Driving mechanism of electric baby stroller

Abstract

The invention relates to an electric baby stroller driving mechanism which solves the problems that manual pushing is strenuous, a baby stroller is single in function and the like in the prior art, according to the technical scheme, the electric baby stroller driving mechanism comprises a base frame and wheels arranged on the base frame, the base frame is used for being arranged on a baby stroller, a power source is arranged on the base frame, and a driving mechanism is arranged on the wheels. The driving mechanism is electrically connected with the power supply and is used for driving the wheels to act; and a control mechanism is arranged on the base frame, is matched with the power supply and / or the driving mechanism and is used for controlling at least one of on-off of the power supply, control of a wheel movement mode and control of start and stop of the driving mechanism. The baby stroller has the advantages that power is provided for the driving mechanism through the power source, manual driving is changed into electric driving, the control mechanism controls at least one of on-off of the power source, the movement mode of the wheels and starting and stopping of the driving mechanism, the wheels can be controlled to roll stably or roll in a rocking cradle mode, and the running modes of the baby stroller are more diversified.

Description

Technical Field

[0001] The invention relates to the field of driving wheels, and in particular to a driving mechanism of an electric baby stroller. Background Art

[0002] Existing baby strollers include a baby stroller body and wheels arranged at the bottom of the baby stroller body. When in use, people apply a force to the baby stroller body, and the baby stroller body moves under the influence of the force. If the baby stroller is pushed for a long time, it is quite strenuous and easy to get tired. In addition, the movement mode of the baby stroller is relatively simple, and the most common one is smooth movement, which is conducive to the baby sitting or lying in the baby stroller to rest and sleep. However, when the baby is awake, the baby stroller that is pushed smoothly is relatively boring, and the baby is prone to crying. For this reason, a rocking baby stroller has appeared. During the pushing process, the baby stroller rises and falls while moving forward, forming a rocking baby stroller. For this baby stroller, it is still pushed by manpower, and there is also the problem of being relatively strenuous. Summary of the invention

[0003] The object of the present invention is to solve the above-mentioned problems existing in the prior art and to provide an electric baby stroller driving mechanism, which is applied to a baby stroller, wherein a power supply is used to provide power for the driving mechanism, thereby changing human drive into electric drive, and controlling at least one of power on and off, wheel movement mode and start and stop of the driving mechanism through a control mechanism. Furthermore, the control mechanism can control the wheels to roll smoothly or in a rocking manner, thereby making the operation mode of the baby stroller more diversified, increasing interest, being conducive to entertaining infants and young children, being conducive to adults raising infants and young children more easily and reducing the intensity of raising infants and young children, and being conducive to people's physical and mental health.

[0004] The above technical objectives of the present invention are mainly solved by the following technical solutions: an electric baby stroller driving mechanism, comprising a base frame, and wheels arranged on the base frame, wherein the base frame is used to be arranged on the baby stroller, and the wheels are used to drive the baby stroller to move, characterized in that:

[0005] The base frame is provided with a power supply, and the wheel is provided with a driving mechanism, the driving mechanism is electrically connected to the power supply, and the driving mechanism is used to drive the wheel to move;

[0006] The base frame is provided with a control mechanism, and the control mechanism cooperates with the power supply and / or the driving mechanism to control the on and off of the power supply, the movement mode of the wheels, and at least one of the start and stop of the driving mechanism. The overall structure of the technical solution is reasonable, and when applied to a baby stroller, the operation is simple, convenient and flexible. When in use, the driving mechanism is powered by the power supply, and the baby stroller is changed from being pushed manually to being driven electrically by the driving mechanism. The on and off of the power supply, the movement mode of the wheels, and at least one of the start and stop of the driving mechanism are controlled by the control mechanism. Generally speaking, the power supply can be turned on and off by the control mechanism, and a power switch can also be set at a convenient operating position such as the armrest of the baby stroller. The control mechanism controls the working mode of the driving mechanism, and can control the wheels to roll smoothly (for pushing the baby stroller smoothly) or roll in a rocking manner (for making the baby stroller rock forward in a rocking manner), thereby making the operation modes of the baby stroller more diverse. When pushing the baby stroller smoothly, it is beneficial for infants to relax, rest and sleep. When pushing the baby stroller in a rocking manner, it is beneficial to increase the fun and entertain the infants, so that the infants prefer to sit or lie in the baby stroller, which is beneficial to freeing adults, making it easier for adults to raise children, reducing the intensity of raising children, and beneficial to the physical and mental health of adults.

