A cushioning mechanism for an elliptical exercise machine

Abstract

The utility model relates to the technical field of body -building elliptical machine, and disclose a kind of buffer mechanism for body -building elliptical machine, including main frame, the bottom end fixed mounting of main frame has underframe, the inside rotation of main frame is installed with runner, the outside surface rotation of both sides of main frame is installed with carousel, and carousel side surface is fixedly connected with runner;Flywheel, it is set in the inside of main frame, the transmission belt of runner is transmission connection with flywheel by surface sleeve setting, the inside of main frame is located in the side of flywheel and is provided with magnetic resistance frame. By magnet on magnetic resistance frame near flywheel magnetic field enhancement, resistance increases;When far, magnetic field weakens, resistance reduces, and magnetic resistance frame is driven second gear shaft by starting motor, then by second gear shaft first gear shaft is driven to adjust control, second gear shaft specification is less than first gear shaft, when driving adjustment, the adjustment range of magnetic resistance frame is smaller, more accurate.

Description

Technical Field

[0001] This utility model relates to the field of elliptical trainer technology, specifically a buffer mechanism for elliptical trainers. Background Technology

[0002] Elliptical trainers are a very common tool for cardiovascular fitness training. The exercise pattern of elliptical trainers is similar to that of cross-country skiing. Although elliptical trainers have only been designed for a short time, they have developed rapidly due to their popularity.

[0003] For example, Chinese patent CN2892180Y discloses an elliptical exercise machine, which belongs to the category of fitness equipment. It includes a base, frame and column, handlebars, swing shaft, two left and right handrails, U-shaped bearing seats, left and right pivots, main shaft, flywheel, two left and right cranks, and a left and right foot pedal elliptical motion mechanism. The left and right foot pedal elliptical motion mechanism includes a foot pedal rod mounted on the pivot with a hole at its end, a guide wheel rail fixed to the rear end of the foot pedal rod, a rear axle fixed behind the guide wheel rail, a rocker arm mounted on the rear axle with a bearing at its rear end, a small axle mounted in a shaft hole at the front end of the rocker arm, a rotary arm mounted on the small axle with a shaft hole, a wheel axle mounted on the rotary arm with a bearing, and a guide wheel mounted on the wheel axle with a bearing. The guide wheel is installed between the guide wheel rails, and the other end of the wheel axle is installed in a shaft hole at the end of the crank. It conforms to the principles of human physiology and ergonomics, has a simple structure, flexible movement, low production cost, and a novel design. It can be widely used in homes, hotels, schools and other places. However, traditional elliptical machines control the speed according to the strength exerted by the exerciser. When the training intensity increases too quickly, there is no relevant cushioning mechanism. When stopping, there will be a large obstruction, which can easily lead to joint injuries. Therefore, a cushioning mechanism for fitness elliptical machines is proposed to solve the above problems. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a buffer mechanism for fitness elliptical machines, which enhances safety through a buffer structure and solves the problem of low safety in traditional designs.

[0005] (II) Technical Solution To achieve the aforementioned goal of increasing safety, this utility model provides the following technical solution: a buffer mechanism for an elliptical trainer, comprising: The main frame has a base frame fixedly installed at its bottom end, a rotating wheel rotatably installed inside the main frame, and turntables rotatably installed on the outer surfaces of both sides of the main frame, with one outer surface of the turntable fixedly connected to the rotating wheel. The flywheel is located inside the main frame. The rotating wheel is connected to the flywheel via a transmission belt fitted on its outer surface. A magnetic resistance frame is located inside the main frame on one side of the flywheel. An adjustment component for the angle of the magnetic resistance frame is located at the bottom of the magnetic resistance frame.

[0006] Preferably, the main frame is provided with rocker arms on both sides, the outer surface of the rocker arms is fixedly mounted with pedals, the top of the rocker arms is fixedly connected with a grip bar, and one end of the rocker arms is connected to the outer surface of the turntable. When exercising, the rocker arms on both sides can be driven by stepping on the pedals, thereby driving the turntable to rotate through the rocker arms, and the turntable drives the internal rotating wheel to rotate.

[0007] Preferably, a brake plate is installed at the top of the main frame on one side of the flywheel. When an emergency stop is required, one end of the brake plate can be pulled to cause the other end of the brake plate to rub against the flywheel and slow down.

