A multifunctional exercise bicycle

Abstract

The utility model discloses a multifunctional exercise bicycle, including host computer subassembly and base subassembly, and base subassembly includes the chassis, guide rail frame and adjusting support, and one end of guide rail frame is pivoted with the chassis, and the other end height -adjustably sets up on adjusting support, and guide rail frame is equipped with height adjusting assembly on adjusting support, and the folding assembly is arranged between chassis and host computer subassembly, and one end of folding assembly is pivoted with the chassis, and the other end is pivotted with host computer subassembly. The utility model discloses through height adjusting assembly can be free switching between horizontal state and different inclination state, can provide horizontal riding function for user, can provide climbing riding function again, so as to be convenient for letting user can select different riding mode at any time, satisfies the diversified fitness demand, and simultaneously still through folding assembly, it can realize the folding of guide rail frame when not using, greatly reduces the floor area of the utility model, improves the space utilization.

Description

Technical Field

[0001] This utility model relates to the field of sports and fitness equipment technology, and in particular to a multi-functional exercise bike. Background Technology

[0002] With the increasing awareness of health, fitness equipment is being used more and more widely in daily life. Elliptical exercise bikes, as a common type of aerobic fitness equipment, are favored by many fitness enthusiasts due to their advantages such as low risk of injury and good exercise effect. Currently, there are many types of elliptical exercise bikes on the market, but they all have certain limitations in their guide frame structure design. Traditional elliptical exercise bikes mostly have fixed guide frames, either only providing horizontal riding functionality or only providing climbing functionality at a single incline, without the flexibility to adjust to the user's needs. This makes it difficult for users to experience the training effects in different riding scenarios during exercise, failing to meet diverse fitness needs. Furthermore, while some elliptical exercise bikes do have some adjustment functions, they are often complex in structure, cumbersome to operate, and lack stability and reliability after adjustment. Additionally, when not in use, these exercise bikes take up a lot of space due to the guide frames being either non-foldable or inconvenient to fold, making storage difficult and causing considerable inconvenience for users. In view of this, the inventors of this case conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-functional exercise bike that can realize the functions of folding guide rail and adjusting guide rail slope in one, and has a simple structure, convenient operation and good stability.

[0004] To achieve the above objectives, this utility model adopts the following technical solution: A multi-functional exercise bike includes a main unit assembly and a base assembly disposed on one side of the main unit assembly. The base assembly includes a base frame, a guide rail frame disposed on the base frame, and an adjustment bracket. The adjustment bracket is disposed on the side of the base frame near the main unit assembly. One end of the guide rail frame is pivotally connected to the base frame, and the other end is height-adjustably disposed on the adjustment bracket. Height adjustment components are configured on the guide rail frame and the adjustment bracket to realize the slope adjustment between the guide rail frame and the base frame. A folding assembly is also provided between the base frame and the main unit. One end of the folding assembly is pivotally connected to the base frame, and the other end is pivotally connected to the main unit, so as to realize the folding and unfolding of the base frame and the main unit.

[0005] In a preferred embodiment of the present invention, the height adjustment component includes a first insertion hole disposed at one end of the guide rail frame, at least two second insertion holes disposed vertically on the adjustment bracket, and an elastic pin mechanism that engages with the first insertion hole. The elastic pin mechanism can selectively engage with at least two of the second insertion holes respectively through the first insertion hole.

[0006] In a preferred embodiment of this utility model, a crossbeam is provided at one end of the guide rail frame, the first insertion hole is provided on the crossbeam, and a fixed handle is provided on the crossbeam corresponding to the position of the first insertion hole. The elastic pin mechanism includes a first spring, a pressing handle, and a pin. The fixed handle is provided with a channel for the pressing handle to be inserted. One end of the pressing handle is pivotally connected to the pin, and the middle part is pivotally connected to the fixed handle. One end of the first spring is connected to the fixed handle, and the other end is connected to the end of the pin and the pressing handle that are pivotally connected, so that when the pressing handle is released, the pin is fixedly installed in the corresponding second insertion hole by the elastic force of the first spring.

