symmetrically at the top and bottom. Anti-detachment blocks are fixedly connected to the right side of the two limiting plates. F-shaped fixing plates are fixedly connected to the front and rear sides of the two limiting plates and the anti-detachment blocks. The bottom of the several F-shaped fixing plates is fixedly connected to the bottom plate.

[0006] Preferably, two annular plates are fixedly sleeved on the outer side of the cylinder near the bottom end, and the two annular plates are arranged symmetrically. A guide ring is sleeved on the outer side of the cylinder near the top end, and the bottom of the guide ring near the left side has a bevel. A connector is fixedly connected to the bottom of the guide ring near the right side. A positioning ring is between the two annular plates and is sleeved on the cylinder. A linkage plate is fixedly connected to the right side of the positioning ring. A reciprocating rod is fixedly connected to the center of the bottom of the linkage plate. The reciprocating rod has several meshing grooves, and the several meshing grooves are arranged linearly from top to bottom. Two anti-detachment blocks pass through the bottom end of the reciprocating rod. A drive gear is on the right side of the reciprocating rod, and the drive gear meshes with the adjacent meshing groove. A movable rod passes through the center of the drive gear and is fixedly connected to it. A side plate is sleeved on the outer side of the movable rod. The left side of the side plate is fixedly connected to the adjacent limiting plate. A crank handle is fixedly connected to the front end of the movable rod.

[0007] Preferably, a rotating gear is fixedly connected to the bottom end of the main shaft, and a bonding plate is fixedly connected to the bottom of the rotating gear. Arc-shaped grooves are provided on both the left and right sides of the bonding plate. A rotating plate is located on the left side of the rotating gear, and several second tooth blocks are fixedly connected to the outer side of the rotating plate. These second tooth blocks are arranged in a circular array around the center of the rotating plate, and the rotating plate is in contact with the arc-shaped grooves. A second rotating shaft passes through the center of the rotating plate and is fixedly connected to it. A driven bevel gear is fixedly connected to the bottom end of the second rotating shaft. A driving bevel gear meshes with the right side of the driven bevel gear. An installation port is provided near the bottom of the front side of the adjusting rod. A first motor is installed inside the cavity of the installation port. A movable shaft is fixedly connected to the power output shaft of the first motor. A driving bevel gear is fixedly connected to the left end of the movable shaft, and the driving bevel gear meshes with the driven bevel gear.

[0008] Preferably, a hinge plate is fixedly connected to one side of each of the two discharge pipes, and a swing plate is hinged to the hinge plate. A sliding rod is fixedly connected to the top of the swing plate near the main shaft, and the top of the sliding rod is in contact with the bottom of the guide ring. A cover plate is fixedly connected to the side of the swing plate away from the main shaft, and the size of the cover plate is the same as the diameter of the discharge pipe.

[0009] Preferably, the bottom end of the discharge pipe on the left side has a transmission pipe, the top end of the transmission pipe is fixedly connected to a funnel, a sleeve plate is fixedly sleeved on the outside of the transmission pipe, and the right side of the sleeve plate is fixedly connected to the base plate.

[0010] Preferably, a colorimeter is located on the left side of the bearing, and a first cable and a second cable are electrically connected to the top of the colorimeter. The first cable is electrically connected to a first motor, and the second cable is electrically connected to a second motor. A buzzer is provided on the colorimeter.

[0011] A method for using an exercise bike includes the following steps:

[0012] S1: When the rolling elements inside the bearing change color under the influence of temperature, the color of the rolling element surface can be compared with the standard sample by a colorimeter. When the surface color of the rolling element is yellow, the first motor can be started through the first cable.

[0013] S2: When the first motor starts, the power output shaft drives the active bevel gear to rotate. The active bevel gear meshes with the driven bevel gear, which drives the rotating plate to rotate. When the rotating plate rotates, the second tooth block on the surface drives the rotating gear to rotate. When the rotating gear rotates, it drives the main shaft to rotate. When the main shaft rotates, it drives the central shaft to rotate. When the central shaft rotates, it drives the upper circular plate to rotate. When the upper circular plate rotates, it drives the two storage tubes to rotate and move. When the storage tubes rotate and move, they come into contact with the discharge tube, which drives the lower circular plate to rotate and move. When the lower circular plate rotates and moves, it drives the swing plate to rotate and move. When the swing plate moves, it comes into contact with the guide ring through the sliding rod, which drives the cover plate to flip, so that the lubricating oil in the inner cavity of the storage tube flows into the inner cavity of the funnel. The lubricating oil can enter the annular opening through the transmission pipe and come into contact with the rolling elements to complete the lubrication.