[0007] As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures:

[0008] There are two wheels, and each wheel is provided with a group of driving mechanisms and a group of control mechanisms. The driving mechanisms and control mechanisms on the same wheel are controlled and coordinated one by one; the braking mechanism and the longitudinal swing mechanism on the same group of control mechanisms are used to control the start and stop of the corresponding driving mechanism and control the corresponding wheel to roll smoothly or roll in a rocking manner; there is a synchronization mechanism between the two groups of control mechanisms, and the synchronization mechanism is used to make the two groups of control mechanisms move synchronously. The wheels involved in this technical solution are arranged in the rear direction of the baby stroller (i.e., the rear wheels, using a double rear wheel method, which is beneficial to improve the stability of the baby stroller), and each wheel is driven by its own driving mechanism and control mechanism, which is beneficial to improve the synchronization and stability of each wheel when the baby stroller is pushed, and is beneficial to improve the operational reliability. In this technical solution, in order to simplify the structure, an external control component (i.e., a foot control) is provided on a group of control mechanisms to manipulate the foot control, and the two groups of control mechanisms can be controlled simultaneously and accordingly through the synchronization mechanism, so that the two groups of driving mechanisms can perform the same action at the same time, and the purpose of synchronous action of the two wheels is achieved.

[0009] Preferably, each of the wheels is connected to the base frame through a corresponding control seat, the control mechanism is arranged on the control seat, the hub motors on each group of the drive mechanisms cooperate with the power supply and the control mechanism, each of the hub motors is arranged on the corresponding wheel hub, and the wheel axle of the wheel cooperates with the control seat after passing through the hub motor. In order to improve the shock absorption effect of the wheel, a damping spring is arranged between the base frame and the control seat. In order to achieve the purpose of easy disassembly and assembly of the wheel, a wheel axle clamping mechanism is arranged on the control seat, a clamping groove is arranged at the clamping end of the wheel axle, and a clamping hoop with a variable inner diameter on the wheel axle clamping mechanism cooperates with the clamping groove. When assembling the wheel, the wheel axle clamping mechanism is manipulated to increase the inner diameter of the clamping hoop, the wheel axle is inserted into the clamping hoop, the clamping hoop is located at the clamping groove, the wheel axle clamping mechanism is loosened, the clamping hoop loses its force, the clamping hoop is reset, the inner diameter becomes smaller, and the clamping hoop is embedded in the clamping groove. At this time, the wheel cooperates with the control seat through the wheel axle clamping mechanism, and the wheel axle and the clamping hoop can rotate. On the contrary, the same operation can be performed to remove the wheels, which helps to reduce the occupied volume and facilitate packaging, storage and transportation.

[0010] Preferably, the control mechanism includes a foot control arranged on the control seat, and the foot control includes a rotating shell and a foot control outer lug fixed on the rotating shell, and the rotating shell cooperates with the braking mechanism, the longitudinal swing mechanism and the synchronization mechanism, and is used to control the operation of the braking mechanism, the longitudinal swing mechanism and the synchronization mechanism by rotating the rotating shell by stepping on the foot control outer lug.

[0011] Preferably, the synchronization mechanism includes a synchronous traction rope, and the two ends of the synchronous traction rope are respectively connected to the corresponding foot controls on the two wheels, and the two ends of the synchronous traction rope have a forward traction end and a reverse traction end, and the forward traction end and the reverse traction end of the same end are respectively arranged on the forward steering part and the reverse steering part of the rotating shell. In order to ensure the service life and synchronous traction performance of the synchronous traction rope, the synchronous traction rope adopts a steel rope. When the outer lug of the foot control is stepped on to make the rotating shell rotate forward, the forward traction end moves with the rotation of the rotating shell, which is used to realize the positive synchronous traction of the synchronous traction rope (including triggering the braking mechanism to brake the wheel hub motor and triggering the longitudinal swing mechanism to realize the rocking car mode), and vice versa, the reverse synchronous traction of the synchronous traction rope is realized (including contacting the braking mechanism to brake the wheel hub motor and releasing the longitudinal swing mechanism to realize the rocking car mode).

