A baby carriage swing mechanism and a baby carriage using the same

Abstract

The present invention discloses a baby carriage swing mechanism and a baby carriage using the swing mechanism, and relates to a baby carriage, and aims to solve the problem that the baby carriage does not have a swing function. The main points of the technical solution are: a baby carriage swing mechanism, comprising a swing motor and a swing shaft, wherein the swing shaft comprises an outer shaft and an inner shaft plugged into the outer shaft, wherein the swing motor drives the outer shaft to rotate, and eccentric motion components are respectively arranged at both ends of the outer shaft, wherein the eccentric motion components comprise an eccentric wheel fixed to the outer shaft, and a connecting seat rotatably sleeved on the eccentric wheel, wherein the connecting seat is installed on the baby carriage; the outer shaft is respectively extended at both ends of the inner shaft, and a driving wheel is rotatably sleeved, and the driving wheel is transmission-connected with a driving motor. A baby carriage swing mechanism of the present invention adopts a structure combining an eccentric wheel and a connecting seat to give the baby carriage a swing function.

Description

Technical Field

[0001] The present invention relates to a baby carriage, and more particularly to a baby carriage rocking mechanism and a baby carriage using the rocking mechanism. Background Art

[0002] A baby carriage is a tool vehicle for children to play with. There are various models, including five categories: children's bicycles, children's strollers, baby walkers, children's tricycles, and children's electric cars. Generally, children aged 1 to 2 years old play with baby carriages, and children over 2 years old play with toy cars with wheels. Baby carriages will bring certain benefits to children's intellectual development, increase children's brain development, and are of great benefit to children's future growth. Therefore, the shape of baby carriages is very beautiful, and in order to make the baby carriage more childish, movable parts can be made on the baby carriage so that the movable parts can move when the child drives the baby carriage, thereby making the baby carriage more childish and greatly improving the fun of the baby carriage.

[0003] The Chinese patent announcement with publication number CN211167232U applied by the applicant discloses a baby carriage with a swing function, and its technical highlights are: it includes a frame, a front wheel system, and a rear wheel system, the rear wheel system includes two power devices and a swing device, the swing device includes a swing motor, a swing reducer, and a swing shaft, the two ends of the swing shaft are respectively arranged on curved sections, the curved sections are respectively connected to the two power devices, the power device includes a power motor, a power reducer, and a rear wheel fixedly mounted on the power reducer.

[0004] The above scheme adopts a swing motor to drive the swing shaft to rotate, thereby utilizing the eccentric rotation of the curved section to give the baby stroller a swing function, solving the problem that the baby stroller does not have a swing function; another new scheme is now proposed to solve this problem. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a baby carriage rocking mechanism, which adopts a structure combining an eccentric wheel and a connecting seat to give the baby carriage a rocking function.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions: a baby carriage rocking mechanism, comprising a rocking motor and a rocking shaft, the rocking shaft comprising an outer shaft and an inner shaft plugged into the outer shaft, the rocking motor drives the outer shaft to rotate, eccentric motion components are respectively provided at both ends of the outer shaft, the eccentric motion components include an eccentric wheel fixed to the outer shaft, and a connecting seat rotatably sleeved on the eccentric wheel, the connecting seat is installed on the baby carriage; the outer shaft is extended from both ends of the inner shaft, and a driving wheel is rotatably sleeved thereon, and the driving wheel is transmission-connected to the driving motor.

[0007] By adopting the above-mentioned technical scheme, when the present application controls the baby stroller to enter the swing mode, the outer shaft is driven to rotate by the swing motor, and the outer shaft drives the eccentric wheel to rotate synchronously during the rotation process. The eccentric wheel changes the support height during the rotation process, thereby giving the baby stroller an up and down swing amplitude through the connecting seat; when the baby stroller needs to be driven to enter the driving mode, the driving motor controls the rotation of the driving wheel, so that the friction between the driving wheel and the ground gives the baby stroller forward kinetic energy; in summary, under the premise of normal driving forward, the present application adopts a structure combining an eccentric wheel and a connecting seat to give the baby stroller a swing function; it should also be noted that the present application adopts a structure combining an eccentric wheel and a connecting seat to replace the structure of the bent axle in the prior art, which can effectively allocate the task of supporting the vehicle body and the swing function, that is, the outer shaft undertakes the swing function, and the inner shaft undertakes the axle function. Compared with the prior art, the bent axle undertakes two functions at the same time, which not only effectively improves the load-bearing capacity, but also reduces the dimensional accuracy requirements for the swing axis.