[0014] S3: When it is necessary to change the capacity of the inner cavity of the storage tube, the user can remove the protective cover, shake the handle to drive the movable rod to rotate. When the movable rod rotates, it can drive the drive gear to rotate. The drive gear, through meshing with the meshing groove, can drive the reciprocating rod to move upward. When the reciprocating rod moves upward, it can drive the positioning ring to move upward through the linkage plate. The positioning ring, through contact with the two annular plates, can drive the cylinder to move upward. The cylinder can drive the circular plate to move upward, thereby driving the two discharge tubes to move upward, reducing the capacity of the inner cavity of the storage tube.

[0015] S4: When the surface color of the rolling element is dark yellow, the second motor can be started through the second cable. The second motor can drive the drive gear to rotate through the power output shaft. The drive gear can drive the transmission gear to rotate. The transmission gear can drive the rotating ring to rotate by meshing with several first tooth blocks. When the rotating ring rotates, it can drive the grinding disc to rotate through the vertical plate, thereby grinding the inner wall of the outer ring and the outer side of the rolling element and cleaning the grease deposited on the surface.

[0016] S5: When the surface of the rolling element is blue, the colorimeter can activate a buzzer to remind the user to replace the bearing.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention, through the cooperation of components such as a colorimeter, a first cable, a second cable, a cylinder, an annular plate, a positioning ring, a linkage plate, a reciprocating rod, a limiting plate, a rotating gear, and a rotating plate, can determine that the rolling element has slightly changed color when the colorimeter detects that the surface of the rolling element is yellow. At the same time, the lubricating oil in the inner cavity of the storage tube enters the inner cavity of the rolling element through the transmission tube and is reapplied with lubricating oil.

[0019] 2. This invention, through the cooperation of components such as a colorimeter, a first cable, a second cable, a connecting plate, a grinding disc, a first toothed block, a transmission gear, a drive gear, a collar, and a fixing plate, can determine that the rolling element has undergone moderate discoloration when the colorimeter detects that the surface of the rolling element is dark yellow. At the same time, the second motor is started to drive the grinding disc to rotate, which can grind the inside of the bearing and clean the grease deposited on the bearing surface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the assembly structure of the protective cover of the present invention;

[0022] Figure 3 This is a rear view of the assembly structure of the protective cover of the present invention;

[0023] Figure 4 This is a rear view of the internal structure of the protective cover of the present invention;

[0024] Figure 5 This is a front view of the structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the flywheel structure of the component of the present invention;

[0026] Figure 7 This is a schematic diagram of the bearing structure of the component of the present invention;

[0027] Figure 8 This is a front view of the circular plate structure of the component of the present invention;

[0028] Figure 9 This is a left view of the circular plate structure of the component of the present invention;

[0029] Figure 10 for Figure 8 Enlarged view of point A in the middle;

[0030] Figure 11 for Figure 9 Enlarged view of section B in the middle.

