Indoor and outdoor multifunctional bicycle with three-switching pedal plates

Abstract

The utility model relates to an indoor and outdoor multifunctional bicycle with three-tangent conversion pedals, which comprises a mandrel, a belt pulley group and a left wheel are assembled on two sides of the mandrel, a first clutch component, a second clutch component and two cranks are assembled at the position of the belt pulley group and the left wheel, and each crank is assembled with a groove tooth piece and a one-way bearing. The two clutches are respectively assembled to one side edge and the other side edge of the mandrel, the clutch control device comprises two pull wire fixing pieces which are respectively assembled at the two clutches, each pull wire fixing piece is provided with two pull wires which are connected with the clutch control device, and the clutch control device controls the clutches to be kept in a separation mode 3; or the two cranks are meshed at a specific angle in a mode 1 or a mode 2, the mode 3 is a mode that the two cranks are completely free, the mode 1 is a common bicycle mode that the two cranks differ by 180 degrees, and the mode 2 is a mode that the two cranks differ by 0 degree, and the two cranks are parallel and simultaneously pedaled.

Description

Technical Field

[0001] The utility model provides a technical field of a multifunctional bicycle, especially a multifunctional indoor and outdoor bicycle with a three-cut transformable pedal on the technical aspect. Background Art

[0002] Press, since the inventors of the present utility model developed the first generation of multifunctional bicycles decades ago, they have still spared no effort in improving the multifunctional bicycles. In the actual production and use of the previous multifunctional bicycles (the patent with the publication number CN206511065U), many problems can still be found. For example, its wire control component includes a pivot shaft, and the aforementioned pivot shaft is provided with four first pivot points and four second pivot points. The aforementioned four first pivot points are pivotally connected to the aforementioned clip body. The aforementioned four second pivot points are pivotally connected to one end of two toggle joints and four hook end pivot sides. One end of the elastic element abuts against the aforementioned clip body, and the other end of the elastic element abuts against a pivot seat. A compression spring is arranged in the aforementioned pivot seat and is threaded through a cable fixing group. The aforementioned cable fixing group includes a transverse screw passing through the aforementioned pivot seat and the aforementioned compression spring and locking to the aforementioned cable fixing seat, and a longitudinal screw winding one end of the cable and locking to the aforementioned cable fixing seat. It can be seen from the above that the clip body can be further composed of an upper clip and a lower clip, indicating that its structure is complex and there are many components, so there is a need for improvement. Content of the Utility Model

[0003] The main purpose of the present utility model is to provide a multifunctional indoor and outdoor bicycle with a three-cut transformable pedal.

[0004] To achieve the above object, the present utility model provides an indoor and outdoor multi-functional bicycle with a three-cut conversion foot pedal, including: a spline seat on one side of a mandrel spline-connected to a pulley group, a first clutch assembly that penetrates the pulley group and is arranged on both sides of the pulley group, a first crank, a first groove tooth member fixedly arranged at a specific angle on the first crank, a first one-way bearing arranged in the first groove tooth member, and the first one-way bearing is arranged on one side of the mandrel; a spline seat on the other side of the mandrel spline-connected to a left wheel, a second clutch assembly that penetrates the left wheel and is arranged on both sides of the left wheel, a second crank, a second groove tooth member fixedly arranged at a specific angle on the second crank, a second one-way bearing arranged in the second groove tooth member, and the second one-way bearing is arranged on the other side of the mandrel; a clutch control device, which includes a wire fixing member respectively arranged at the first clutch assembly and the second clutch assembly, and two wires are arranged on each wiring fixing member to connect the clutch control device. The clutch control device controls the first clutch assembly and the second clutch assembly to engage in a state where the first crank and the second crank differ by 0 degrees or 180 degrees, or controls the clutch to be completely disengaged, so that the first crank and the second crank are in a completely free state, so as to achieve multiple movement mode selections of the general bicycle pedaling in mode 1, the parallel pedaling of the first crank and the second crank in mode 2, or the completely free pedaling of the first crank and the second crank in mode 3.

