X-shaped exercise bicycle

Abstract

An X-shaped exercise bicycle comprises a front support, a rear support, a belt pulley and a flywheel, the front support and the rear support are connected in an X shape, a rotating shaft and a flywheel shaft are arranged on the front support in a penetrating mode, a left crank and a right crank are arranged at the left end and the right end of the rotating shaft respectively and connected with a left pedal and a right pedal respectively, the belt pulley is connected with the rotating shaft, and the flywheel is connected with the flywheel shaft. The flywheel shaft penetrates through the flywheel, a belt connecting part is arranged at one end of the flywheel, a belt is arranged between the belt pulley and the belt connecting part, a magnetic control resistance device is arranged above the flywheel, and the rotating speed ratio of the belt pulley to the flywheel is 1: 9.5. According to the utility model, only one belt pulley and one flywheel are adopted to form the damping mechanism, so that the structure is simpler, the mounting space of the damping mechanism is also reduced, the mounting steps are reduced, the production cost of the exercise bicycle is also reduced, the rotating speed ratio of the belt pulley to the flywheel is 1: 9.5, and the same torsion force as that of the existing damping mechanism can be generated.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to an X-shaped fitness bike. Background Art

[0002] Exercise bikes are typical aerobic fitness equipment that simulates outdoor sports (as opposed to anaerobic fitness equipment). They are also called cardiopulmonary training equipment. They can improve a person's physical fitness and, of course, are accompanied by fat consumption. Long-term fat consumption will result in weight loss. The patent document with announcement number CN207221195U discloses a horse-riding fitness bike, including a frame and a pedaling mechanism, the frame including front legs and rear legs, the upper ends of the front legs are connected to the middle parts of the rear legs, the pedaling mechanism includes a bracket, a middle shaft, a left pedal, a right pedal, a left crank and a right crank, the middle shaft is pivotally connected to the middle part of the bracket, the left end of the middle shaft is fixedly connected to one end of the left crank, the other end of the left crank is hinged to the left pedal, the right end of the middle shaft is fixedly connected to one end of the right crank, and the other end of the right crank is hinged to the right pedal, the upper part of the bracket is connected to the seat cushion, and the middle shaft is also connected to a damping mechanism; the damping mechanism includes a first pulley fixedly connected to the middle shaft, an inertia flywheel movably sleeved on the middle shaft and a rotating shaft pivotally connected to the bracket and parallel to the middle shaft, a second pulley and a third pulley are fixedly connected to the rotating shaft, the first pulley and the second pulley are connected by a first belt, and the third pulley and the inertia flywheel are connected by a second belt.

[0003] In the above-mentioned disclosed patent, the damping mechanism is mainly composed of a first pulley, an inertia flywheel, a second pulley and a third pulley, which makes the structure of the damping mechanism more complicated. In addition, the installation space of the damping mechanism is larger, and the shell for covering the damping mechanism also needs to be larger, thereby increasing the production cost of the exercise bike. Utility Model Content

[0004] The utility model provides an X-shaped fitness vehicle, the main purpose of which is to overcome the problem that the damping mechanism in the existing fitness vehicle has a relatively complex structure, resulting in a large installation space for the damping mechanism and high production costs.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] An X-shaped fitness bike comprises a front bracket, a rear bracket, a pulley and a flywheel, wherein the front bracket and the rear bracket are connected in an X shape, the front bracket is provided with a rotating shaft and a flywheel shaft, the left and right ends of the rotating shaft are respectively provided with a left crank and a right crank, the left crank and the right crank are respectively connected to a left pedal and a right pedal, the pulley is connected to the rotating shaft, the flywheel shaft passes through the flywheel, one end of the flywheel is provided with a belt connecting portion, a belt is provided between the pulley and the belt connecting portion, a rotatable magnetically controlled resistance device is provided above the flywheel, and the speed ratio of the pulley to the flywheel is 1:9.5.

[0007] Furthermore, the front end of the front bracket is connected to a bearing mounting cylinder, and two left-right symmetrical bearings are provided in the bearing mounting cylinder, and the rotating shaft passes through the two bearings.

[0008] Furthermore, the rotating shaft is connected to a pulley mounting plate, and the pulley mounting plate is connected to the pulley.