[0007] In a preferred embodiment of the present invention, the pressing handle includes a pivot section pivotally connected to the pin, a movable section movably embedded in the channel, and a connecting section connecting the pivot section and the movable section. The connecting section is pivotally connected to the fixed handle near the pivot section, and the connecting section is L-shaped.

[0008] In a preferred embodiment of the present invention, the folding assembly includes a first upright beam disposed on the base frame, a second upright beam disposed on the main unit assembly, a pivoting mechanism disposed between the first upright beam and the second upright beam, and a folding pneumatic rod disposed between the first upright beam and the bottom of the base frame, so as to drive the folding and unfolding of the base assembly and the main unit assembly by extending and retracting the folding pneumatic rod.

[0009] In a preferred embodiment of this utility model, the pivoting mechanism includes a fixing member and a rotating member. One end of the fixing member is connected to the first upright beam, and the other end is connected to the rotating member. The rotating member rotates with the second upright beam via a first pin. A second pin is also provided on the second upright beam. The rotating member is provided with a sliding groove for the second pin to slide. The sliding groove has a first positioning point for the second pin to move to a folded position between the main unit assembly and the base assembly, and a second positioning point for the pin to move to an unfolded position between the main unit assembly and the base assembly.

[0010] In a preferred embodiment of this utility model, the folding assembly further includes a positioning mechanism for positioning the second pin shaft fixed at the first positioning point or the second positioning point. The positioning mechanism includes a positioning folding hook, a folding fixing pin, a folding sleeve, and a folding pull line disposed inside the folding sleeve, with one end connected to the folding hook and the other end connected to the folding fixing pin. The folding sleeve is sleeved on the outside of the folding pull line to form a pipe. The folding hook is disposed at the end of the base assembly away from the main unit assembly. The main unit assembly is provided with a positioning fixing member. One end of the folding sleeve is fixedly connected to the base assembly, and the other end is fixedly connected to the positioning fixing member. One end of the folding pull line is fixedly connected to the folding hook, and the other end passes through the positioning fixing member and is connected to the folding fixing pin. The folding pull line is movably disposed inside the folding sleeve.

[0011] In a preferred embodiment of the present invention, the folding assembly further includes a first positioning hole disposed on the rotating member and relative to the first positioning point and a second positioning hole disposed on the rotating member and relative to the second positioning point. The folding fixing pin can selectively cooperate with the first positioning hole or the second positioning hole to realize the positioning of the folding fixing pin in the first positioning hole or the second positioning hole by pulling the folding hook to drive the folding pull line.

[0012] In a preferred embodiment of this utility model, the main unit includes a frame, a damping mechanism disposed on the frame, and two rocking mechanisms disposed between the frame and the damping mechanism. The two rocking mechanisms are disposed on both sides of the damping mechanism. Each rocking mechanism includes a rocker arm, a foot pedal link, a linkage rod, and a pulley. The middle part of the rocker arm is pivotally connected to the frame. The front end of the foot pedal link is pivotally connected to the lower end of the rocker arm. The rear end of the foot pedal link is pivotally connected to the middle part of the linkage rod. The front end of the linkage rod is pivotally connected to the damping mechanism. The pulley is mounted on the rear end of the linkage rod and is slidably disposed on the guide rail frame.

[0013] In a preferred embodiment of this utility model, a handle is provided at the end of the guide rail frame away from the main unit; foot pads are provided at the bottom of both the main unit and the base assembly, and rollers are also provided at the bottom of the main unit.

