Multifunctional folding exercise bicycle

Abstract

The utility model discloses a multifunctional folding exercise bicycle, which relates to the technical field of exercise bicycles and comprises an exercise bicycle main body, a handheld supporting mechanism is fixedly connected to the front upper part of the exercise bicycle main body, fixed supporting plates are arranged on the inner walls of the front side and the rear side of the lower part of the exercise bicycle main body, and a saddle mechanism is slidably connected to the inner wall of the rear upper part of the exercise bicycle main body. A lifting mechanism is in threaded connection with the inner wall below the saddle mechanism, a pedal mechanism is rotationally connected to the middle of the rear portion of the inner wall of the exercise bicycle body, and the lifting mechanism is arranged in the inner wall of the exercise bicycle body. The irregular size of the exercise bicycle main body can be further reduced through the detachable fixed supporting plate and the pedal mechanism, the exercise bicycle main body is folded, the foldable structure enables the exercise bicycle main body to be folded into a compact shape when the exercise bicycle main body is not used, the occupied space is greatly reduced, and the exercise bicycle is convenient to carry and move; the saddle mechanism can be lifted through the lifting mechanism, and flexible adjustment can be conducted according to individual differences such as the height and the leg length of a user.

Description

Technical Field

[0001] This utility model relates to the field of exercise bike technology, specifically to a multi-functional folding exercise bike. Background Technology

[0002] With increasing health awareness, fitness has become an important part of daily life. However, traditional fitness equipment is often bulky and takes up a lot of space, making it inconvenient for people with limited living space to store and store. Exercise bikes, in particular, often limit their use in small apartments due to their large size. Furthermore, single-function exercise bikes struggle to meet diverse fitness needs. Against this backdrop, the multi-functional folding exercise bike has emerged. Through clever design, it integrates multiple fitness functions into one unit and can be folded, significantly reducing its footprint and making it convenient for use in various environments such as homes and offices. This provides fitness enthusiasts with a more convenient, efficient, and diverse fitness solution, thus attracting increasing attention and favor.

[0003] Currently, traditional exercise bikes are large and have a fixed structure that cannot be folded. This results in them taking up a lot of space and being inconvenient to carry and move. In addition, exercise bikes with fixed seat heights cannot meet the comfortable riding needs of every user due to the large differences in height, leg length and body proportions among different users. Utility Model Content

[0004] This utility model provides a multi-functional folding exercise bike, which can effectively solve the problems of traditional exercise bikes being large in size and having a fixed structure that cannot be folded. This results in them taking up a lot of space and being inconvenient to carry and move. In addition, exercise bikes with fixed seat heights cannot meet the comfortable riding needs of each user due to the large differences in height, leg length and body proportions among different users.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A multifunctional folding exercise bike includes an exercise bike body, a hand grip support mechanism fixedly connected to the upper front of the exercise bike body, fixed support plates provided on the inner walls of the front and rear sides of the lower part of the exercise bike body, a seat mechanism slidably connected to the upper rear inner wall of the exercise bike body, a lifting mechanism threadedly connected to the inner wall below the seat mechanism, and a foot pedal mechanism rotatably connected to the middle rear part of the inner wall of the exercise bike body. The lifting mechanism is disposed in the inner wall of the exercise bike body.

[0007] A further improvement of this utility model is that: the exercise bike body includes a main body block one and a main body block two. A square fixing block is fixedly connected to the upper rear side of the main body block one. A circular sliding groove penetrating to the inner wall of the main body block one is opened above the square fixing block. Square sliding grooves are opened on both the left and right sides of the circular sliding groove. Fixing blocks are fixedly connected to the upper and lower right outer walls of the opposite sides of the main body block one and the main body block two. Fixing blocks two are fixedly connected to the upper and lower right outer walls of the opposite sides of the main body block two and the main body block one. The two fixing blocks two are positioned close to the opposite sides of the two fixing blocks. T-shaped cylinders are slidably connected to the inner walls of the fixing blocks and fixing blocks two. Rotating components are fixedly connected to the upper and lower left outer walls of the opposite sides of the main body block one and the main body block two. A circular hole is opened on the lower side of the side of the main body block one that is far away from the main body block two. Square grooves penetrating the inside and outside are opened on both the left and right sides of the inner wall of the circular hole. A circular rotating hole penetrating the left and right sides to the outside is opened on the inner wall of the side of the main body block one that is close to the main body block two.