[0008] Preferably, the magnetic reluctance frame has an arc-shaped structure, and several magnets are fixedly installed on the inner wall of the magnetic reluctance frame. When the magnets on the magnetic reluctance frame are close to the flywheel, the magnetic field is enhanced and the resistance is increased; when they are far away, the magnetic field is weakened and the resistance is reduced.

[0009] Preferably, the adjustment assembly includes a mounting bracket fixedly installed at the bottom of the inner wall of the main frame, a connecting bracket rotatably installed inside the mounting bracket, the bottom end of the magnetic resistance frame being fixedly connected to the connecting bracket, and the magnetic resistance frame driving a second gear shaft via a starter motor, which in turn drives a first gear shaft for adjustment and control.

[0010] Preferably, a first gear shaft is fixedly installed inside the connecting frame, and a second gear shaft is rotatably installed inside the mounting frame below the first gear shaft, with the first gear shaft and the second gear shaft meshing together. A motor is fixedly installed on one outer surface of the mounting frame, and one end of the motor's output shaft is fixedly connected to one end of the second gear shaft. The second gear shaft is smaller than the first gear shaft, so that the adjustment range of the magnetic resistance frame is smaller and more precise when driving and adjusting.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a buffer mechanism for an elliptical trainer, which has the following beneficial effects: When the magnets on the magnetic resistance frame approach the flywheel, the magnetic field strengthens, increasing resistance; when they move away, the magnetic field weakens, reducing resistance. The magnetic resistance frame, through the starter motor, drives the second gear shaft, which in turn drives the first gear shaft for adjustment and control. The second gear shaft is smaller than the first gear shaft, allowing for smaller and more precise adjustments to the magnetic resistance frame. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a diagram of the internal structure of the main frame of this utility model; Figure 3 This is a schematic diagram of the flywheel structure installation of this utility model; Figure 4 This is a schematic diagram of the mounting bracket structure of this utility model.

[0013] In the diagram: 1. Main frame; 11. Base frame; 12. Turntable; 13. Cradle; 131. Pedal; 14. Grip bar; 15. Rotary wheel; 16. Drive belt; 2. Flywheel; 21. Magnetic resistance frame; 22. Brake plate; 23. Magnet; 24. Mounting bracket; 25. Connecting bracket; 26. First gear shaft; 27. Second gear shaft; 28. Motor. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 The present invention provides the following technical solution: a buffer mechanism for a fitness elliptical machine, including a main frame 1, a base frame 11 fixedly installed at the bottom end of the main frame 1, a rotating wheel 15 rotatably installed inside the main frame 1, and a turntable 12 rotatably installed on the outer surfaces of both sides of the main frame 1, and one outer surface of the turntable 12 is fixedly connected to the rotating wheel 15. In this embodiment, cradles 13 are provided on both sides of the main frame 1. A pedal 131 is fixedly installed on the outer surface of the cradle 13. A grip bar 14 is fixedly connected to the top of the cradle 13. One end of the cradle 13 is connected to the outer surface of the turntable 12. When exercising, the cradles 13 on both sides can be driven by stepping on the pedal 131, thereby driving the turntable 12 to rotate through the cradles 13. The turntable 12 drives the internal rotating wheel 15 to rotate.

[0016] The main frame 1 has a brake plate 22 installed at the top of its interior on one side of the flywheel 2. When an emergency stop is required, one end of the brake plate 22 can be pulled to cause the other end of the brake plate 22 to rub against the flywheel and slow down.

[0017] In this embodiment, the flywheel 2 is located inside the main frame 1. The rotating wheel 15 is connected to the flywheel 2 via a transmission belt 16 sleeved on its outer surface. A magnetic resistance frame 21 is located inside the main frame 1 on one side of the flywheel 2. An adjustment component for the angle of the magnetic resistance frame 21 is provided at the bottom of the magnetic resistance frame 21.

[0018] The magnetic reluctance frame 21 has an arc-shaped structure, and several magnets 23 are fixedly installed on the inner wall of the magnetic reluctance frame 21. When the magnets 23 on the magnetic reluctance frame 21 are close to the flywheel, the magnetic field is enhanced and the resistance is increased; when they are far away, the magnetic field is weakened and the resistance is reduced.

