Legs linkage step device

Abstract

This invention discloses a four-limb coordinated stepping device, including a base frame. A foot pedal mechanism, a hand crank mechanism, and a linkage wheel are rotatably connected to the base frame. The linkage wheel is rotatably connected to both the foot pedal mechanism and the hand crank mechanism. When any one of these three mechanisms rotates relative to the base frame, it causes the other two to rotate relative to the base frame. A seat is also slidably connected to the base frame, positioned on one side of the foot pedal mechanism and the hand crank mechanism and capable of sliding back and forth relative to the base frame. This invention, by configuring a foot pedal mechanism, a hand crank mechanism, and a linkage wheel that can rotate relative to the base frame, with the linkage wheel rotatably connected to both mechanisms, allows the user to simultaneously rotate both the foot pedal mechanism and the hand crank mechanism when the user cranks the hand crank mechanism and / or steps on the foot pedal mechanism, thus enabling synchronized movement of the user's limbs and improving core coordination.

Description

Technical Field

[0001] This invention relates to the field of sports equipment, and more particularly to a four-limb coordinated stepping device. Background Technology

[0002] A hand-cranked stepper is a non-electric home aerobic fitness device that combines leg steps with a hand crank. Existing hand-cranked steppers consist of a base frame, foot pedals, and a hand crank, which can rotate relative to the base frame. Because existing hand-cranked steppers lack coordination between the foot pedals and the hand crank, users often experience difficulty in coordinating limb movements and poor core coordination, particularly elderly individuals with limited limb coordination who may be exercising or undergoing rehabilitation activities. Summary of the Invention

[0003] The purpose of this invention is to provide a four-limb linkage stepping device to solve the problem that the foot pedal and hand crank of the existing hand-cranked stepper lack linkage, which makes it difficult for users to move their limbs synchronously and results in poor core coordination.

[0004] This invention is achieved through the following technical solution: The four-limb linkage stepping device includes a base frame, on which a foot pedal mechanism, a hand crank mechanism, and a linkage wheel are rotatably connected. The linkage wheel is rotatably connected to the foot pedal mechanism and the hand crank mechanism respectively. When any one of the foot pedal mechanism, the hand crank mechanism, and the linkage wheel rotates relative to the base frame, it drives the other two to rotate relative to the base frame. A seat is also slidably connected to the base frame. The seat is located on one side of the foot pedal mechanism and the hand crank mechanism and can slide back and forth relative to the base frame.

[0005] Furthermore, it also includes a resistance mechanism, which is located on one side of the linkage wheel to increase the rotational resistance of the linkage wheel.

[0006] Furthermore, the linkage wheel is provided with a crank, the hand crank mechanism includes a hand crank and a first connecting rod, the hand crank is rotatably connected to the base frame, and the first connecting rod is rotatably connected to both the hand crank and the crank; the foot pedal mechanism includes a foot pedal, a third connecting rod, a fourth connecting rod, and a fifth connecting rod, the foot pedal is rotatably connected to both the third connecting rod and the fourth connecting rod, the third connecting rod and the fourth connecting rod are rotatably connected to the base frame and are spaced apart on the base frame, with the third connecting rod at the front and the fourth connecting rod at the rear, and the fifth connecting rod is rotatably connected to both the fourth connecting rod and the crank.

[0007] Furthermore, the upper end of the third link is rotatably connected to the foot pedal and the lower end is rotatably connected to the base frame; the upper end of the fourth link is rotatably connected to the foot pedal, the middle part is rotatably connected to the fifth link, and the lower end is rotatably connected to the base frame.

[0008] Furthermore, the hand crank is located outside the foot pedal, and the third link, the fifth link, and the fourth link are arranged sequentially from the inside to the outside.

[0009] Furthermore, the connection point between the linkage wheel and the base frame is defined as the first hinge position, the connection point between the hand crank and the base frame is defined as the second hinge position, the connection point between the fourth link and the base frame is defined as the third hinge position, and the connection point between the third link and the base frame is defined as the fourth hinge position. The first hinge position, the second hinge position, the third hinge position, and the fourth hinge position are spaced apart from back to front.

