Baby carriage push handle steering mechanism

Abstract

The invention discloses a baby carriage push handle steering mechanism, and relates to the technical field of baby carriages. According to the technical scheme, the baby carriage comprises a driving shaft arranged at the tail of the baby carriage, a push handle is fixedly connected to the top end of the driving shaft, steering shafts are vertically arranged on the two sides of the front end of the baby carriage, a horizontally-arranged cross beam is fixedly connected into the baby carriage, and the steering shafts penetrate through and are rotationally connected to the cross beam; the bottom end of the steering shaft is bent outwards and connected with a front wheel, and a steering mechanism used for driving the steering shaft to rotate is arranged between the driving shaft and the steering shaft in the baby carriage. The invention aims to provide a steering mechanism for a push handle of a baby carriage.

Description

Technical Field

[0001] The present invention relates to the technical field of baby carriages, and more specifically, it relates to a steering mechanism for the push handle of a baby carriage. Background Art

[0002] Existing baby carriages can be divided into electric baby carriages and push baby carriages according to the driving method. Push baby carriages generally have a push handle set up, and the baby carriage is pushed to move through the push handle. When the existing push baby carriage turns, generally, the whole baby carriage needs to be deflected through the push handle, which is rather inconvenient during turning.

[0003] Therefore, there is an urgent need for a new technical solution to solve the above technical problems. Summary of the Invention

[0004] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a steering mechanism for the push handle of a baby carriage.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: A steering mechanism for the push handle of a baby carriage includes a drive shaft arranged at the tail of the baby carriage. The top end of the drive shaft is fixedly connected with a push handle. On both sides of the front end of the baby carriage, there are vertically arranged steering shafts. Inside the baby carriage, there is a horizontally arranged cross beam fixedly connected. The steering shafts pass through and are rotatably connected to the cross beam. The bottom end of the steering shaft bends outward and is connected with a front wheel. Inside the baby carriage, between the drive shaft and the steering shaft, there is a steering mechanism for driving the steering shaft to rotate.

[0006] The present invention is further arranged as: The steering mechanism includes a mounting plate arranged inside the baby carriage. One end surface of the mounting plate is rotatably connected with a rotating disk. The top ends of the two steering shafts are fixedly connected with connecting plates. The ends of the two connecting plates are hinged with a connecting rod. One of the connecting plates integrally forms a driving plate perpendicular to the connecting plate at one end of the steering shaft. A driving rod is fixedly connected between one side of the rotating disk and the end of the driving plate. It also includes a driving component for driving the rotating disk.

[0007] The present invention is further arranged as: The driving component includes a sliding plate slidably connected to the surface of the mounting plate along a direction perpendicular to the driving rod. The drive shaft is rotatably connected to the mounting plate. A first gear is arranged on the drive shaft. A first rack meshing with the first gear is arranged 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 meshing with the second gear is arranged at one end of the sliding plate. A third gear meshing with the second gear is arranged on the rotating disk.

[0008] The present invention is further arranged as: The top end of the drive shaft inclines towards the tail end of the baby carriage. 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 a groove for passing the rotating shaft of the second gear is provided at the end of the sliding plate.

[0011] The present invention is further configured such that: a through groove for the rotating disc and the third gear to rotate is provided at one end of the surface of the second rack facing the rotating disc.

[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 controlling the baby carriage, while driving the baby carriage to move forward and backward through the push handle 2, by rotating the drive shaft and under the action of the steering mechanism, the steering shaft is driven to rotate, thereby driving the front wheel to turn, which can conveniently control the turning of the baby carriage and is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of this embodiment; Figure 2 is a structural schematic diagram of the drive assembly of this embodiment; Figure 3 is a structural schematic diagram of the sliding plate of this embodiment.