[0019] In this embodiment, the adjustment component includes a mounting bracket 24 fixedly installed at the bottom of the inner wall of the main frame 1. A connecting bracket 25 is rotatably installed inside the mounting bracket 24. The bottom end of the magnetic resistance frame 21 is fixedly connected to the connecting bracket 25. The magnetic resistance frame 21 drives the second gear shaft 27 through the starting motor 28, and then the second gear shaft 27 drives the first gear shaft 26 for adjustment and control.

[0020] The connecting frame 25 has a first gear shaft 26 fixedly installed inside, and the mounting frame 24 has a second gear shaft 27 rotatably installed inside below the first gear shaft 26, with the first gear shaft 26 and the second gear shaft 27 meshing together. A motor 28 is fixedly installed on one outer surface of the mounting frame 24, and one end of the output shaft of the motor 28 is fixedly connected to one end of the second gear shaft 27. The second gear shaft 27 is smaller than the first gear shaft 26, so that the adjustment range of the magnetic resistance frame 21 is smaller and more precise when it is driven for adjustment.

[0021] The working principle of this embodiment is as follows: When exercising, the pedal 131 can be stepped on to drive the two rocker arms 13, which in turn drive the turntable 12 to rotate. The turntable 12 drives the internal rotating wheel 15 to rotate. The rotating wheel 15 drives the flywheel 2 to rotate through the transmission belt 16. When an emergency stop is needed, one end of the brake plate 22 can be pulled to make the other end of the brake plate 22 rub against the flywheel to slow down. When the magnet 23 on the magnetic resistance frame 21 is close to the flywheel, the magnetic field is enhanced, and the resistance increases; when it is far away, the magnetic field is weakened, and the resistance decreases. The magnetic resistance frame 21 drives the second gear shaft 27 through the starter motor 28, and then the second gear shaft 27 drives the first gear shaft 26 for adjustment and control. The second gear shaft 27 is smaller than the first gear shaft 26, so when driving and adjusting, the adjustment range of the magnetic resistance frame 21 is smaller and more precise.

[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A buffer mechanism for an elliptical trainer, characterized in that, include: The main frame (1) has a base frame (11) fixedly installed at the bottom end of the main frame (1), a rotating wheel (15) is rotatably installed inside the main frame (1), and a turntable (12) is rotatably installed on the outer surfaces of both sides of the main frame (1), and one side of the outer surface of the turntable (12) is fixedly connected to the rotating wheel (15). The flywheel (2) is located inside the main frame (1). The rotating wheel (15) is connected to the flywheel (2) via a transmission belt (16) fitted on its outer surface. A magnetic resistance frame (21) is located inside the main frame (1) on one side of the flywheel (2). An adjustment component for the angle of the magnetic resistance frame (21) is provided at the bottom of the magnetic resistance frame (21).

2. The buffer mechanism for an elliptical trainer according to claim 1, characterized in that: The main frame (1) is provided with a rocker arm (13) on both sides. A pedal (131) is fixedly installed on the outer surface of the rocker arm (13). A handle (14) is fixedly connected to the top of the rocker arm (13), and one end of the rocker arm (13) is connected to the outer surface of the turntable (12).

3. The buffer mechanism for an elliptical trainer according to claim 1, characterized in that: A brake plate (22) is installed at the top of the inside of the main frame (1) on one side of the flywheel (2).

4. The buffer mechanism for an elliptical trainer according to claim 1, characterized in that: The magnetic reluctance frame (21) has an arc-shaped structure, and several magnets (23) are fixedly installed on the inner wall of the magnetic reluctance frame (21).

5. A buffer mechanism for an elliptical trainer according to claim 4, characterized in that: The adjustment assembly includes a mounting bracket (24) fixedly installed on the bottom of the inner wall of the main frame (1), and a connecting bracket (25) is rotatably installed inside the mounting bracket (24). The bottom of the magnetic resistance frame (21) is fixedly connected to the connecting bracket (25).

6. A buffer mechanism for an elliptical trainer according to claim 5, characterized in that: The first gear shaft (26) is fixedly installed inside the connecting frame (25). The second gear shaft (27) is rotatably installed inside the mounting frame (24) below the first gear shaft (26). The first gear shaft (26) and the second gear shaft (27) are meshed and connected. A motor (28) is fixedly installed on one side of the outer surface of the mounting frame (24). One end of the output shaft of the motor (28) is fixedly connected to one end of the second gear shaft (27).

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