[0012] Preferably, the braking mechanism includes a brake seat, a brake shaft arranged on the brake seat, the outer end of the brake seat cooperates with the inner wall of the rotating shell to form a brake adjustment structure, the circumferential rotation of the rotating shell (i.e., positive rotation, such as stepping on the outer lug of the foot control to rotate the rotating shell clockwise) triggers the brake adjustment structure to push the brake shaft to move axially, so that the brake shaft is inserted into the brake hole on the hub motor for braking, the rotating shell is circumferentially rotated and reset (i.e., reverse rotation, such as releasing the outer lug of the foot control to reset the rotating shell counterclockwise), and the brake shaft is separated from the hub motor for braking release.

[0013] Preferably, the brake adjustment structure comprises a flat mouth tip disposed at the end of the brake shaft, and an arc-shaped concave and convex ridge disposed inside the rotating shell, wherein the flat mouth tip cooperates with the concave and convex ridge, and the rotating shell rotates circumferentially to make the convex or concave portion on the concave and convex ridge cooperate with the flat mouth tip, so that the brake shaft moves axially for braking or releasing the brake. The head of the flat mouth tip is in a straight line shape, which is conducive to improving the stability of cooperation with the concave and convex ridge, thereby facilitating improving the working reliability of the brake adjustment structure.

[0014] Preferably, a plurality of the brake holes are arranged on the housing of the hub motor, the brake holes are distributed in a circumference, and the spacing between adjacent brake holes is balanced. A plurality of brake holes are arranged in the circumferential direction, so that the brake shaft can be inserted into the corresponding brake hole to realize brake control at any time by stepping on the foot control.

[0015] Preferably, the longitudinal swing mechanism includes a swing seat, a return spring, and a linkage shaft arranged on the control seat, a limiting arc-shaped groove arranged on the control seat, and a protrusion arranged on the inner wall of the rotating shell. The end face of the swing seat facing the inner wall of the rotating shell is a concave-convex wedge surface, and the protrusion cooperates with the concave-convex wedge surface. The return spring is arranged between the swing seat and the control seat, the outer end of the linkage shaft is fixed on the swing seat, and the inner end passes through the limiting arc-shaped groove and cooperates with the wheel hub motor. The linkage shaft swings back and forth in the limiting arc-shaped groove to drive the wheel hub motor and the wheel to swing longitudinally, so that the wheel can achieve a rocking car-like rolling.

[0016] Preferably, the control seat is provided with an assembly groove, the assembly groove is provided with a pivot, the swing seat, the return spring and the linkage shaft are arranged in the assembly groove, the swing seat is provided with an axial hole, the pivot is inserted into the axial hole, so that the swing seat rotates with the pivot as the axis, and the corresponding side wall of the wheel hub motor is provided with a plurality of swing holes, the swing holes are long strip holes with arc-shaped transitions at both ends arranged along the radial direction, and the swing holes are centrally symmetrically distributed with the wheel hub motor as the symmetry center. The cross section of the control seat is fan-shaped, and the shape and size of the assembly groove are adapted to the shape and size of the control seat.

[0017] The invention has the following beneficial effects: 1. It is applied to a baby stroller, and the power supply is used to provide power for the driving mechanism, and the human drive is changed to electric drive. The power supply is controlled by the control mechanism, the wheel movement mode is controlled, and the start and stop of the driving mechanism are controlled. 2. The control mechanism can control the wheels to roll smoothly or roll in a rocking manner, so that the operation mode of the baby stroller is more diversified, the use interest is improved, it is conducive to entertaining infants and young children, and it is conducive to adults to raise babies more easily, reduce the intensity of raising, and improve the physical and mental health of adults. 3. The synchronization mechanism is conducive to improving the synchronization of the two wheel movements, thereby helping to improve the stability of the baby stroller, and can avoid the baby stroller from overturning, which is conducive to improving the safety of use. 4. Through the foot control, it is convenient for users to control the control mechanism by stepping on the foot, avoiding the inconvenience caused by bending over to control, which is conducive to improving the convenience and comfort of control. 5. The foot control is used to brake or adjust the wheels to roll smoothly or roll in a rocking manner, which is simple, convenient and reliable to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of a local explosion structure of the present invention.

[0020] Figure 3 It is another schematic diagram of the partial explosion structure of the present invention.

