阅读说明：本技术 一种椭圆机步距调节装置 (Elliptical machine step pitch adjusting device ) 是由 付常喜 刘娜 朱政 马文超 于 2021-07-12 设计创作，主要内容包括：本申请公开了一种椭圆机步距调节装置,属于椭圆机技术领域,包括主架、立架、飞轮结构以及两组摇杆组件。飞轮结构和立架分别位于主架的两端。两组摇杆组件并列设置,每组摇杆组件包括第一活动杆、第二活动杆、第三活动杆、步距调节杆和踏板。第一活动杆的两端分别与飞轮结构和踏板连接,步距调节杆的第一端与踏板滑动连接,步距调节杆的第二端与主架滑动连接,第三活动杆与主架转动连接,第二活动杆的第一端与第一活动杆转动连接,第二活动杆的第二端与第三活动杆转动连接。本发明公开的椭圆机步距调节装置利用步距调节杆与踏板之间滑动,来改变第一活动杆与步距调节杆之间的距离,从而改变踏板的运行轨迹和步距,使之能够适合多数人的使用。(The application discloses ellipse machine step adjusting device belongs to ellipse machine technical field, including body frame, grudging post, flywheel structure and two sets of rocker assemblies. The flywheel structure and the vertical frame are respectively positioned at two ends of the main frame. Two groups of rocker assemblies are arranged in parallel, and each group of rocker assemblies comprises a first movable rod, a second movable rod, a third movable rod, a step pitch adjusting rod and a pedal. The two ends of the first movable rod are respectively connected with the flywheel structure and the pedal, the first end of the step adjusting rod is connected with the pedal in a sliding mode, the second end of the step adjusting rod is connected with the main frame in a sliding mode, the third movable rod is connected with the main frame in a rotating mode, the first end of the second movable rod is connected with the first movable rod in a rotating mode, and the second end of the second movable rod is connected with the third movable rod in a rotating mode. The step pitch adjusting device of the elliptical machine disclosed by the invention changes the distance between the first movable rod and the step pitch adjusting rod by utilizing the sliding between the step pitch adjusting rod and the pedal, thereby changing the running track and the step pitch of the pedal and enabling the step pitch adjusting device to be suitable for most people.)

1. An elliptical machine step adjustment device, comprising:

a main frame;

the vertical frame is arranged on the main frame;

a flywheel structure mounted to the main frame; and

two sets of rocker assemblies, it is two sets of rocker assembly sets up side by side, every group the rocker assembly all includes first movable rod, second movable rod, third movable rod, stride adjusting lever and footboard, the first end of first movable rod connect in the flywheel structure, the second end of first movable rod with the footboard is connected, the first end of stride adjusting lever with footboard sliding connection, the second end of stride adjusting lever with body frame sliding connection, the third movable rod with the body frame rotates to be connected, the first end of second movable rod with first movable rod rotates to be connected, the second end of second movable rod with the third movable rod rotates to be connected.

2. The elliptical machine stride adjustment apparatus of claim 1, further comprising a control assembly, the control assembly comprising:

the motor is arranged in the pedal;

the motor is in driving connection with the screw rod; and

the sliding block is fixedly connected with the first end of the step adjusting rod, the sliding block is connected with the pedal in a sliding mode, and the sliding block is connected with the lead screw in a threaded mode.

3. The elliptical machine step adjusting device according to claim 2, wherein a first sliding groove is formed in the pedal, the extending direction of the first sliding groove is parallel to the first movable rod, a second sliding groove is formed in the main frame, the second sliding groove is arc-shaped, a first end of the step adjusting rod is clamped in the first sliding groove, and a second end of the step adjusting rod is clamped in the second sliding groove.

4. The elliptical machine step adjustment device of claim 3, wherein the slider includes:

the first block is in threaded connection with the screw rod; and

the second block is rotatably connected with the first block, the rotating axis of the second block is perpendicular to the axis of the screw rod, and the second block is connected with the step adjusting rod.