[0010] Furthermore, the hand crank has a crossbar rotatably connected to the base frame. The crossbar extends to the left and right and is located above or below the fifth link. The fifth link is provided with a clearance groove. When the fifth link moves relative to the base frame, the crossbar moves into or out of the clearance groove.

[0011] Furthermore, the resistance mechanism includes a resistance wheel and a magnetic sheet. The resistance wheel is rotatably connected to the base frame and is driven by the linkage wheel via a belt. The resistance wheel is made of iron, and the magnetic sheet is located on the periphery of the resistance wheel and is made of magnet.

[0012] Furthermore, the base frame is provided with a support bar that is arranged around the resistance wheel. The support bar is arc-shaped and can swing relative to the base frame to move closer to or away from the resistance wheel. The inner side of the support bar is provided with a plurality of magnetic sheets that are spaced apart in its length direction.

[0013] Furthermore, the base frame is provided with a sliding rod extending forward and backward, and the seat is provided with a sliding base that slides with the sliding rod. The sliding base is provided with a locking mechanism that restricts its movement along the sliding rod. The locking mechanism includes a stop block and a rocker arm. The stop block can move up and down relative to the sliding base, and the rocker arm can rotate relative to the sliding base. When the rocker arm rotates, it can drive the stop block to move down and abut against the sliding rod, or release the stop block so that the stop block can move up and disengage from the sliding rod. The sliding base is provided with an elastic element that drives the stop block to move up. The stop block has two inclined surfaces, one end of which is connected. Each inclined surface is inclined upward in a direction away from the other inclined surface. The rocker arm is provided with a stop block that abuts against the inclined surface when it rotates. A roller that can roll along the sliding rod is rotatably connected to the sliding base. And / or the base frame is provided with a power mechanism that drives the linkage wheel to rotate.

[0014] The advantage of this technical solution is that by configuring a foot pedal mechanism, a hand crank mechanism, and a linkage wheel that can rotate relative to the base frame, the linkage wheel is rotatably connected to the foot pedal mechanism and the hand crank mechanism respectively. When any one of the foot pedal mechanism, hand crank mechanism, and linkage wheel rotates relative to the base frame, it drives the other two to rotate relative to the base frame. When the user cranks the hand crank mechanism and / or steps on the foot pedal mechanism, the foot pedal mechanism and hand crank mechanism rotate relative to the base frame simultaneously, thereby enabling the user's limbs to move synchronously and achieving good core coordination. Attached Figure Description

[0015] 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.

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a three-dimensional four-limb linkage stepping device disclosed in the embodiment. Figure 1 ; Figure 2 This is a three-dimensional four-limb linkage stepping device disclosed in the embodiment. Figure 2 ; Figure 3 This is a three-dimensional four-limb linkage stepping device disclosed in the embodiment. Figure 3 ; Figure 4 This is a three-dimensional four-limb linkage stepping device disclosed in the embodiment. Figure 4 ; Figure 5 yes Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a top view of the four-limb linkage stepping device disclosed in the embodiment; Figure 7 yes Figure 6 A magnified view of a section at point B in the middle; Figure 8 This is a cross-sectional view of the four-limb linkage stepping device disclosed in the embodiment; Figure 9 yes Figure 8 A magnified view of a section at point C. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Figure 1-9 As shown, the four-limb linkage stepping device includes a base frame 1. A foot pedal mechanism 2, a hand crank mechanism 3, and a linkage wheel 4 are rotatably connected to the base frame 1. The linkage wheel 4 is rotatably connected to the foot pedal mechanism 2 and the hand crank mechanism 3 respectively. When any one of the foot pedal mechanism 2, the hand crank mechanism 3, and the linkage wheel 4 rotates relative to the base frame 1, it drives the other two to rotate relative to the base frame 1. A seat 6 is also slidably connected to the base frame 1. The seat 6 is located on one side of the foot pedal mechanism 2 and the hand crank mechanism 3 and can slide back and forth relative to the base frame 1.