[0021] Figure 4 The invention discloses a schematic diagram of an exploded structure of a wheel.

[0022] Figure 5 is Figure 4 A structural diagram of further explosion based on .

[0023] Figure 6 The invention discloses an exploded structural diagram of the foot control device in cooperation with a braking mechanism and a longitudinal swing mechanism.

[0024] Figure 7 The invention discloses a structural schematic diagram of the cooperation between a foot control, a braking mechanism and a longitudinal swing mechanism.

[0025] Figure 8 The invention discloses a structural schematic diagram of a control seat.

[0026] Fig. 9 The invention discloses a structural schematic diagram of a control seat.

[0027] In the figure: 1. base frame; 2. wheel; 3. power supply; 4. control seat; 5. hub motor; 6. wheel axle; 7. wheel axle clamping mechanism; 8. shock-absorbing spring; 9. foot control unit; 10. rotating shell; 11. foot control outer lug; 12. synchronous traction rope; 13. positive traction end; 14. reverse traction end; 15. brake seat; 16. brake shaft; 17. brake hole; 18. flat mouth tip; 19. concave and convex ridges; 20. swing seat; 21. return spring; 22. positioning outward end; 23. positioning plane; 24. positioning groove; 25. linkage shaft; 26. concave and convex wedge surface; 27. protrusion; 28. limit arc groove; 29. ​​assembly groove; 30. pivot; 31. shaft hole; 32. swing hole. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0029] Example: Figure 1-Figure 9 As shown, an electric baby stroller driving mechanism comprises a base frame 1 and wheels 2 arranged on the base frame 1. The base frame 1 is used to be arranged on the baby stroller, and the wheels 2 are used to drive the baby stroller to move.

[0030] The difference between this technical solution and the prior art is that: the base frame 1 is provided with a power supply 3, the wheel 2 is provided with a driving mechanism, the driving mechanism is electrically connected to the power supply 3, and the driving mechanism is used to drive the wheel 2 to move; the base frame 1 is provided with a control mechanism, the control mechanism cooperates with the power supply 3 and / or the driving mechanism, and is used to control at least one of the power supply 3 on and off, the wheel movement mode, and the start and stop of the driving mechanism. The overall structure of this technical solution is reasonable, and when applied to a baby stroller, the operation is simple, convenient and flexible.

[0031] When in use, the power source 3 provides power to the driving mechanism, and the baby stroller is driven by the driving mechanism instead of being pushed manually. The control mechanism controls at least one of the power source 3 on and off, the wheel movement mode, and the start and stop of the driving mechanism. In this embodiment, the control mechanism can control the power source 3 on and off, the wheel movement mode, and the start and stop of the driving mechanism.

[0032] In addition, generally speaking, the power source 3 can be turned on and off by a control mechanism, or a switch for the power source 3 can be provided at a convenient operating position such as an armrest of the baby stroller.

[0033] In the present technical solution, the control mechanism controls the working mode of the driving mechanism, and can control the wheels 2 to roll smoothly (for pushing the baby stroller smoothly) or roll in a rocking manner (for making the baby stroller rock forward in a rocking manner), thereby making the operation modes of the baby stroller more diverse. When pushing the baby stroller smoothly, it is beneficial for infants to relax, rest and sleep. When pushing the baby stroller in a rocking manner, it is beneficial to increase the fun and entertain the infants, so that the infants prefer to sit or lie in the baby stroller, which is beneficial to freeing adults, making it easier for adults to raise children, reducing the intensity of raising children, and beneficial to the physical and mental health of adults.

[0034] In practical applications, the electric baby stroller driving mechanism involved in the present technical solution can be arranged at the front end of the baby stroller to form the front driving wheel 2, or can be arranged at the rear end of the baby stroller to form the rear driving wheel 2.

[0035] In the present technical solution, the power supply 3 is arranged on the base frame 1. When the electric baby stroller driving mechanism is applied to the baby stroller, the power supply 3 can be conveniently hidden in the storage frame (or storage basket) at the bottom of the baby stroller, which is beneficial to improving the visual effect of the baby stroller.