[0014] By adopting the aforementioned design scheme, the beneficial effects of this utility model are as follows: The height adjustment component allows for free switching between horizontal and various tilted states, providing users with both horizontal and hill-climbing riding capabilities. This allows users to choose different riding modes according to their exercise goals, physical condition, and preferences, enriching the exercise experience, meeting diverse fitness needs, and enhancing the product's competitiveness. Furthermore, the folding component enables the guide rail frame to be folded when not in use, significantly reducing the footprint of this utility model. This facilitates storage and organization in various locations such as homes and gyms, improving space utilization and bringing great convenience to users. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention in its unfolded state; Figure 2 This is an exploded view of the present invention; Figure 3 This is a schematic diagram of the horizontal guide rail frame of this utility model; Figure 4 This is a schematic diagram of the guide rail frame of this utility model with a certain slope. Figure 5 This is a schematic diagram of the structure of the present invention in its folded state; In the diagram: Main unit 1, frame 11, damping mechanism 12, rocker mechanism 13, rocker arm 131, foot pedal linkage 132, linkage rod 133, pulley 134, handle 14, foot pad 15, roller 16, base assembly 2, base frame 21, guide rail frame 22, guide rail pivot 221, crossbeam 222, fixed handle 223, channel 2231, adjusting bracket 23, height adjusting assembly 3, first socket 31, sleeve 311, second socket 32, elastic pin mechanism 33, first spring 331, pressing handle 332, pivot section 33 21. Movable section 3322, Connecting section 3323, Pin 333, First pin 3331, Second pin 3332, Folding assembly 4, First upright beam 41, Second upright beam 42, First pin 421, Second pin 422, Pivot mechanism 43, Fixing component 431, Rotating component 432, Slide groove 4321, Folding gas spring 44, Positioning mechanism 45, Positioning folding hook 451, Folding fixing pin 452, Folding sleeve 453, Folding pull line 454, Second spring 455, First positioning hole 46, Second positioning hole 47. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figures 1 to 5 : A multi-functional exercise bike includes a main unit component 1 and a base component 2 disposed on one side of the main unit component 1. For ease of description, the orientation of the main unit component 1 is defined as left, and the orientation of the base component 2 is defined as right. The main unit component 1, as the core component of the entire exercise bike, provides the necessary power support and control functions for the riding process, ensuring that the user can ride smoothly and safely.

[0018] The base assembly 2 includes a base frame 21, a guide rail frame 22 mounted on the base frame 21, and an adjusting bracket 23. Preferably, a first upright beam 41 (described in detail below) is also provided on the left side of the base frame 21, and the adjusting bracket 23 is fixedly mounted on the first upright beam 41.

[0019] The right end of the guide rail frame 22 is pivotally connected to the right end of the base frame 21 via a guide rail pivot 221, while the left end of the guide rail frame 22 is height-adjustably mounted on the adjustable bracket 23. The guide rail frame 22 is movably connected to the base frame 21 via the guide rail pivot 221, allowing for flexible adjustment of its position, including both horizontal and tilt angles. When the guide rail frame 22 is horizontal, the exercise bike provides a level riding experience, similar to riding on flat ground, suitable for steady, sustained cycling, which helps improve cardiovascular function and lower limb endurance. When the guide rail frame 22 is tilted, it provides an uphill riding experience. In this position, the user needs to overcome greater resistance, more effectively strengthening leg muscles, increasing the challenge and intensity of the workout, and meeting the diverse needs of different users for optimal exercise results. Specifically, the guide rail 22 and the adjusting bracket 23 are equipped with height adjustment components 3 to realize the slope adjustment between the guide rail 22 and the base frame 21. Different slopes meet the different needs of users, such as including but not limited to elliptical machine mode, exercise bike mode and stair climber mode, which greatly expands the function of the product and improves the competitiveness of the product.

[0020] In a preferred embodiment of this utility model, to ensure the stability and reliability of the guide rail frame 22 at different angles, an elastic pin mechanism 33 (described in detail below) is provided on the guide rail frame 22 and the base frame 21 to limit the guide rail frame 22 at different angles. This elastic pin mechanism 33 can precisely fix the guide rail frame 22 at a set angle, preventing accidental movement or angle changes during riding, thus ensuring the user's riding safety and experience.