[0031] The following components are labeled in the diagram: 1. Main frame; 2. Adjusting rod; 3. Seat cushion; 4. Foot pedal; 5. Support plate; 6. Protective cover; 7. Front rod; 8. Handle; 9. Cup holder; 10. Brake wheel; 11. Diagonal bar; 12. Horizontal frame; 13. Feed pipe; 14. First cable; 15. Circular plate; 16. First motor; 17. Bearing; 18. Transmission rod; 19. Second motor; 20. Second cable; 21. Colorimeter; 22. Rolling element; 23. Grinding disc; 24. Connecting plate; 25. Vertical plate; 26. Rotating ring; 27. First tooth block; 28. Drive gear; 29. ​​Transmission gear; 30. Collar; 31. Fixing plate; 32. L-shaped fastener; 33. Storage pipe; 34. Funnel; 35. Central shaft; 36. Transmission pipe; 37. Sleeve plate; 38. Rotating plate; 39. Driven bevel gear; 40. Driving bevel gear; 41. Movable shaft; 42. Cylinder; 43. Annular plate; 44. Positioning ring; 45. Limiting plate; 46. Base plate; 47. Adhesive plate; 48. Rotating gear; 49. F-shaped fixing plate; 50. Main shaft; 51. Cover plate; 52. Handle; 53. Movable rod; 54. Side plate; 55. Anti-detachment block; 56. Drive gear; 57. Reciprocating rod; 58. Linkage plate; 59. Connecting piece; 60. Second tooth block; 61. Welding block; 62. Flywheel; 63. Discharge pipe; 64. Guide ring; 65. Sliding rod; 66. Swing plate; 67. Hinge plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-11This invention provides a technical solution: an exercise bike, including a main frame 1, a front bar 7 extending through the inner cavity of the main frame 1 near the left side, a cup holder 9 fixedly connected to the right side of the front bar 7 near the top, a handle 8 installed at the top of the front bar 7, and a diagonal bar 11 fixedly connected to the bottom of the front bar 7. An adjustment rod 2 extending through the inner cavity of the main frame 1 near the right side, a seat cushion 3 fixedly connected to the top of the adjustment rod 2, and a crossbar 12 fixedly connected to the bottom of the adjustment rod 2 and the diagonal bar 11. Support plates 5 are fixedly connected to both ends of the crossbar 12. Protective covers 6 are installed on both the front and rear sides of the main frame 1. A brake wheel 10 is installed near the center of the top of the crossbar 12. A welding block 61 is fixedly connected to the left side of rod 2 near the bottom. A bearing 17 is installed on the left side of the welding block 61. A transmission rod 18 runs through the inner cavity of the bearing 17. A flywheel 62 is sleeved on the outer side of the transmission rod 18 and fixedly connected to the bearing 17. Foot pedals 4 are fixedly connected to both ends of the transmission rod 18. An opening is provided on the left side of the bearing 17. Several rolling elements 22 are provided in the inner cavity of the bearing 17, and the rolling elements 22 are arranged in a circular array with the center of the bearing 17 as the center. An inner ring and an outer ring are provided on the bearing 17. An annular opening is provided on the front side of the bearing 17, and the annular opening is interconnected with the inner cavity of the bearing 17. A connecting rod is fixedly connected to the front side of the inner ring. The inner ring is fixedly connected to the outer ring via the connecting plate 24. A grinding disc 23 is provided in the inner cavity of the annular opening, with the outer side of the grinding disc 23 fitting against the inner wall of the outer ring and the inner side of the grinding disc 23 fitting against the outer side of the rolling element 22. A rotating ring 26 is sleeved on the outer side of the transmission rod 18 near its center, and the rotating ring 26 is located behind the connecting plate 24. A vertical plate 25 is fixedly connected to the bottom of the grinding disc 23 near its front side, and the bottom of the vertical plate 25 is fixedly connected to the rotating ring 26. Several first tooth blocks 27 are fixedly connected to the outer side of the rotating ring 26 near its front end, and these first tooth blocks 27 are arranged in a circular array around the center of the rotating ring 26. On the left side of the 6th gear is a transmission gear 29, which meshes with the adjacent first tooth block 27. On the left side of the transmission gear 29 is a drive gear 28. The center of both the drive gear 28 and the transmission gear 29 is fixedly connected to a first rotating shaft. The outer sides of the two first rotating shafts are fitted with collars 30 near the front end. The bottom of the two collars 30 is fixedly connected to a fixing plate 31. The center of the bottom of the fixing plate 31 is fixedly connected to an L-shaped fixing member 32. The side of the L-shaped fixing member 32 away from the fixing plate 31 is fixedly connected to a connecting plate 24. The front end of the first rotating shaft on the left side is a second motor 19. The power output shaft of the second motor 19 is fixedly connected to the first rotating shaft.