[0016] BRIEF DESCRIPTION OF THE DRAWINGS: 1. Drive shaft; 2. Push handle; 3. Steering shaft; 4. Cross beam; 5. Front wheel; 6. Mounting plate; 7. Rotating disc; 8. Connecting plate; 9. Connecting rod; 10. Driving plate; 11. Driving rod; 12. First gear; 13. First rack; 14. Second gear; 15. Second rack; 16. Third gear; 17. Groove; 18. Through groove; 19. Baffle; 20. Sliding plate. DETAILED DESCRIPTION OF THE EMBODIMENT

[0017] The present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Among them, the same parts 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 the directions in the drawings, and the terms "bottom surface" and "top surface", "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0019] Such as Figures 1-3As shown in the figure, a steering mechanism for a baby stroller handle includes 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 handle 2. On both sides of the front end of the baby stroller, there are vertically arranged steering shafts 3. A horizontally arranged crossbeam 4 is fixedly connected inside the baby stroller. The steering shafts 3 pass through and are rotatably connected to the crossbeam 4. The bottom end of the steering shaft 3 bends outward and is connected to a front wheel 5. Inside the baby stroller, between the drive shaft 1 and the steering shaft 3, there is a steering mechanism for driving the rotation of the steering shaft 3.

[0020] When operating the baby stroller, while driving the baby stroller to move forward and backward through the handle 2, by rotating the drive shaft 1 and under the action of the steering mechanism, the steering shaft 3 is driven to rotate, thereby driving the front wheel 5 to turn, which can conveniently control the turning of the baby stroller and is convenient for operation.

[0021] The steering mechanism includes a mounting plate 6 arranged inside the baby stroller. One end surface of the mounting plate 6 is rotatably connected to a rotating disc 7. The top ends of the two steering shafts 3 are fixedly connected to a connecting plate 8. The ends of the two connecting plates 8 are hinged to a connecting rod 9. At one end of one of the connecting plates 8 perpendicular to the connecting plate 8, a driving plate 10 is integrally formed. A driving rod 11 is fixedly connected between one side of the rotating disc 7 and the end of the driving plate 10. It also includes a driving component for driving the rotating disc 7.

[0022] The driving component drives the rotating disc 7 to rotate. Under the action of the driving rod 11, the driving plate 10 and the connecting plate 8 connected to the driving plate 10 are deflected, thereby driving the steering shaft 3 to rotate. And under the action of the connecting rod 9, the other steering shaft 3 is driven to rotate, and finally the two front wheels 5 perform a turning action.

[0023] The driving component includes a sliding plate 20 slidably connected to the surface of the mounting plate 6 along a direction perpendicular to the driving rod 11. The drive shaft 1 is rotatably connected to the mounting plate 6. A first gear 12 is arranged on the drive shaft 1. A first rack 13 meshing with the first gear 12 is arranged on the surface of the sliding plate 20. The first gear 12 is a sector gear. A second gear 14 is rotatably connected to the surface of the mounting plate 6 between the sliding plate 20 and the rotating disc 7. One end of the sliding plate 20 is provided with a second rack 15 meshing with the second gear 14. The second rack 15 is located on the side of the second gear 14 facing the front wheel 5, so that the turning direction of the handle 2 corresponds to the turning of the front wheel 5, which is convenient for operation. A third gear 16 meshing with the second gear 14 is arranged on the rotating disc 7. The third gear 16 is a sector gear.

[0024] When performing a steering operation, the drive shaft 1 is rotated by pushing the handle 2. 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 therewith, causing the second rack 15 to drive the second gear 14 to rotate, and ultimately controlling the rotation of the rotating disc 7 under the drive of the third gear 16, thereby controlling the front wheels 5 to steer.

[0025] The top end of the drive shaft 1 is inclined towards the rear end of the stroller. The tooth surface of the first rack 13 is provided as an inclined surface, and its inclination angle is equal to the inclination angle of the drive shaft 1. The inclined drive shaft 1 facilitates pushing and operating the stroller.