[0021] The height adjustment component 3 includes a first socket 31 located on the left side of the guide rail 22, at least two second sockets 32 vertically arranged on the adjustment bracket 23, and an elastic pin mechanism 33 that engages with the first socket 31. The elastic pin mechanism 33 can selectively engage with at least two of the second sockets 32 through the first socket 31. It is worth noting that in this embodiment, there may be three second sockets 32, arranged vertically from bottom to top on the adjustment bracket 23, which can respectively form elliptical machine mode, dynamic bike mode, and stair climber mode with different inclines. Of course, it is not limited to the above three levels, and the specific settings can be set according to the actual situation.

[0022] Specifically, a crossbeam 222 is provided at one end of the guide rail frame 22, a first insertion hole 31 is provided on the crossbeam 222, and a sleeve 311 is provided inside the first insertion hole 31. The sleeve 311 is hollow, and the diameter of the opening on the left side is larger than that of the opening on the right side. A fixed handle 223 is provided on the crossbeam 222 corresponding to the position of the first insertion hole 31. A channel 2231 is provided on the fixed handle 223 for the pressing handle 332 (which will be described in detail below) to be inserted.

[0023] The resilient pin mechanism 33 includes a first spring 331, a pressing handle 332, and a pin 333. The first spring 331 passes through the outside of the pin 333 and is disposed inside the sleeve 311. Specifically, the pin 333 includes a first pin 3331 and a second pin 3332 connected to each other. The diameter of the first pin 3331 is larger than the diameter of the second pin 3332. The first pin 3331 is disposed on the left side of the sleeve 311, and the second pin 3332 is disposed on the right side of the sleeve 311. The opening diameter on the left side of the sleeve 311 is approximately equal to the diameter of the first pin 3331, and the opening diameter on the right side is approximately equal to the diameter of the second pin 3331. The inner diameter of the sleeve 311 is the same as the opening diameter on the left side of the sleeve 311. That is, when the pin 333 is inserted into the sleeve 311, a gap is formed between the opening wall on the right side of the sleeve 311 and the first pin 3331. The first spring 331 is placed in the accommodating space and is sleeved on the outside of the second pin 3331. When the left end of the first pin 3331 is fixedly set in the corresponding second socket 32, the elastic force of the first spring 331 is 0. When the user presses the pressing handle 332 upward to the right rear, the pin 333 moves to the right in the sleeve 311, and the first spring 331 is compressed. When the pressing handle 332 is released, according to the rebound force of the first spring 331, the pin 333 moves to the left in the sleeve 311, so that the first pin 3331 can be fixedly set in the corresponding second socket 32.

[0024] The left side of the pressing handle 332 is pivotally connected to the second pin 3332 via a screw, and the middle part is pivotally connected to the fixed handle 223 via a screw. The right side of the pressing handle 332 is movably disposed in the channel 2231 of the pressing handle 332, so that when the pressing handle 332 is released, the elastic force of the first spring 331 drives the pin 333 to move from the first socket 31 to the second socket 32 ​​and fix it in the corresponding second socket 32. It is worth noting that in this embodiment, the first spring 331 can also be configured such that one end of the first spring 331 is connected to the fixed handle 223, and the other end is connected to the end of the pin 333 and the pressing handle 332 that is pivotally connected. Of course, it is not limited to this, and the configuration of the first spring 331 in this embodiment can be specifically configured according to the actual situation.

[0025] Specifically, the pressing handle 332 includes a pivot section 3321 pivotally connected to the second pin 3332, a movable section 3322 movably embedded in the channel 2231, and a connecting section 3323 connecting the pivot section 3321 and the movable section 3322. The connecting section 3323 is pivotally connected to the fixed handle 223 near the pivot section 3321. The connecting section 3323 is L-shaped so that human fingers can hold and press it.

