Step adjusting mechanism for elliptical exercise machine

Abstract

The application discloses a step adjusting mechanism of a self-generating elliptical machine, which comprises a base frame, an abutting assembly arranged above one end of the base frame, at least two abutting columns, a main frame installed above one end of the main frame, a first connecting rod hingedly connected to two ends of the main frame and having a handrail extended from one end of the first connecting rod, a second connecting rod hingedly connected to one end of the first connecting rod and having a pedal installed at the other end, an adjusting device movably arranged in the second connecting rod, a third connecting rod provided with a rolling part at one end, the rolling part abutting above the abutting columns and being movable along the length direction of the rolling part, a first connecting part arranged on the side of the third connecting rod close to the second connecting rod, and the adjusting device at least partially extending out of the second connecting rod to be rotationally connected with the first connecting part.

Description

Technical Field

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

[0002] The elliptical trainer is a comprehensive training machine that combines the movements of running, exercise bikes, steppers, and stair climbers. It is particularly suitable for beginners or people who are overweight or have a history of lower limb joint injuries. Currently, the energy generated by rotating the pedals and wheels on an elliptical trainer is largely wasted and not effectively utilized. Furthermore, elliptical trainers are primarily powered by an external power source, and other components such as the electronic display also consume a significant amount of electricity.

[0003] Based on this, as proposed in CN102886118B, a self-generating elliptical trainer converts the kinetic energy generated during exercise into electrical energy for the trainer itself or external devices. However, this cannot meet the specific needs of some users, such as those requiring incline / descent or adjustable stride length. While elliptical trainers on the market offer adjustable stride length or incline, most require manual operation and have a limited adjustment range, unable to simultaneously adjust stride length and incline. Therefore, the purpose of this application is to solve the aforementioned 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 a self-generating 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 a self-generating elliptical machine, comprising: a base frame, with an abutment assembly disposed above one end of the base frame, the abutment assembly including at least two abutment posts; a main frame, installed above one end of the main frame; a first connecting rod, one end of which is hinged to both ends of the main frame and has a handrail extending from this end; a second connecting rod, one end of which is hinged to one end of the first connecting rod, and the other end of which is equipped with a pedal, the second connecting rod having an adjustment device movably disposed therein; and a third connecting rod, one end of which is provided with a rolling part, the rolling part abutting above the abutment posts and... The device is capable of moving along the length of the rolling part. A first connecting part is provided on the side of the third connecting rod near the second connecting rod. At least a portion of the adjusting device extends out of the second connecting rod to be rotatably connected to the first connecting part. A drive wheel is mounted on the main frame. The other end of the third connecting rod, where the rolling part is located, is mounted on the drive wheel. The third connecting rod can drive the drive wheel to rotate. An inertia wheel is connected to the drive wheel, and the drive wheel can drive the inertia wheel to rotate. A power generation structure is mounted on the main frame, and the power generation structure generates electricity through the rotation of the inertia wheel.

[0007] In some embodiments, the adjusting device includes a second connecting part, a slider, a motor, and a lead screw. The output shaft of the motor is connected to the lead screw, the slider is threadedly connected to the lead screw, the second connecting part is installed on one side of the slider and extends out of the second connecting rod, and the power generation structure is electrically connected to the motor.

[0008] In some embodiments, a groove is provided on one side of the second connecting rod, and the second connecting part can slide within the groove.

[0009] In some embodiments, the abutment assembly is rotatably disposed above the base frame, and a V-shaped frame is rotatably disposed above the base frame. A connector is hinged to the abutment assembly to be hinged to one end of the V-shaped frame.

[0010] In some embodiments, a push rod is rotatably disposed above the base frame, and the output shaft of the push rod is hinged to one end of the V-shaped frame.

[0011] In some embodiments, the outline of the third connecting rod is generally arc-shaped.