[0008] A further improvement of the present invention is that the rotating assembly includes several circular rotating columns, and a fixing plate is fixedly connected to the opposite sides of two adjacent circular rotating columns. A T-shaped circular block is fixedly connected above two adjacent lower circular rotating columns. The outer wall of the T-shaped circular block is rotatably connected to the inner wall of the two adjacent upper circular rotating columns. The right side of the fixing plate on both sides is fixedly connected to the left side of the main body block one and the main body block two.

[0009] A further improvement of the present invention is that the fixed support plate includes two rectangular support blocks, and square blocks are fixedly connected to the opposite faces of the two rectangular support blocks. Screws are rotatably connected to the inner walls of the square blocks, and nuts are threadedly connected to the left outer walls of the screws. The outer walls of the square blocks are inserted into the inner walls of the square grooves, and the outer walls of the screws are movably connected to the inner walls of the circular holes.

[0010] A further improvement of this utility model is that: the foot pedal mechanism includes a circular rotating wheel, and square blocks two are fixedly connected to the left and right sides of the circular rotating wheel. Square grooves two are opened on the opposite sides of the two square blocks two. Circular holes two that pass through the inside and outside are opened on the front and back sides of the inner walls of the square grooves two. A square block three is inserted into the inner wall of the square grooves two. A screw two is rotatably connected to the inner wall of the square block three. A nut two is threadedly connected to the outer wall of the screw two. The outer wall of the screw two is movably connected to the inner wall of the circular hole two. Foot pedal rods are fixedly connected to the opposite sides of the two square blocks three. Foot pedals are fixedly connected to the opposite sides of the two foot pedal rods. The outer wall of the circular rotating wheel is rotatably connected to the inner wall of the circular rotating hole.

[0011] A further improvement of the present invention is that the hand grip support mechanism includes an arc-shaped fixing block, a square support rod is fixedly connected above the arc-shaped fixing block, a display screen is fixedly connected above the square support rod, a diagonal brace is fixedly connected to the upper rear side of the square support rod, a handle is fixedly connected to the rear of the diagonal brace, and the lower part of the arc-shaped fixing block is fixedly connected to the upper part of the main body block.

[0012] A further improvement of the present invention is that the seat mechanism includes a cylinder, a seat is fixedly connected to the top of the cylinder, square sliding blocks are fixedly connected to the left and right sides of the cylinder, a threaded groove is provided at the bottom of the cylinder, and the outer walls of the cylinder and the square sliding blocks are slidably connected to the inner walls of the circular sliding groove and the square sliding groove.

[0013] A further improvement of the present invention is that the lifting mechanism includes a threaded rod, the output end of which is fixedly connected to a motor, the outer wall of the motor is threadedly connected to the inner wall of the threaded groove, and the outer wall of the threaded rod is fixedly connected to the inner wall of the main body block.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. First, slide the T-shaped cylinder out of the fixed block and fixed block two. After turning the nut to disengage it from the screw thread, remove the screw. After pulling the square block out of the round hole, disassemble the rectangular support block and the square block. After turning the nut two to disengage it from the screw two thread, pull the screw two out of the round hole two. After pulling the square block three out of the square groove two, disassemble the pedal rod and pedal. Finally, after rotating the main body block one and main body block two through the T-shaped block and the upper round rotating column, fold them. The foldable structure allows the exercise bike body to be folded into a compact shape when not in use. The foldable design significantly reduces the space occupied by the exercise bike. The foldable structure makes the main body of the exercise bike smaller when folded, making it easy to carry and move. Users can easily move the exercise bike to different locations such as the living room, bedroom, and balcony as needed, and can even take it outdoors or for travel. This increases the flexibility and convenience of use. In addition, even if traditional exercise bikes are foldable, their pedals and fixing bars are usually not detachable, and they still have a large volume and irregular shape after folding. The detachable fixing support plate and pedal mechanism can further reduce the volume of the exercise bike after folding, improve space utilization, and make the various parts of the exercise bike lighter after disassembly.