[0034] A base plate 46 is fixedly connected to the left side of the adjusting rod 2 near the bottom. The base plate 46 has two circular plates 15 on its top, arranged symmetrically. Two storage tubes 33, arranged symmetrically to the left and right, are inserted through the inner cavity of the upper circular plate 15 and are fixedly connected to it. A feed pipe 13 is fixedly connected to the top of the right-side storage tube 33, with a protective cover 6 passing through its top. Two discharge pipes 63, arranged symmetrically to the left and right, are fixedly connected to the bottom of the lower circular plate 15. A cylinder 42 is fixedly connected to the center of the bottom of the lower circular plate 15. A central shaft 35 is inserted through the center of the upper circular plate 15 and fixedly connected to it. The bottom end of the central shaft 35 extends to the cylinder 42. The inner cavity of cylinder 2 has a main shaft 50 fixedly connected to the bottom of the central shaft 35. Two limiting plates 45 are sleeved on the outside of the central shaft 35, and the two limiting plates 45 are arranged symmetrically. Anti-detachment blocks 55 are fixedly connected to the right side of each of the two limiting plates 45. F-shaped fixing plates 49 are fixedly connected to the front and rear sides of the two limiting plates 45 and the anti-detachment blocks 55. The bottom of several F-shaped fixing plates 49 are fixedly connected to the bottom plate 46. Two annular plates 43 are fixedly sleeved on the outside of the cylinder 42 near the bottom end, and the two annular plates 43 are arranged symmetrically. A guide ring 64 is sleeved on the outside of the cylinder 42 near the top end, and the bottom of the guide ring 64 has a bevel near the left side. A connector 59 is fixedly connected to the bottom of the guide ring 64 near the right side. There is a positioning between the two annular plates 43. A positioning ring 44 is fitted onto a cylinder 42. A linkage plate 58 is fixedly connected to the right side of the positioning ring 44. A reciprocating rod 57 is fixedly connected to the center of the bottom of the linkage plate 58. Several meshing grooves are provided on the reciprocating rod 57, and the meshing grooves are arranged linearly from top to bottom. Two anti-detachment blocks 55 pass through the bottom end of the reciprocating rod 57. A drive gear 56 is located on the right side of the reciprocating rod 57. The drive gear 56 meshes with the adjacent meshing groove. A movable rod 53 passes through the center of the drive gear 56 and is fixedly connected to it. A side plate 54 is fitted onto the outside of the movable rod 53. The left side of the side plate 54 is fixedly connected to the adjacent limiting plate 45. A crank handle 52 is fixedly connected to the front end of the movable rod 53. A rotating gear 48 is fixedly connected to the bottom end of the main shaft 50. A bonding plate 47 is attached, and arc-shaped grooves are opened on both the left and right sides of the bonding plate 47. A rotating plate 38 is located on the left side of the rotating gear 48, and several second tooth blocks 60 are fixedly connected to the outer side of the rotating plate 38. The several second tooth blocks 60 are arranged in a circular array with the center of the rotating plate 38 as the center, and the rotating plate 38 fits into the arc-shaped grooves. A second rotating shaft is inserted through the center of the rotating plate 38 and fixedly connected to it. A driven bevel gear 39 is fixedly connected to the bottom end of the second rotating shaft. A driving bevel gear 40 meshes with the right side of the driven bevel gear 39. An installation port is opened on the front side of the adjusting rod 2 near the bottom. A first motor 16 is installed in the inner cavity of the installation port. A movable shaft 41 is fixedly connected to the power output shaft of the first motor 16. The driving bevel gear 40 is fixedly connected to the left end of the movable shaft 41.The active bevel gear 40 meshes with the driven bevel gear 39. A hinge plate 67 is fixedly connected to one side of each of the two discharge pipes 63. A swing plate 66 is hinged to the hinge plate 67. A sliding rod 65 is fixedly connected to the top of the swing plate 66 near the main shaft 50, and the top of the sliding rod 65 is in contact with the bottom of the guide ring 64. A cover plate 51 is fixedly connected to the side of the swing plate 66 away from the main shaft 50, and the size of the cover plate 51 is the same as the diameter of the discharge pipe 63. A transmission pipe 36 is located at the bottom of the discharge pipe 63 on the left side. A funnel 34 is fixedly connected to the top of the transmission pipe 36. A sleeve plate 37 is fixedly sleeved on the outside of the transmission pipe 36. The right side of the sleeve plate 37 is fixedly connected to the base plate 46. A colorimeter 21 is located to the left of the bearing 17. A first cable 14 and a second cable 20 are electrically connected to the top of the colorimeter 21. The first cable 14 is electrically connected to the first motor 16, and the second cable 20 is electrically connected to the second motor 19. A buzzer is installed on the colorimeter 21. ,

[0035] A method for using an exercise bike includes the following steps:

[0036] S1: When the rolling element 22 inside the bearing 17 changes color under the action of temperature, the color of the surface of the rolling element 22 can be compared with the standard sample by the colorimeter 21. When the surface color of the rolling element 22 is yellow, the first motor 16 can be started through the first cable 14.