[0020] When using this four-limb coordinated stepping device for exercise, the steps are as follows: First, the user adjusts the position of the seat 6 according to their own situation. Then, the user holds the hand crank mechanism 3 and steps on the foot pedal mechanism 2. Finally, the user cranks the hand crank mechanism 3 and / or steps on the foot pedal mechanism 2 to make the foot pedal mechanism 2, the hand crank mechanism 3 and the linkage wheel 4 rotate relative to the base frame 1.

[0021] Since any one of the foot pedal mechanism 2, hand crank mechanism 3 and linkage wheel 4 rotates relative to the base frame 1, it drives the other two to rotate relative to the base frame 1. Therefore, when the user cranks the hand crank mechanism 3 and / or steps on the foot pedal mechanism 2, the foot pedal mechanism 2, hand crank mechanism 3 and linkage wheel 4 can rotate relative to the base frame 1 simultaneously, so that the user's limbs move synchronously and the core coordination is good.

[0022] In summary, this embodiment provides a four-limb linkage stepping device to solve the problem that existing hand-cranked steppers lack linkage between the foot pedal and the hand crank, resulting in difficulty for users to move their limbs synchronously and poor core coordination during use. This is mainly achieved by configuring a foot pedal mechanism 2, a hand crank mechanism 3, and a linkage wheel 4 that can rotate relative to the base frame 1. The linkage wheel 4 is rotatably connected to the foot pedal mechanism 2 and the hand crank mechanism 3 respectively. When any one of the three components rotates relative to the base frame 1, it drives the other two to rotate relative to the base frame 1. When the user cranks the hand crank mechanism 3 and / or steps on the foot pedal mechanism 2, the foot pedal mechanism 2 and the hand crank mechanism 3 rotate simultaneously relative to the base frame 1, thereby enabling the user to move their limbs synchronously and achieve good core coordination.

[0023] In this embodiment of the invention, a resistance mechanism 5 is also included. The resistance mechanism 5 is disposed on one side of the linkage wheel 4 to increase the rotational resistance of the linkage wheel 4. Since the rotational speeds of the foot pedal mechanism 2, the hand crank mechanism 3, and the linkage wheel 4 are positively correlated, by configuring the resistance mechanism 5 on one side of the linkage wheel 4 to increase the rotational resistance of the linkage wheel 4, the motion load of the foot pedal mechanism 2 and the hand crank mechanism 3 can be increased, thereby increasing the amount of exercise.

[0024] In this embodiment of the invention, the linkage wheel 4 is provided with a crank 401, the hand crank mechanism 3 includes a hand crank 301 and a first connecting rod 302, the hand crank 301 is rotatably connected to the base frame 1, and the first connecting rod 302 is rotatably connected to both the hand crank 301 and the crank 401. The foot pedal mechanism 2 includes a foot pedal 201, a third connecting rod 202, a fourth connecting rod 203, and a fifth connecting rod 204, the foot pedal 201 is rotatably connected to both the third connecting rod 202 and the fourth connecting rod 203, the third connecting rod 202 and the fourth connecting rod 203 are rotatably connected to the base frame 1 and are spaced apart on the base frame 1, with the third connecting rod 202 further forward and the fourth connecting rod 203 further back. The fifth connecting rod 204 is rotatably connected to both the fourth connecting rod 203 and the crank 401. The hand crank 301 is for the user to hold, the foot pedal 201 is for the user to step on, and the crank 401 rotates synchronously with the linkage wheel 4. The above configuration allows any one of the foot pedal mechanism 2, hand crank mechanism 3, and linkage wheel 4 to rotate relative to the base frame 1, thereby driving the other two to rotate relative to the base frame 1. The linkage structure is simple and easy to implement.

