Step pitch adjusting mechanism of elliptical machine

Abstract

The utility model discloses a step pitch adjusting mechanism of an elliptical machine, which comprises a main frame, two rewinding mechanisms are mounted below the main frame, each rewinding mechanism is provided with a rewinding point capable of moving on a circular track, a connecting pipe is mounted on each rewinding point, and the two connecting pipes are rotationally connected through a connecting plate; one end of the first connecting rod is hinged to the main frame; a pedal is mounted at the top of one end of the second connecting rod, two fixing seats are arranged at the bottom of the second connecting rod, and the other end of the second connecting rod is hinged to the first connecting rod; two tensioning belts are fixedly connected between the fixing seats, a gap is formed between the two tensioning belts, and the connecting pipe is arranged in the gap of the tensioning belts.

Description

Technical Field

[0001] This application relates to the field of elliptical machine technology, and in particular to a step adjustment mechanism for an elliptical machine. Background Technology

[0002] In recent years, with increasing attention to healthy lifestyles, the home and commercial fitness equipment market has experienced rapid growth. Among them, elliptical trainers, as a low-impact, full-body aerobic exercise device, are gaining popularity due to their low joint stress and significant exercise effects.

[0003] Most elliptical trainers on the market currently use a fixed stride length design. However, this design cannot accommodate users of different heights, leg lengths, or athletic abilities. Furthermore, when a user's physical condition does not match the fixed stride length of the elliptical trainer, it can easily cause excessive pressure on the knees, hip joints, and other areas, increasing the risk of sports injuries. Therefore, some elliptical trainers with adjustable stride lengths have been introduced to the market. For example, the elliptical trainer stride length adjustment device and elliptical trainer proposed in announcement number CN210543099U change the stride length by adjusting the screw and threaded adjustment hole. However, this adjustment method can only adjust a few fixed values, which is still not flexible enough. Adjustments are required for different users when they first start using the trainer. Incorrect adjustments may lead to incorrect exercise posture, affecting exercise efficiency and increasing the risk of injury. Therefore, the purpose of this application is to solve the above problems.

[0004] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0005] Based on this, this application provides a step adjustment mechanism for an elliptical machine to solve one of the aforementioned technical problems.

[0006] The technical solution adopted by this application to solve its technical problem is a step adjustment mechanism for an elliptical machine, comprising: a main frame, two winding mechanisms installed below the main frame, each winding mechanism having a winding point that can move on a circular trajectory, a connecting pipe installed at the winding point, and the two connecting pipes being rotatably connected by a connecting plate; a first connecting rod, one end of which is hinged to the main frame; a second connecting rod, one end of which has a pedal installed at the top and two fixed seats provided at the bottom, and the other end of which is hinged to the first connecting rod; two tensioning belts are fixedly connected between the fixed seats, forming a gap between the two tensioning belts, and the connecting pipe is placed in the gap of the tensioning belts.

[0007] In some embodiments, the angle difference between the return points of the two rewinding mechanisms is always maintained at 180°.

[0008] In some embodiments, a swing arm is provided at the hinge point between the first connecting rod and the main frame.

[0009] In some embodiments, one end of the connecting pipe is rotatably disposed at the return point, and a bearing is disposed inside the connecting pipe.

[0010] In some embodiments, the main frame is generally U-shaped, and the first connecting rod is hinged to the inside of the main frame.

[0011] In some embodiments, a control panel is provided on the top of the main frame.

[0012] The beneficial effect of this application is that when the rewinding point of the rewinding mechanism starts to rotate, the connecting tube will start to move in the middle of the two tension belts. The connecting tube drives the tension belt to move, and the force driven by the tension belt on the connecting tube will gradually increase. At this time, the user can adaptively correct and adjust the step distance according to the force applied by the tension belt, which can play the role of stepless adjustment. At the same time, there is no need to manually adjust according to the user's body shape and strength, which greatly improves the flexibility of use. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of this application.

[0015] Figure 2 This is a schematic diagram of the second connecting rod in this application.

