Dual-purpose exercise bicycle

Abstract

The utility model discloses a dual-purpose exercise bicycle which comprises a bicycle frame and a pedal mechanism, a cushion is installed on the rear portion of the bicycle frame, the pedal mechanism comprises pedals which are arranged on the two sides of the rear portion of the bicycle frame and can do circle drawing motion around a shaft, swing handrails are arranged on the two sides of the front portion of the bicycle frame, and the middles of the swing handrails are hinged to the bicycle frame. The pedals are in linkage fit with the swing armrests on the same side through transmission connecting rods, the transmission connecting rods comprise rear connecting rods hinged to the pedals and front connecting rods hinged to the lower portions of the swing armrests, the rear connecting rods are detachably connected with the front connecting rods, and connecting parts detachably connected with the front connecting rods are arranged on the frame. When the functions are switched, the front connecting rod is separated from the rear connecting rod, and the front connecting rod is connected with the connecting part so as to limit the swing handrail to rotate relative to the frame, so that switching of two modes of an exercise bicycle and an elliptical machine can be achieved, and the swing handrail can be driven by the transmission connecting rod to swing back and forth relative to the frame when the elliptical machine functions. And when the exercise bicycle is used, the frame is relatively fixed.

Description

Technical Field

[0001] The utility model relates to a fitness device, in particular to a dual-purpose exercise bike. Background Art

[0002] With the acceleration of the life rhythm, people's physical fitness has been greatly reduced, and the awareness of exercising has gradually increased. People often choose to go to the gym or buy fitness equipment at home for fitness, such as exercise bikes and elliptical machines. An exercise bike imitates a bicycle for people to exercise in place, so as to achieve the purpose of competition or fitness. An exercise bike generally includes a vehicle body, a pedal mechanism and a damping wheel. The vehicle body has a fixed handle. When in use, people hold the handle and drive the damping wheel to rotate by stepping on the pedals of the pedal mechanism, so as to exercise the legs; an elliptical machine moves the upper and lower limbs at the same time, and the pedals and the handrails are linked by a linkage mechanism, so that the hands and feet move at the same time. Users drive the hands to swing back and forth by alternately stepping on the pedals, so as to achieve the purpose of simulating walking.

[0003] Currently, in order to increase the functionality of fitness equipment, an exercise bike and an elliptical machine are combined on one device to realize the functions of both an exercise bike and an elliptical machine through one fitness device. For example, an elliptical machine disclosed in Chinese Utility Model Patent CN211486371U includes a frame, a flywheel main body, a handrail unit, a pedal unit and a seat; the frame is connected to the handrail unit and the pedal unit through connecting pieces, the flywheel main body is fixed on the frame, the seat is installed on the flywheel main body, the frame is connected to the handrail unit and the pedal unit through connecting pieces, one end of the pedal unit is pivotally connected to the handrail unit, and the other end of the pedal unit can be inserted and matched with the footrest on the flywheel main body. The pedal unit includes a pedal main body, a swing arm and a second elastic positioning pin. The upper end of the swing arm is fixed in the connecting piece, the lower end of the swing arm is pivotally connected to the adjusting block of the pedal main body, a first through hole for inserting the second elastic positioning pin is provided on the swing arm, and a first positioning hole for positioning the pedal main body is provided on the adjusting block. When converting the function, pull out the second elastic positioning pin and lift the pedal main body for folding. When the first through hole and the first positioning hole are aligned, release the second elastic positioning pin, and under the action of the return spring force, the second elastic positioning pin passes through the first through hole and inserts into the first positioning hole, so as to fold and fix the pedal main body on the swing arm, converting the function of the elliptical machine into the function of an exercise bike.