[0005] Furthermore, the first crank includes a first toothed hole, a first special tooth groove is arranged in the first toothed hole, and the first groove tooth member is provided with a first special tooth corresponding to the first special tooth groove for mutual combination.

[0006] Furthermore, a first elastic sheet, a first locking member and a first cap are arranged on one side of the first toothed hole of the first crank. The first locking member is provided with a first screw hole screwed to a first thread on one side of the mandrel.

[0007] Furthermore, the first clutch assembly includes a first male tooth disc, four outwardly protruding first convex teeth are arranged on the first male tooth disc, and the shapes of the four first convex teeth are different. The first groove tooth member is provided with a first notch corresponding to the shape of each first convex tooth, so that there is only one coincidence when the first crank rotates one circle.

[0008] Furthermore, the second crank includes a second toothed hole, a second special tooth groove is arranged in the second toothed hole, and the second groove tooth member is provided with a second special tooth corresponding to the second special tooth groove for mutual combination.

[0009] Furthermore, a second elastic sheet, a second locking member and a second cap are arranged on one side of the second toothed hole of the second crank. The second locking member is provided with a second screw hole screwed to a second thread on the other side of the mandrel.

[0010] Further, the second clutch assembly includes a second male gear disk, on which there are four outwardly protruding second convex teeth. The opposite second convex teeth have the same shape. The second grooved tooth member is provided with second notches corresponding to the shape of each second convex tooth, so that the second crank can be engaged at both 0 degrees and 180 degrees.

[0011] Further, two first bearings and the first one-way bearing are assembled at an inner hole of the first grooved tooth member. A first bushing is assembled at an inner hole of the first one-way bearing. A third spline seat is arranged inside the first bushing, and the third spline seat is sleeved on the first spline.

[0012] Further, two second bearings and the second one-way bearing are assembled at an inner hole of the second grooved tooth member. A second bushing is assembled at an inner hole of the second one-way bearing. A fourth spline seat is arranged inside the second bushing, and the fourth spline seat is sleeved on the second spline.

[0013] Further, the first clutch assembly includes a first sliding disk. Three first struts pass through three holes provided on a disk body of the transmission power group. Then, a first spring is sleeved on each of the three first struts. The first male gear disk locks three first screws to a threaded hole of each of the three first struts corresponding to three round holes.

[0014] Further, the second clutch assembly includes a second sliding disk. Three second struts pass through three holes provided on the left wheel. Then, a second spring is sleeved on each of the three second struts. The second male gear disk locks three second screws to a threaded hole of each of the three second struts corresponding to three round holes.

[0015] Further, the transmission power group is a belt, a belt pulley group or a chain, a sprocket group.

[0016] Further, the cable fixing member is fixed to the first clutch assembly or the second clutch assembly with a thrust bearing.

[0017] Further, a pedal is respectively assembled at the free ends of the first crank and the second crank.

[0018] Further, the clutch control device includes a cable manually pulled by a knob. The other end of the cable is fixed with an elastic traction member. The elastic traction member is further connected to two diverters correspondingly with two traction cables. The two diverters are respectively connected to two groups of the cable fixing members with four cables, so that the four cables can move synchronously when the knob acts.

[0019] Further, the clutch control device includes a turntable driven by a motor power. A cable is wound around the motor turntable, and an elastic traction member is fixed to the other end of the cable. The elastic traction member then drives two diverging devices through two traction cables, and the two diverging devices are respectively connected to two groups of cable fixing members by four cables, so that when the turntable moves, the four cables can move synchronously and pull.

[0020] Further, an operation panel is provided on the vehicle frame. The operation panel is electrically connected to a power supply and the motor. The operation panel is provided with a plurality of buttons and a blue light to display the positions of 0 mm and engagement. When the power supply is turned on, the blue light automatically lights up at the positions of 0 mm and engagement. Press the button once, and a red light and a green light light up while pulling 8 mm. Press the button twice continuously, the red light and a yellow light light up, pulling from 0 mm to 8 mm, and after stopping for two seconds, it returns to 0 mm and the blue light lights up.