5. The elliptical machine stride adjustment apparatus of claim 4, wherein the control assembly further comprises:

the first bevel gear is in rotary connection with the first block, the first bevel gear is in threaded connection with the screw rod, and the screw pitch of the first bevel gear is larger than that of the first block; and

the second bevel gear is connected with the second block and meshed with the first bevel gear.

6. The elliptical machine step pitch adjustment device defined in claim 5, wherein at least one of the first bevel gear and the second bevel gear is an incomplete gear and the teeth are distributed with a central angle of less than 15 degrees.

7. The elliptical machine step adjustment device defined in claim 5, wherein the axes of the first and second bevel gears are disposed vertically.

8. The elliptical machine step adjustment device of claim 2, wherein the motors in both sets of rocker assemblies operate in synchronization.

9. The elliptical machine step distance adjusting device according to any one of claims 1 to 8, characterized in that the third movable rod comprises a first rod, a second rod and a third rod, the first rod and the third rod are respectively located at two ends of the second rod, the first rod and the third rod are arranged in parallel, one end of the third rod, which is far away from the second rod, is rotatably connected with the second movable rod, and the joint of the third rod and the second rod is rotatably connected with the stand.

10. The elliptical machine step adjustment device of any one of claims 1 to 8, characterized in that the flywheel structure is located behind the main frame.

Technical Field

The invention relates to the technical field of elliptical machines, in particular to a step pitch adjusting device of an elliptical machine.

Background

Among a variety of sports equipment, a treadmill, a climbing machine, a body-building vehicle, an elliptical machine, etc. are classified according to the position of a user. Wherein, the elliptical machine follows the elliptical motion trail, and helps the user to train physical ability.

According to different conditions of users, the step pitch of each user is different, particularly in a gymnasium or a stadium, users of the elliptical machine are various, the step pitch of the existing elliptical machine is fixed, and the same elliptical machine cannot be used by most users.

Disclosure of Invention

The invention discloses a step pitch adjusting device of an elliptical machine, which aims to solve the problems.

The technical scheme adopted by the invention for solving the technical problems is as follows:

based on the above purpose, the invention discloses a step pitch adjusting device of an elliptical machine, comprising:

a main frame;

the vertical frame is arranged on the main frame;

a flywheel structure mounted to the main frame; and

two sets of rocker assemblies, it is two sets of rocker assembly sets up side by side, every group the rocker assembly all includes first movable rod, second movable rod, third movable rod, stride adjusting lever and footboard, the first end of first movable rod connect in the flywheel structure, the second end of first movable rod with the footboard is connected, the first end of stride adjusting lever with footboard sliding connection, the second end of stride adjusting lever with body frame sliding connection, the third movable rod with the body frame rotates to be connected, the first end of second movable rod with first movable rod rotates to be connected, the second end of second movable rod with the third movable rod rotates to be connected.

Optionally: the elliptical machine step distance adjusting device further comprises a control assembly, and the control assembly comprises:

the motor is arranged in the pedal;

the motor is in driving connection with the screw rod; and

the sliding block is fixedly connected with the first end of the step adjusting rod, the sliding block is connected with the pedal in a sliding mode, and the sliding block is connected with the lead screw in a threaded mode.

Optionally: be provided with first spout on the footboard, the extending direction of first spout with first movable rod is parallel, be provided with the second spout on the body frame, the second spout is the arc, the first end joint of stride adjusting lever in the first spout, the second end joint of stride adjusting lever in the second spout.

Optionally: the slider includes:

the first block is in threaded connection with the screw rod; and

the second block is rotatably connected with the first block, the rotating axis of the second block is perpendicular to the axis of the screw rod, and the second block is connected with the step adjusting rod.

Optionally: the control assembly further comprises:

the first bevel gear is in rotary connection with the first block, the first bevel gear is in threaded connection with the screw rod, and the screw pitch of the first bevel gear is larger than that of the first block; and

the second bevel gear is connected with the second block and meshed with the first bevel gear.