[0004] In the structure of the elliptical machine disclosed in the existing patent, after the pedal main body is folded and converted into the function of an exercise bike, the handrail unit can still rotate relative to the frame. Therefore, the handrail unit cannot be used for hand support after being converted into the function of an exercise bike, and fixed handrails need to be additionally provided on the frame for hand support, increasing the components on the frame and raising the overall cost. Content of the Utility Model

[0005] Based on the problem that the above-mentioned armrest unit can still rotate relative to the frame after changing from the elliptical machine function to the exercise bike function and cannot be used for hand support during cycling, and an additional fixed armrest needs to be provided on the frame for hand support, which increases the cost of the whole vehicle, the utility model provides a dual-purpose exercise bike.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows: a dual-purpose exercise bike, including a frame and a pedal mechanism. A seat is installed on the rear part of the frame. The pedal mechanism includes pedals arranged on both sides of the rear part of the frame and capable of making a circular motion around an axis. Swing armrests are provided on both sides of the front part of the frame. The middle part of the swing armrest is hinged to the frame. The pedals are linked and matched with the swing armrests on the same side through transmission connecting rods. The transmission connecting rod includes a rear connecting rod hinged to the pedal and a front connecting rod hinged to the lower part of the swing armrest. The rear connecting rod and the front connecting rod are detachably connected. A connecting part capable of being detachably connected to the front connecting rod is provided on the frame. When the function is switched, the front connecting rod and the rear connecting rod are separated, and the front connecting rod is connected to the connecting part to limit the swing armrest from rotating relative to the frame.

[0007] A further preferred technical solution of the utility model is: a limiting groove is provided on the front connecting rod / rear connecting rod, and the rear connecting rod / front connecting rod is slidably connected with the limiting groove to limit the front connecting rod and the rear connecting rod to move relatively in a straight line. A plurality of gear holes are provided on the rear connecting rod, and a connecting hole is provided on the front connecting rod. The connecting hole can be selectively opposed to one of the gear holes and connected by a screw to adjust the length of the transmission connecting rod between the pedal and the swing armrest.

[0008] A further preferred technical solution of the utility model is: the connecting part is a connecting rod fixing piece arranged on the frame. A connecting rod fixing hole corresponding to the connecting hole is provided on the connecting rod fixing piece. When the function is switched, the front connecting rod rotates to a position where the connecting hole is opposed to the connecting rod fixing hole and is connected by a screw.

[0009] A further preferred technical solution of the utility model is: an armrest rod arranged horizontally is provided on the front part of the frame. A sleeve is connected to the middle part of the swing armrest. The sleeve is sleeved on the armrest rod so that the swing armrest can swing back and forth around the armrest rod.

[0010] A further preferred technical solution of the utility model is: the pedal mechanism includes a transmission shaft and a crank. The transmission shaft is installed on the rear part of the frame. Both ends of the transmission shaft are respectively connected with cranks located on both sides of the frame. The pedals are connected to the cranks, and the pedals can make a circular motion around the transmission shaft.

[0011] A further preferred technical solution of the present utility model is as follows: A pedal shaft is connected to the pedal, and one end of the pedal shaft is connected to one end of the crank. One end of the rear connecting rod is sleeved on the pedal shaft and can rotate relative to the crank and the pedal. After the rear connecting rod and the front connecting rod are disassembled, the rear connecting rod can rotate to a position overlapping with the crank and is fixed by a fastening member.

[0012] A further preferred technical solution of the present utility model is as follows: The fastening member is a binding rope.

[0013] A further preferred technical solution of the present utility model is as follows: A number of gear holes are distributed in sequence along the length direction of the rear connecting rod. A limiting groove extending along the length direction is formed on the side surface of one end of the front connecting rod. A convex portion is provided at one end of the rear connecting rod, and the convex portion is inserted into the limiting groove and is in sliding fit with the limiting groove, so that the rear connecting rod can move back and forth parallel to the front connecting rod to switch the gear hole opposite to the connecting hole.

[0014] A further preferred technical solution of the present utility model is as follows: A rotating member is connected to the lower part of the swing armrest. One end of the front connecting rod is sleeved on the rotating member, and the front connecting rod is fixed by a nut screwed on the rotating member.

[0015] A further preferred technical solution of the present utility model is as follows: When the front connecting rod and the rear connecting rod are connected, they are connected end to end and are parallel to each other.