[0026] In use, hold the fixed handle 223 for positioning and support, and use your index finger to grip the pressing handle 332, causing the pressing handle 332 to rotate around the screw pivotally connected to the fixed handle 223. The rotation of the pressing handle 332 drives the pin 333 to move, and the first pin 331 moves to the right until it leaves the corresponding second socket 32. At this time, the fixed handle 223 can be lifted, and the entire guide rail frame 22 can be pulled up by the fixed handle 223 and switched to the corresponding other second socket 32. Then, after the user releases the pressing handle 332, the pin 332 moves towards the second socket 32 ​​under the action of the first spring 331, which is designed to meet the needs of users in different scenarios such as horizontal and uphill. By adjusting the pin 333 within different second sockets 32, one can simulate an elliptical trainer, a stationary bike, and a stair climber. Family members of different ages can choose different fitness intensities and modes to obtain a variety of fitness experiences. The adjustment method of the entire structure is simple and intuitive. Users can easily adjust the angle of the guide rail frame 22 without complicated operation steps. Whether switching to a horizontal riding mode or an uphill riding mode with different inclines, it can be done quickly, lowering the threshold for use and making it suitable for users of different ages and fitness levels.

[0027] In a preferred embodiment of the present invention, a folding component 4 is further provided between the base frame 21 and the main unit 1. One end of the folding component 4 is pivotally connected to the base frame 21, and the other end is pivotally connected to the main unit 1, so as to realize the folding and unfolding between the base frame 21 and the main unit 1.

[0028] Specifically, the folding assembly 4 includes a first upright beam 41 mounted on the base frame 21, a second upright beam 42 mounted on the main unit assembly 1, a pivot mechanism 43 mounted between the first upright beam 41 and the second upright beam 42, and a folding pneumatic rod 44 mounted between the first upright beam 41 and the bottom of the base frame 21, so as to drive the folding and unfolding of the base assembly 2 and the main unit assembly 1 by extending and retracting the folding pneumatic rod 44.

[0029] Specifically, the pivoting mechanism 43 includes a fixing member 431 and a rotating member 432. One end of the fixing member 431 is connected to the first upright beam 41, and the other end is connected to the rotating member 432. The rotating member 432 is rotatably connected to the second upright beam 42 via a first pin 421. The second upright beam 42 is also provided with a second pin 422. The rotating member 432 is provided with a slide groove 4321 for the second pin 422 to slide. The slide groove 4321 has a first positioning point for the second pin 422 to move to the main unit assembly 1 and the base assembly 2 in a folded state and a second positioning point for the second pin 422 to move to the main unit assembly 1 and the base assembly 2 in an unfolded state.

[0030] Furthermore, the folding assembly 4 also includes a positioning mechanism 45 for positioning the second pin 422 to be fixed at the first positioning point or the second positioning point, a first positioning hole 46 disposed on the rotating member 432 and relative to the first positioning point, and a second positioning hole 47 disposed on the rotating member 432 and relative to the second positioning point. The positioning mechanism 45 can be selectively disposed in the first positioning hole 46 or the second positioning hole 47 to realize the folding and unfolding between the base assembly 2 and the main unit assembly 1.

[0031] Furthermore, the positioning mechanism 45 includes a positioning folding hook 451, a folding fixing pin 452, a folding sleeve 453, a folding pull line 454 disposed inside the folding sleeve 453 with one end connected to the folding hook 451 and the other end connected to the folding fixing pin 452, and a second spring 455 sleeved on the folding pull line and disposed in connection with the folding fixing pin 452 and the positioning fixing member (described in detail below). The folding sleeve 453 is sleeved on the outside of the folding pull line 454 to form a pipe. The folding hook 451 is disposed at the right end of the base assembly 2. The main unit assembly 1 is provided with a positioning fixing member (not shown in the figure). One end of the folding sleeve 453 is fixedly connected to the right end of the base assembly 2, and the other end is fixedly connected to the positioning fixing member. One end of the folding pull line 454 is fixedly connected to the folding hook 451, and the other end passes through the positioning fixing member and is connected to the folding fixing pin 452. The folding pull line 454 is movably disposed inside the folding sleeve 453.