[0036] Next, we will explain the above scheme in detail:

[0037] In actual application, there are two wheels 2, and each wheel 2 is provided with a group of the driving mechanism and a group of the control mechanism. The driving mechanism and the control mechanism on the same wheel 2 are controlled and coordinated one by one; the braking mechanism and the longitudinal swing mechanism on the same group of the control mechanism are used to control the start and stop of the corresponding driving mechanism and control the corresponding wheel 2 to roll smoothly or roll in a rocking manner; there is a synchronization mechanism between the two groups of the control mechanisms, and the synchronization mechanism is used to make the two groups of the control mechanisms move synchronously.

[0038] In the present technical solution, the electric baby stroller driving mechanism is preferably arranged at the rear end of the baby stroller, that is, the wheel 2 involved in the present technical solution is arranged in the rear direction of the baby stroller (that is, the rear wheel, using a double rear wheel method is beneficial to improve the stability of the baby stroller).

[0039] In the present technical solution, each wheel 2 is driven by its own driving mechanism and control mechanism, which is beneficial to improving the synchronization and stability of each wheel 2 when the baby stroller is pushed, and is beneficial to improving the operational reliability. In the present technical solution, in order to simplify the structure, an external control component, i.e., a foot control 9, is provided on one set of control mechanisms, and the foot control 9 is operated and the two sets of control mechanisms are controlled to respond simultaneously through the synchronization mechanism, so that the two sets of driving mechanisms can perform the same action at the same time, and the purpose of synchronous action of the two wheels 2 is achieved.

[0040] In actual application, each of the wheels 2 is connected to the base frame 1 through a corresponding control seat 4, the control mechanism is arranged on the control seat 4, the hub motor 5 on each group of the driving mechanism cooperates with the power supply 3 and the control mechanism, and each of the hub motors 5 is respectively arranged on the hub of the corresponding wheel 2, and the axle 6 of the wheel 2 passes through the hub motor 5 and cooperates with the control seat 4.

[0041] In practical applications, in order to improve the shock-absorbing effect of the wheel 2 , a damping spring 8 is arranged between the base frame 1 and the control seat 4 .

[0042] In actual application, in order to facilitate the disassembly and assembly of the wheel 2, a wheel axle clamping mechanism 7 is provided on the control seat 4, a clamping groove is provided at the clamping end of the wheel axle 6, and a clamping hoop with a variable inner diameter on the wheel axle clamping mechanism 7 cooperates with the clamping groove. When assembling the wheel 2, the wheel axle clamping mechanism 7 is manipulated to increase the inner diameter of the clamping hoop, the wheel axle 6 is inserted into the clamping hoop, the clamping hoop is located at the clamping groove, the wheel axle clamping mechanism 7 is loosened, the clamping hoop loses its force, the clamping hoop is reset, the inner diameter becomes smaller, and the clamping hoop is embedded in the clamping groove. At this time, the wheel 2 is matched with the control seat 4 through the wheel axle clamping mechanism 7, and the wheel axle 6 and the clamping hoop can rotate. Conversely, the same operation can disassemble the wheel 2, which is conducive to reducing the occupied volume and facilitating packaging, storage, and transportation.

[0043] In actual application, the control mechanism includes a foot control 9 arranged on the control seat 4, and the foot control 9 includes a rotating shell 10 and a foot control outer lug 11 fixed on the rotating shell 10. The rotating shell 10 cooperates with the braking mechanism, the longitudinal swing mechanism and the synchronization mechanism, and is used to control the operation of the braking mechanism, the longitudinal swing mechanism and the synchronization mechanism by rotating the rotating shell 10 by stepping on the foot control outer lug 11.

[0044] In actual application, the synchronization mechanism includes a synchronization traction rope 12, both ends of which are respectively connected to the corresponding foot controls 9 on the two wheels 2, and both ends of the synchronization traction rope 12 have a forward traction end 13 and a reverse traction end 14, and the forward traction end 13 and the reverse traction end 14 of the same end are respectively arranged on the forward steering part and the reverse steering part of the rotating shell 10.

[0045] In practical applications, in order to ensure the service life and synchronous traction performance of the synchronous traction rope 12, a steel rope is used for the synchronous traction rope 12. When the foot-controlled outer lug 11 is stepped on to make the rotating shell 10 rotate forward, the forward traction end 13 moves with the rotation of the rotating shell 10 to realize the positive synchronous traction of the synchronous traction rope 12 (including triggering the brake mechanism to brake the wheel hub motor 5 and triggering the longitudinal swing mechanism to realize the rocking car mode), and vice versa, the reverse synchronous traction of the synchronous traction rope 12 is realized (including contacting the brake mechanism to brake the wheel hub motor 5 and releasing the longitudinal swing mechanism to realize the rocking car mode).