Optionally: at least one of the first bevel gear and the second bevel gear is an incomplete gear, and the distribution central angle of teeth of the incomplete gear is less than 15 degrees.

Optionally: the axes of the first bevel gear and the second bevel gear are vertically arranged.

Optionally: and the motors in the two groups of rocker assemblies work synchronously.

Optionally: the third movable rod comprises a first rod, a second rod and a third rod, the first rod and the third rod are respectively located at two ends of the second rod, the first rod is parallel to the third rod, the third rod deviates from one end of the second rod and is rotatably connected with the second movable rod, and the third rod is rotatably connected with the vertical frame at the joint of the second rod.

Optionally: the flywheel structure is positioned behind the main frame.

Compared with the prior art, the invention has the following beneficial effects:

the step pitch adjusting device of the elliptical machine disclosed by the invention changes the distance between the first movable rod and the step pitch adjusting rod by utilizing the sliding between the step pitch adjusting rod and the pedal, thereby changing the running track and the step pitch of the pedal and enabling the step pitch adjusting device to be suitable for most people.

Specifically, when the step adjustment lever moves toward the first movable lever along the pedal, the distance between the step adjustment lever and the first movable lever decreases, and the step of the pedal increases at this time; when the step adjusting rod moves along the direction of the pedal departing from the first movable rod, the distance between the step adjusting rod and the first movable rod is increased, and the step of the pedal is reduced at the moment.

Drawings

In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments are briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram of an elliptical machine step adjustment apparatus as disclosed in an embodiment of the present invention;

FIG. 2 is a schematic view of a main frame and a stand coupled together according to an embodiment of the present disclosure;

FIG. 3 illustrates a cross-sectional view of a step adjustment lever and a pedal coupled together from a first perspective in accordance with an embodiment of the present invention;

FIG. 4 shows a cross-sectional view of a connection of a first bevel gear and a second bevel gear at a second viewing angle, in accordance with an embodiment of the present disclosure;

FIG. 5 illustrates a schematic view of a third movable bar disclosed in an embodiment of the present invention.

In the figure:

100-the main frame; 110-a second runner; 200-erecting a frame; 300-flywheel configuration; 400-a rocker assembly; 410-a first movable bar; 420-a second movable bar; 430-a third movable bar; 431-a first rod; 432-a second rod; 433-a third rod; 440-step adjustment lever; 450-a pedal; (ii) a 451-a first runner; 500-an operation screen; 600-a control component; 610-a motor; 620-screw mandrel; 630-a slider; 631-first block; 632-second block; 640-a first bevel gear; 650-second bevel gear.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as disclosed in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that the indication of the orientation or the positional relationship is based on the orientation or the positional relationship shown in the drawings, or the orientation or the positional relationship which is usually laid out when the product of the application is used, or the orientation or the positional relationship which is conventionally understood by those skilled in the art, or the orientation or the positional relationship which is usually laid out when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be configured and operated in a specific orientation, and thus cannot be understood as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present application, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be interpreted broadly, e.g., as either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example (b):

referring to fig. 1 to 5, an embodiment of the invention discloses a step pitch adjusting device for an elliptical machine, which includes a main frame 100, a vertical frame 200, a flywheel structure 300 and two sets of rocker assemblies 400.

The main frame 100 is horizontally disposed, and the vertical frame 200 is substantially vertical. The stand 200 is provided with an operation screen 500, and the step distance can be directly adjusted on the operation screen 500. The flywheel structures 300 and the vertical frames 200 are respectively positioned at two ends of the main frame 100. The two rocker assemblies 400 are arranged in parallel and are respectively positioned on two sides of the stand 200. Each set of rocker assemblies 400 includes a first movable bar 410, a second movable bar 420, a third movable bar 430, a step adjustment bar 440, and a pedal 450. The first end of the first movable rod 410 is connected to the flywheel structure 300, the second end of the first movable rod 410 is connected to the pedal 450, the first end of the step pitch adjusting rod 440 is slidably connected to the pedal 450, the second end of the step pitch adjusting rod 440 is slidably connected to the main frame 100, the third movable rod 430 is rotatably connected to the main frame 100, the first end of the second movable rod 420 is rotatably connected to the first movable rod 410, and the second end of the second movable rod 420 is rotatably connected to the third movable rod 430.