[0032] The folding fixing pin 452 can selectively engage with either the first positioning hole 46 or the second positioning hole 47, so that pulling the folding hook 451 drives the folding cable 454 to position the folding fixing pin 452 in the first positioning hole 46 or the second positioning hole 47. In use, holding the folding hook 451, you can press the folding hook 451 upwards or downwards with your index finger, causing the folding hook 451 to rotate around the screw pivotally connected to the bottom beam 21. The rotation of the folding hook 451 causes the folding cable 454 to move to the right. At this time, the folding fixing pin 452 is pulled by the folding cable 454 and moves away from the first positioning hole 46 or the second positioning hole 47. At this time, the second spring 455 is compressed. Then, it can be lifted by the handle 14 (described in detail below). The entire base assembly 2 can be lifted or lowered by the handle 14 and switched to the corresponding other first positioning hole 46 or second positioning hole 47. After the user releases the folding hook 451, the folding fixing pin 452 moves towards the first positioning hole 46 or the second positioning hole 47 under the action of the second spring 455, and locks the exercise bike. This embodiment aims to meet the needs of users in different scenarios such as unfolding and folding. When not in use, it can realize the folding of the base assembly 2, which greatly reduces the footprint of the exercise bike and makes it easy to store and fold in different places such as home and gym, improving space utilization and bringing great convenience to users.

[0033] In a preferred embodiment of this utility model, the main unit 1 includes a frame 11, a damping mechanism 12 mounted on the frame 11, and two rocking mechanisms 13 mounted between the frame 11 and the damping mechanism 12. The two rocking mechanisms 13 are mounted on both sides of the damping mechanism 12. Each rocking mechanism 13 includes a rocker arm 131, a foot pedal connecting rod 132, a linkage rod 133, and a pulley 134. The middle part of the rocker arm 131 is pivotally connected to the frame 11. The front end of the foot pedal connecting rod 132 is pivotally connected to the lower end of the rocker arm 131. The rear end of the foot pedal connecting rod 132 is pivotally connected to the middle part of the linkage rod 133. The front end of the linkage rod 133 is pivotally connected to the damping mechanism 12. A pulley 134 is mounted on the rear end of the linkage rod 133. The pulley 134 is slidably mounted on the guide rail frame 22, thereby realizing that the linkage rod 133 and the foot pedal connecting rod 132 are connected as one unit and rotate relative to each other.

[0034] The rocking mechanism 13 is movably mounted on the guide rail frame 22 via a pulley 134. Preferably, the circumferential surface of the pulley 134 is concave.

[0035] As a preferred embodiment of the present invention, a handle 14 is provided at the end of the guide rail 22 away from the main unit 1. This design allows the handle 14 to be lifted when the base assembly 2 is folded / unfolded, and the entire base assembly 2 can be pulled up by the handle 14.

[0036] Both the main unit component 1 and the base component 2 are equipped with foot pads 15 at the bottom, and the main unit component 1 is also equipped with casters 16 at the bottom.

[0037] In summary, this utility model not only enhances the functionality and flexibility of the exercise bike, but also has significant advantages in structural stability, ease of operation, and space utilization, thus possessing high practical value and broad market application prospects.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional exercise bike, characterized in that: The device includes a main unit and a base assembly disposed on one side of the main unit. The base assembly includes a base frame, a guide rail mounted on the base frame, and an adjustment bracket. The adjustment bracket is disposed on the side of the base frame closer to the main unit. One end of the guide rail is pivotally connected to the base frame, and the other end is height-adjustably mounted on the adjustment bracket. Height adjustment components are configured on the guide rail and the adjustment bracket to achieve slope adjustment between the guide rail and the base frame. A folding assembly is also provided between the base frame and the main unit. One end of the folding assembly is pivotally connected to the base frame, and the other end is pivotally connected to the main unit, so as to realize the folding and unfolding of the base frame and the main unit.

2. The multi-functional exercise bike according to claim 1, characterized in that: The height adjustment assembly includes a first socket at one end of the guide rail, at least two second sockets arranged vertically on the adjustment bracket, and an elastic pin mechanism that engages with the first socket. The elastic pin mechanism can selectively engage with at least two of the second sockets respectively through the first socket.

