A baby carriage handlebar steering mechanism

Abstract

The present invention discloses a baby stroller handlebar steering mechanism, relating to the technical field of baby strollers. The key technical aspects of the mechanism are as follows: a drive shaft disposed at the rear of the stroller, the top end of the drive shaft fixedly connected to the handlebar, vertical steering shafts disposed on both sides of the front end of the stroller, a horizontal crossbeam fixedly connected within the stroller, the steering shaft passing through and rotatably connected to the crossbeam, the bottom end of the steering shaft bent outward and connected to the front wheel, and a steering mechanism disposed within the stroller between the drive shaft and the steering shaft for driving the steering shaft to rotate. The present invention aims to provide a baby stroller handlebar steering mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of baby carriages, and more particularly to a baby carriage handlebar steering mechanism. Background Art

[0002] Existing baby strollers can be divided into electric baby strollers and hand-push baby strollers according to the driving mode. Hand-push baby strollers are generally provided with a push handle to push the baby stroller. When turning, the existing hand-push baby stroller generally needs to deflect the baby stroller as a whole through the push handle, which is inconvenient.

[0003] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the Invention

[0004] In view of the deficiencies in the prior art, the present invention aims to provide a baby stroller handle steering mechanism.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a baby stroller handle steering mechanism, comprising a drive shaft arranged at the rear of the baby stroller, the top end of the drive shaft is fixedly connected to the push handle, vertically arranged steering shafts are arranged on both sides of the front end of the baby stroller, a horizontally arranged crossbeam is fixedly connected inside the baby stroller, the steering shaft is passed through and rotatably connected to the crossbeam, the bottom end of the steering shaft is bent outward and connected to the front wheel, and a steering mechanism for driving the steering shaft to rotate is arranged between the drive shaft and the steering shaft inside the baby stroller.

[0006] The present invention is further configured as follows: the steering mechanism includes a mounting plate arranged in the baby carriage, one end surface of the mounting plate is rotatably connected to a rotating disk, the top ends of the two steering shafts are fixedly connected to a connecting plate, the ends of the two connecting plates are hinged with connecting rods, one of the connecting plates is located at one end of the steering shaft and is integrally formed with a drive plate perpendicular to the connecting plate, a drive rod is fixedly connected between one side of the rotating disk and the end of the drive plate, and also includes a drive assembly for driving the rotating disk.

[0007] The present invention is further configured as follows: the drive assembly includes a sliding plate that is slidably connected to the surface of the mounting plate in a direction perpendicular to the drive rod, the drive shaft is rotatably connected to the mounting plate, a first gear is provided on the drive shaft, a first rack that is meshed with the first gear is provided on the surface of the sliding plate, a second gear is rotatably connected to the surface of the mounting plate between the sliding plate and the rotating disk, a second rack that is meshed with the second gear is provided at one end of the sliding plate, and a third gear that is meshed with the second gear is provided on the rotating disk.

[0008] The present invention is further configured such that: the top end of the drive shaft is inclined toward the rear end of the baby carriage, and the tooth surface of the first rack is arranged as an inclined surface, and its inclination angle is equal to the inclination angle of the drive shaft.

[0009] The present invention is further configured such that: the second rack is located on the side of the second gear facing the front wheel.

[0010] The present invention is further configured such that: the height of the second gear is higher than the upper surface of the sliding plate; and the end of the sliding plate is provided with a groove for the rotation shaft of the second gear to pass through.

[0011] The present invention is further configured such that: a passing groove for the rotation of the rotating disk and the third gear is formed on one end of the surface of the second rack facing the rotating disk.

[0012] The present invention is further configured such that baffles are provided at both ends of the surface of the mounting plate.

[0013] The present invention is further configured such that: the first gear and the third gear are sector gears.

[0014] The present invention has the following beneficial effects: when the baby carriage is operated, the push handle 2 drives the baby carriage to move forward and backward, and at the same time, the driving shaft is rotated and, under the action of the steering mechanism, the steering shaft is driven to rotate, thereby driving the front wheels to steer, which can conveniently control the steering of the baby carriage and facilitate operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the three-dimensional structure of this embodiment;

[0016] Figure 2 This is a schematic structural diagram of the drive assembly of this embodiment;

[0017] Figure 3 Schematic diagram of the structure of the sliding plate of this embodiment.

