Transmission mechanism of exercise bicycle

Abstract

A transmission mechanism of an exercise bicycle comprises a machine frame, a driving wheel fixing pipe and a driven support which are matched with one another, a driving wheel matched with a pedal crankshaft is installed on the driving wheel fixing pipe, a driven wheel and an inertia wheel are installed on the driven support, and the driven wheel and the inertia wheel are arranged up and down and form a triangular structure with the driving wheel. The driving wheel, the driven wheel and the inertia wheel are connected through a belt, the driven support is provided with a belt pressing wheel assembly matched with the belt, the structure is simple, stability is good, machining and debugging are convenient, and cost is low.

Description

Technical fields:

[0001] This utility model relates to the technical field of fitness equipment, and in particular to a transmission mechanism for a fitness bike. Background technology:

[0002] Exercise bikes, a popular fitness equipment, work by using the pedaling motion of a bicycle in place to power an internal transmission mechanism, thereby strengthening muscles and improving body shape. Current exercise bike transmission mechanisms include... Figure 1 As shown, the machine includes a frame A, a first branch pipe B, a second branch pipe C, and a third branch pipe D that cooperate with each other. The first branch pipe A is equipped with a drive wheel E that cooperates with the foot crank shaft, the second branch pipe C is equipped with a driven wheel F, and the third branch pipe is equipped with an inertia wheel G. At the same time, the second branch pipe C is equipped with a belt pressure wheel assembly H that cooperates with the belt.

[0003] The disadvantages of existing transmission mechanisms are:

[0004] 1. The drive wheel, driven wheel, and inertia wheel are arranged in a straight line, resulting in a very long machine and wasting space.

[0005] 2. The three sets of support pipe structures increase the cost. Utility model content:

[0006] In view of the above-mentioned problems in the prior art, the purpose of this utility model is to provide a transmission mechanism for exercise bikes, which has a simple structure, saves space, has good stability, is easy to process and debug, and has low cost.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] The transmission mechanism of the exercise bike includes a frame, a drive wheel fixing tube, and a driven bracket that cooperate with each other. The drive wheel fixing tube is equipped with a drive wheel that cooperates with the foot pedal crank shaft. The driven bracket is equipped with a driven wheel and an inertia wheel. The driven wheel and the inertia wheel are arranged vertically and form a triangular structure with the drive wheel. The drive wheel, driven wheel, and inertia wheel are connected by a belt. The driven bracket is equipped with a belt pressure wheel assembly that cooperates with the belt.

[0009] Furthermore, the driven bracket is a hollow structure formed by the docking and fastening of the left and right support plates, with the driven wheel and the inertia wheel arranged vertically inside the hollow structure.

[0010] Furthermore, the pressure roller assembly includes a pressure roller assembly and a pressure roller that cooperate with each other; wherein, the pressure roller is mounted on the pressure roller assembly and locked, the surface of the pressure roller assembly is provided with an elongated slot, and the bolt passes through the elongated slot to install the pressure roller assembly in the threaded hole on the outer side of the right support plate; the right support plate is provided with a mounting plate that cooperates with the pressure roller assembly, and the adjusting bolt passes through the threaded hole on the mounting plate and presses against the pressure roller assembly to adjust the position of the pressure roller.

[0011] Furthermore, the pressure roller is fixed to the pressure roller assembly by screws and flat washers.

[0012] Furthermore, the outer side of the right support plate is provided with a triangular arrangement of threaded holes, and the outer side of the threaded holes forms a mounting plate. Three long slots are provided on the surface of the pressure roller assembly. One side of the pressure roller assembly is bent outward to form a baffle. The adjusting bolt passes through the threaded hole on the mounting plate and presses against the baffle of the pressure roller assembly to adjust the installation position of the pressure roller assembly in the long slot, thereby adjusting the position of the pressure roller.

[0013] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] 1. The driving wheel, driven wheel, and inertia wheel form a triangular structure, which provides better stability and saves space.

[0015] 2. The reduction in supporting components saves manufacturing costs, increases manufacturing precision, and thus reduces assembly difficulty. Attached image description:

[0016] The present invention will now be described in detail with reference to the accompanying drawings:

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

[0018] Figure 2 This is a schematic diagram of the combined structure of this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the combined structure of this utility model. Figure 2 . Detailed implementation method:

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments:

[0021] Figure 2-3 The figure shows an embodiment of this utility model:

[0022] The transmission mechanism of the exercise bike includes a frame 1, a drive wheel fixing tube 2, and a driven bracket 3 that cooperate with each other. The drive wheel fixing tube 1 is equipped with a drive wheel 4 that cooperates with the foot pedal crank shaft. The driven bracket 3 is equipped with a driven wheel 5 and an inertia wheel 6. The driven wheel 5 and the inertia wheel 6 are arranged vertically and form a triangular structure with the drive wheel 4. The drive wheel 4, the driven wheel 5, and the inertia wheel 6 are connected by a belt 7. The driven bracket 3 is equipped with a belt pressure pulley assembly 8 that cooperates with the belt 7.