[0037] S2: When the first motor 16 starts, it drives the driving bevel gear 40 to rotate via the power output shaft. The driving bevel gear 40, through meshing with the driven bevel gear 39, drives the rotating plate 38 to rotate. When the rotating plate 38 rotates, the second tooth block 60 on its surface drives the rotating gear 48 to rotate. When the rotating gear 48 rotates, it drives the main shaft 50 to rotate. When the main shaft 50 rotates, it drives the central shaft 35 to rotate. When the central shaft 35 rotates, it drives the upper circular plate 15 to rotate. When the upper circular plate 15 rotates... It can drive the two storage tubes 33 to rotate and move. When the storage tubes 33 rotate and move, they can drive the circular plate 15 located below to rotate and move by contacting the discharge tube 63. When the circular plate 15 located below rotates and moves, it can drive the swing plate 66 to rotate and move. When the swing plate 66 moves, it can drive the cover plate 51 to flip by contacting the guide ring 64 through the sliding rod 65. This allows the lubricating oil in the inner cavity of the storage tubes 33 to flow into the inner cavity of the funnel 34. The lubricating oil can enter the annular opening through the transmission pipe 36 and contact the rolling element 22 to complete the lubrication.

[0038] S3: When it is necessary to change the capacity of the inner cavity of the storage tube 33, the user can remove the protective cover 6, shake the crank 52 to drive the movable rod 53 to rotate. When the movable rod 53 rotates, it can drive the drive gear 56 to rotate. The drive gear 56 can drive the reciprocating rod 57 to move upward by meshing with the meshing groove. When the reciprocating rod 57 moves upward, it can drive the positioning ring 44 to move upward through the linkage plate 58. The positioning ring 44 can drive the cylinder 42 to move upward by sticking to the two annular plates 43. The cylinder 42 can drive the circular plate 15 to move upward, thereby driving the two discharge tubes 63 to move upward, reducing the capacity of the inner cavity of the storage tube 33.

[0039] S4: When the surface color of the rolling element 22 is dark yellow, the second motor 19 can be started through the second cable 20. The second motor 19 can drive the drive gear 28 to rotate through the power output shaft. The drive gear 28 can drive the transmission gear 29 to rotate. The transmission gear 29 can drive the rotating ring 26 to rotate by meshing with a number of first tooth blocks 27. When the rotating ring 26 rotates, the grinding disc 23 can be driven to rotate through the vertical plate 25, thereby grinding the inner wall of the outer ring and the outer side of the rolling element 22 and cleaning the grease deposited on the surface.

[0040] S5: When the surface of the rolling element 22 is blue, the colorimeter 21 can activate the buzzer to remind the user to replace the bearing 17.