The elliptical machine step distance adjusting device disclosed in the present embodiment changes the distance between the first movable bar 410 and the step distance adjusting bar 440 by sliding the step distance adjusting bar 440 and the step plate 450, thereby changing the running track and step distance of the step plate 450, which can be suitable for most people.

Specifically, when the step adjustment lever 440 moves toward the first movable bar 410 along the pedal 450, the distance between the step adjustment lever 440 and the first movable bar 410 decreases, and the step of the pedal 450 increases at this time; when the step adjustment lever 440 is moved in a direction away from the first movable bar 410 along the pedal 450, the distance between the step adjustment lever 440 and the first movable bar 410 is increased, and at this time, the step of the pedal 450 is decreased.

The elliptical machine step distance adjusting device disclosed in the present embodiment further comprises a control assembly 600, and the control assembly 600 is mainly used for controlling the position of the step distance adjusting rod 440. The control assembly 600 includes a motor 610, a lead screw 620, a slider 630, a first bevel gear 640, and a second bevel gear 650.

The motors 610 are mounted in the pedals 450 and the two motors 610 in the two sets of rocker assemblies 400 are operated in synchronism so that the pitch of the two pedals 450 can be adjusted synchronously. In this embodiment, the pedal 450 is configured as a hollow structure to accommodate the motor 610, meanwhile, a first sliding groove 451 is further disposed in the pedal 450, the first sliding groove 451 is communicated with the hollow structure, the motor 610 is mounted in the hollow structure, and the screw 620, the sliding block 630 and the step adjustment rod 440 are all located in the first sliding groove 451. The motor 610 is connected with the screw 620 in a driving mode, the screw 620 is in threaded connection with the sliding block 630, the sliding block 630 and the cross section are not circular, and when the motor 610 drives the screw 620 to rotate, the sliding block 630 can be driven to slide relative to the pedal 450 along the first sliding groove 451. The sliding block 630 is fixedly connected with the step adjusting rod 440, and when the sliding block 630 moves, the step adjusting rod 440 can be driven to move together, so that the distance between the step adjusting rod 440 and the first movable rod 410 is changed, and further, the step of the elliptical trainer is changed.

The main frame 100 is provided with a second sliding groove 110, the second sliding groove 110 is arc-shaped, and the second end of the step adjusting rod 440 is clamped in the second sliding groove 110.

The sliding block 630 includes a first block 631 and a second block 632, the first block 631 is in threaded connection with the lead screw 620, the second block 632 is in rotational connection with the first block 631, a rotational axis of the second block 632 is perpendicular to an axis of the lead screw 620, and the second block 632 is connected with the step adjustment rod 440.

The second end of the step adjustment lever 440 is positioned in the second sliding groove 110 having an arc shape, and the second end of the step adjustment lever 440 has an arc shape for easy engagement. Since the length of the first movable bar 410 is not changed, when the distance between the step adjustment lever 440 and the first movable bar 410 is changed, the second end of the step adjustment lever 440 inevitably moves a certain distance in the second sliding groove 110, and the angle of the step adjustment lever 440 is changed. After the rotatable second block 632 is provided, the angle change of the step adjustment lever 440 can be satisfied, so that the distance between the step adjustment lever 440 and the first movable bar 410 can be smoothly adjusted and controlled.

Further, in this embodiment, the screw 620 and the second block 632 can also be connected through a first bevel gear 640 and a second bevel gear 650. Since the second block 632 is rotatably connected to the first block 631, and the first end of the step adjustment lever 440 is mainly supported by the second block 632, the step adjustment lever 440 is easily swung along with the movement of the pedal 450 during use, thereby preventing the user from using the pedal in an efficient and safe manner. The second block 632 can be controlled by the first bevel gear 640 and the second bevel gear 650, so that the second block 632 can not rotate relative to the first block 631 after the step adjustment is completed, and the step adjustment device of the elliptical machine can be used safely and stably.