[0016] Compared with the prior art, the advantages of the present utility model are that the transmission connecting rod includes a rear connecting rod hinged to the pedal and a front connecting rod hinged to the lower part of the swing armrest. The rear connecting rod and the front connecting rod are detachably connected. A connecting portion detachably connected to the front connecting rod is provided on the frame. When the function is switched, the front connecting rod and the rear connecting rod are separated, and the front connecting rod is connected to the connecting portion to limit the relative rotation of the swing armrest with respect to the frame, so that the swing armrest can be driven by the transmission connecting rod to swing back and forth relative to the frame in the elliptical machine function, and the swing armrest can be relatively fixed to the frame in the exercise bike function for holding by hand during riding, without additionally providing a fixed armrest, improving the utilization rate of the swing armrest and thus reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present utility model will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present utility model. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 It is a schematic structural diagram of the present utility model in the elliptical machine mode;

[0019] Figure 2 Exploded view of the screw for connecting the front link and the rear link of the present utility model;

[0020] Figure 3 Rotational relationship diagram after the front link and the rear link of the present utility model are separated;

[0021] Figure 4 Schematic structural diagram of the present utility model when in the exercise bike mode;

[0022] Figure 5 Exploded view among the crank, the foot pedal, the front link, the rear link, and the swing armrest of the present utility model;

[0023] Figure 6 For Figure 5 Partial enlarged view of location A of

[0024] In the figure: 1, frame; 2, seat cushion; 3, swing armrest; 4, grip part; 5, sleeve; 6, linkage part; 7, armrest rod; 8, support seat; 9, transmission shaft; 10, crank; 11, foot pedal; 12, transmission link; 13, link fixing piece; 14, link fixing hole; 15, foot pedal shaft; 16, rear link; 17, screw; 18, flat washer; 19, front link; 20, nut; 21, threaded post; 22, limiting groove; 23, protruding part; 24, gear position hole; 25, connection hole; 26, socket block. Detailed implementation manners

[0025] The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary, and should not be construed as limiting the protection scope of the present utility model.

[0026] It should be noted that: Similar reference numerals denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it may not be further defined and explained in subsequent drawings.

[0027] Figures 1-6 As shown, the dual-purpose exercise bike can be switched between the elliptical machine mode and the exercise bike mode, and includes a frame 1 and a foot pedal mechanism. A seat cushion 2 is installed on the rear part of the frame 1 for the exerciser to sit on.

[0028] Figure 5 、 Figure 6 As shown, the foot pedal mechanism includes foot pedals 11 provided on both sides of the rear part of the frame 1 and capable of making a circular motion around an axis.

[0029] Preferably, the pedal mechanism includes a transmission shaft 9 and a crank 10. The transmission shaft 9 is installed on the rear part of the frame 1. One end of the transmission shaft 9 is respectively connected to one end of the crank 10 located on both sides of the frame 1, and the pedal 11 is connected to the other end of the crank 10, so that the pedal 11 can make a circular motion around the transmission shaft 9. Specifically, a pedal shaft 15 is connected to the pedal 11, and the pedal shaft 15 is connected to one end of the crank 10.

[0030] The structure of the pedal 11 is a conventional technical structure on existing fitness bikes. For example, the pedal 11 and the crank 10 disclosed in Patent CN117861160A. Or, for example, the pedal structure connected to the flywheel main body disclosed in CN211486371 U.

[0031] Figure 1 As shown, swing handrails 3 are provided on both sides of the front part of the frame 1, and the middle part of the swing handrail 3 is hinged to the frame 1.

[0032] Preferably, a horizontally arranged handrail rod 7 is provided on the front part of the frame 1. A sleeve 5 is connected to the middle part of the swing handrail 3, and the sleeve 5 is sleeved on the handrail rod 7 so that the swing handrail 3 can swing back and forth around the handrail rod 7.

[0033] Figure 1 As shown, the pedal 11 is linked and cooperated with the swing handrail 3 on the same side through a transmission connecting rod 12. The exerciser holds the upper part of the swing handrail 3 with both hands and alternately steps on the pedals 11 on both sides with both feet. The pedal 11 makes a circular motion around the transmission shaft 9. At the same time, the pedal 11 drives the swing handrail 3 to swing back and forth through the transmission connecting rod 12, realizing the back-and-forth swing of both hands and achieving the function of an elliptical machine.