[0041] Working principle: When the rolling element 22 inside the bearing 17 changes color under temperature, the color difference meter 21 can compare the color of the rolling element 22 surface with a standard sample. When the surface color of the rolling element 22 is yellow, the first motor 16 can be started through the first cable 14. When the first motor 16 is started, it drives the active bevel gear 40 to rotate through the power output shaft. The active bevel gear 40, through meshing with the driven bevel gear 39, drives the rotating plate 38 to rotate. When the rotating plate 38 rotates, the second tooth block 60 on its surface drives the rotating gear 48 to rotate. When the rotating gear 48 rotates, it drives the main shaft 50 to rotate. When rotated, the central shaft 35 rotates, which in turn rotates the upper circular plate 15. The rotation of the upper circular plate 15 then rotates the two storage pipes 33. As the storage pipes 33 rotate and move, they engage with the discharge pipe 63, causing the lower circular plate 15 to rotate and move. This rotation of the lower circular plate 15 then rotates the swing plate 66. When the swing plate 66 moves, it engages with the guide ring 64 via the sliding rod 65, causing the cover plate 51 to flip. This allows the lubricating oil inside the storage pipes 33 to flow into the inner cavity of the funnel 34. The lubricating oil can then enter through the transmission pipe 36. The annular opening contacts the rolling element 22 for lubrication. When the capacity of the inner cavity of the storage tube 33 needs to be changed, the user can remove the protective cover 6 and crank the handle 52 to rotate the movable rod 53. When the movable rod 53 rotates, it drives the drive gear 56 to rotate. The drive gear 56, through engagement with the meshing groove, drives the reciprocating rod 57 to move upward. When the reciprocating rod 57 moves upward, it drives the positioning ring 44 to move upward through the linkage plate 58. The positioning ring 44, through contact with the two annular plates 43, drives the cylinder 42 to move upward. The cylinder 42 drives the circular plate 15 to move upward, thereby driving the two discharge tubes 63 to move upward, reducing the capacity of the storage tube 33. 3. The capacity of the inner cavity: When the surface color of the rolling element 22 is dark yellow, the second motor 19 can be started through the second cable 20. The second motor 19 can drive the drive gear 28 to rotate through the power output shaft. The drive gear 28 can drive the transmission gear 29 to rotate. The transmission gear 29 can drive the rotating ring 26 to rotate by meshing with several first tooth blocks 27. When the rotating ring 26 rotates, the grinding disc 23 can be driven to rotate through the vertical plate 25, thereby grinding the inner wall of the outer ring and the outer side of the rolling element 22 and cleaning the grease deposited on the surface. When the surface of the rolling element 22 is blue, the colorimeter 21 can start the buzzer to remind the user to replace the bearing 17.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exercise bike, comprising a main frame (1), characterized in that: A front rod (7) is provided through the inner cavity of the main frame (1) near the left side. A cup holder (9) is fixedly connected to the right side of the front rod (7) near the top. A handle (8) is installed at the top of the front rod (7). A diagonal rod (11) is fixedly connected to the bottom of the front rod (7). An adjustment rod (2) is provided through the inner cavity of the main frame (1) near the right side. A seat cushion (3) is fixedly connected to the top of the adjustment rod (2). A crossbar (12) is fixedly connected to the bottom of the adjustment rod (2) and the diagonal rod (11). Support plates (5) are fixedly connected to both the left and right ends of the crossbar (12). Protective covers (6) are installed on both the front and rear sides of the main frame (1). A brake wheel (10) is installed near the center of the top of the crossbar (12). The adjusting rod (2) is fixedly connected to a welding block (61) near the bottom on the left side. A bearing (17) is installed on the left side of the welding block (61). A transmission rod (18) is provided through the inner cavity of the bearing (17). A flywheel (62) is sleeved on the outer side of the transmission rod (18) and is fixedly connected to the bearing (17). Foot pedals (4) are fixedly connected to both ends of the transmission rod (18). An opening is provided on the left side of the bearing (17). Several rolling elements (22) are provided in the inner cavity of the bearing (17). The rolling elements (22) are arranged in a circular array with the center of the bearing (17) as the center. An inner ring and an outer ring are provided on the bearing (17). An opening is provided on the front side of the bearing (17). The annular opening is interconnected with the inner cavity of the bearing (17). A connecting plate (24) is fixedly connected to the front side of the inner ring. The inner ring is fixedly connected to the outer ring through the connecting plate (24). A grinding disc (23) is provided in the inner cavity of the annular opening. The outer side of the grinding disc (23) is in contact with the inner wall of the outer ring. The inner side of the grinding disc (23) is in contact with the outer side of the rolling element (22). A rotating ring (26) is sleeved on the outer side of the transmission rod (18) near the center. The rotating ring (26) is located behind the connecting plate (24). A vertical plate (25) is fixedly connected to the bottom of the grinding disc (23) near the front side. The bottom of the vertical plate (25) is fixedly connected to the rotating ring (26). The outer side of the rotating ring (26) is... Several first tooth blocks (27) are fixedly connected near the front end of the rotating ring (26), and the several first tooth blocks (27) are arranged in a circular array with the center of the rotating ring (26) as the center. There is a transmission gear (29) on the left side of the rotating ring (26), and the transmission gear (29) meshes with the adjacent first tooth block (27). A drive gear (28) meshes with the left side of the transmission gear (29). A first rotating shaft is fixedly provided through the center of both the drive gear (28) and the transmission gear (29). A collar (30) is sleeved on the outer side of both first rotating shafts near the front end. A fixing plate (31) is fixedly connected to the bottom of both collars (30). An L-shaped fixing member (32) is fixedly connected to the center of the bottom of the fixing plate (31).Furthermore, the side of the L-shaped fixing member (32) away from the fixing plate (31) is fixedly connected to the connecting plate (24), and a second motor (19) is located at the front end of the first rotating shaft on the left side. The power output shaft of the second motor (19) is fixedly connected to the first rotating shaft.