[0021] With a single-point drive multi-cable device, it can stably and simultaneously control the first clutch assembly and the second clutch assembly on both sides of the mandrel. Cooperating with the crank pedals sleeved on the outer circumferences of the first one-way bearing and the second one-way bearing on both sides, it can achieve multiple motion mode selections of general bicycle pedaling in mode 1, parallel pedaling of the first crank and the second crank in mode 2, or completely free pedaling of the first crank and the second crank in mode 3. Description of the Drawings

[0022] The following further describes the present invention in detail in conjunction with the drawings and specific embodiments.

[0023] Figure 1 It is a three-dimensional schematic diagram of one embodiment of the present invention and in mode 1;

[0024] Figure 2 It is a plane sectional view of one embodiment of the present invention;

[0025] Figure 3 It is a three-dimensional exploded schematic diagram of the rear side of the first crank of one embodiment of the present invention;

[0026] Figure 4 It is a three-dimensional exploded schematic diagram of the meshing state of the first external gear disk and the first grooved tooth member of one embodiment of the present invention;

[0027] Figure 5 It is a three-dimensional exploded schematic diagram of the front side of the first crank of one embodiment of the present invention;

[0028] Figure 6 It is a three-dimensional exploded schematic diagram of the separation state of the first clutch assembly and the first crank of one embodiment of the present invention;

[0029] Figure 7a It is a schematic diagram of the action plane of the transmission power group and the first clutch assembly of one embodiment of the present invention;

[0030] Figure 7b For Figure 7a Enlarged view of part A in

[0031] Figure 8 Stereo exploded view of the rear side of the second crank in one embodiment of the present utility model;

[0032] Figure 9 Stereo exploded view of the meshing state of the second external gear disk and the second grooved tooth part in one embodiment of the present utility model;

[0033] Figure 10 Stereo exploded view of the front side of the second crank in one embodiment of the present utility model;

[0034] Figure 11 Stereo exploded view of the separated state of the second clutch assembly and the second crank in one embodiment of the present utility model;

[0035] Figure 12a Action plane diagram of the left wheel and the second clutch assembly in one embodiment of the present utility model;

[0036] Figure 12b For Figure 12a Enlarged view of part A in

[0037] Figure 13 Stereo exploded view of the clutch control device in one embodiment of the present utility model;

[0038] Figure 14 Stereo diagram of the power type clutch control device in one embodiment of the present utility model;

[0039] Figure 15 Stereo diagram of one embodiment of the present utility model including a clutch control device and being in mode 2;

[0040] Figure 16 Action plane diagram of the clutch control device in one embodiment of the present utility model;

[0041] Figure 17 Stereo diagram of the manual type clutch control device and being in mode 3 in another embodiment of the present utility model;

[0042] Figure 18 Action plane diagram of the operation panel in one embodiment of the present utility model.

[0043] Explanation of reference numerals

[0044] 10. Mandrel; 11. First spline;

[0045] 12. Second spline; 13. First thread;

[0046] 14. Second thread; 20. Transmission power unit

[0047] 21. First spline seat; 22. Disc body

[0048] 221. Hole; 30. First clutch assembly

[0049] 31. First male gear disc; 311. First convex tooth

[0050] 312. Round hole; 32. First sliding disc

[0051] 33. First strut; 331. Threaded hole

[0052] 34. First spring; 35. First screw

[0053] 40. First crank; 41. First grooved tooth part

[0054] 411. First special tooth; 412. First notch

[0055] 413. First bearing; 414. First bushing

[0056] 4141. Third spline seat; 42. First one-way bearing

[0057] 43. First toothed hole; 431. First special tooth groove

[0058] 44. First elastic piece; 45. First locking part

[0059] 451. First screw hole; 46. First cap

[0060] 50. Left wheel; 51. Second spline seat

[0061] 52. Hole; 60. Second clutch assembly

[0062] 61. Second male gear disc; 611. Second convex tooth

[0063] 612. Round hole; 62. Second sliding disc

[0064] 63. Second strut; 631. Threaded hole

[0065] 64. Second spring; 65. Second screw

[0066] 70. Second crank; 71. Second grooved tooth part

[0067] 711. Second special tooth; 712. Second notch

[0068] 713. Second bearing; 714. Second bushing

[0069] 7141, Fourth spline seat; 72, Second one-way bearing;