[0034] The transmission connecting rod 12 includes a rear connecting rod 16 with one end hinged to the pedal 11 and a front connecting rod 19 with one end hinged to the lower part of the swing handrail 3. The rear connecting rod 16 and the front connecting rod 19 are detachably connected. A connecting part is provided on the frame 1 that can be detachably connected to the front connecting rod 19. When the function is switched, the front connecting rod 19 is separated from the rear connecting rod 16, and the front connecting rod 19 is connected to the connecting part to limit the relative rotation of the swing handrail 3 with respect to the frame 1.

[0035] There are various detachable connection methods between the front connecting rod 19 and the rear connecting rod 16. Existing conventional fixed connection methods are applicable to this patent. For example, fixed connection by screws, or tying the front connecting rod 19 and the rear connecting rod 16 together with a binding rope for fixation, or pin connection by passing a connecting pin through the front connecting rod 19 and the rear connecting rod 16, or fixing by a fastener after the front connecting rod 19 and the rear connecting rod 16 are sleeved.

[0036] There are various detachable connection methods between the front link 19 and the connecting part, and existing conventional fixed connection methods are all applicable to this patent. For example, it can be fixedly connected by screws, or the front link 19 and the connecting part can be tied together and fixed by a binding rope, or the front link 19 and the connecting part can be pinned by passing a connecting pin through them.

[0037] Figure 2 , Figure 3 As shown, preferably, when the front link 19 and the rear link 16 are connected, they are end-to-end and parallel to each other.

[0038] Preferably, the length of the transmission link 12 is adjustable. By adjusting the length of the transmission link 12, the setting angle of the swing armrest 3 provided at the front part of the vehicle frame 1 can be adjusted. When the length of the transmission link 12 becomes shorter, the upper part of the swing armrest 3 deflects forward; when the length of the transmission link 12 becomes longer, the upper part of the swing armrest 3 deflects backward.

[0039] Preferably, a limiting groove 22 is provided on the front link 19 / rear link 16, and the rear link 16 / front link 19 is slidably connected with the limiting groove 22 to limit the relative movement of the front link 19 and the rear link 16 in a straight line. A number of gear holes 24 are provided on the rear link 16, and a connecting hole 25 is provided on the front link 19. The connecting hole 25 can be selectively opposed to one of the gear holes 24 and connected by a screw 17 to adjust the length of the transmission link 12 between the footrest 11 and the swing armrest 3, and at the same time, the front link 19 and the rear link 16 are detachably connected.

[0040] Preferably, a number of gear holes 24 are provided at one end of the rear link 16 away from the hinge. The number of gear holes 24 is three, and the three gear holes 24 are distributed in sequence along the length direction of the rear link 16. The corresponding connecting hole 25 is provided at one end of the front link 19 away from the hinge. A limiting groove 22 extending along the length direction is formed on the side wall of one end of the front link 19 away from the hinge. A protruding part 23 corresponding to the limiting groove 22 is provided at one end of the rear link 16 away from the hinge. The protruding part 23 is inserted into the limiting groove 22 and slidably cooperates with the limiting groove 22, so that the rear link 16 can move back and forth relatively parallel to the front link 19 to switch the gear hole 24 opposite to the hole position of the connecting hole 25. Preferably, the width of the protruding part 23 is equal to the width of the limiting groove 22. The structure with the gear holes 24 provided on the front link 19 and the connecting holes 25 provided on the rear link 16 is equivalent to this patent, only the positions are exchanged.

[0041] When the front link 19 and the rear link 16 are connected with the cooperation of the protruding part 23 and the limiting groove 22, the front link 19 and the rear link 16 are always in a straight line, and when adjusting the length of the transmission link 12, there will be no mutual deflection between the front link 19 and the rear link 16.

[0042] Preferably, the connecting part is a connecting rod fixing plate 13 arranged on the frame 1, and a connecting rod fixing hole 14 corresponding to the connecting hole 25 is provided on the connecting rod fixing plate 13. When the function is switched, the front connecting rod 19 rotates to a position where the connecting hole 25 is opposite to the connecting rod fixing hole 14, and is connected by a screw 17.