[0016] The following are the reference numerals: 1. Main frame; 2. Rewinding mechanism; 21. Connecting pipe; 22. Connecting plate; 3. First connecting rod; 31. Swing arm; 4. Second connecting rod; 41. Pedal; 42. Fixed seat; 43. Tensioning belt; 5. Control panel. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0018] In the embodiments of this application, please refer to Figure 1-2 As shown, this application provides a step adjustment mechanism for an elliptical machine, mainly comprising: a main frame 1, with two winding mechanisms 2 installed below the main frame 1, each winding mechanism 2 having a winding point that can move on a circular trajectory, and a connecting pipe 21 installed at the winding point, the two connecting pipes 21 being rotatably connected by a connecting plate 22; a first connecting rod 3, one end of which is hinged to the main frame 1; a second connecting rod 4, one end of which has a pedal 41 installed at the top and two fixed seats 42 provided at the bottom, the other end of which is hinged to the first connecting rod 3; two tensioning bands 43 are fixedly connected between the fixed seats 42, with a gap formed between the two tensioning bands 43, and the connecting pipe 21 is placed in the gap of the tensioning bands 43.

[0019] Specifically, when the rewinding point of the rewinding mechanism 2 starts to rotate, the connecting tube 21 moves synchronously between the two tension belts 43. The tension belts 43 are subjected to the force of the rotation of the connecting tube 21, and a part of the force is transmitted to the second connecting rod 4. The second connecting rod 4 drives the pedal 41 to start moving. The tension belts 43 can be subjected to different pressures and a portion of them are distributed, so that the step length of the elliptical machine can be adjusted adaptively according to the user's weight and strength.

[0020] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0021] Specifically, in order to ensure that the movement trajectory of the two pedals 41 matches the movement trajectory of the user's legs, the angle difference between the return points of the two rewinding mechanisms 2 is always kept at 180°.

[0022] Preferably, in order to enable the user's hands to swing in a similar manner during use, a swing arm 31 is provided at the hinge point between the first connecting rod 3 and the main frame 1.

[0023] Specifically, one end of the connecting pipe 21 is rotatably mounted at the return point, and a bearing is installed inside the connecting pipe 21. This configuration allows the rotatable connecting pipe 21 to drive the second connecting rod 4 to move more smoothly when rotating at the return point.

[0024] Specifically, the main frame 1 is roughly U-shaped, and the first connecting rod 3 is hinged to the inner side of the main frame 1. The U-shaped main frame 1 can prevent the user from tilting forward.

[0025] Furthermore, a control panel 5 is provided on the top of the main frame 1. Preferably, the control panel 5 can appropriately adjust the rotation speed of the winding point of the winding mechanism 2.

[0026] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A stride length adjustment mechanism for an elliptical machine, comprising: include: The main frame has two winding mechanisms installed below it. Each winding mechanism has a winding point that can move on a circular trajectory. A connecting pipe is installed at the winding point, and the two connecting pipes are rotatably connected by a connecting plate. The first connecting rod has one end hinged to the main frame; The second connecting rod has a pedal installed at the top of one end and two fixed seats at the bottom, and its other end is hinged to the first connecting rod. Two tensioning bands are fixedly connected between the fixed seats, forming a gap between the two tensioning bands, and the connecting tube is placed in the gap of the tensioning bands.

2. The stride length adjustment mechanism of an elliptical machine according to claim 1, wherein, The angle difference between the return points of the two rewinding mechanisms is always maintained at 180°.

3. The stride length adjustment mechanism of claim 1, wherein, A swing arm is provided at the hinge point between the first connecting rod and the main frame.

4. The stride length adjustment mechanism of claim 1, wherein, One end of the connecting pipe is rotatably mounted at the return point, and a bearing is installed inside the connecting pipe.

5. The stride length adjustment mechanism of claim 1, wherein, The main frame is roughly U-shaped, and the first connecting rod is hinged to the inside of the main frame.

6. The stride length adjustment mechanism of claim 1, wherein, A control panel is located on the top of the main frame.

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