[0023] Furthermore, the driven bracket 3 is a hollow structure formed by the docking and fastening of the left support plate 31 and the right support plate 32, and the driven wheel 5 and the inertia wheel 6 are arranged vertically inside the hollow structure.

[0024] Furthermore, the pressure roller assembly 8 includes a pressure roller assembly 81 and a pressure roller 82 that cooperate with each other; wherein, the pressure roller 82 is mounted on the pressure roller assembly 81 and locked, the surface of the pressure roller assembly 81 is provided with an elongated slot 811, and the bolt 83 passes through the elongated slot 811 to install the pressure roller assembly 81 in the threaded hole on the outer side of the right support plate 32; the right support plate 32 is provided with a mounting plate 321 that cooperates with the pressure roller assembly 81, and the adjusting bolt 84 passes through the threaded hole on the mounting plate 321 and presses against the pressure roller assembly 81 to adjust the position of the pressure roller 82.

[0025] Furthermore, the pressure roller 82 is locked and fixed to the pressure roller assembly 81 by screws 821 and flat washers 822.

[0026] Furthermore, the outer side of the right support plate 32 is provided with triangularly arranged threaded holes 322, and the outer side of the threaded holes 322 forms a mounting plate 321. The surface of the corresponding pressure roller assembly 81 is provided with three elongated slots 811. One side of the pressure roller assembly 81 is bent outward to form a baffle 812. The adjusting bolt 84 passes through the threaded holes on the mounting plate 321 and presses against the baffle 812 of the pressure roller assembly 81 to adjust the installation position of the pressure roller assembly 81 in the elongated slots 811, thereby adjusting the position of the pressure roller 81.

[0027] This invention features a triangular structure formed by the driving wheel, driven wheel, and inertia wheel, resulting in better stability and space saving. It reduces the number of support components, lowers manufacturing costs, increases manufacturing precision, and thus reduces assembly difficulty.

[0028] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. The transmission mechanism of an exercise bike, characterized in that: It includes a frame that works together with each other, a drive wheel fixing tube, and a driven bracket. The drive wheel fixing tube is equipped with a drive wheel that works with the foot crank shaft. The driven bracket is equipped with a driven wheel and an inertia wheel. The driven wheel and the inertia wheel are arranged vertically and form a triangular structure with the drive wheel. The drive wheel, the driven wheel and the inertia wheel are connected by a belt. The driven bracket is equipped with a belt pressure wheel assembly that works with the belt.

2. The transmission mechanism of the exercise bike as described in claim 1, characterized in that: The driven support is a hollow structure formed by the docking and fastening of the left and right support plates, and the driven wheel and the inertia wheel are arranged vertically inside the hollow structure.

3. The transmission mechanism of the exercise bike as described in claim 2, characterized in that: The pressure roller assembly includes a pressure roller assembly and a pressure roller that cooperate with each other; wherein, the pressure roller is mounted on the pressure roller assembly and locked, the surface of the pressure roller assembly is provided with a long slot, and the bolt passes through the long slot to install the pressure roller assembly in the threaded hole on the outer side of the right support plate; the right support plate is provided with a mounting plate that cooperates with the pressure roller assembly, and the adjusting bolt passes through the threaded hole on the mounting plate and presses against the pressure roller assembly to adjust the position of the pressure roller.

4. The transmission mechanism of the exercise bike as described in claim 3, characterized in that: The pressure roller is fixed to the pressure roller assembly by screws and flat washers.

5. The transmission mechanism of the exercise bike as described in claim 3, characterized in that: The outer side of the right support plate has a triangular arrangement of threaded holes, and the outer side of the threaded holes forms a mounting plate. Three long slots are provided on the surface of the pressure roller assembly. One side of the pressure roller assembly is bent outward to form a baffle. The adjusting bolt passes through the threaded hole on the mounting plate and presses against the baffle of the pressure roller assembly to adjust the installation position of the pressure roller assembly in the long slot, thereby adjusting the position of the pressure roller.

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