An elliptical trajectory lazy car with easier pedaling

Abstract

The utility model provides an elliptical trajectory lazy bike of easier stepping, including frame and seat and stepping mechanism on the frame, left and right sides of the stepping mechanism are connected with crank, the crank is connected with connecting rod mechanism, the top of the stepping mechanism is equipped with the bender, one end of the crank is connected with first axle rod, the connecting rod mechanism includes first connecting rod, second connecting rod and third connecting rod, the top of the first connecting rod is rotatably connected with the bender, the bottom of the first connecting rod is rotatably connected with one end of the second connecting rod, the third connecting rod is located one side of the second connecting rod, one end of the third connecting rod is rotatably connected with the lower part of the first connecting rod, the other end of the third connecting rod is rotatably connected with the first axle rod, the first axle rod is rotatably connected with the gyro wheel, the bottom of the second connecting rod is located in the gyro wheel, and the top of the second connecting rod is equipped with the pedal, the pedal is driven the gyro wheel relative crank rotation through the second connecting rod when stepping, so that the pedal is more labor-saving, smooth when stepping.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment, specifically to a lazy bike with an elliptical track that makes pedaling easier. Background Technology

[0002] Lazy bikes are a common type of fitness equipment found in gyms and homes. They are a type of exercise bike that uses pedals to drive a rotating mechanism, primarily working leg muscles and providing the benefits of outdoor aerobic exercise indoors. Currently, patent CN212548135U discloses a lazy bike with an elliptical trajectory, including a frame and two rocker mechanisms mounted on the left and right sides of the frame. Each side of the frame has a crank, and each crank is linked to a rocker mechanism. Each rocker mechanism has a pedal, and each pedal moves synchronously with its corresponding rocker mechanism to form an elliptical trajectory. While this patent achieves an elliptical pedaling trajectory, reducing impact on the knee joints, users rely on hard foot pressure to directly drive the cranks, resulting in heavier pedaling force and a less smooth pedaling experience. Utility Model Content

[0003] This utility model provides an elliptical track lazy bike that is easier to pedal, and its main purpose is to overcome the problems of existing elliptical track lazy bikes that require more force to pedal and are not smooth enough.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An elliptical-track lazy bike designed for easier pedaling includes a frame, a seat mounted on the frame, and a pedal mechanism. Cranks are connected to the left and right sides of the pedal mechanism, and the cranks are connected to a linkage mechanism. A curved rod is located at the top of the pedal mechanism. One end of each crank is connected to a first axle. The linkage mechanism includes a first link, a second link, and a third link. The top of the first link is rotatably connected to the curved rod, and the bottom of the first link is rotatably connected to one end of the second link. The third link is located to one side of the second link, and one end of the third link is rotatably connected to the lower part of the first link. The other end of the third link is rotatably connected to the first axle. A roller is rotatably connected to the first axle. The bottom of the second link is located within the roller, and a pedal is located at the top of the second link.

[0005] Furthermore, the bottom of the second connecting rod is provided with an arc-shaped rail piece adapted to the roller, and the arc-shaped rail piece is located inside the roller.

[0006] Furthermore, the bent rod is provided with a second shaft, and the top of the first connecting rod is provided with a rotating cylinder. The top of the rotating cylinder is connected to a handrail, and the rotating cylinder is rotatably connected to the second shaft.

[0007] Furthermore, the other end of the second link is inclined downwards, and the top surface of the second link is provided with a pedal connector. The top surface of the pedal connector is an inclined surface, and the pedal is connected to the top surface of the other end of the second link and the top surface of the pedal connector.

[0008] Furthermore, the angle between the bottom surface of the pedal and the top surface of the second link is 26-28°.

[0009] Furthermore, the handrail includes a connecting tube and a telescopic tube, the connecting tube being connected to the rotating cylinder, and the telescopic tube being telescopically oriented relative to the connecting tube.

[0010] Furthermore, the connecting pipe is provided with a first through hole, and the lower part of the telescopic pipe is provided with a plurality of second through holes arranged vertically. The lower part of the telescopic pipe is located inside the connecting pipe, and the connecting pipe is provided with an insertion rod that passes through the first through hole and the second through hole.

[0011] Furthermore, a third shaft is provided at the lower part of the first connecting rod, and one end of the third connecting rod is rotatably connected to the third shaft.

[0012] Furthermore, the front end of the vehicle frame is provided with two movable rollers, and when the vehicle frame is placed on the ground, the bottom surface of the two movable rollers is higher than the bottom surface of the vehicle frame.