3. A multi-functional exercise bike according to claim 2, characterized in that: A crossbeam is provided at one end of the guide rail frame, and the first insertion hole is provided on the crossbeam. A fixed handle is provided on the crossbeam corresponding to the position of the first insertion hole. The elastic pin mechanism includes a first spring, a pressing handle, and a pin. The fixed handle is provided with a channel for the pressing handle to be inserted. One end of the pressing handle is pivotally connected to the pin, and the middle part is pivotally connected to the fixed handle. One end of the first spring is connected to the fixed handle, and the other end is connected to the end of the pin and the pressing handle that are pivotally connected, so that when the pressing handle is released, the pin is fixedly installed in the corresponding second insertion hole by the elastic force of the first spring.

4. A multi-functional exercise bike according to claim 3, characterized in that: The pressing handle includes a pivot section pivotally connected to the pin, a movable section movably embedded in the channel, and a connecting section connecting the pivot section and the movable section. The connecting section is pivotally connected to the fixed handle near the pivot section, and the connecting section is L-shaped.

5. A multi-functional exercise bike according to claim 1, characterized in that: The folding assembly includes a first upright beam disposed on the base frame, a second upright beam disposed on the main unit assembly, a pivoting mechanism disposed between the first upright beam and the second upright beam, and a folding pneumatic rod disposed between the first upright beam and the bottom of the base frame, so as to drive the folding and unfolding of the base assembly and the main unit assembly by extending and retracting the folding pneumatic rod.

6. A multi-functional exercise bike according to claim 5, characterized in that: The pivoting mechanism includes a fixing member and a rotating member. One end of the fixing member is connected to the first upright beam, and the other end is connected to the rotating member. The rotating member rotates with the second upright beam via a first pin. A second pin is also provided on the second upright beam. The rotating member is provided with a sliding groove for the second pin to slide. The sliding groove has a first positioning point for the second pin to move to a folded position between the main unit assembly and the base assembly, and a second positioning point for the pin to move to an unfolded position between the main unit assembly and the base assembly.

7. A multi-functional exercise bike according to claim 6, characterized in that: The folding assembly further includes a positioning mechanism for positioning the second pin fixed at the first positioning point or the second positioning point. The positioning mechanism includes a positioning folding hook, a folding fixing pin, a folding sleeve, and a folding pull line disposed inside the folding sleeve, with one end connected to the folding hook and the other end connected to the folding fixing pin. The folding sleeve is sleeved around the outside of the folding pull line to form a pipe. The folding hook is disposed at the end of the base assembly away from the main unit assembly. The main unit assembly is provided with a positioning fixing member. One end of the folding sleeve is fixedly connected to the base assembly, and the other end is fixedly connected to the positioning fixing member. One end of the folding pull line is fixedly connected to the folding hook, and the other end passes through the positioning fixing member and is connected to the folding fixing pin. The folding pull line is movably disposed inside the folding sleeve.

8. A multi-functional exercise bike according to claim 7, characterized in that: The folding assembly further includes a first positioning hole disposed on the rotating member and relative to the first positioning point and a second positioning hole disposed on the rotating member and relative to the second positioning point. The folding fixing pin can selectively cooperate with the first positioning hole or the second positioning hole to realize the positioning of the folding fixing pin in the first positioning hole or the second positioning hole by pulling the folding hook to drive the folding pull line.

9. A multi-functional exercise bike according to claim 1, characterized in that: The main unit includes a frame, a damping mechanism mounted on the frame, and two rocking mechanisms disposed between the frame and the damping mechanism. The two rocking mechanisms are located on both sides of the damping mechanism. Each rocking mechanism includes a rocker arm, a foot pedal link, a linkage rod, and a pulley. The middle part of the rocker arm is pivotally connected to the frame. The front end of the foot pedal link is pivotally connected to the lower end of the rocker arm. The rear end of the foot pedal link is pivotally connected to the middle part of the linkage rod. The front end of the linkage rod is pivotally connected to the damping mechanism. The pulley is mounted on the rear end of the linkage rod and is slidably mounted on the guide rail frame.

10. A multi-functional exercise bike according to claim 1, characterized in that: A handle is provided at the end of the guide rail that is away from the main unit; Both the main unit and the base unit are provided with foot pads at their bottoms, and the main unit is also provided with casters at its bottom.

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