[0008] The present invention is further configured as follows: the swing motor is provided with a swing gear box, both ends of the outer shaft pass through the swing gear box, the outer shaft is provided with a flower groove disk, and the swing gear box is provided with an output sleeve sleeved with the flower groove disk.

[0009] The present invention is further configured as follows: the cross section of the outer shaft is rectangular, the eccentric wheel is provided with a rectangular insertion hole, and the outer shaft is interference-connected in the rectangular insertion hole.

[0010] The present invention is further configured as follows: the rectangular insertion hole is penetrated at one end, and a through hole for the inner shaft to pass through is provided at the closed end.

[0011] The present invention is further configured as follows: the connecting seat is provided with a sleeve hole sleeved on the eccentric wheel, and the connecting seat is provided with limiting ring edges at both ends of the sleeve hole, and the limiting ring edges are used to clamp the eccentric wheel at both ends.

[0012] The present invention is further configured as follows: the outer circumferential surface of the eccentric wheel is provided with at least two connecting ring edges, and the connecting ring edges are rotatably fitted to the inner circumferential surface of the sleeve hole.

[0013] The present invention is further configured as follows: the connection seat is divided into two components, and the two components are provided with a plurality of screw holes for matching bolt assembly.

[0014] The present invention is further configured as follows: the drive motor is transmission-connected to a drive gear box, and the drive gear box faceplate is connected to a drive wheel.

[0015] In view of the deficiencies in the prior art, the present invention also aims to provide a baby carriage using a rocking mechanism to achieve integrated unified assembly, which is more suitable for modern assembly workshops and effectively improves the convenience of assembly.

[0016] The above technical purpose of the present invention is achieved through the following technical solutions: a baby stroller using a rocking mechanism, comprising a baby stroller body and a baby stroller rocking mechanism, wherein an integrated mounting shell is provided at the rear bottom surface of the baby stroller body, and the integrated mounting shell is provided with a mounting cavity opening downward for mounting the baby stroller rocking mechanism.

[0017] By adopting the above technical solution, during assembly in the workshop, the swing mechanism can be first installed on the integrated mounting shell, and then installed as a whole to the bottom surface of the baby carriage body, which effectively improves the convenience of assembly and improves the uniformity of spare parts. That is, different models only need to design the same integrated mounting shell installation area at the bottom of the body, so that a set of swing mechanisms can be adapted to the use of multiple models, effectively reducing production costs.

[0018] The present invention is further configured as follows: the installation cavity is bolted with two protective cover shells, and the two protective cover shells seal the open area of ​​the installation cavity.

[0019] The present invention is further configured as follows: the installation cavity is vertically provided with buffer grooves corresponding to the two connecting seats, the two connecting seats are slidably connected to the two buffer grooves, and a buffer spring is provided between the groove bottom of the buffer groove and the connecting seat.

[0020] In summary, the baby carriage rocking mechanism provided by the present invention has the following beneficial effects: under the premise of normal forward drive, the present application adopts a structure combining an eccentric wheel and a connecting seat to give the baby carriage a rocking function; it can effectively improve the load-bearing capacity and reduce the dimensional accuracy requirements for the rocking shaft; it can realize driving the outer shaft to rotate at the midpoint of the outer shaft, thereby ensuring the torque balance at both ends of the outer shaft; the connection between the outer shaft and the rocking gear box is realized through the flower groove plate and the output sleeve, thereby ensuring the connection strength between the rocking gear box and the outer shaft; the relative rotation activity of the outer shaft and the eccentric wheel is eliminated, thereby preventing the outer shaft and the eccentric wheel from slipping; the rectangular socket is limited to one end passing through, thereby realizing the insertion of the outer shaft and the positioning of the eccentric wheel, thereby ensuring the assembly accuracy of the outer shaft and the eccentric wheel; the activity of the connecting seat and the eccentric wheel along the central axis direction is eliminated, thereby ensuring the rotational connection stability of the connecting seat and the eccentric wheel; the connection amount between the eccentric wheel and the connecting seat is reduced, effectively reducing the friction resistance between the two, thereby improving the smoothness of relative rotation.