[0025] In this embodiment of the invention, there are two hand crank mechanisms 3, which are respectively located on the left and right sides of the base frame 1 and can rotate synchronously relative to the base frame 1. When the two hand crank mechanisms 3 rotate synchronously relative to the base frame 1, they are staggered front and back. There are two foot pedal mechanisms 2, which are respectively located on the left and right sides of the base frame 1 and can rotate synchronously relative to the base frame 1. When the two foot pedal mechanisms 2 rotate synchronously relative to the base frame 1, they are staggered front and back. There are two cranks 401, which are respectively located on the left and right sides of the linkage wheel 4 and are rotatably connected to the two foot pedal mechanisms 2 and the hand crank mechanism 3 respectively.

[0026] In this embodiment of the invention, the upper end of the third link 202 is rotatably connected to the foot pedal 201, and the lower end is rotatably connected to the base frame 1. The upper end of the fourth link 203 is rotatably connected to the foot pedal 201, the middle part is rotatably connected to the fifth link 204, and the lower end is rotatably connected to the base frame 1. The above arrangement makes the foot pedal mechanism 2 rotate stably and smoothly.

[0027] In this embodiment of the invention, the hand crank 301 is located outside the foot pedal 201, and the third link 202, the fifth link 204, and the fourth link 203 are arranged sequentially from the inside to the outside. This arrangement ensures that the hand crank 301, the third link 202, the fifth link 204, and the fourth link 203 are logically arranged, and that rotation is stable and smooth.

[0028] In this embodiment of the invention, the connection point between the linkage wheel 4 and the base frame 1 is defined as the first hinge position 7, the connection point between the hand crank 301 and the base frame 1 is defined as the second hinge position 8, the connection point between the fourth connecting rod 203 and the base frame 1 is defined as the third hinge position 9, and the connection point between the third connecting rod 202 and the base frame 1 is defined as the fourth hinge position 10. The first hinge position 7, the second hinge position 8, the third hinge position 9, and the fourth hinge position 10 are arranged at intervals from back to front. The above arrangement makes the foot pedal mechanism 2, the hand crank mechanism 3, and the linkage wheel 4 reasonably arranged on the base frame 1, resulting in a good linkage effect.

[0029] In this embodiment of the invention, the hand crank 301 has a crossbar 304 rotatably connected to the base frame 1. The crossbar 304 extends left and right and is located above or below the fifth connecting rod 204. The fifth connecting rod 204 is provided with a clearance groove 205. The crossbar 304 moves into or out of the clearance groove 205 when the fifth connecting rod 204 moves relative to the base frame 1. The above arrangement avoids interference when the foot pedal mechanism 2 and the hand crank mechanism 3 are linked.

[0030] In this embodiment of the invention, the resistance mechanism 5 includes a resistance wheel 501 and a magnetic sheet 502. The resistance wheel 501 is rotatably connected to the base frame 1 and is driven by the linkage wheel 4 via a belt. The resistance wheel 501 is made of iron, and the magnetic sheet 502 is disposed around the resistance wheel 501 and is made of magnet. Since the rotational speeds of the resistance wheel 501 and the linkage wheel 4 are positively correlated, and the faster the rotational speed of the resistance wheel 501, the greater the resistance it experiences, the resistance mechanism 5 can increase the rotational resistance of the linkage wheel 4.

[0031] In this embodiment of the invention, a support bar 11 is provided on the base frame 1, which is arranged around the resistance wheel 501. The support bar 11 is arc-shaped and can swing relative to the base frame 1 to move closer to or away from the resistance wheel 501. A plurality of magnetic sheets 502 are provided on the inner side of the support bar 11 at intervals along its length. The above arrangement makes the resistance of the linkage wheel 4 adjustable, adaptable to different load requirements, and flexible in use.

[0032] In this embodiment of the invention, one end of the support bar 11 is rotatably connected to the base frame 1, and the other end is slidably connected to the base frame 1. The end of the support bar 11 that is slidably connected to the base frame 1 is provided with a locking block (not shown in the figure) to lock the support bar 11 onto the base frame 1. The above arrangement makes the distance between the support bar 11 and the resistance wheel 501 adjustable and can be locked at the target position.