[0043] The frame 1 includes support seats 8 at the bottom of the front and rear sides for support, and the connecting part is arranged on the support seat 8 at the front side.

[0044] Figure 1 As shown, the rear link 16 is bent outward to cause a slight elastic deformation of the rear link 16, and then the front link 19 is rotated to rotate the end of the front link 19 with the limiting groove 22 to overlap with the end of the rear link 16 with the protrusion 23. At this time, the protrusion 23 is opposite to the limiting groove 22, and the rear link 16 is released. The rear link 16 is elastically reset to insert the protrusion 23 into the limiting groove 22 on the front link 19 to form a limit. The rear link 16 moves forward and backward relative to the front link 19. The movement causes the connection portion on the front connecting rod 19 to move between the three shift holes 24, adjusting the overall length of the transmission connecting rod 12, thereby achieving the purpose of adjusting the angle of the swing armrest 3 set on the frame 1. After the swing armrest 3 is adjusted to a suitable angle, the connecting hole 25 is opposite to one of the shift holes 24, and the front connecting rod 19 and the rear connecting rod 16 are fixedly connected together by passing the screw 17 through the connecting hole 25 and the shift hole 24, so that the function of the fitness bike is converted into the function of the elliptical machine.

[0045] Figures 2-4 As shown, by removing the screw 17 connecting the front connecting rod 19 and the rear connecting rod 16, the end of the rear connecting rod 16 connected to the front connecting rod 19 is bent outward to make the rear connecting rod 16 elastically deform outward. At this time, the protrusion 23 at the end of the rear connecting rod 16 is disengaged from the limiting groove 22 on the front connecting rod 19, and the rear connecting rod 16 is rotated to separate the rear connecting rod 16 and the front connecting rod 19. The separated front connecting rod 19 is rotated to a position where the connecting hole 25 is opposite to the connecting rod fixing hole 14 on the frame 1, and one end of the front connecting rod 19 is connected to the connecting rod fixing plate 13 by passing the screw 17 through the connecting rod fixing hole 14 and the connecting hole 25, so as to limit the rotation of the swing armrest 3 relative to the frame 1, so that the function of the elliptical machine is converted into the function of a fitness bike. The exerciser can sit on the seat 2, hold the upper part of the front swing armrest 3 with his hands, and alternately pedal the pedals 11 on both sides with his feet to simulate bicycle riding exercise.

[0046] Preferably, the connection hole 25 is a threaded hole for threaded connection with the screw 17 .

[0047] The swing armrest 3 can swing back and forth relative to the frame 1 driven by the transmission connecting rod 12 during the elliptical machine function, and the swing armrest 3 can be fixed relative to the frame 1 during the exercise bike function for hand-holding during riding, eliminating the need to additionally provide a fixed armrest, improving the utilization rate of the swing armrest 3 and thus reducing costs.

[0048] The disassembly and assembly between the front connecting rod 19 and the rear connecting rod 16 can also be carried out by removing the front connecting rod 19 from the swing armrest 3 and then performing the disassembly and assembly.

[0049] Figure 6 As shown, the swing armrest 3 includes an upper gripping portion 4 and a lower linkage portion 6. A rotating member is connected to the lower end of the linkage portion 6. The rotating member includes a socket block 26. A threaded post 21 is provided on the socket block 26. One end of the front connecting rod 19 is sleeved on the socket block 26 and is threadedly connected to the threaded post 21 through a nut 20 to fix the front connecting rod 19 to the rotating member.

[0050] When the screw 17 passes through the gear position hole 24 and the connecting hole 25 to connect the front connecting rod 19 and the rear connecting rod 16, a flat washer 18 is clamped between the screw 17 and the front connecting rod 19 and the rear connecting rod 16.

[0051] Figure 3 、 Figure 4 As shown, preferably, one end of the rear connecting rod 16 is sleeved on the pedal shaft 15 and can rotate relative to the crank 10 and the pedal 11. After the rear connecting rod 16 is disassembled from the front connecting rod 19, the rear connecting rod 16 can rotate to a position overlapping with the crank 10 and is fixed by a fastener, so that after the rear connecting rod 16 is disassembled from the front connecting rod 19, the rear connecting rod 16 does not interfere with the exerciser's pedaling of the pedal 11.