[0046] In actual application, the braking mechanism includes a brake seat 15 and a brake shaft 16 arranged on the brake seat 15. The outer end of the brake seat 15 cooperates with the inner wall of the rotating shell 10 to form a brake adjustment structure. The rotating shell 10 rotates circumferentially (i.e., forward rotation, such as stepping on the foot-controlled outer lug 11 to make the rotating shell 10 rotate clockwise) to trigger the brake adjustment structure to push the brake shaft 16 to move axially, so that the brake shaft 16 is inserted into the brake hole 17 on the hub motor 5 for braking. The rotating shell 10 rotates circumferentially and resets (i.e., reverse rotation, such as releasing the foot-controlled outer lug 11 to make the rotating shell 10 rotate counterclockwise and reset), and the brake shaft 16 is separated from the hub motor 5 for braking release.

[0047] In actual application, the brake adjustment structure includes a flat mouth tip 18 arranged at the end of the brake shaft 16 and an arc-shaped concave and convex ridge 19 arranged inside the rotating shell 10. The flat mouth tip 18 cooperates with the concave and convex ridge 19, and the rotating shell 10 rotates circumferentially to make the convex or concave part on the concave and convex ridge 19 cooperate with the flat mouth tip 18, so that the brake shaft 16 moves axially for braking or releasing the brake.

[0048] In order to improve stability, the head of the flat tip 18 is in a straight line shape, which is beneficial to improving the stability of cooperation with the concave and convex edges 19, and further beneficial to improving the working reliability of the brake adjustment structure.

[0049] Preferably, a plurality of the brake holes 17 are arranged on the housing of the hub motor 5, and the brake holes 17 are distributed in a circumference, and the intervals between adjacent brake holes 17 are balanced. A plurality of brake holes 17 are arranged in the circumferential direction, so that the brake shaft 16 can be inserted into the corresponding brake hole 17 to realize brake control at any time by stepping on the foot control 9.

[0050] In actual application, the longitudinal swing mechanism includes a swing seat 20, a return spring 21, and a linkage shaft 25 arranged on the control seat 4, a limiting arc-shaped groove 28 arranged on the control seat 4, and a protrusion 27 arranged on the inner wall of the rotating shell 10. The end face of the swing seat 20 facing the inner wall of the rotating shell 10 is a concave-convex wedge surface 26, and the protrusion 27 cooperates with the concave-convex wedge surface 26. The return spring 21 is arranged between the swing seat 20 and the control seat 4. The outer end of the linkage shaft 25 is fixed on the swing seat 20, and the inner end passes through the limiting arc-shaped groove 28 and cooperates with the wheel hub motor 5. The linkage shaft 25 swings back and forth in the limiting arc-shaped groove 28 to drive the wheel hub motor 5 and the wheel 2 to swing longitudinally, so that the wheel 2 can achieve rocking-type rolling.

[0051] In this technical solution, positioning outward-turned ends 22 are set at both ends of the return spring 21, and a positioning plane 23 and a positioning groove 24 are set on the control seat 4. One positioning outward-turned end 22 abuts against the positioning plane 23, and the other positioning outward-turned end 22 is embedded in the positioning groove 24.

[0052] In practical applications, the control seat 4 is provided with an assembly groove 29, in which a pivot 30 is provided, in which the swing seat 20, the return spring 21 and the linkage shaft 25 are provided, and in which an axial hole 31 is provided in the swing seat 20. The pivot 30 is inserted into the axial hole 31, so that the swing seat 20 rotates around the pivot 30 as the axis, and a plurality of swing holes 32 are provided on the corresponding side wall of the wheel hub motor 5, and the swing holes 32 are long strip holes with arc transitions at both ends arranged along the radial direction, and the swing holes 32 are centrally symmetrically distributed with the wheel hub motor 5 as the symmetry center. The cross section of the control seat 4 is fan-shaped, and the shape and size of the assembly groove are adapted to the shape and size of the control seat 4.