[0016] 2. The motor is driven to rotate by the output end of the threaded rod. After the threaded rod rotates with the threaded groove, the cylindrical and square sliding blocks slide with the circular and square sliding grooves, allowing the seat to be raised or lowered. The seat height adjustment function can be flexibly adjusted according to the user's height, leg length and other individual differences, ensuring that the user's legs can be naturally extended while riding and both feet can step on the pedals smoothly, achieving the best exercise posture and improving the comfort and effect of exercise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the main structure of the exercise bike of this utility model;

[0020] Figure 4 This is a schematic diagram of the rotating component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the fixed support plate structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the foot pedal mechanism of this utility model;

[0023] Figure 7 This is a schematic diagram of the hand grip support mechanism of this utility model;

[0024] Figure 8 This is a schematic diagram of the seat mechanism and lifting mechanism of this utility model.

[0025] In the diagram: 1. Main body of the exercise bike; 2. Fixed support plate; 3. Foot pedal mechanism; 4. Hand grip support mechanism; 5. Seat mechanism; 6. Lifting mechanism; 11. Main block one; 12. Main block two; 13. Square fixing block; 14. Fixing block; 15. Fixing block two; 16. T-shaped cylinder; 17. Rotating assembly; 18. Circular sliding groove; 19. Square sliding groove; 112. Square groove; 113. Circular hole; 114. Circular rotating hole; 171. Circular rotating column; 172. Fixing plate; 173. T-shaped block; 2 1. Rectangular support block; 22. Square block; 23. Screw; 24. Nut; 31. Circular rotating wheel; 32. Square block two; 33. Square groove two; 34. Circular hole two; 35. Square block three; 36. Screw two; 37. Nut two; 38. Foot pedal bar; 39. Foot pedal; 41. Arc-shaped fixing block; 42. Square support rod; 43. Display screen; 44. Diagonal brace; 45. Handle; 51. Cylinder; 52. Square sliding block; 53. Seat one; 54. Threaded groove; 61. Motor; 62. Threaded rod. Detailed Implementation

[0026] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0027] like Figure 1-2 As shown, this utility model provides a multifunctional folding exercise bike, including an exercise bike body 1, a hand grip support mechanism 4 fixedly connected to the upper front of the exercise bike body 1, fixed support plates 2 provided on the lower front and rear inner walls of the exercise bike body 1, a seat mechanism 5 slidably connected to the upper rear inner wall of the exercise bike body 1, a lifting mechanism 6 threadedly connected to the lower inner wall of the seat mechanism 5, a foot pedal mechanism 3 rotatably connected to the rear of the inner wall of the exercise bike body 1 near the middle, and the lifting mechanism 6 is disposed in the inner wall of the exercise bike body 1.

[0028] The detachable fixed support plate 2 and foot pedal mechanism 3 further reduce the irregular volume of the exercise bike body 1. The foldable structure of the exercise bike body 1 allows it to be folded into a compact shape when not in use, greatly reducing the space occupied. The foldable structure makes the exercise bike body 1 smaller in size after folding, making it easy to carry and move. Users can easily move the exercise bike to different locations such as the living room, bedroom, and balcony as needed, and can even take it outdoors or for travel, increasing the flexibility and convenience of use. The lifting mechanism 6 allows the seat mechanism 5 to be raised and lowered, which can be flexibly adjusted according to the user's height, leg length, and other individual differences, ensuring that the user's legs can be naturally extended and both feet can step on the pedals smoothly while riding, achieving the best exercise posture and improving the comfort and effectiveness of exercise.