[0009] Furthermore, the bottom of the front bracket is connected to a left connecting plate and a right connecting plate arranged on the left and right, the flywheel is located between the left connecting plate and the right connecting plate, the left connecting plate and the right connecting plate are respectively provided with a left connecting plate and a right connecting plate of the shaft, the flywheel shaft is arranged between the left connecting plate and the right connecting plate of the shaft, and the pulley is located on the left side of the front bracket.

[0010] Furthermore, the magnetically controlled resistance device includes an arc-shaped magnet mounting plate and a plurality of magnets arranged on the bottom surface of the magnet mounting plate, and the plurality of magnets are arranged front to back.

[0011] Furthermore, the magnet mounting plate is rotatably connected to the front bracket.

[0012] Furthermore, the front bracket is connected to a rear fixed plate, the top surface of the magnet mounting plate is connected to the front fixed plate, the rear end of the magnet mounting plate is hinged to the front bracket, a spring is provided between the front fixed plate and the rear fixed plate, the upper part of the rear bracket is provided with a multi-speed resistance adjuster, the multi-speed resistance adjuster has a pull rope, one end of the pull rope is connected to the front fixed plate, the rear fixed plate is connected to a mounting plate, the front end of the mounting plate is located on the front side of the front fixed plate, and the front end of the mounting plate is provided with a limit rod.

[0013] Furthermore, the rear bracket is provided with two first rope pulleys, two second rope pulleys and a rope winding pulley, and the front bracket is provided with two third rope pulleys, and the two first rope pulleys, two second rope pulleys, a rope winding pulley and two third rope pulleys are arranged in sequence from top to bottom, and an elastic rope is wound around the rope winding pulley, and the elastic rope is divided into two sections after passing around the rope winding pulley, and each section of the elastic rope corresponds to a first rope pulley, a second rope pulley and a third rope pulley, and each section of the elastic rope is connected to a pull ring at the end after passing around the corresponding third rope pulley, second rope pulley and first rope pulley in sequence.

[0014] Furthermore, the flywheel weighs two kilograms.

[0015] Furthermore, the front bracket is provided with a cover shell, and the pulley and flywheel are located in the cover shell.

[0016] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following advantages: the present invention only uses one pulley and one flywheel to form the damping mechanism, its structure is simpler, and the installation space of the damping mechanism is also smaller, which not only reduces the installation steps but also reduces the production cost of the exercise bike. The speed ratio of the pulley and the flywheel is 1:9.5, which can generate the same torque as the existing damping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of the utility model.

[0018] Figure 2 for Figure 1 A structural diagram from another angle.

[0019] Figure 3 This is a structural diagram of the utility model after removing the cover.

[0020] Figure 4 Based Figure 3 A structural diagram from another angle.

[0021] Figure 5 This is another structural diagram of the present utility model. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] Reference Figure 1 、 Figure 3 and Figure 4An X-shaped exercise bike includes a front frame 1, a rear frame 2, a pulley 3, and a flywheel 4. The front frame 1 and the rear frame 2 are connected in an X shape. The front frame 1 is provided with a rotating shaft 5 and a flywheel shaft 6. The left and right ends of the rotating shaft 5 are provided with a left crank 7 and a right crank 8, respectively. The left crank 7 and the right crank 8 are connected to a left pedal 9 and a right pedal 10, respectively. The pulley 3 is connected to the rotating shaft 5. The flywheel shaft 6 passes through the flywheel 4. One end of the flywheel 4 is provided with a belt connecting portion 41. A belt 11 is provided between the pulley 3 and the belt connecting portion 41. A rotatable magnetic resistance device 12 is provided above the flywheel 4. The speed ratio of the pulley 3 to the flywheel 4 is 1:9.5. The flywheel 4 weighs two kilograms.

[0024] Reference Figure 1 、 Figure 3 and Figure 4 The front end of the front bracket 1 is connected to a bearing mounting cylinder 13, and two left-right symmetrical bearings 14 are provided in the bearing mounting cylinder 13. The rotating shaft 5 passes through the two bearings 14, and the bearings 14 are nine-piece bowl bearings. The rotating shaft 5 is connected to a pulley mounting disk 15, and the pulley mounting disk 15 is connected to the pulley 3. When stepping on the left pedal 9 and the right pedal 10, the left crank 7 and the right crank 8 drive the rotating shaft 5 and the pulley 3 to rotate, and the pulley 3 then drives the flywheel to rotate through the belt 11. A seat 16, a backrest 17 and a first armrest 18 are provided at the top of the front bracket 1, and a second armrest 19 is provided at the top of the rear bracket 2.

