Push-pull exercise bike

Abstract

The present invention discloses a push-pull type fitness walking vehicle, comprising a base frame (1), wherein the bottom of the base frame (1) is rotatably connected to a driving wheel (2) via a rotating shaft, a universal wheel (3) is arranged at the front of the base frame (1), a door frame (4) is fixedly connected to the base frame (1), two driving rods (6) are hingedly connected to the door frame (4), the bottom end of each driving rod (6) is hingedly connected to a connecting rod (8), one side of the connecting rod (8) is hingedly connected to a crank (10), the bottom of the base frame (1) is rotatably connected to a flywheel (9), the flywheel (9) is provided with a gear ring, and one side of the crank (10) is fixedly connected to the rotating shaft of the flywheel (9); the bottom of the base frame (1) is also rotatably connected to a passive gear (11), and the present invention drives the flywheel to rotate continuously forward by a mechanism that overcomes the dead point through the reciprocating swing of the handle, and the passive gear drives the driving wheel to rotate forward continuously, thereby utilizing the movement of the human arm to drive the fitness vehicle to move forward continuously.

Description

Technical Field

[0001] This invention relates to the field of exercise bikes, and more specifically to push-pull type exercise bikes. Background Technology

[0002] Given the increasing demands for quality of life from the public over the years, and the growing willingness of more and more people to dedicate time to physical exercise, coupled with the fast pace of life, more and more people hope to provide themselves with dynamic movement while exercising, and to avoid the repetitive boredom of fixed fitness equipment, hoping to add a sense of leisure and entertainment to their exercise.

[0003] There is a need to design and manufacture a push-pull fitness vehicle that can move forward simply by swinging the arms back and forth, for a wide range of fitness enthusiasts. Summary of the Invention

[0004] This invention addresses existing problems by providing a push-pull fitness scooter. By reciprocating the swing of the handlebars, a mechanism that overcomes dead points drives the flywheel and the passive gear to continuously rotate the active wheel forward. The movement of the user's arm propels the scooter forward continuously. Based on ergonomic engineering design, the scooter allows the driver or operator to exercise the strength of their feet, arms, waist, and hips, making it highly practical.

[0005] The present invention adopts the following technical solution:

[0006] A push-pull fitness bike includes a base frame. A drive wheel is rotatably connected to the bottom of the base frame via a pivot. A caster wheel is located at the front of the base frame. A gantry is fixedly connected to the base frame, and two drive rods are hinged to the gantry. A connecting rod is hinged to the bottom of each drive rod, and a crank is hinged to one side of the connecting rod. A flywheel is rotatably connected to the bottom of the base frame, and a gear ring is mounted on the flywheel. One side of the crank is fixedly connected to the flywheel's pivot. A driven gear is also rotatably connected to the bottom of the base frame and is fixedly connected to the drive wheel. The gear ring on the flywheel meshes with the driven gear. A mechanism to overcome dead points is located at the bottom of the base frame, cooperating with the crank. The flywheel drives the driven gear to rotate via the gear ring on its surface. The flywheel is a known technology; it only drives the gear ring to rotate when rotating clockwise. When the flywheel rotates counterclockwise, the gear ring remains stationary.

[0007] Furthermore, the mechanism for overcoming the dead point includes a fixed plate fixedly connected to the bottom of the base frame, a support spring fixedly connected to one side of the fixed plate, a triangular plate fixedly connected to one side of the support spring, and two inclined surfaces provided on one side of the crank, with the two inclined surfaces respectively forming a cooperation with the two sides of the triangular plate to overcome the dead point.

[0008] Furthermore, the mechanism for overcoming the dead point includes a rocker arm, one side of the crank is hinged to the middle of the rocker arm, the connecting rod is hinged to one end of the rocker arm, a fixed plate is fixedly connected to the bottom of the base frame, and a limit rod is hinged between the other end of the rocker arm and the fixed plate.

[0009] Furthermore, a brake pedal is hinged to the base frame, and two return springs are fixedly connected between the bottom of the brake pedal and the top of the base frame. The brake pedal and the drive wheel are in braking engagement.

[0010] Furthermore, the bottom of the base frame is provided with symmetrically distributed auxiliary wheels, and the bottom edge of the auxiliary wheels is higher than the bottom edge of the drive wheels.

[0011] Furthermore, symmetrically distributed foot positioning plates are fixedly connected to the base frame.

[0012] Furthermore, the base frame has symmetrically distributed limiting holes, and the drive rod is disposed on the inner wall of the limiting holes.