[0070] 73, Second tooth-shaped hole; 731, Second special tooth groove;

[0071] 74, Second elastic piece; 75, Second locking member;

[0072] 751, Second screw hole; 76, Second cap;

[0073] 80, Clutch control device; 81, Cable fixing member;

[0074] 811, Cable; 82, Cable fixing member;

[0075] 83, Thrust bearing; 84, Motor;

[0076] 85, Cable; 86, Elastic traction member;

[0077] 861, Traction cable; 87, Divider;

[0078] 88, Knob; 90, Frame;

[0079] 91, Pedal; 92, Belt;

[0080] 93, Operation panel; B, Blue light;

[0081] R, Red light; G, Green light;

[0082] Y, Yellow light. Detailed implementation manner

[0083] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0084] Refer to Figure 1 , Figure 2 , Figure 6 , Figure 11 and Figures 13 to 16 As shown in

[0085] A mandrel 10 is pivotally arranged at a vehicle frame 90. On one side of the mandrel 10, a first spline 11 is provided to connect to a first spline seat 21 of a transmission power unit 20. A first clutch assembly 30 is provided through and on both sides of the transmission power unit 20. A first crank 40 is fixedly provided with a first grooved tooth member 41 at a specific angle. The first grooved tooth member 41 is provided with a first one-way bearing 42, and the first one-way bearing 42 is arranged on one side of the mandrel 10. On the other side of the mandrel 10, a second spline 12 is provided to connect to a second spline seat 51 of a left wheel 50. A second clutch assembly 60 is provided through and on both sides of the left wheel 50. A second crank 70 is fixedly provided with a second grooved tooth member 71 at a specific angle. The second grooved tooth member 71 is provided with a second one-way bearing 72, and the second one-way bearing 72 is arranged on the other side of the mandrel 10. A clutch control device 80 includes a cable fixing member 81 and 82 respectively provided at the first clutch assembly 30 and the second clutch assembly 60. Each of the cable fixing members 81 and 82 is provided with two cables 811 connecting to the clutch control device 80. The clutch control device 80 controls the first clutch assembly 30 and the second clutch assembly 60 to respectively engage in a state where the first grooved tooth member 41 and the second grooved tooth member 71 of the first crank 40 and the second crank 70 are 0 degrees or 180 degrees apart, or controls the first clutch assembly 30 and the second clutch assembly 60 to be completely disengaged, so that the first crank 40 and the second crank 70 are in a completely free state, to achieve the pedaling of a general bicycle in its mode 1 (see Figure 1 shown), the parallel pedaling of the first crank 40 and the second crank 70 in mode 2 (see Figure 15 shown), or the completely free pedaling of the first crank 40 and the second crank 70 in mode 3 (see Figure 17 shown) for multiple motion mode selections.

[0086] See Figures 13 to 17 shown, for the indoor and outdoor multifunctional bicycle with a three-cut transformation pedal, wherein the clutch control device 80 includes a manually operated knob 88 (see Figure 17 shown) or a turntable driven by a motor 84. A cable 85 is wound around the turntable of the motor 84 or the knob 88 is connected to control a cable 85. The other end of the cable 85 is fixedly provided with an elastic traction member 86. The elastic traction member 86 further drives two diverters 87 correspondingly through two traction cables 861. The two diverters 87 are respectively connected to two groups of the cable fixing members 81 through four of the cables 811, so that when the turntable of the motor 84 operates, the four cables 811 can be pulled synchronously.