[0013] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages: When the user sits on the seat and presses the pedal, the second link, the first link, and the third link make elliptical movements, causing the pedal to also make elliptical movements. When the third link makes elliptical movements, it drives the crank to make circular movements. When the pedal is pressed, the second link drives the roller to rotate relative to the crank. In addition to supporting the second link and the pedal, the roller can also provide assistance to the second link and the pedal through rolling, making the pedal easier and smoother to press. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the present invention.

[0015] Figure 2 This is a structural diagram of the present invention from another angle.

[0016] Figure 3 This is a partial exploded view of the structure of this utility model.

[0017] Figure 4 This is a structural diagram of the linkage mechanism of this utility model.

[0018] Figure 5 This is a structural diagram of the linkage mechanism of this utility model from another angle. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0020] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Reference Figures 1 to 5An elliptical-track lazy bike with easier pedaling includes a frame 1, a seat 2 mounted on the frame 1, and a pedaling mechanism 3. Cranks 4 are connected to the left and right sides of the pedaling mechanism 3, and the cranks 4 are connected to a linkage mechanism 5. A curved rod 6 is located at the top of the pedaling mechanism 3. The pedaling mechanism 3 is an existing component of lazy bikes, and its specific structure will not be described in detail here. One end of the crank 4 is connected to a first axle 41. The linkage mechanism 5 includes a first connecting rod 51, a second connecting rod 52, and a third connecting rod 53. The top of the first connecting rod 51 is rotatably connected to the curved rod 6, and the bottom of the first connecting rod 51 is rotatably connected to one end of the second connecting rod 52. The third connecting rod 53 is located to one side of the second connecting rod 52, and one end of the third connecting rod 53 is rotatably connected to the lower part of the first connecting rod 51. The other end of the third connecting rod 53 is rotatably connected to the first axle 41. The first shaft 41 is rotatably connected to a roller 7. The bottom of the second connecting rod 52 is located inside the roller 7, and the top of the second connecting rod 52 is provided with a pedal 8. The bottom of the second connecting rod 52 is provided with an arc-shaped rail 54 adapted to the roller 7, and the arc-shaped rail 54 is located inside the roller 7.

[0023] Reference Figure 2 and Figure 3 The bent rod 6 is provided with a second shaft 61, and the top of the first connecting rod 51 is provided with a rotating cylinder 55. The top of the rotating cylinder 55 is connected to a handrail 9, and the rotating cylinder 55 is rotatably connected to the second shaft 61. The rotating cylinder 55 can rotate around the second shaft 61, so that the first connecting rod 51 and the handrail 9 can rotate around the second shaft 61 simultaneously. The lower part of the first connecting rod 51 is provided with a third shaft 56, and one end of the third connecting rod 53 is rotatably connected to the third shaft 56.

[0024] Reference Figure 1 and Figure 5 The other end of the second connecting rod 52 is inclined downwards, and a pedal connector 57 is provided on the top surface of the second connecting rod 52. The top surface of the pedal connector 57 is an inclined surface, and the pedal 8 is connected to the top surface of the other end of the second connecting rod 52 and the top surface of the pedal connector 57. The downward inclination of the other end of the second connecting rod 52 and the inclined top surface of the pedal connector 57 result in an angle of 26-28° between the bottom surface of the pedal 8 and the top surface of the second connecting rod 52 after the pedal 8 is connected to the top surface of the other end of the second connecting rod 52 and the top surface of the pedal connector 57. Preferably, this angle is 27°. This angle makes the inclination angle of the pedal 8 more ergonomically designed for the foot, reducing the risk of injury when the user steps on it.

[0025] Reference Figure 1 , Figure 4 and Figure 5The handrail 9 includes a connecting pipe 91 and a telescopic pipe 92. The connecting pipe 91 is connected to the rotating cylinder 55, and the telescopic pipe 92 is telescopically oriented relative to the connecting pipe 91. Specifically, the connecting pipe 91 has a first through hole 93, and the lower part of the telescopic pipe 92 has multiple second through holes 94 arranged vertically. The lower part of the telescopic pipe 92 is located inside the connecting pipe 91, and the connecting pipe 91 has an insertion rod 95 that passes through the first through hole 93 and the second through hole 94. In this embodiment, the insertion rod 95 is a screw, and after passing through the first through hole 93 and the second through hole 94, the insertion rod 95 is connected to a nut 96. The telescopic tube 92 can be extended or retracted according to the user's height. When the telescopic tube 92 needs to be extended or retracted, the nut 96 is removed from the insert rod 95, and then the insert rod 95 is pulled out from the first through hole 93 and the second through hole 94. At this time, the telescopic tube 92 can be extended or retracted. When the telescopic tube 92 is adjusted to the required position, the insert rod 95 is passed through the first through hole 93 and the second through hole 94 again, and finally the insert rod 95 is connected to the nut 96.