[0013] Furthermore, a handle is fixedly connected to the upper end of the drive rod by bolts.

[0014] Beneficial effects of this invention:

[0015] This invention uses the reciprocating swing of the handle to overcome dead points, driving the flywheel and the passive gear to continuously rotate the driving wheel forward, increasing the rotational inertia of the driving wheel. It utilizes the movement of the human arm to propel the exercise bike forward continuously. The ergonomically designed bike allows the driver or operator to exercise the strength of their feet, arms, waist, and hips, making it highly practical. Attached Figure Description

[0016] Figure 1 This is a front cross-sectional view of the first dead-point overcoming mechanism of the present invention;

[0017] Figure 2 This is a side cross-sectional view of the present invention;

[0018] Figure 3 This is a main body diagram of the present invention;

[0019] Figure 4 This is a front cross-sectional view of the second dead-point overcoming mechanism of the present invention;

[0020] Figure 5 This is the motion trajectory diagram of the second dead-point overcoming mechanism of the present invention.

[0021] 1. Base frame; 2. Drive wheel; 3. Casters; 4. Mast; 5. Limiting hole; 6. Drive rod; 7. Handle; 8. Linkage rod; 9. Flywheel; 10. Crank; 11. Driven gear; 12. Triangle plate; 13. Brake pedal; 14. Return spring; 15. Auxiliary wheel; 16. Foot positioning plate; 17. Rocker arm; 18. Support spring; 19. Limiting rod; 20. Fixing plate. Detailed Implementation

[0022] To make the present invention clearer, the push-pull fitness mobility vehicle of the present invention will be further described below with reference to the accompanying drawings. The specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0023] Example 1

[0024] like Figures 1 to 3 As shown, a push-pull fitness bike includes a base frame 1. A drive wheel 2 is rotatably connected to the bottom of the base frame 1 via a pivot. A caster wheel 3 is located at the front of the base frame 1. A gantry 4 is fixedly connected to the base frame 1. Two drive rods 6 are hinged to the gantry 4. A connecting rod 8 is hinged to the bottom end of each drive rod 6. A crank 10 is hinged to one side of the connecting rod 8. A flywheel 9 is rotatably connected to the bottom of the base frame 1. A gear ring is mounted on the flywheel 9. One side of the crank 10 is fixedly connected to the pivot of the flywheel 9. A driven gear 11 is also rotatably connected to the bottom of the base frame 1. The driven gear 11 is fixedly connected to the drive wheel 2, and the gear ring on the flywheel 9 meshes with the driven gear 11. The bottom of the base frame 1 is equipped with a mechanism to overcome dead points in conjunction with the crank 10. Through the reciprocating swing of the drive rod 6, the mechanism to overcome dead points drives the flywheel 9 and the driven gear 11 to drive the driving wheel 2 to rotate continuously forward. Through the alternating swing of the two drive rods 6, the rotational inertia of the driving wheel 2 is increased. The movement of the user's arm propels the exercise bike forward continuously. The omnidirectional wheels 3 allow the user to rotate in the same direction as the bike by twisting their waist and hips. The rotation is flexible and convenient. The ergonomically designed bike allows the driver or operator to exercise the strength of their feet, arms, waist, and hips, making it highly practical.

[0025] The mechanism for overcoming the dead point includes a fixed plate 20 fixedly connected to the bottom of the base frame 1. A support spring 18 is fixedly connected to one side of the fixed plate 20, and a triangular plate 12 is fixedly connected to one side of the support spring 18. Two inclined surfaces are provided on one side of the crank 10, and the two inclined surfaces respectively cooperate with the two sides of the triangular plate 12 to overcome the dead point. The included angle between the two inclined surfaces on one side of the crank 10 is 80 to 85 degrees, and an arc angle is provided at the intersection of the two inclined surfaces. The included angle between the two sides of the triangular plate 12 is 150 to 160 degrees, and an arc angle is provided at the intersection of the two sides. When the crank 10 is about to... When the crank 10 rotates to one revolution, the upper inclined surface on one side of the crank 10 first presses against the lower side of the triangle plate 12, and the triangle plate 12 presses against the support spring 18. As the crank 10 continues to rotate, it rotates to the center line of the triangle plate 12. The restoring force of the support spring 18 pushes the triangle plate 12, and the upper side of the triangle plate 12 presses against the lower inclined surface on one side of the crank 10. Then the crank 10 rotates to the same horizontal line as the connecting rod 8, which is the second dead point position. At this time, the squeezing force of the triangle plate 12 makes the crank 10 have a tendency to continue rotating when it reaches the second dead point position, thus overcoming the dead point.