[0012] The beneficial effects of this application are as follows: by changing the relative position of the second connecting part in the slide groove through the motor and the lead screw, the hinge point between the second connecting rod and the third connecting rod is changed, thereby adjusting the step distance. In addition, the rotatable abutment component on the base frame can be used in conjunction with the adjustment device, which can make the movement trajectory of the pedal more adjustable or the slope adjusted. 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 abutment component of this application.

[0016] Figure 3 This is a schematic diagram of the connection between the second connecting rod and the third connecting rod of this application.

[0017] Figure 4 This is a schematic diagram of the adjustment device of this application.

[0018] Explanation of reference numerals: 1. Base frame; 11. Abutment assembly; 111. Abutment column; 112. Connector; 12. V-shaped frame; 13. Push rod; 2. Main frame; 3. First connecting rod; 31. Handrail; 4. Second connecting rod; 41. Adjustment device; 411. Second connecting part; 412. Slider; 413. Motor; 414. Lead screw; 42. Pedal; 43. Slide groove; 5. Third connecting rod; 51. Rolling part; 52. First connecting part; 6. Drive wheel; 7. Inertia wheel; 8. Power generation structure. Detailed Implementation

[0019] 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.

[0020] In the embodiments of this application, please refer to Figure 1-4As shown, this application provides a step adjustment mechanism for a self-generating elliptical machine, mainly comprising: a base frame 1, with an abutment component 11 disposed above one end of the base frame 1, the abutment component 11 including at least two abutment posts 111; a main frame 2, mounted above one end of the main frame 2; a first connecting rod 3, one end of which is hinged to both ends of the main frame 2 and a handrail 31 extends from this end; a second connecting rod 4, one end of which is hinged to one end of the first connecting rod 3, and a pedal 42 is mounted on the other end, the second connecting rod 4 having an adjustment device 41 movably disposed inside; and a third connecting rod 5, one end of which is provided with a rolling part 51, the rolling part 51 abutting above the abutment posts 111 and capable of moving along... Moving along the length direction of the rolling part 51, the third connecting rod 5 is provided with a first connecting part 52 on the side near the second connecting rod 4, and at least a portion of the adjusting device 41 extends out of the second connecting rod 4 to be rotatably connected to the first connecting part 52; the driving wheel 6 is provided on the main frame 2, and the other end of the third connecting rod 5, which is provided with the rolling part 51, is mounted on the driving wheel 6, and the third connecting rod 5 can drive the driving wheel 6 to rotate by rotation; the inertia wheel 7 is connected to the driving wheel 6, and the driving wheel 6 can drive the inertia wheel 7 to rotate; the power generation structure 8 is provided on the main frame 2, and the power generation structure 8 generates electricity by rotating the inertia wheel 7.

[0021] Specifically, when a user uses the elliptical machine, they place their feet on the pedal 42 and drive the second connecting rod 4 to move. The movement of the second connecting rod 4 will link the first connecting rod 3 and the third connecting rod, causing the drive wheel 6 to rotate. The rolling part 51 will roll back and forth on the abutment post 111. The adjustment device 41 can change the hinge point between the second connecting rod 4 and the third connecting rod 5, thereby reducing the step distance.

[0022] For illustrative purposes, how the drive wheel 6 and the inertial wheel 7 generate electricity for the power generation structure 8 can be referred to the publication number proposed by the applicant, specifically the cycling training vehicle and its application proposed by the applicant, CN202411423084.X. Since the power generation principle is not closely related to the problem solved by this application, it will not be elaborated further.

[0023] 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.

[0024] Reference Figure 4As shown, the adjustment device 41 includes a second connecting part 411, a slider 412, a motor 413, and a lead screw 414. The output shaft of the motor 413 is connected to the lead screw 414. The slider 412 is threadedly connected to the lead screw 414. The second connecting part 411 is installed on one side of the slider 412 and extends out of the second connecting rod 4. The power generation structure 8 is electrically connected to the motor 413. The combination of the lead screw 414 and the motor 413 can ensure that the movement of the slider 412 is stable and continuous, preventing large changes from causing damage to the mechanism.