[0026] The height of the second gear 14 is higher than the upper surface of the sliding plate 20. A groove 17 for the rotation shaft of the second gear 14 to pass through is provided at the end of the sliding plate 20. A through groove 18 for the rotation of the rotating disc and the third gear 16 is provided at one end of the surface of the second rack 15 facing the rotating disc 7, ensuring the normal operation of the steering mechanism.

[0027] Baffles 19 are provided at both ends of the surface of the mounting plate 6. When the front wheels 5 are steered to the maximum angle, the end parts of the first rack 13 and the second rack 15 respectively abut against the two baffles 19, so as to limit the movement of the sliding plate 20 and limit the deflection angle of the front wheels 5.

[0028] The specific embodiments are only explanations of the present invention and are not limitations thereof. Those skilled in the art can make modifications without creative contributions to the embodiments according to needs after reading this specification, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A stroller handlebar steering mechanism, characterized in that: It includes a drive shaft (1) arranged at the tail of the stroller. A push handle (2) is fixedly connected to the top end of the drive shaft (1). Steering shafts (3) are vertically arranged on both sides of the front end of the stroller. A horizontally arranged cross beam (4) is fixedly connected inside the stroller. The steering shafts (3) pass through and are rotatably connected to the cross beam (4). The bottom ends of the steering shafts (3) are bent outward and connected to front wheels (5). A steering mechanism for driving the rotation of the steering shafts (3) is arranged between the drive shaft (1) and the steering shafts (3) inside the stroller.

2. The steering mechanism of a stroller handle according to claim 1, characterized in that: The steering mechanism includes a mounting plate (6) arranged inside the stroller. A rotating disc (7) is rotatably connected to one end surface of the mounting plate (6). Connecting plates (8) are fixedly connected to the top ends of the two steering shafts (3). A connecting rod (9) is hinged to the ends of the two connecting plates (8). A drive plate (10) perpendicular to the connecting plate (8) is integrally formed at one end of one of the connecting plates (8) located at one end of the steering shaft (3). A drive rod (11) is fixedly connected between one side of the rotating disc (7) and the end of the drive plate (10). It also includes a drive assembly for driving the rotating disc (7).

3. The steering mechanism of a baby stroller handle according to claim 2, wherein: The drive assembly includes a sliding plate (20) slidably connected to the surface of the mounting plate (6) along a direction perpendicular to the drive rod (11). The drive shaft (1) is rotatably connected to the mounting plate (6). A first gear (12) is arranged on the drive shaft (1). A first rack (13) meshing with the first gear (12) is arranged on the surface of the sliding plate (20). A second gear (14) is rotatably connected between the sliding plate (20) and the rotating disc (7) on the surface of the mounting plate (6). A second rack (15) meshing with the second gear (14) is arranged at one end of the sliding plate (20). A third gear (16) meshing with the second gear (14) is arranged on the rotating disc (7).

4. A stroller handlebar steering mechanism according to claim 3, characterized in that: The top end of the drive shaft (1) is inclined towards the tail end of the stroller. The tooth surface of the first rack (13) is arranged in an inclined plane, and its inclination angle is equal to the inclination angle of the drive shaft (1).

5. The steering mechanism of a baby carriage handle according to claim 4, characterized in that: The second rack (15) is located on the side of the second gear (14) facing the front wheel (5).

6. The steering mechanism of a baby carriage handle according to claim 5, characterized in that: The height of the second gear (14) is higher than the upper surface of the sliding plate (20). A groove (17) for the rotation shaft of the second gear (14) to pass through is provided at the end of the sliding plate (20).

7. The steering mechanism of a baby carriage handle according to claim 6, characterized in that: A through groove (18) for the rotation of the rotating disc and the third gear (16) is provided at one end of the surface of the second rack facing the rotating disc (7).

8. A stroller handlebar steering mechanism according to claim 7, characterized in that: Baffles (19) are arranged at both ends of the surface of the mounting plate (6).

9. The steering mechanism of a baby carriage handle according to claim 8, characterized in that: The first gear (12) and the third gear (16) are sector gears.

Images