[0021] The baby carriage using a rocking mechanism provided by the present invention has the following beneficial effects: it realizes integrated and unified assembly, is more suitable for modern assembly workshops, and effectively improves the convenience of assembly; it improves the uniformity of spare parts and effectively reduces production costs; the open area of ​​the installation cavity is closed by two protective covers, thereby ensuring the sealing of the bottom of the baby carriage; it effectively eliminates the sense of frustration during the rocking function, thereby improving the comfort of the baby carriage in the rocking state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the first embodiment;

[0023] Figure 2 It is an exploded view of the first embodiment;

[0024] Figure 3 This is a diagram showing the matching relationship between the swing shaft and the eccentric motion assembly of the first embodiment, and the diagram is half-sectioned for ease of representation;

[0025] Figure 4 It is a schematic diagram of the overall structure of the second embodiment;

[0026] Figure 5 This is a schematic diagram of the structure of the baby carriage after the body of the baby carriage is disassembled according to the second embodiment. For the convenience of illustration, the protective cover in this figure is subjected to explosion treatment;

[0027] Figure 6 For Example 2 Figure 5 A half-section view of what is shown.

[0028] Description of the drawings: 1. Swing motor; 3. Swing shaft; 4. Outer shaft; 5. Inner shaft; 6. Connecting seat; 61. Eccentric wheel; 7. Driving wheel; 8. Driving motor; 9. Swing gearbox; 10. Flower slot plate; 11. Output sleeve; 12. Rectangular jack; 13. Through hole; 14. Socket hole; 15. Limiting ring edge; 16. Connecting ring edge; 17. Screw hole; 18. Driving gearbox; 19. Baby carriage body; 20. Integrated mounting shell; 21. Mounting cavity; 22. Protective cover shell; 23. Buffer groove; 24. Buffer spring. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiment 1: A baby carriage rocking mechanism, such as Figure 1 , Figure 2 As shown, it includes a swing motor 1 and a swing shaft 3. The swing shaft 3 includes an outer shaft 4 and an inner shaft 5 inserted into the outer shaft 4. The swing motor 1 drives the outer shaft 4 to rotate. Eccentric motion components are respectively installed at both ends of the outer shaft 4. The eccentric motion components include an eccentric wheel 61 fixed to the outer shaft 4, and a connecting seat 6 rotatably sleeved on the eccentric wheel 61. The connecting seat 6 is installed on the baby carriage; both ends of the inner shaft 5 extend out of the outer shaft 4, and are rotatably sleeved with a driving wheel 7, which is transmission-connected to a driving motor 8.

[0031] When the baby carriage is controlled to enter the swing mode, the swing motor 1 drives the outer shaft 4 to rotate. During the rotation, the outer shaft 4 drives the eccentric wheel 61 to rotate synchronously. The eccentric wheel 61 changes the support height during the rotation, thereby giving the baby carriage an up and down swing amplitude through the connecting seat 6; when the baby carriage needs to be driven to the driving mode, the driving motor 8 controls the driving wheel 7 to rotate, so that the friction between the driving wheel 7 and the ground gives the baby carriage forward kinetic energy; in summary, under the premise of normal driving forward, the present application adopts a structure combining the eccentric wheel 61 and the connecting seat 6 to give the baby carriage a swing function; it should also be noted that the present application adopts a structure combining the eccentric wheel 61 and the connecting seat 6 to replace the structure of the bent axle in the prior art, which can effectively allocate the task of supporting the vehicle body and the swing function, that is, the outer shaft 4 undertakes the swing function, and the inner shaft 5 undertakes the axle function. Compared with the prior art, the bent axle undertakes two functions at the same time, which not only effectively improves the load-bearing capacity, but also reduces the dimensional accuracy requirements for the swing shaft.

[0032] The swing motor 1 drives the outer shaft 4 to rotate in the following manner: Figure 1 , Figure 2 As shown, the swing motor 1 is connected to the swing gear box 9, and both ends of the outer shaft 4 pass through the swing gear box 9. The swing gear box 9 is added for transmission, so as to realize driving the outer shaft to rotate at the midpoint of the outer shaft 4, thereby ensuring the torque balance at both ends of the outer shaft; it should be noted that the outer shaft 4 is sleeved and welded with a flower groove disk 10, and the swing gear box 9 is provided with an output sleeve 11 sleeved with the flower groove disk 10, so as to ensure the connection strength between the swing gear box 9 and the outer shaft 4.