[0033] In this embodiment of the invention, the base frame 1 is provided with a sliding rod 101 extending forward and backward, and the seat 6 is provided with a sliding seat 601 that slides in cooperation with the sliding rod 101. The sliding seat 601 is provided with a locking mechanism 602 that restricts its movement along the sliding rod 101. The above arrangement makes the seat 6 move stably and smoothly, and can be locked in the target position.

[0034] In this embodiment of the invention, the locking mechanism 602 includes a stop block 603 and a rocker arm 604. The stop block 603 can move up and down relative to the slide block 601, and the rocker arm 604 can rotate relative to the slide block 601. When the rocker arm 604 rotates, it can drive the stop block 603 to move down and abut against the slide rod 101, or release the stop block 603 so that the stop block 603 can move up and disengage from the slide rod 101. The above configuration allows the locking mechanism 602 to lock the seat 6 onto the slide rod 101 or release the seat 6, which is simple in structure and easy to implement.

[0035] In this embodiment of the invention, the slide block 601 is provided with an elastic element that drives the stop block 603 to move upward. This arrangement allows the stop block 603 to move upward and disengage from the slide rod 101.

[0036] In this embodiment of the invention, the stop block 603 has two inclined surfaces 605 connected at one end. Each inclined surface 605 is inclined upward in a direction away from the other inclined surface 605. The rocker arm 604 is provided with a stop block 606 that abuts against the inclined surfaces 605 when it rotates. The above arrangement allows the rocker arm 604 to rotate and drive the stop block 603 to move downward and abut against the slide rod 101, or to release the stop block 603 so that it can move upward and disengage from the slide rod 101.

[0037] In this embodiment of the invention, a roller 607 that can roll along the slide bar 101 is rotatably connected to the slide 601. The above arrangement allows the seat 6 to move smoothly.

[0038] In this embodiment of the invention, the slide bar 101 is located above the resistance mechanism 5 and the linkage wheel 4.

[0039] In this embodiment of the invention, the base frame 1 is equipped with a power mechanism (not shown in the figure) that drives the linkage wheel 4 to rotate. The power mechanism can be, but is not limited to, a motor. This arrangement allows users with insufficient strength to move passively.

[0040] It should be understood that the terms "first," "second," etc., are used in this invention to describe various information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this invention, "first" information can also be referred to as "second" information, and similarly, "second" information can also be referred to as "first" information. In addition, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0041] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered as protected by the present invention.

Claims

1. A four-limb linkage stepping device, comprising a base frame (1), characterized in that: A foot pedal mechanism (2), a hand crank mechanism (3), and a linkage wheel (4) are rotatably connected to the base frame (1). The linkage wheel (4) is rotatably connected to the foot pedal mechanism (2) and the hand crank mechanism (3) respectively. When any one of the foot pedal mechanism (2), the hand crank mechanism (3), and the linkage wheel (4) rotates relative to the base frame (1), it drives the other two to rotate relative to the base frame (1). A seat (6) is slidably connected to the base frame (1). The seat (6) is located on one side of the foot pedal mechanism (2) and the hand crank mechanism (3) and can slide back and forth relative to the base frame (1).

2. The four-limb coordinated stepping device according to claim 1, characterized in that, It also includes a resistance mechanism (5), which is located on one side of the linkage wheel (4) to increase the rotational resistance of the linkage wheel (4).

3. The four-limb coordinated stepping device according to claim 1, characterized in that, The linkage wheel (4) is provided with a crank (401), and the hand crank mechanism (3) includes a hand crank (301) and a first connecting rod (302). The hand crank (301) is rotatably connected to the base frame (1), and the first connecting rod (302) is rotatably connected to the hand crank (301) and the crank (401) respectively. The foot pedal mechanism (2) includes a foot pedal (201), a third link (202), a fourth link (203), and a fifth link (204). The foot pedal (201) is rotatably connected to the third link (202) and the fourth link (203), respectively. The third link (202) and the fourth link (203) are rotatably connected to the base frame (1) and are spaced apart on the base frame (1). The third link (202) is in front and the fourth link (203) is in the back. The fifth link (204) is rotatably connected to the fourth link (203) and the crank (401), respectively.