[0025] Reference Figure 3 and Figure 4 The bottom of the front bracket 1 is connected with a left connecting plate 20 and a right connecting plate 21 arranged on the left and right sides, the flywheel 4 is located between the left connecting plate 20 and the right connecting plate 21, the left connecting plate 20 and the right connecting plate 21 are respectively provided with a left connecting piece 22 and a right connecting piece 23 of the shaft, the flywheel shaft 6 is arranged between the left connecting piece 22 and the right connecting piece 23 of the shaft, and the pulley 3 is located on the left side of the front bracket 1.

[0026] Reference Figure 3 and Figure 4The magnetically controlled resistance device 12 includes an arc-shaped magnet mounting plate 24 and a plurality of magnets 25 arranged on the bottom surface of the magnet mounting plate 24. The plurality of magnets 25 are arranged front to back. When the flywheel 4 rotates, the plurality of magnets 25 cut the magnetic field, thereby generating resistance to the flywheel 4. The magnet mounting plate 24 is rotatably connected to the front bracket 1. Specifically, the front bracket 1 is connected to a rear fixing plate 26, and the rear fixing plate 26 is specifically connected to the bearing mounting cylinder 13. The top surface of the magnet mounting plate 24 is connected to a front fixing plate 27. The rear end of the magnet mounting plate 24 is hinged to the front bracket 1. A spring 28 is provided between the front fixing plate 27 and the rear fixing plate 26. The upper part of the rear bracket 2 is provided with a resistance multi-speed adjuster 29, and the resistance multi-speed adjuster 29 has a pull rope (not shown in the figure). One end of the pull rope (not shown in the figure) is connected to the front fixing plate 27, and the rear fixing plate 26 is connected to a mounting plate 30. The front end of the mounting plate 30 is located on the front side of the front fixing plate 27, and the front end of the mounting plate 30 is provided with a limiting rod 31. The resistance multi-speed regulator 29 is an existing structure, and its specific structure will not be repeated here. The resistance multi-speed regulator 29 is used to drive the magnet mounting plate 24 to rotate up and down, thereby adjusting the distance between the magnet 25 and the flywheel 4, and then adjusting the resistance of the flywheel 4; specifically: when the resistance multi-speed regulator 29 is rotated clockwise, the pull rope (not shown in the figure) is contracted, so that the magnet mounting plate 24 rotates upward, thereby increasing the adjustment distance between the magnet 25 and the flywheel 4; when the resistance multi-speed regulator 29 is rotated counterclockwise, the pull rope (not shown in the figure) is loosened, so that the magnet mounting plate 24 rotates downward, thereby reducing the distance between the magnet 25 and the flywheel 4; the limit rod 31 is used to resist and limit the front fixing plate 27 to ensure the minimum distance between the magnet 25 and the flywheel 4; the spring 28 provides support force for the front fixing plate 27.

[0027] Reference Figure 1 and Figure 2 The rear bracket 2 is provided with two first rope pulleys 32, two second rope pulleys 33, and a rope winding pulley 34, and the front bracket 1 is provided with two third rope pulleys 35. The two first rope pulleys 32, two second rope pulleys 33, one rope winding pulley 34, and two third rope pulleys 35 are arranged in sequence from top to bottom. An elastic rope 36 is wound around the rope winding pulleys 34. After the elastic rope 36 passes through the rope winding pulleys 34, it is divided into two sections. Each section of the elastic rope 36 corresponds to a first rope pulley 32, a second rope pulley 33, and a third rope pulley 35. After each section of the elastic rope 36 passes through the corresponding third rope pulley 35, the second rope pulley 33, and the first rope pulley 32 in sequence, a pull ring 37 is connected to the end of the elastic rope 36. The pull ring 37 is used for the hand to grasp and pull the elastic rope 36, thereby exercising the hand.

[0028] Reference Figure 1 and Figure 2The front bracket 1 is provided with a cover 38, the pulley 3 and the flywheel 4 are located in the cover 38, and the left and right ends of the rotating shaft 5 pass through the cover 38 and are connected to the left crank 7 and the right crank 8 respectively. Figure 1 , the rotating shaft 5, the left crank 7 and the right crank 8 are integrally formed; Figure 5 The rotating shaft 5 is detachably connected to the left crank 7 and the right crank 8.