[0026] A brake pedal 13 is hinged to the base frame 1. Two return springs 14 are fixedly connected between the bottom of the brake pedal 13 and the top of the base frame 1. The brake pedal 13 and the drive wheel 2 are in braking engagement. The brake pedal 13 is designed so that the user can decelerate the vehicle during operation. When decelerating, the user steps on the brake pedal 13 and uses the friction between the brake pedal 13 and the drive wheel 2 to reduce speed.

[0027] The bottom of the base frame 1 is provided with symmetrically distributed auxiliary wheels 15. The bottom edge of the auxiliary wheels 15 is higher than the bottom edge of the drive wheels 2. When turning, the auxiliary wheels 15 suspended on the inside of the turn touch the ground, assisting the exercise bike in turning and improving the stability of the exercise bike.

[0028] The base frame 1 is fixedly connected with symmetrically distributed foot positioning plates 16. The foot positioning plates 16 include three closed baffles to form a foot placement cavity. The foot positioning plates 16 enable the user's feet to be placed stably on the trolley, enhance balance, and play a role in protecting the user's safety.

[0029] The base frame 1 has symmetrically distributed limiting holes 5, and the drive rod 6 is set on the inner wall of the limiting hole 5. The limiting hole 5 allows the drive rod 6 to swing within a set range, preventing the drive rod 6 from shaking when swinging back and forth.

[0030] The upper end of the drive rod 6 is fixedly connected to a handle 7 by bolts. The handle 7 is convenient for users to hold and improves the comfort of use.

[0031] The working process of this solution is as follows: Before use, place one handle 7 in front and the other handle 7 in the back. When using, stand on top of the base frame 1 and place both feet inside the foot positioning plate 16. Hold the handles 7 with both hands in sequence. Once you are stable, move your hands back and forth rhythmically, causing the handles 7 to swing rhythmically. Moving the handles 7 forward causes the drive rod 6 to swing backward. The drive rod 6, through the connecting rod 8, causes the crank 10 to rotate clockwise. The rotation of the crank 10 causes the flywheel 9 to rotate. The flywheel 9 rotates through the surface... The ring gear drives the driven gear 11 to rotate. The flywheel 9 is a known technology; it only drives the ring gear to rotate when rotating clockwise. When the flywheel 9 rotates counterclockwise, the ring gear remains stationary, and the driven gear 11 drives the driving wheel 2 to roll. When the crank 10 rotates to 180 degrees, that is, when the crank 10 has rotated half a turn clockwise, the drive rod 6 swings to its maximum value. At this time, the connecting rod 8 and the crank 10 are on the same horizontal line, that is, at the first dead point position. Then, the handle 7 is moved backward. Under the action of the weight of the connecting rod 8 and the flywheel 9... Under inertia, connecting rod 8 drives crank 10 to continue rotating clockwise. When crank 10 is about to complete one revolution, the upper inclined surface on one side of crank 10 first presses against the lower side of triangle plate 12, and triangle plate 12 presses against support spring 18. As crank 10 continues to rotate, it rotates to the center line of triangle plate 12. The restoring force of support spring 18 pushes triangle plate 12, and the upper side of triangle plate 12 presses against the lower inclined surface on one side of crank 10. Then crank 10 rotates to the same horizontal line as connecting rod 8, which is the second dead point position. At this time, the squeezing force of triangle plate 12 makes crank 10 have a tendency to continue rotating when it reaches the second dead point position, thus overcoming the dead point. Through the reciprocating swing of handle 7, flywheel 9 and driven gear 11 drive drive wheel 2 to continue rotating forward. Through the back-and-forth swing of the two handles 7, the rotational inertia of drive wheel 2 is increased. In addition, when cornering, the auxiliary wheel 15 suspended on the inside of the corner touches the ground to assist the exercise bike in steering and improve the stability of the exercise bike.