4. The four-limb coordinated stepping device according to claim 3, characterized in that, The upper end of the third link (202) is rotatably connected to the foot pedal (201), and the lower end is rotatably connected to the base frame (1); The upper end of the fourth link (203) is rotatably connected to the foot pedal (201), the middle part is rotatably connected to the fifth link (204), and the lower end is rotatably connected to the base frame (1).

5. The four-limb coordinated stepping device according to claim 3, characterized in that, The hand crank (301) is located outside the foot pedal (201), and the third link (202), the fifth link (204) and the fourth link (203) are arranged sequentially from the inside to the outside.

6. The four-limb coordinated stepping device according to claim 3, characterized in that, The connection point between the linkage wheel (4) and the base frame (1) is defined as the first hinge position (7), the connection point between the hand crank (301) and the base frame (1) is defined as the second hinge position (8), the connection point between the fourth link (203) and the base frame (1) is defined as the third hinge position (9), and the connection point between the third link (202) and the base frame (1) is defined as the fourth hinge position (10). The first hinge position (7), the second hinge position (8), the third hinge position (9), and the fourth hinge position (10) are spaced apart from back to front.

7. The four-limb coordinated stepping device according to claim 3, characterized in that, The hand crank (301) has a crossbar (304) rotatably connected to the base frame (1). The crossbar (304) extends to the left and right and is located above or below the fifth link (204). The fifth link (204) is provided with a relief groove (205). The crossbar (304) moves into or away from the relief groove (205) when the fifth link (204) moves relative to the base frame (1).

8. The four-limb coordinated stepping device according to claim 2, characterized in that, The resistance mechanism (5) includes a resistance wheel (501) and a magnetic plate (502). The resistance wheel (501) is rotatably connected to the base frame (1) and is connected to the linkage wheel (4) via a belt. The resistance wheel (501) is made of iron, and the magnetic plate (502) is located on the periphery of the resistance wheel (501) and is made of magnet.

9. The four-limb coordinated stepping device according to claim 8, characterized in that, The base frame (1) is provided with a support bar (11) surrounding the resistance wheel (501). The support bar (11) is arc-shaped and can swing relative to the base frame (1) to approach or move away from the resistance wheel (501). The inner side of the support bar (11) is provided with a plurality of magnetic sheets (502) spaced apart in its length direction.

10. The four-limb coordinated stepping device according to claim 1, characterized in that, The base frame (1) is provided with a sliding rod (101) extending forward and backward, and the seat (6) is provided with a sliding seat (601) that slides in cooperation with the sliding rod (101). The sliding seat (601) is provided with a locking mechanism (602) that restricts its movement along the sliding rod (101). The locking mechanism (602) includes a stop block (603) and a rocker arm (604). The stop block (603) can move up and down relative to the slide block (601), and the rocker arm (604) can rotate relative to the slide block (601). When the rocker arm (604) rotates, it can drive the stop block (603) to move down and abut against the slide rod (101), or release the stop block (603) so that the stop block (603) can move up and disengage from the slide rod (101). The slide block (601) is provided with an elastic element that drives the stop block (603) to move upward; The stop block (603) has two inclined surfaces (605), one end of the two inclined surfaces (605) is connected, and any one of the inclined surfaces (605) is inclined upward in a direction away from the other inclined surface (605). The rocker arm (604) is provided with a stop block (606) that abuts against the inclined surface (605) when it rotates. A roller (607) that can roll along the slide bar (101) is rotatably connected to the slide block (601). And / or the base frame (1) is provided with a power mechanism to drive the linkage wheel (4) to rotate.

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