[0029] like Figure 3-6This utility model provides a technical solution: the main body 1 of the exercise bike includes a main body block 11 and a main body block 2 12. A square fixing block 13 is fixedly connected to the rear side of the upper part of the main body block 11. A circular sliding groove 18 extending to the inner wall of the main body block 11 is opened on the upper part of the square fixing block 13. Square sliding grooves 19 are opened on both the left and right sides of the circular sliding groove 18. Fixing blocks 14 are fixedly connected to the upper and lower right outer walls of the opposite side of the main body block 11 and the main body block 2 12. Fixing blocks 25 are fixedly connected to the upper and lower right outer walls of the opposite side of the main body block 2 12 and the main body block 11. The two fixing blocks 25 are positioned on the opposite side of the two fixing blocks 14 and are in close contact with them. 4. T-shaped cylinders 16 are slidably connected to the inner wall of the fixed block 15. Rotating components 17 are fixedly connected to the upper and lower outer walls on the left side of the opposite faces of the main body block 11 and the main body block 2 12. Circular holes 113 are opened on the lower side of the side of the main body block 11 that is far from the main body block 2 12. Square grooves 112 penetrating the inside and outside are opened on the left and right sides of the inner wall of the circular holes 113. Circular rotating holes 114 penetrating the left and right sides to the outside are opened on the inner wall of the side of the main body block 11 that is close to the main body block 2 12. The rotating component 17 includes several circular rotating columns 171. Fixed plates 172 are fixedly connected to the opposite sides of two adjacent circular rotating columns 171. A T-shaped circular block 173 is fixedly connected above 71. The outer wall of the T-shaped circular block 173 is rotatably connected to the inner wall of the two adjacent upper circular rotating columns 171. The right sides of the left and right fixed plates 172 are fixedly connected to the left sides of the main body block 11 and the main body block 22. The fixed support plate 2 includes two rectangular support blocks 21. A square block 22 is fixedly connected to the opposite face of the two rectangular support blocks 21. A screw 23 is rotatably connected to the inner wall of the square block 22. A nut 24 is threadedly connected to the outer wall of the left side of the screw 23. The outer wall of the square block 22 is inserted into the inner wall of the square groove 112. The outer wall of the screw 23 is movably connected to the inner wall of the circular hole 113. The foot pedal mechanism 3 includes a circular rotating wheel 31. 1. Two square blocks 32 are fixedly connected to both sides. Two square blocks 32 are provided with square grooves 33 on their opposite sides. Two circular holes 34 are provided on the front and back sides of the inner wall of the square grooves 33. Two square blocks 35 are inserted into the inner wall of the square grooves 33. Two screws 36 are rotatably connected to the inner wall of the square blocks 35. Two nuts 37 are threadedly connected to the outer wall of the screws 36. The outer wall of the screws 36 is movably connected to the inner wall of the circular holes 34. Two foot pedals 38 are fixedly connected to the opposite sides of the two square blocks 35. Two foot pedals 39 are fixedly connected to the opposite sides of the two foot pedals 38. The outer wall of the circular rotating wheel 31 is rotatably connected to the inner wall of the circular rotating hole 114.

[0030] The main body 1 of the exercise bike can be folded. To use it, first slide the T-shaped cylinder 16 out from the fixing block 14 and fixing block 25. Then, after turning the nut 24 to disengage it from the screw 23, remove the screw 23. Next, pull the square block 22 out from the circular hole 113, and disassemble the rectangular support block 21 and the square block 22. After turning the nut 27 to disengage it from the screw 26, pull the screw 26 out from the circular hole 24, and pull the square block 35 out from the square slot 23 to disassemble the pedal bar 38 and the pedal 39. Finally, rotate the main body block 11 and main body block 22 through the T-shaped cylinder 173 and the upper circular rotating column 171 to fold the bike. The foldable structure allows the main body of the exercise bike 1 to be folded into a compact shape when not in use, greatly reducing the space occupied. The foldable structure makes the main body of the exercise bike 1 smaller in size after folding, making it easy to carry and move. Users can easily move the exercise bike to different locations such as the living room, bedroom, and balcony as needed, and can even take it outdoors or for travel, increasing the flexibility and convenience of use. In addition, even if traditional exercise bikes are foldable, their pedals and fixing bars are usually not detachable, and they still have a large volume and irregular shape after folding. The detachable fixing support plate 2 and pedal mechanism 3 can further reduce the volume of the exercise bike main body 1 after folding, improve space utilization, and make the various parts of the exercise bike main body 1 lighter after disassembly.

[0031] like Figure 7 As shown, this utility model provides a technical solution: the hand grip support mechanism 4 includes an arc-shaped fixing block 41, a square support rod 42 is fixedly connected above the arc-shaped fixing block 41, a display screen 43 is fixedly connected above the square support rod 42, a diagonal brace 44 is fixedly connected to the upper rear side of the square support rod 42, a handle 45 is fixedly connected to the rear of the diagonal brace 44, and the lower part of the arc-shaped fixing block 41 is fixedly connected to the upper part of the main body block 12.