[0087] See Figure 3As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the first crank 40 includes a first toothed hole 43, and a first special tooth groove 431 is provided in the first toothed hole 43. The first grooved tooth member 41 is provided with a first special tooth 411 corresponding to the first special tooth groove 431 and can be combined with each other.

[0088] Refer to Figure 3 , Figure 6 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, on one side of the first toothed hole 43 of the first crank 40, a first elastic piece 44, a first locking member 45 and a first cap 46 are assembled. The first locking member 45 is provided with a first screw hole 451 and is locked to a first thread 13 on one side of the spindle 10.

[0089] Refer to Figure 2 , Figure 4 , Figure 6 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the first clutch assembly 30 includes a first male toothed disc 31. Four outwardly protruding first convex teeth 311 are provided on the first male toothed disc 31. The four first convex teeth 311 have different shapes. The first grooved tooth member 41 is provided with a first notch 412 corresponding to the shape of each first convex tooth 311, so that there is only one coincidence when the first crank 40 rotates one circle.

[0090] Refer to Figure 8 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the second crank 70 includes a second toothed hole 73, and a second special tooth groove 731 is provided in the second toothed hole 73. The second grooved tooth member 71 is provided with a second special tooth 711 corresponding to the second special tooth groove 731 and can be combined with each other.

[0091] Refer to Figure 8 , Figure 11 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, on one side of the second toothed hole 73 of the second crank 70, a second elastic piece 74, a second locking member 75 and a second cap 76 are assembled. The second locking member 75 is provided with a second screw hole 751 and is locked to a second thread 14 on the other side of the spindle 10.

[0092] Refer to Figures 9 to 12b As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the second clutch assembly 60 includes a second male toothed disc 61. Four outwardly protruding second convex teeth 611 are provided on the second male toothed disc 61. The opposite second convex teeth 611 have the same shape. The second grooved tooth member 71 is provided with a second notch 712 corresponding to the shape of each second convex tooth 611, so that the second crank 70 can be engaged at both 0 degrees and 180 degrees.

[0093] Refer toFigures 3 to 6 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, two first bearings 413 and a first one-way bearing 42 are assembled at an inner hole of the first groove tooth part 41. A first bushing 414 is assembled at an inner hole of the first one-way bearing 42. A third spline seat 4141 is arranged inside the first bushing 414, and the third spline seat 4141 is sleeved on the first spline 11.

[0094] Refer to Figures 8 to 11 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, two second bearings 713 and a second one-way bearing 72 are assembled at an inner hole of the second groove tooth part 71. A second bushing 714 is assembled at an inner hole of the second one-way bearing 72. A fourth spline seat 7141 is arranged inside the second bushing 714, and the fourth spline seat 7141 is sleeved on the second spline 12.

[0095] Refer to Figure 2 、 Figure 6 、 Figure 7a 、 Figure 7b As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the first clutch assembly 30 includes a first sliding disk 32. Three first struts 33 pass through three holes 221 arranged on a disk body 22 of the transmission power group 20. Then, three first springs 34 are respectively sleeved on the three first struts 33. The first external gear disk 31 locks three first screws 35 to a threaded hole 331 of the three first struts 33 corresponding to three round holes 312.

[0096] Refer to Figure 2 、 Figure 11 、 Figure 12a 、 Figure 12b As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the second clutch assembly 60 includes a second sliding disk 62. Three second struts 63 pass through three holes 52 arranged on the left wheel 50. Then, three second springs 64 are respectively sleeved on the three second struts 63. The second external gear disk 61 locks three second screws 65 to a threaded hole 631 of the three second struts 63 corresponding to three round holes 612.

[0097] Refer to Figure 2 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the transmission power group 20 is a belt, a belt pulley group or a chain, a sprocket group.

[0098] Refer to Figure 2 、 Figures 13 to 16 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation pedal, the cable fixing parts 81 and 82 are fixed to the first clutch assembly 30 or the second clutch assembly 60 by a thrust bearing 83.