[0032] Example 2

[0033] like Figures 4 to 5 As shown, in the push-pull fitness scooter, the mechanism for overcoming the dead point includes a rocker arm 17. One side of the crank 10 is hinged to the middle of the rocker arm 17. The connecting rod 8 is hinged to one end of the rocker arm 17. A fixed plate 20 is fixedly connected to the bottom of the base frame 1. A limit rod 19 is hinged between the other end of the rocker arm 17 and the fixed plate 20. By utilizing the fact that the hinge points of the connecting rod 8 and the rocker arm 17 and the rocker arm 17 and the crank 10 do not coincide, the starting position and the dead point position are not consistent. The user continuously swings the handle 7, making the moment of inertia of the drive wheel 2 sufficiently large, effectively avoiding the dead point problem that exists in the use of conventional drive devices, and allowing the drive wheel 2 to rotate continuously.

[0034] The working process of this solution is as follows: Before use, place one handle 7 in front and the other handle 7 in the back. When using, stand on the top of the base frame 1 and place both feet in the foot positioning plate 16. Hold the handle 7 with both hands in turn. After standing firmly, move your hands back and forth rhythmically to make the handle 7 swing rhythmically. Moving the handle 7 forward causes the drive rod 6 to swing backward. The drive rod 6 causes the connecting rod 8 to move backward. The connecting rod 8 causes the rocker arm 17 to swing back and forth. The rocker arm 17 causes the crank 10 to make a circular motion. The crank 10 drives the flywheel 9. The flywheel 9 drives the driving wheel 2 to roll through the driven gear 11. Since the hinge point between the connecting rod 8 and the rocker arm 17 and the hinge point between the rocker arm 17 and the crank 10 do not coincide, the starting position and the dead point position are not consistent. There will be no situation where the rocker arm 17 cannot rotate. The moment of inertia of the driving wheel 2 is large enough, so the driving wheel 2 can continue to rotate forward.

Claims

1. A push-pull type fitness scooter, comprising a base frame (1), the bottom of the base frame (1) being rotatably connected to a driving wheel (2) via a rotating shaft, and a universal wheel (3) being arranged at the front of the base frame (1), characterized in that: A door frame (4) is fixedly connected to the base frame (1), two driving rods (6) are hingedly connected to the door frame (4), a connecting rod (8) is hingedly connected to the bottom end of each driving rod (6), a crank (10) is hingedly connected to one side of the connecting rod (8), a flywheel (9) is rotatably connected to the bottom of the base frame (1), a gear ring is provided on the flywheel (9), and one side of the crank (10) is fixedly connected to the rotating shaft of the flywheel (9); The bottom of the base frame (1) is also rotatably connected to a passive gear (11), the passive gear (11) is fixedly connected to the driving wheel (2), the ring gear on the flywheel (9) and the passive gear (11) are meshed with each other, and the bottom of the base frame (1) is provided with a mechanism for overcoming the dead point that cooperates with the crank (10); The mechanism for overcoming the dead point comprises a fixing plate (20) fixedly connected to the bottom of the base frame (1), one side of the fixing plate (20) is fixedly connected to a support spring (18), one side of the support spring (18) is fixedly connected to a triangular plate (12), one side of the crank (10) is provided with two inclined surfaces, and the two inclined surfaces respectively cooperate with two sides of the triangular plate (12) to overcome the dead point; Alternatively, the mechanism for overcoming the dead point comprises a rocker arm (17), one side of the crank (10) is hinged to the middle of the rocker arm (17), the connecting rod (8) is hinged to one end of the rocker arm (17), the bottom of the base frame (1) is fixedly connected to a fixing plate (20), and a limit rod (19) is hinged between the other end of the rocker arm (17) and the fixing plate (20).

2. The push-pull type fitness vehicle according to claim 1, characterized in that: A brake pedal (13) is hingedly connected to the base frame (1), two return springs (14) are fixedly connected between the bottom of the brake pedal (13) and the top of the base frame (1), and the brake pedal (13) and the driving wheel (2) are in braking cooperation.

3. The push-pull type exercise scooter according to claim 1, characterized in that: The bottom of the base frame (1) is provided with symmetrically distributed auxiliary wheels (15), and the edge of the bottom of the auxiliary wheels (15) is higher than the edge of the bottom of the driving wheel (2).

4. The push-pull type exercise scooter according to claim 1, characterized in that: The base frame (1) is fixedly connected to symmetrically distributed foot positioning plates (16).

5. The push-pull type exercise scooter according to claim 1, characterized in that: The base frame (1) is provided with symmetrically distributed limiting holes (5), and the driving rod (6) is arranged on the inner wall of the limiting hole (5).

6. The push-pull type exercise scooter according to claim 1, characterized in that: The upper end of the driving rod (6) is fixedly connected to a handle (7) via bolts.

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