[0052] Preferably, the fastener is a binding rope. The fastener is not limited to the binding rope, and existing conventional connection structures are applicable to this patent, such as fastening screws, locking pins, etc.

[0053] The above has introduced the dual-purpose exercise bike provided by the present utility model. Specific examples are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the present utility model and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. Dual-purpose fitness bike, comprising a frame and a pedal mechanism. A seat cushion is installed on the rear part of the frame. The pedal mechanism includes pedals provided on both sides of the rear part of the frame and capable of making circular motions around an axis. Swing handrails are provided on both sides of the front part of the frame. The middle part of the swing handrails is hinged to the frame. The pedals are linked and cooperated with the swing handrails on the same side through transmission connecting rods, and it is characterized in that, The transmission connecting rod includes a rear connecting rod hinged to the pedal and a front connecting rod hinged to the lower part of the swing armrest. The rear connecting rod and the front connecting rod are detachably connected. A connecting part that can be detachably connected to the front connecting rod is provided on the frame. When the function is switched, the front connecting rod and the rear connecting rod are separated, and the front connecting rod is connected to the connecting part to limit the relative rotation of the swing armrest with respect to the frame.

2. The two-purpose fitness bike according to claim 1, characterized in that, A limiting groove is provided on the front connecting rod / rear connecting rod, and the rear connecting rod / front connecting rod is slidably connected to the limiting groove to limit the relative movement of the front connecting rod and the rear connecting rod in a straight line. A number of gear holes are provided on the rear connecting rod, and a connecting hole is provided on the front connecting rod. The connecting hole can be selectively aligned with one of the gear holes and connected by a screw to adjust the length of the transmission connecting rod between the pedal and the swing armrest.

3. The dual-purpose exercise bike according to claim 2, characterized in that, The connecting part is a connecting rod fixing piece provided on the frame. A connecting rod fixing hole corresponding to the connecting hole is provided on the connecting rod fixing piece. When the function is switched, the front connecting rod rotates to a position where the connecting hole is opposite to the connecting rod fixing hole and is connected by a screw.

4. The dual-purpose fitness bike according to claim 1, characterized in that, An armrest rod is horizontally arranged on the front part of the frame. A sleeve is connected to the middle part of the swing armrest, and the sleeve is sleeved on the armrest rod so that the swing armrest can swing back and forth around the armrest rod.

5. The dual-purpose exercise bike according to claim 1, characterized in that The pedal mechanism includes a transmission shaft and a crank. The transmission shaft is installed on the rear part of the frame, and both ends of the transmission shaft are respectively connected with cranks located on both sides of the frame. The pedal is connected to the crank, and the pedal can make a circular motion around the transmission shaft.

6. The dual-purpose exercise bike according to claim 5, characterized in that, A pedal shaft is connected to the pedal, and the pedal shaft is connected to one end of the crank. One end of the rear connecting rod is sleeved on the pedal shaft and can rotate relative to the crank and the pedal. After the rear connecting rod and the front connecting rod are disassembled, the rear connecting rod can rotate to a position overlapping with the crank and is fixed by a fastener.

7. The dual-purpose fitness bike according to claim 6, characterized in that, The fastener is a binding rope.

8. The dual-purpose exercise bike according to claim 2, wherein, A number of gear holes are distributed in sequence along the length direction of the rear connecting rod. A limiting groove extending along the length direction is formed on the side surface of one end of the front connecting rod. A protruding part is provided at one end of the rear connecting rod, and the protruding part is inserted into the limiting groove and slidably cooperates with the limiting groove, so that the rear connecting rod can move back and forth parallel to the front connecting rod to switch the gear hole opposite to the connecting hole.

9. The dual-purpose exercise bike according to claim 8, wherein A rotating part is connected to the lower part of the swing armrest, and one end of the front connecting rod is sleeved on the rotating part, and the rotating part is threadedly connected with a nut to fix the front connecting rod.

10. The dual-purpose exercise bike according to claim 1, characterized in that, When the front connecting rod and the rear connecting rod are connected, they are end-to-end and parallel to each other.

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