[0018] Description of the drawings: 1. Drive shaft; 2. Push handle; 3. Steering shaft; 4. Crossbeam; 5. Front wheel; 6. Mounting plate; 7. Turntable; 8. Connecting plate; 9. Connecting rod; 10. Drive plate; 11. Drive rod; 12. First gear; 13. First rack; 14. Second gear; 15. Second rack; 16. Third gear; 17. Groove; 18. Through slot; 19. Baffle; 20. Sliding plate. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0021] like Figure 1-3As shown, a baby stroller handle steering mechanism includes a drive shaft 1 arranged at the rear of the baby stroller, the top of the drive shaft 1 is fixedly connected to the push handle 2, vertically arranged steering shafts 3 are arranged on both sides of the front end of the baby stroller, a horizontally arranged crossbeam 4 is fixedly connected inside the baby stroller, the steering shaft 3 passes through and is rotatably connected to the crossbeam 4, the bottom end of the steering shaft 3 is bent outward and connected to the front wheel 5, and a steering mechanism for driving the steering shaft 3 to rotate is provided between the drive shaft 1 and the steering shaft 3 in the baby stroller.

[0022] When the baby carriage is operated, the push handle 2 is used to drive the baby carriage to move forward and backward. At the same time, the driving shaft 1 is rotated, and under the action of the steering mechanism, the steering shaft 3 is driven to rotate, thereby driving the front wheel 5 to steer, which can conveniently control the steering of the baby carriage and facilitate operation.

[0023] The steering mechanism includes a mounting plate 6 arranged in the baby carriage, and a rotating disk 7 is rotatably connected to the surface of one end of the mounting plate 6. The top ends of the two steering shafts 3 are fixedly connected to a connecting plate 8, and the ends of the two connecting plates 8 are hinged with a connecting rod 9. One of the connecting plates 8 is located at one end of the steering shaft 3 and is integrally formed with a driving plate 10 perpendicular to the connecting plate 8. A driving rod 11 is fixedly connected between one side of the rotating disk 7 and the end of the driving plate 10, and also includes a driving component for driving the rotating disk 7.

[0024] The driving assembly drives the rotating disk 7 to rotate, and under the action of the driving rod 11, drives the driving plate 10 and the connecting plate 8 connected to the driving plate 10 to deflect, thereby driving the steering shaft 3 to rotate, and under the action of the connecting rod 9, drives the other steering shaft 3 to rotate, and finally drives the two front wheels 5 to perform steering action.

[0025] The driving assembly includes a sliding plate 20 that is slidably connected to the surface of the mounting plate 6 in a direction perpendicular to the driving rod 11, and the driving shaft 1 is rotatably connected to the mounting plate 6. A first gear 12 is provided on the driving shaft 1, and a first rack 13 that is meshed with the first gear 12 is provided on the surface of the sliding plate 20. The first gear 12 is a fan-shaped gear. The surface of the mounting plate 6 is located between the sliding plate 20 and the rotating disk 7 and is rotatably connected to the second gear 14. A second rack 15 that is meshed with the second gear 14 is provided at one end of the sliding plate 20. The second rack 15 is located on the side of the second gear 14 facing the front wheel 5, so that the rotation direction of the push handle 2 corresponds to the steering direction of the front wheel 5, which is convenient for operation. A third gear 16 that is meshed with the second gear 14 is provided on the rotating disk 7. The third gear 16 is a fan-shaped gear.

[0026] When performing a steering operation, the driving shaft 1 is rotated by the push handle 2, and under the action of the first gear 12 and the first rack 13, the sliding plate 20 can be driven to slide. The second rack 15 is fixed to the sliding plate 20 and moves accordingly, so that the second rack 15 drives the second gear 14 to rotate, and under the drive of the third gear 16, the rotating disk 7 is finally controlled to rotate, thereby controlling the front wheel 5 to steer.