[0032] like Figure 8 The present invention provides a technical solution: the seat mechanism 5 includes a cylinder 51, a seat 53 is fixedly connected to the top of the cylinder 51, square sliding blocks 52 are fixedly connected to the left and right sides of the cylinder 51, a threaded groove 54 is provided below the cylinder 51, the outer walls of the cylinder 51 and the square sliding blocks 52 are slidably connected to the inner walls of the circular sliding groove 18 and the square sliding groove 19, the lifting mechanism 6 includes a threaded rod 62, a motor 61 is fixedly connected to the output end of the threaded rod 62, the outer wall of the motor 61 is threadedly connected to the inner wall of the threaded groove 54, and the outer wall of the threaded rod 62 is fixedly connected to the inner wall of the main block 11.

[0033] The seat mechanism 5 and the lifting mechanism 6 can be raised and lowered. In use, the output end of the threaded rod 62 drives the motor 61 to rotate, so that it rotates with the threaded groove 54. After the cylinder 51 and the square sliding block 52 slide with the circular sliding groove 18 and the square sliding groove 19, the seat 53 can be raised and lowered to adjust the height. The lifting function of the seat mechanism 5 can be flexibly adjusted according to the user's height, leg length and other individual differences, to ensure that the user's legs can be naturally extended when riding and both feet can step on the pedals stably, to achieve the best exercise posture and improve the comfort and effect of exercise.

[0034] The working principle of this multi-functional folding exercise bike is explained in detail below: The main body 1 of the exercise bike can be folded. When in use, first slide the T-shaped cylinder 16 out from the fixing block 14 and fixing block 25. After turning the nut 24 to disengage it from the screw 23, remove the screw 23. Then, pull the square block 22 out from the circular hole 113 and disassemble the rectangular support block 21 and the square block 22. After turning the nut 27 to disengage it from the screw 26, pull the screw 26 out from the circular hole 24 and pull the square block 35 out from the square slot 23 to disassemble the pedal bar 38 and the pedal 39. Finally, connect the main body block 11 and main body block 22 via the T-shaped circular block 173 and the upper circular rotating block. After the column 171 rotates, it folds. The foldable structure allows the main body 1 of the exercise bike to be folded into a compact shape when not in use, greatly reducing the space occupied. The foldable structure makes the main body 1 of the exercise bike smaller in size after folding, making it easy to carry and move. Users can easily move the exercise bike to different locations such as the living room, bedroom, and balcony as needed, and can even take it outdoors or for travel, increasing the flexibility and convenience of use. In addition, even if traditional exercise bikes are foldable, their pedals and fixed bars are usually not detachable, and they still have a large volume and irregular shape after folding. The detachable fixed support plate 2 and pedal mechanism 3 can further reduce the volume of the main body 1 of the exercise bike after folding, improving the space utilization rate. The disassembled parts of the main body 1 of the exercise bike are also lighter.

[0035] The seat mechanism 5 and the lifting mechanism 6 can be raised and lowered. In use, the output end of the threaded rod 62 drives the motor 61 to rotate, so that it rotates with the threaded groove 54. After the cylinder 51 and the square sliding block 52 slide with the circular sliding groove 18 and the square sliding groove 19, the seat 53 can be raised and lowered to adjust the height. The lifting function of the seat mechanism 5 can be flexibly adjusted according to the user's height, leg length and other individual differences, to ensure that the user's legs can be naturally extended when riding and both feet can step on the pedals stably, to achieve the best exercise posture and improve the comfort and effect of exercise.