[0026] Reference Figure 1 The frame 1 has two movable rollers 10 at its front end. When the frame 1 is placed on the ground, the bottom surfaces of the two movable rollers 10 are higher than the bottom surface of the frame 1. When the scooter needs to be moved, the rear end of the frame 1 is lifted so that the two movable rollers 10 contact the ground. At this time, the frame 1 can be pushed or pulled, which greatly facilitates the movement of the scooter.

[0027] Reference Figures 1 to 5 The design principle of this utility model is as follows: the first connecting rod 51 and the armrest 9 can rotate simultaneously around the second shaft 61, the second connecting rod 52 can rotate around the bottom of the first connecting rod 51, and the third connecting rod 53 can rotate around the third shaft 56 on the first connecting rod 51. When the user sits on the seat 2 and steps on the pedal 8, the second connecting rod 52, the first connecting rod 51, and the third connecting rod 53 perform elliptical motion, causing the pedal 8 to also perform elliptical motion. When the third connecting rod 53 performs elliptical motion, it drives the crank 4 to perform circular motion. When the pedal 8 is stepped on, it drives the roller 7 to rotate relative to the crank 4 through the second connecting rod 52. The roller 7 not only supports the second connecting rod 52 and the pedal 8, but also provides assistance to the second connecting rod 52 and the pedal 8 through rolling, making the pedal 8 easier and smoother to step on. At the same time, when the first connecting rod 51 moves, the armrest 9 also swings back and forth, allowing the user to move both feet and hands simultaneously.

[0028] It should be noted that the rotary connection mentioned in this embodiment is a conventional connection method in the art, and its specific connection method will not be described in detail here.

[0029] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A lazy bicycle with an elliptical track for easier pedaling, characterized in that: The bicycle includes a frame, a seat mounted on the frame, and a pedal mechanism. Cranks are connected to the left and right sides of the pedal mechanism, and the cranks are connected to a linkage mechanism. A bent rod is located at the top of the pedal mechanism. One end of the crank is connected to a first axle. The linkage mechanism includes a first link, a second link, and a third link. The top of the first link is rotatably connected to the bent rod, and the bottom of the first link is rotatably connected to one end of the second link. The third link is located to one side of the second link, and one end of the third link is rotatably connected to the lower part of the first link. The other end of the third link is rotatably connected to the first axle. A roller is rotatably connected to the first axle. The bottom of the second link is located inside the roller, and a pedal is located at the top of the second link.

2. The elliptical trajectory lazy bike with easier pedaling as described in claim 1, characterized in that: The bottom of the second connecting rod is provided with an arc-shaped rail piece adapted to the roller, and the arc-shaped rail piece is located inside the roller.

3. The elliptical trajectory lazy bike with easier pedaling as described in claim 1, characterized in that: The bent rod is provided with a second shaft, and the top of the first connecting rod is provided with a rotating cylinder. The top of the rotating cylinder is connected to a handrail, and the rotating cylinder is rotatably connected to the second shaft.

4. The elliptical trajectory lazy bike with easier pedaling as described in claim 1, characterized in that: The other end of the second link is inclined downwards, and the top surface of the second link is provided with a pedal connector. The top surface of the pedal connector is an inclined surface, and the pedal is connected to the top surface of the other end of the second link and the top surface of the pedal connector.

5. The elliptical trajectory lazy bike with easier pedaling as described in claim 4, characterized in that: The angle between the bottom surface of the pedal and the top surface of the second connecting rod is 26-28°.

6. The elliptical trajectory lazy bike with easier pedaling as described in claim 3, characterized in that: The handrail includes a connecting tube and a telescopic tube. The connecting tube is connected to the rotating cylinder, and the telescopic tube is telescopically oriented relative to the connecting tube.

7. The elliptical trajectory lazy bike with easier pedaling as described in claim 6, characterized in that: The connecting pipe is provided with a first through hole, and the lower part of the telescopic pipe is provided with a plurality of second through holes arranged vertically. The lower part of the telescopic pipe is located inside the connecting pipe, and the connecting pipe is provided with a rod that passes through the first through hole and the second through hole.

8. The elliptical trajectory lazy bike with easier pedaling as described in claim 1, characterized in that: The lower part of the first connecting rod is provided with a third shaft, and one end of the third connecting rod is rotatably connected to the third shaft.

9. A lazy bike with an elliptical track for easier pedaling as described in claim 1, characterized in that: The front end of the vehicle frame is provided with two movable rollers, and when the vehicle frame is placed on the ground, the bottom surface of the two movable rollers is higher than the bottom surface of the vehicle frame.

Images