[0027] The top end of the drive shaft 1 is tilted toward the rear end of the baby carriage, and the tooth surface of the first rack 13 is inclined, and its inclination angle is equal to the inclination angle of the drive shaft 1. The inclined drive shaft 1 is convenient for pushing the baby carriage and operating it.

[0028] The height of the second gear 14 is higher than the upper surface of the sliding plate 20. A groove 17 is provided at the end of the sliding plate 20 for the rotation shaft of the second gear 14 to pass through. A through groove 18 is provided on the surface of the second rack 15 facing the rotating disk 7 at one end for the rotating disk and the third gear 16 to rotate, thereby ensuring the normal operation of the steering mechanism.

[0029] Baffles 19 are provided at both ends of the surface of the mounting plate 6. When the front wheel 5 turns to the maximum angle, the ends of the first rack 13 and the second rack 15 respectively abut against the two baffles 19 to limit the movement of the sliding plate 20 and thus limit the deflection angle of the front wheel 5.

[0030] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A baby stroller handlebar steering mechanism, characterized by: The baby stroller comprises a drive shaft (1) arranged at the rear of the baby stroller, the top end of the drive shaft (1) is fixedly connected to a push handle (2), vertically arranged steering shafts (3) are arranged on both sides of the front end of the baby stroller, a horizontally arranged crossbeam (4) is fixedly connected inside the baby stroller, the steering shaft (3) passes through and is rotatably connected to the crossbeam (4), the bottom end of the steering shaft (3) is bent outward and connected to a front wheel (5), and a steering mechanism for driving the steering shaft (3) to rotate is arranged between the drive shaft (1) and the steering shaft (3) inside the baby stroller; The steering mechanism comprises a mounting plate (6) arranged in the baby carriage, one end surface of the mounting plate (6) is rotatably connected to a rotating disk (7), the top ends of the two steering shafts (3) are fixedly connected to connecting plates (8), the ends of the two connecting plates (8) are hinged to connecting rods (9), one of the connecting plates (8) is located at one end of the steering shaft (3) and is integrally formed with a driving plate (10) perpendicular to the connecting plate (8), a driving rod (11) is fixedly connected between one side of the rotating disk (7) and the end of the driving plate (10), and also includes a driving assembly for driving the rotating disk (7); The driving assembly includes a sliding plate (20) slidably connected to the surface of the mounting plate (6) in a direction perpendicular to the driving rod (11); the driving shaft (1) is rotatably connected to the mounting plate (6); a first gear (12) is provided on the driving shaft (1); a first rack (13) meshing with the first gear (12) is provided on the surface of the sliding plate (20); a second gear (14) is rotatably connected to the surface of the mounting plate (6) between the sliding plate (20) and the rotating disk (7); a second rack (15) meshing with the second gear (14) is provided at one end of the sliding plate (20); and a third gear (16) meshing with the second gear (14) is provided on the rotating disk (7); The top end of the drive shaft (1) is inclined toward the rear end of the baby carriage, and the tooth surface of the first rack (13) is arranged in an inclined plane, with an inclination angle equal to the inclination angle of the drive shaft (1).

2. A baby stroller handle steering mechanism according to claim 1, characterized in that: The second rack (15) is located on the side of the second gear (14) facing the front wheel (5).

3. A baby stroller handle steering mechanism according to claim 2, characterized in that: The height of the second gear (14) is higher than the upper surface of the sliding plate (20), and a groove (17) for the rotation shaft of the second gear (14) to pass through is formed at the end of the sliding plate (20).

4. A baby stroller handle steering mechanism according to claim 3, characterized in that: A passing slot (18) for the rotation of the rotating disk and the third gear (16) is provided on one end of the surface of the second rack facing the rotating disk (7).

5. The baby stroller handle steering mechanism according to claim 4, characterized in that: Baffles (19) are provided at both ends of the surface of the mounting plate (6).

6. The baby stroller handle steering mechanism according to claim 5, characterized in that: The first gear (12) and the third gear (16) are sector gears.

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