[0033] To prevent the outer shaft 4 and the eccentric wheel 61 from slipping, Figure 2 , Figure 3 As shown, the cross section of the outer shaft 4 is rectangular, the eccentric wheel 61 is provided with a rectangular insertion hole 12, and the outer shaft 4 is inserted into the rectangular insertion hole 12 with interference fit, thereby eliminating the relative rotational mobility between the outer shaft 4 and the eccentric wheel 61, thereby preventing the outer shaft 4 and the eccentric wheel 61 from slipping.

[0034] To ensure the assembly accuracy of the outer shaft 4 and the eccentric wheel 61, Figure 3 As shown, the rectangular socket 12 is penetrated at one end, so that when the outer shaft 4 is inserted into the closed end that is close to the rectangular socket 12, the assembly accuracy of the outer shaft 4 and the eccentric wheel 61 can be ensured. It should be noted that the closed end of the rectangular socket 12 is integrally formed with a through hole 13 for the inner shaft 5 to pass through, thereby ensuring that the inner shaft 5 can smoothly pass through the eccentric motion component.

[0035] To ensure the rotational connection stability between the connecting seat 6 and the eccentric wheel 61, as Figure 2 , Figure 3As shown, the connecting seat 6 is integrally formed with a sleeve hole 14 which is sleeved on the eccentric wheel 61, and the connecting seat 6 is integrally formed with a limiting ring edge 15 at both ends of the sleeve hole 14. The limiting ring edge 15 clamps the eccentric wheel 61 at both ends, thereby eliminating the mobility of the connecting seat 6 and the eccentric wheel 61 along the central axis direction, so that the two have only relative rotational mobility, thereby ensuring the rotational connection stability of the connecting seat 6 and the eccentric wheel 61.

[0036] In order to improve the relative rotation smoothness of the eccentric wheel 61 and the connecting seat 6, as Figure 2 , Figure 3 As shown, the outer circumferential surface of the eccentric wheel 61 is integrally formed with at least two connecting ring edges 16, which rotate to fit the inner circumferential surface of the sleeve hole 14, thereby reducing the connection amount between the eccentric wheel 61 and the connecting seat 6, effectively reducing the friction resistance between the two, and thereby improving the smoothness of relative rotation.

[0037] In order to avoid interference with the assembly of the eccentric wheel 61 and the connecting seat 6 due to the setting of the limiting ring edge 15, as shown in FIG. Figure 2 As shown, the connecting seat 6 is divided into two components, and the two parts are provided with a plurality of screw holes 17 for matching bolt assembly. By separating the two parts of the connecting seat 6, the eccentric wheel 61 can be covered, thereby ensuring smooth assembly of the two.

[0038] The driving motor 8 drives the driving wheel 7 in the following manner: Figure 1 As shown, the driving motor 8 is transmission-connected to the driving gear box 18, and the disc of the driving gear box 18 is connected to the driving wheel 7, so that the driving wheels 7 on both sides are driven by one driving motor 8 respectively, which effectively improves the driving force.

[0039] Embodiment 2: A baby carriage using a rocking mechanism, such as Figure 4 , Figure 5 As shown, it includes a baby carriage body 19 and the baby carriage rocking mechanism disclosed in the first embodiment. An integrated mounting shell 20 is embedded and bolted to the rear of the bottom surface of the baby carriage body 19. The integrated mounting shell 20 is integrally formed with a mounting cavity 21 opening downward for mounting the baby carriage rocking mechanism.

[0040] When the present application is assembled in a workshop, the swing mechanism can be first installed on the integrated mounting shell 20, and then installed as a whole on the bottom surface of the baby carriage body 19, thereby realizing integrated unified assembly, which is more suitable for modern assembly workshops, effectively improving the convenience of assembly, and improving the uniformity of spare parts, that is, different models only need to design the same integrated mounting shell installation area at the bottom of the body, so that a set of swing mechanisms can be adapted to the use of multiple models, effectively reducing production costs.

[0041] To prevent the rocking mechanism from being exposed to the ground and causing stones and other debris to enter, Figure 4 , Figure 5As shown, two protective covers 22 are bolted to the installation cavity 21 , and the two protective covers 22 close the open area of ​​the installation cavity 21 , thereby ensuring the sealing of the bottom of the baby carriage.