The first and second bevel gears 640 and 650 are connected to the screw 620 and the step adjustment lever 440 in such a manner that: the first bevel gear 640 is rotatably connected with the first block 631, the first bevel gear 640 is also in threaded connection with the screw 620, and the screw pitch of the first bevel gear 640 is greater than that of the first block 631; second bevel gear 650 is fixedly connected to second block 632, and second bevel gear 650 is engaged with first bevel gear 640.

When the motor 610 drives the screw 620 to rotate, the first block 631 drives the first bevel gear 640 and the second block 632 to move. In the process, since the pitch of the first bevel gear 640 is greater than that of the first block 631, the first bevel gear 640 rotates relative to the first block 631 while moving along with the first block 631, and the first bevel gear 640 rotates to drive the second bevel gear 650 to rotate, so as to adjust the angle of the step adjustment lever 440. When the motor 610 stops working, the pitch adjusting lever 440 can be prevented from continuing to rotate by the engagement between the second bevel gear 650 and the first bevel gear 640 and the threaded connection between the first bevel gear 640 and the lead screw 620.

When the motor 610 rotates forward, the screw 620 drives the sliding block 630 and the step adjustment lever 440 to approach towards the first movable rod 410, the first bevel gear 640 rotates relative to the first block 631, the rotation direction of the first bevel gear 640 is consistent with the rotation direction of the motor 610 (the rotation angular velocity of the first bevel gear 640 is smaller than that of the motor 610), and the second bevel gear 650 rotates under the driving of the first bevel gear 640 and drives the step adjustment lever 440 to rotate downward; when the motor 610 rotates reversely, the lead screw 620 drives the sliding block 630 and the pitch adjusting lever 440 to move in a direction away from the first movable rod 410, the first bevel gear 640 rotates relative to the first block 631, the rotating direction of the first bevel gear 640 is the same as the rotating direction of the motor 610, and the second bevel gear 650 rotates under the driving of the first bevel gear 640 and drives the pitch adjusting lever 440 to rotate upward.

In this embodiment, the teeth of first bevel gear 640 may be distributed only in a range where the central angle is less than or equal to 15 degrees, i.e., the teeth on first bevel gear 640 are not distributed along the entire circumference of first bevel gear 640. Therefore, when the first bevel gear 640 and the second bevel gear 650 rotate in an engaged manner, on one hand, the second bevel gear 650 drives the second block 632 to rotate by a limited angle, so that the rotation angle of the step pitch adjusting rod 440 is prevented from being larger than the angle corresponding to the second sliding chute 110; on the other hand, when the second bevel gear 650 cannot rotate continuously relative to the first bevel gear 640, the motor 610 cannot rotate continuously in the direction, and the first block 631 cannot move continuously, so that the sliding block 630 is prevented from falling off the pedal 450.

Of course, it is only one embodiment of this embodiment to set the first bevel gear 640 as the above structure, and in other embodiments, it is possible to set only the second bevel gear 650 as the above structure, or to set both the first bevel gear 640 and the second bevel gear 650 as the above structure.

The axis of the first bevel gear 640 is perpendicular to the axis of the second bevel gear 650, that is, both the first bevel gear 640 and the second bevel gear 650 are 45-degree bevel gears, so that the installation is more convenient, and the movement of the second block 632 is more flexible.

In some embodiments of the present embodiment, the first movable rod 410 and the second movable rod 420 are both in a single rod shape, and the third movable rod 430 includes a first rod 431, a second rod 432, and a third rod 433, the first rod 431 and the third rod 433 are respectively located at two ends of the second rod 432, the first rod 431 and the third rod 433 are arranged in parallel, one end of the third rod 433 away from the second rod 432 is rotatably connected to the second movable rod 420, and a connection point of the third rod 433 and the second rod 432 is rotatably connected to the stand 200.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.