[0099] Refer to Figure 1 As shown, for the indoor and outdoor multi-functional bicycle with a three-cut transformation foot pedal, a pedal 91 and a strap 92 are respectively assembled at the free ends of the first crank 40 and the second crank 70.

[0100] Refer to Figure 1 、 Figure 2 and Figures 13 to 16 As shown, when the clutch control device 80 operates, the cable 811 pulls the two cable fixing parts 81 and 82 closer to the middle. One cable fixing part 81 is fixed to the first clutch assembly 30, so the first convex tooth 311 is pulled out of the first notch 412, making the first crank 40 in a completely free state. The other cable fixing part 82 is fixed to the second clutch assembly 60, so the second convex tooth 611 is pulled out of the second notch 712, making the second crank 70 in a completely free state (Mode 3). At this time, the first crank 40 and the second crank 70 can be pedaled individually or arbitrarily for movement. When the clutch control device 80 releases the tension, the first spring 34 pushes the first convex tooth 311 back to engage with the first notch 412, but it can only engage at the 0-degree angle. The second spring 64 pushes the second convex tooth 611 back to engage with the second notch 712, and there are two options for the angle, 0 degrees and 180 degrees (Mode 1 or Mode 2). When engaging at the 0-degree angle (Mode 2), the first crank 40 and the second crank 70 move in parallel. When engaging at the 180-degree angle (Mode 1), it can be pedaled like a general bicycle.

[0101] Refer to Figure 18 As shown, it is a schematic plan view of the operation panel of one embodiment. A frame 90 is provided with an operation panel 93. The operation panel 93 is provided with a plurality of buttons and signal lights. The operation panel 93 is electrically connected to a power supply (not shown in the figure) and a motor 84. The operation panel 93 mainly has a blue light (B) at the position of 0 mm engagement. When the power supply is turned on, the blue light (B) is automatically at the 0 mm position (Mode 1 or 2). Press the button once, the red light (R) and the green light (G) light up and pull 8 mm at the same time (Mode 3). Press the button twice continuously, the red light (R) and the yellow light (Y) light up, pull from 0 mm to 8 mm, stop for two seconds (the transformation between Mode 1 and Mode 2 can be carried out), and then return to 0 mm and the blue light (B) lights up (the transformation between Mode 1 and Mode 2 is completed).

[0102] As can be seen from the above, for the indoor and outdoor multi-functional bicycle with a three-cut transformation foot pedal of the present utility model, with a single-point drive multi-cable device, it stably controls the first clutch assembly and the second clutch assembly on both sides of the mandrel at the same time. Cooperating with the crank pedals sleeved on the outer peripheries of the first one-way bearing and the second one-way bearing on both sides, multiple movement mode selections can be achieved, including the pedaling of a general bicycle in Mode 1, the parallel pedaling of the first crank and the second crank in Mode 2, or the completely free pedaling of the first crank and the second crank in Mode 3.

[0103] The above description is only a preferred embodiment of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

Claims

1. An indoor and outdoor multifunctional bicycle with three-changeable pedals, characterized in that: include: A spindle, the spindle is pivoted to a frame, a first spline assembly is provided on one side of the spindle to connect to a first spline seat of a transmission power assembly; a second spline assembly is provided on the other side of the spindle to connect to a second spline seat of a left wheel; A first clutch assembly, the first clutch assembly passes through and is arranged on both sides of the transmission power group; A first crank, a first toothed part is fixedly arranged at a specific angle on the first crank, the first toothed part is assembled with a first one-way bearing, and the first one-way bearing is assembled on one side of the spindle; a second clutch assembly, the second clutch assembly passing through and being arranged on both sides of the left wheel; A second crank, a second toothed part is fixedly mounted at a specific angle on the second crank, the second toothed part is assembled with a second one-way bearing, and the second one-way bearing is assembled on the other side of the spindle; A clutch control device comprises a wire fixing member respectively arranged at the first clutch component and the second clutch component, and each wire fixing member is provided with two wires connected to the clutch control device.

2. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 1, characterized in that: The first crank comprises a first tooth-shaped hole, a first special tooth groove is arranged in the first tooth-shaped hole, and the first groove tooth member is provided with a first special tooth corresponding to the first special tooth groove so as to be combined with each other.

3. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 2, characterized in that: A first elastic sheet, a first screw lock component and a first cap are assembled on one side of the first toothed hole of the first crank. The first screw lock component is provided with a first screw hole screwed to a first thread on one side of the spindle.

4. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 3, characterized in that: The first clutch assembly includes a first male gear plate, on which four first protruding teeth are provided, the four first protruding teeth have different shapes, and the first grooved tooth member is provided with a first notch corresponding to the shape of each first protruding tooth, so that the first crank rotates one circle to achieve a match.

5. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 4, characterized in that: The second crank comprises a second tooth-shaped hole, a second special tooth groove is arranged in the second tooth-shaped hole, and the second toothed member is provided with a second special tooth corresponding to the second special tooth groove so as to be combined with each other.

6. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 5, characterized in that: A second elastic sheet, a second screw lock component and a second cap are assembled on one side of the second toothed hole of the second crank. The second screw lock component is provided with a second screw hole screwed to a second thread on the other side of the spindle.

7. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 6, characterized in that: The second clutch assembly includes a second male gear plate, on which four second protruding teeth are provided, which are protruding outward. The second protruding teeth relative to each other have the same shape. The second toothed member is provided with a second notch corresponding to the shape of each second protruding tooth, so that the second crank can be matched at 0 degrees and 180 degrees.

8. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 7, characterized in that: Two first bearings and a first one-way bearing are arranged at an inner hole of the first slotted tooth part, a first shaft sleeve is arranged at an inner hole of the first one-way bearing, a third spline seat is arranged inside the first shaft sleeve, and the third spline seat is sleeved on the first spline.

9. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 8, characterized in that: Two second bearings and a second one-way bearing are arranged at an inner hole of the second toothed member, a second shaft sleeve is arranged at an inner hole of the second one-way bearing, a fourth spline seat is arranged inside the second shaft sleeve, and the fourth spline seat is sleeved on the second spline.

10. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 9, characterized in that: The first clutch assembly includes a first sliding plate, which has three first pillars passing through three holes set on a plate body of the transmission power group. The three first pillars are respectively sleeved with a first spring, and the first male gear plate corresponds to three round holes to lock three first screws to a threaded hole of the three first pillars.

11. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 10, characterized in that: The second clutch assembly includes a second sliding plate, and the second sliding plate passes through three holes set on the left wheel with three second pillars. The three second pillars are respectively sleeved with a second spring, and the second male gear plate corresponds to three round holes to lock three second screws to a threaded hole of the three second pillars.

12. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 11, characterized in that: The transmission power group is a belt, a pulley group or a chain, a sprocket group.

13. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 12, characterized in that: The wire fixing member is fixed to the first clutch component or the second clutch component by a thrust bearing.

14. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 13, characterized in that: The free ends of the first crank and the second crank are respectively provided with a pedal.

15. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 14, characterized in that: The clutch control device includes a cable that is manually pulled by a knob, and an elastic traction member is fixed to the other end of the cable. The elastic traction member is then linked to two branch switches with two traction cables. The two branch switches are respectively connected to two groups of cable fixing members with four pull wires, so that the four pull wires can be pulled synchronously when the knob is operated.

16. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 14, characterized in that: The clutch control device includes a turntable driven by a motor, a cable is wound around the motor turntable, an elastic traction member is fixed to the other end of the cable, and the elastic traction member is linked to two diverters by two traction cables. The two diverters are respectively connected to two groups of cable fixing members by four cable pulls, so that the four cable pulls can be pulled synchronously when the turntable is in motion.

17. The indoor and outdoor multifunctional bicycle with three-changeable pedals as claimed in claim 16, characterized in that: The frame is provided with an operation panel, which is electrically connected to a power source and the motor. The operation panel is provided with a plurality of buttons and a blue light, and the blue light is used to display the positions of 0mm and engagement.

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