[0036] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A multi-functional folding exercise bike, comprising an exercise bike body (1), characterized in that: The exercise bike body (1) is fixedly connected to the upper front of a hand grip support mechanism (4). The exercise bike body (1) is provided with fixed support plates (2) on the lower front and rear inner walls. The exercise bike body (1) is slidably connected to the upper rear inner wall of a seat mechanism (5). The lower inner wall of the seat mechanism (5) is threadedly connected to a lifting mechanism (6). The exercise bike body (1) is rotatably connected to a foot pedal mechanism (3) at the middle position of the rear of the inner wall of the exercise bike body (1). The lifting mechanism (6) is located in the inner wall of the exercise bike body (1). The exercise bike body (1) includes a main body block one (11) and a main body block two (12). A square fixing block (13) is fixedly connected to the upper rear side of the main body block one (11). A circular sliding groove (18) penetrating to the inner wall of the main body block one (11) is opened on the upper side of the square fixing block (13). Square sliding grooves (19) are opened on both the left and right sides of the circular sliding groove (18). Fixing blocks (14) are fixedly connected to the upper and lower right outer walls of the opposite side of the main body block one (11) and the main body block two (12). Fixing blocks (15) are fixedly connected to the upper and lower right outer walls of the opposite side of the main body block two (12) and the main body block one (11). The two fixing blocks (14) are fixedly connected to the upper and lower right outer walls of the opposite side of the main body block two (12) and the main body block one (11). 5) The position is placed close to the opposite face of the two fixed blocks (14). The inner walls of the fixed blocks (14) and the second fixed block (15) are slidably connected with T-shaped cylinders (16). The upper and lower outer walls of the opposite face of the main body block (11) and the second main body block (12) are fixedly connected with rotating components (17). The side of the main body block (11) and the side of the main body block (12) that are far apart are provided with circular holes (113). The inner walls of the circular holes (113) are provided with square grooves (112) that pass through the inside and outside. The inner wall of the main body block (11) that is close to the second main body block (12) is provided with a circular rotating hole (114) that passes through the left and right sides to the outside. The rotating assembly (17) includes several circular rotating columns (171). Each of the two adjacent circular rotating columns (171) has a fixed plate (172) fixedly connected to its opposite side. Each of the two adjacent lower circular rotating columns (171) has a T-shaped circular block (173) fixedly connected above it. The outer wall of the T-shaped circular block (173) is rotatably connected to the inner wall of the two adjacent upper circular rotating columns (171). The right side of the fixed plate (172) on both sides is fixedly connected to the left side of the main body block one (11) and the main body block two (12).

2. The multi-functional folding exercise bike according to claim 1, characterized in that: The fixed support plate (2) includes two rectangular support blocks (21). A square block (22) is fixedly connected to the opposite face of the two rectangular support blocks (21). A screw (23) is rotatably connected to the inner wall of the square block (22). A nut (24) is threadedly connected to the outer left side of the screw (23). The outer wall of the square block (22) is inserted into the inner wall of the square groove (112). The outer wall of the screw (23) is movably connected to the inner wall of the circular hole (113).

3. The multi-functional folding exercise bike according to claim 1, characterized in that: The foot pedal mechanism (3) includes a circular rotating wheel (31), and square blocks (32) are fixedly connected to the left and right sides of the circular rotating wheel (31). Square grooves (33) are opened on the opposite sides of the two square blocks (32). Circular holes (34) that pass through the inside and outside are opened on the front and back sides of the inner wall of the square grooves (33). A square block (35) is inserted into the inner wall of the square grooves (33). A screw (36) is rotatably connected to the inner wall of the square blocks (35). A nut (37) is threadedly connected to the outer wall of the screw (36). The outer wall of the screw (36) is movably connected to the inner wall of the circular hole (34). Foot pedal rods (38) are fixedly connected to the opposite sides of the two square blocks (35). Foot pedals (39) are fixedly connected to the opposite sides of the two foot pedal rods (38). The outer wall of the circular rotating wheel (31) is rotatably connected to the inner wall of the circular rotating hole (114).

4. The multi-functional folding exercise bike according to claim 1, characterized in that: The hand grip support mechanism (4) includes an arc-shaped fixing block (41), a square support rod (42) is fixedly connected above the arc-shaped fixing block (41), a display screen (43) is fixedly connected above the square support rod (42), a diagonal brace (44) is fixedly connected to the upper rear side of the square support rod (42), a handle (45) is fixedly connected to the rear of the diagonal brace (44), and the arc-shaped fixing block (41) is fixedly connected to the upper part of the main body block two (12) below.

5. A multi-functional folding exercise bike according to claim 1, characterized in that: The seat mechanism (5) includes a cylinder (51), a seat (53) is fixedly connected to the top of the cylinder (51), square sliding blocks (52) are fixedly connected to the left and right sides of the cylinder (51), and a threaded groove (54) is provided below the cylinder (51). The outer walls of the cylinder (51) and the square sliding blocks (52) are slidably connected to the inner walls of the circular sliding groove (18) and the square sliding groove (19).

6. A multi-functional folding exercise bike according to claim 5, characterized in that: The lifting mechanism (6) includes a threaded rod (62), the output end of which is fixedly connected to a motor (61). The outer wall of the motor (61) is threadedly connected to the inner wall of the threaded groove (54), and the outer wall of the threaded rod (62) is fixedly connected to the inner wall of the main block (11).

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