2. The exercise bike according to claim 1, characterized in that: A base plate (46) is fixedly connected to the left side of the adjusting rod (2) near the bottom. The base plate (46) has two circular plates (15) on its top, which are arranged symmetrically. The upper circular plate (15) has two storage tubes (33) running through its inner cavity, which are arranged symmetrically to the left and right and fixedly connected to it. The upper storage tube (33) has a feed pipe (13) fixedly connected to its top end, and the top end of the feed pipe (13) is penetrated by a protective cover (6). The lower circular plate (15) has two discharge pipes (63) fixedly connected to its bottom, which are arranged symmetrically to the left and right. The lower circular plate (15) has two discharge pipes (63) fixedly connected to its bottom end, which are arranged symmetrically to the left and right. 5) A cylinder (42) is fixedly connected to the bottom center. A central shaft (35) is provided through the center of the upper circular plate (15) and fixedly connected to it. The bottom end of the central shaft (35) extends into the inner cavity of the cylinder (42). A main shaft (50) is fixedly connected to the bottom end of the central shaft (35). Two limiting plates (45) are sleeved on the outside of the central shaft (35). The two limiting plates (45) are arranged symmetrically up and down. Anti-detachment blocks (55) are fixedly connected to the right side of the two limiting plates (45). F-shaped fixing plates (49) are fixedly connected to the front and rear sides of the two limiting plates (45) and the anti-detachment blocks (55). The bottom of several F-shaped fixing plates (49) are fixedly connected to the bottom plate (46).

3. The exercise bike according to claim 2, characterized in that: Two annular plates (43) are fixedly sleeved on the outer side of the cylinder (42) near the bottom end, and the two annular plates (43) are arranged symmetrically. A guide ring (64) is sleeved on the outer side of the cylinder (42) near the top end, and the bottom of the guide ring (64) near the left side has a bevel. A connector (59) is fixedly connected to the bottom of the guide ring (64) near the right side. A positioning ring (44) is between the two annular plates (43), and the positioning ring (44) is sleeved on the cylinder (42). A linkage plate (58) is fixedly connected to the right side of the positioning ring (44), and a [missing information] is fixedly connected to the center of the bottom of the linkage plate (58). A reciprocating rod (57) is provided with several meshing grooves, which are arranged linearly from top to bottom. Two anti-disengagement blocks (55) pass through the bottom end of the reciprocating rod (57). A drive gear (56) is provided on the right side of the reciprocating rod (57). The drive gear (56) meshes with the adjacent meshing groove. A movable rod (53) passes through the center of the drive gear (56) and is fixedly connected to it. A side plate (54) is sleeved on the outside of the movable rod (53). The left side of the side plate (54) is fixedly connected to the adjacent limiting plate (45). A crank handle (52) is fixedly connected to the front end of the movable rod (53).

4. The exercise bike according to claim 3, characterized in that: A rotating gear (48) is fixedly connected to the bottom end of the main shaft (50). A fitting plate (47) is fixedly connected to the bottom of the rotating gear (48), and arc-shaped grooves are provided on both the left and right sides of the fitting plate (47). A rotating plate (38) is located on the left side of the rotating gear (48), and several second tooth blocks (60) are fixedly connected to the outer side of the rotating plate (38). The several second tooth blocks (60) are arranged in a circular array with the center of the rotating plate (38) as the center. The rotating plate (38) fits into the arc-shaped grooves, and a through-hole is provided at the center of the rotating plate (38). The second rotating shaft is fixedly connected to it. A driven bevel gear (39) is fixedly connected to the bottom end of the second rotating shaft. A driving bevel gear (40) meshes with the right side of the driven bevel gear (39). An installation port is opened on the front side of the adjusting rod (2) near the bottom. A first motor (16) is installed in the inner cavity of the installation port. A movable shaft (41) is fixedly connected to the power output shaft of the first motor (16). A driving bevel gear (40) is fixedly connected to the left end of the movable shaft (41). The driving bevel gear (40) meshes with the driven bevel gear (39).