[0025] Reference Figure 3 As shown, a groove 43 is provided on one side of the second connecting rod 4, and the second connecting part 411 can slide in the groove 43. The groove 43 provides space for the second connecting part 411 to change the hinge point. As a supplement, the coverage range of the thread on the lead screw 414 needs to be greater than or equal to the length of the groove 43, and the lead screw 414 needs to be a bidirectional lead screw 414 or a bidirectional motor 413 can be directly used.

[0026] Reference Figure 2 As shown, the abutment assembly 11 is rotatably mounted above the base frame 1. A V-shaped frame 12 is rotatably mounted above the base frame 1. A connector 112 is hinged to the abutment assembly 11 to one end of the V-shaped frame 12. A push rod 13 is rotatably mounted above the base frame 1, and the output shaft of the push rod 13 is hinged to one end of the V-shaped frame 12. When the push rod 13 is driven outward, the V-shaped frame 12 rotates and links with the connector 112 until the connector 112 and this end of the V-shaped frame 12 are in a straight line. When the push rod 13 continues to be driven outward, the abutment assembly 11 is lifted by the connector 112, forming a slope. When the push rod 13 is driven to the outermost end, the push rod 13 is also formed at a certain angle. Therefore, it needs to be rotatably connected to the base frame 1. The abutment assembly 11 can cooperate with the adjustment device 41 to prevent excessive hinge point switching from causing deformation of the pedal 42 angle.

[0027] Specifically, the outline of the third connecting rod 5 is roughly arc-shaped. When the second connecting rod 4 is driven, the arc-shaped outline can optimize the motion trajectory and prevent bad motion habits.

[0028] 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.

[0029] 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 step adjustment mechanism for a self-generating elliptical trainer, characterized in that, include: A base frame, wherein an abutment component is provided above one end of the base frame, and the abutment component includes at least two abutment posts; The main frame is installed above one end of the main frame; The first connecting rod has one end hinged to both ends of the main frame and a handrail extending from this end; The second connecting rod has one end hinged to one end of the first connecting rod and the other end equipped with a pedal. An adjustment device is movably provided inside the second connecting rod. The third connecting rod has a rolling part at one end, which abuts against the upper part of the abutting post and can move along the length direction of the rolling part. The third connecting rod has a first connecting part on the side near the second connecting rod. At least a part of the adjusting device extends out of the second connecting rod to be rotatably connected with the first connecting part. A drive wheel is mounted on the main frame, and the other end of the third connecting rod of the rolling part is mounted on the drive wheel. The third connecting rod can drive the drive wheel to rotate by rotation. An inertial wheel is connected to the driving wheel, and the driving wheel can drive the inertial wheel to rotate; A power generation structure is mounted on the main frame, and the power generation structure generates electricity through the rotation of the inertial wheel.

2. The step adjustment mechanism of the self-generating elliptical machine according to claim 1, characterized in that, The adjusting device includes a second connecting part, a slider, a motor, and a lead screw. The output shaft of the motor is connected to the lead screw, the slider is threadedly connected to the lead screw, the second connecting part is installed on one side of the slider and extends out of the second connecting rod, and the power generation structure is electrically connected to the motor.

3. The step adjustment mechanism of the self-generating elliptical machine according to claim 2, characterized in that, A groove is provided on one side of the second connecting rod, and the second connecting part can slide within the groove.

4. The step adjustment mechanism of the self-generating elliptical machine according to claim 1, characterized in that, The abutting component is rotatably disposed above the base frame, and a V-shaped frame is rotatably disposed above the base frame. A connector is hinged to the abutting component to be hinged to one end of the V-shaped frame.

5. The step adjustment mechanism of the self-generating elliptical machine according to claim 4, characterized in that, A push rod is rotatably mounted above the base frame, and the output shaft of the push rod is hinged to one end of the V-shaped frame.

6. The step adjustment mechanism of the self-generating elliptical machine according to claim 1, characterized in that, The outline of the third connecting rod is roughly arc-shaped.

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