[0042] To improve the comfort of the baby stroller in the swing state, Figure 6 As shown, the mounting cavity 21 corresponds to two connecting seats 6 and are respectively vertically integrally formed with buffer grooves 23, and the two connecting seats 6 are respectively slidably connected to the two buffer grooves 23, and buffer springs 24 are padded between the bottom of the buffer groove 23 and the connecting seats 6, thereby realizing an elastic connection between the connecting seats 6 and the baby carriage body 19. Compared with a rigid connection, it effectively eliminates the sense of frustration during the swinging function, thereby improving the comfort of the baby carriage in the swinging state.

[0043] 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 modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A baby carriage rocking mechanism, comprising a rocking motor (1) and a rocking shaft (3), characterized in that: The swing shaft (3) comprises an outer shaft (4) and an inner shaft (5) plugged into the outer shaft (4); the swing motor (1) drives the outer shaft (4) to rotate; eccentric motion components are respectively arranged at both ends of the outer shaft (4); the eccentric motion components comprise an eccentric wheel (61) fixed to the outer shaft (4) and a connecting seat (6) rotatably sleeved on the eccentric wheel (61); the connecting seat (6) is mounted on the baby carriage; both ends of the inner shaft (5) extend out of the outer shaft (4) respectively and are rotatably sleeved with a driving wheel (7); the driving wheel (7) is transmission-connected to a driving motor (8).

2. A baby carriage rocking mechanism according to claim 1, characterized in that: The swing motor (1) is provided with a swing gear box (9), both ends of the outer shaft (4) pass through the swing gear box (9), the outer shaft (4) is provided with a flower groove disc (10), and the swing gear box (9) is provided with an output sleeve (11) sleeved with the flower groove disc (10).

3. A baby carriage rocking mechanism according to claim 1, characterized in that: The cross section of the outer shaft (4) is rectangular, the eccentric wheel (61) is provided with a rectangular insertion hole (12), and the outer shaft (4) is interference-inserted into the rectangular insertion hole (12).

4. A baby carriage rocking mechanism according to claim 3, characterized in that: The rectangular insertion hole (12) is penetrated at one end, and a through hole (13) is provided at the closed end thereof for the inner shaft (5) to pass through.

5. The baby carriage rocking mechanism according to claim 1, characterized in that: The connecting seat (6) is provided with a sleeve hole (14) sleeved on the eccentric wheel (61), and the connecting seat (6) is provided with limit ring edges (15) at both ends of the sleeve hole (14), and the limit ring edges (15) are used to clamp the eccentric wheel (61) at both ends.

6. A baby carriage rocking mechanism according to claim 5, characterized in that: The outer circumferential surface of the eccentric wheel (61) is provided with at least two connecting ring edges (16), and the connecting ring edges (16) are rotatably fitted to the inner circumferential surface of the sleeve hole (14).

7. A baby carriage rocking mechanism according to claim 5, characterized in that: The connecting seat (6) is divided into two components, and the two components are provided with a plurality of screw holes (17) for matching with bolts for assembly.

8. The baby carriage rocking mechanism according to claim 1, characterized in that: The driving motor (8) is drivingly connected to a driving gear box (18), and the faceplate of the driving gear box (18) is connected to the driving wheel (7).

9. A baby carriage using a rocking mechanism, comprising a baby carriage body (19), characterized in that: It also includes a baby carriage rocking mechanism as described in any one of claims 1 to 8, wherein an integrated mounting shell (20) is provided at the rear bottom of the baby carriage body (19), and the integrated mounting shell (20) is provided with a mounting cavity (21) opening downward for mounting the baby carriage rocking mechanism.

10. A baby carriage using a rocking mechanism according to claim 9, characterized in that: The installation cavity (21) is bolted with two protective covers (22), and the two protective covers (22) close the open area of ​​the installation cavity (21).

11. A baby carriage with a rocking mechanism according to claim 9, characterized in that: The mounting cavity (21) is vertically provided with buffer grooves (23) corresponding to the two connecting seats (6), the two connecting seats (6) are slidably connected to the two buffer grooves (23), and a buffer spring (24) is provided between the groove bottom of the buffer groove (23) and the connecting seat (6).

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