5. The exercise bike according to claim 3, characterized in that: A hinge plate (67) is fixedly connected to one side of each of the two discharge pipes (63). A swing plate (66) is hinged to the hinge plate (67). A sliding rod (65) is fixedly connected to the top of the swing plate (66) near the main shaft (50), and the top of the sliding rod (65) is in contact with the bottom of the guide ring (64). A cover plate (51) is fixedly connected to the side of the swing plate (66) away from the main shaft (50), and the size of the cover plate (51) is the same as the diameter of the discharge pipe (63).

6. The exercise bike according to claim 5, characterized in that: The discharge pipe (63) located on the left side has a transmission pipe (36) at its bottom end. A funnel (34) is fixedly connected to the top of the transmission pipe (36). A sleeve plate (37) is fixedly sleeved on the outside of the transmission pipe (36). The right side of the sleeve plate (37) is fixedly connected to the base plate (46).

7. The exercise bike according to claim 6, characterized in that: A colorimeter (21) is located on the left side of the bearing (17). A first cable (14) and a second cable (20) are electrically connected to the top of the colorimeter (21). The first cable (14) is electrically connected to the first motor (16), and the second cable (20) is electrically connected to the second motor (19). A buzzer is installed on the colorimeter (21).

8. A method of using an exercise bike according to any one of claims 1-7, characterized in that, Includes the following steps: S1: When the rolling element (22) inside the bearing (17) changes color under the action of temperature, the color of the surface of the rolling element (22) can be compared with the standard sample by the colorimeter (21). When the surface color of the rolling element (22) is yellow, the first motor (16) can be started by the first cable (14). S2: When the first motor (16) starts, it can drive the active bevel gear (40) to rotate through the power output shaft. The active bevel gear (40) can drive the rotating plate (38) to rotate by meshing with the driven bevel gear (39). When the rotating plate (38) rotates, it can drive the rotating gear (48) to rotate through the second tooth block (60) on the surface. When the rotating gear (48) rotates, it can drive the main shaft (50) to rotate. When the main shaft (50) rotates, it can drive the central shaft (35) to rotate. When the central shaft (35) rotates, it can drive the circular plate (15) located above to rotate. When the circular plate (15) located above rotates... When the material storage tubes (33) rotate, they can rotate and move. When the material storage tubes (33) rotate and move, they can rotate and move the circular plate (15) located below by contacting the discharge tube (63). When the circular plate (15) located below rotates and moves, it can rotate and move the swing plate (66). When the swing plate (66) moves, it can rotate and move by contacting the guide ring (64) through the sliding rod (65). This can cause the cover plate (51) to flip, so that the lubricating oil in the inner cavity of the material storage tubes (33) flows into the inner cavity of the funnel (34). The lubricating oil can enter the annular opening through the transmission pipe (36) and contact the rolling element (22) to complete the lubrication. S3: When it is necessary to change the capacity of the inner cavity of the storage tube (33), the user can remove the protective cover (6), shake the handle (52) to drive the movable rod (53) to rotate. When the movable rod (53) rotates, it can drive the drive gear (56) to rotate. The drive gear (56) can drive the reciprocating rod (57) to move upward by meshing with the meshing groove. When the reciprocating rod (57) moves upward, it can drive the positioning ring (44) to move upward through the linkage plate (58). The positioning ring (44) can drive the cylinder (42) to move upward by fitting with the two annular plates (43). The cylinder (42) can drive the circular plate (15) to move upward, thereby driving the two discharge tubes (63) to move upward and reducing the capacity of the inner cavity of the storage tube (33). S4: When the surface color of the rolling element (22) is dark yellow, the second motor (19) can be started through the second cable (20). The second motor (19) can drive the drive gear (28) to rotate through the power output shaft. The drive gear (28) can drive the transmission gear (29) to rotate. The transmission gear (29) can drive the rotating ring (26) to rotate by meshing with several first tooth blocks (27). When the rotating ring (26) rotates, the grinding disc (23) can be driven to rotate through the vertical plate (25), thereby grinding the inner wall of the outer ring and the outer side of the rolling element (22) and cleaning the grease deposited on the surface. S5: When the surface of the rolling element (22) is blue, the colorimeter (21) can activate the buzzer to remind the user to replace the bearing (17).

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