[0029] Reference Figure 1 、 Figure 3 and Figure 4 The design principle of the present invention is as follows: the present invention only uses one pulley 3 and one flywheel 4 to form a damping mechanism, its structure is simpler, and the installation space of the damping mechanism is also smaller, which not only reduces the installation steps but also reduces the production cost of the exercise bike. The speed ratio of the pulley 3 and the flywheel 4 is 1:9.5, and the weight of the flywheel 4 is two kilograms. When people pedal, they can generate the same torque as the existing damping mechanism.

[0030] The above is only a specific implementation method of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. An X-type fitness bike, characterized by: It includes a front bracket, a rear bracket, a pulley and a flywheel, the front bracket and the rear bracket are connected in an X shape, the front bracket is penetrated by a rotating shaft and a flywheel shaft, the left and right ends of the rotating shaft are respectively provided with a left crank and a right crank, the left crank and the right crank are respectively connected to a left pedal and a right pedal, the pulley is connected to the rotating shaft, the flywheel shaft passes through the flywheel, one end of the flywheel is provided with a belt connecting part, a belt is provided between the pulley and the belt connecting part, a rotatable magnetically controlled resistance device is provided above the flywheel, and the speed ratio of the pulley and the flywheel is 1:9.

5.

2. An X-shaped exercise bike as claimed in claim 1, characterized in that: The front end of the front bracket is connected to a bearing mounting cylinder. Two left-right symmetrical bearings are arranged in the bearing mounting cylinder, and the rotating shaft passes through the two bearings.

3. An X-shaped exercise bike as claimed in claim 1, characterized in that: The rotating shaft is connected to a pulley mounting plate, and the pulley mounting plate is connected to the pulley.

4. An X-shaped exercise bike as claimed in claim 1, characterized in that: The bottom of the front bracket is connected with a left connecting plate and a right connecting plate arranged on the left and right sides, the flywheel is located between the left connecting plate and the right connecting plate, the left connecting plate and the right connecting plate are respectively provided with a left connecting piece and a right connecting piece of the shaft, the flywheel shaft is arranged between the left connecting piece and the right connecting piece of the shaft, and the pulley is located on the left side of the front bracket.

5. The X-shaped exercise bike according to claim 1, characterized in that: The magnetic control resistance device includes an arc-shaped magnet mounting plate and a plurality of magnets arranged on the bottom surface of the magnet mounting plate, and the plurality of magnets are arranged front to back.

6. An X-shaped exercise bike as claimed in claim 5, characterized in that: The magnet mounting plate is rotatably connected to the front bracket.

7. An X-shaped exercise bike as claimed in claim 6, characterized in that: The front bracket is connected to the rear fixing plate, the top surface of the magnet mounting plate is connected to the front fixing plate, the rear end of the magnet mounting plate is hinged to the front bracket, a spring is provided between the front fixing plate and the rear fixing plate, the upper part of the rear bracket is provided with a resistance multi-speed adjuster, the resistance multi-speed adjuster has a pull rope, one end of the pull rope is connected to the front fixing plate, the rear fixing plate is connected to the mounting plate, the front end of the mounting plate is located on the front side of the front fixing plate, and the front end of the mounting plate is provided with a limit rod.

8. The X-shaped exercise bike according to claim 1, wherein: The rear bracket is provided with two first rope pulleys, two second rope pulleys and a rope winding pulley, and the front bracket is provided with two third rope pulleys, and the two first rope pulleys, two second rope pulleys, a rope winding pulley and two third rope pulleys are arranged in sequence from top to bottom, and an elastic rope is wound around the rope winding pulley, and the elastic rope is divided into two sections after passing around the rope winding pulley, and each section of the elastic rope corresponds to a first rope pulley, a second rope pulley and a third rope pulley, and each section of the elastic rope is connected to a pull ring at the end after passing around the corresponding third rope pulley, the second rope pulley and the first rope pulley in sequence.

9. The X-shaped exercise bike according to claim 1, characterized in that: The flywheel weighs two kilograms.

10. The X-shaped exercise bike according to claim 1, characterized in that: The front bracket is provided with a cover shell, and the pulley and the flywheel are located in the cover shell.

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