[0053] In the present technical solution, the axis of the pivot 30 and the axis of the return spring 21 are coaxial.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. In the above embodiments, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric baby stroller driving mechanism, comprising a base frame (1), and wheels (2) arranged on the base frame (1), wherein the base frame (1) is used to be arranged on the baby stroller, and the wheels (2) are used to drive the baby stroller to move, characterized in that: The base frame (1) is provided with a power source (3), the wheel (2) is provided with a driving mechanism, the driving mechanism is electrically connected to the power source (3), and the driving mechanism is used to drive the wheel (2) to move; The base frame (1) is provided with a control mechanism, which cooperates with the power source (3) and / or the drive mechanism and is used to control at least one of the on and off of the power source (3), the wheel movement mode, and the start and stop of the drive mechanism.

2. The electric baby stroller driving mechanism according to claim 1, characterized in that: There are two wheels (2), each of which is provided with a set of the driving mechanisms and a set of the control mechanisms, and the driving mechanisms and the control mechanisms on the same wheel (2) are controlled and coordinated in a one-to-one manner; The braking mechanism and the longitudinal swing mechanism on the control mechanism of the same group are used to control the start and stop of the corresponding driving mechanism and control the corresponding wheel (2) to roll smoothly or in a rocking manner; There is a synchronization mechanism between the two groups of control mechanisms, and the synchronization mechanism is used to make the two groups of control mechanisms act synchronously.

3. The electric baby stroller driving mechanism according to claim 2, characterized in that: Each of the wheels (2) is connected to the base frame (1) via a corresponding control seat (4); the control mechanism is arranged on the control seat (4); the hub motor (5) on each set of the drive mechanism cooperates with the power source (3) and the control mechanism; each of the hub motors (5) is arranged on the hub of the corresponding wheel (2); and the axle (6) of the wheel (2) passes through the hub motor (5) and cooperates with the control seat (4).

4. The electric baby stroller driving mechanism according to claim 3, characterized in that: The control mechanism comprises a foot control (9) arranged on the control seat (4), the foot control (9) comprising a rotating shell (10) and a foot control outer lug (11) fixed on the rotating shell (10), the rotating shell (10) cooperates with the braking mechanism, the longitudinal swing mechanism and the synchronization mechanism, and is used for controlling the braking mechanism, the longitudinal swing mechanism and the synchronization mechanism to operate by rotating the rotating shell (10) by stepping on the foot control outer lug (11).

5. The electric baby stroller driving mechanism according to claim 4, characterized in that: The synchronization mechanism comprises a synchronization traction rope (12), the two ends of which are respectively connected to corresponding foot controls (9) on the two wheels (2), the two ends of which are respectively provided with a forward traction end (13) and a reverse traction end (14), and the forward traction end (13) and the reverse traction end (14) of the same end are respectively arranged on the forward steering part and the reverse steering part of the rotating shell (10).

6. The electric baby stroller driving mechanism according to claim 5, characterized in that: The brake mechanism comprises a brake seat (15) and a brake shaft (16) arranged on the brake seat (15); the outer end of the brake seat (15) cooperates with the inner wall of the rotating shell (10) to form a brake adjustment structure; the rotating shell (10) rotates circumferentially to trigger the brake adjustment structure to push the brake shaft (16) to move axially, so that the brake shaft (16) is inserted into the brake hole (17) on the wheel hub motor (5) for braking; the rotating shell (10) rotates circumferentially to reset, and the brake shaft (16) is separated from the wheel hub motor (5) for braking release.

7. The electric baby stroller driving mechanism according to claim 6, characterized in that: The brake adjustment structure comprises a flat mouth tip (18) arranged at the end of the brake shaft (16) and an arc-shaped concave-convex ridge (19) arranged inside the rotating shell (10), wherein the flat mouth tip (18) cooperates with the concave-convex ridge (19), and the rotating shell (10) rotates circumferentially to make the convex part or concave part on the concave-convex ridge (19) cooperate with the flat mouth tip (18), so that the brake shaft (16) moves axially for braking or releasing the brake.

8. The electric baby stroller driving mechanism according to claim 7, characterized in that: A plurality of braking holes (17) are arranged on the outer shell of the hub motor (5), the braking holes (17) are distributed in a circumference, and the spacing distances between adjacent braking holes (17) are balanced.

9. The electric baby stroller driving mechanism according to claim 4, characterized in that: The longitudinal sway mechanism comprises a sway seat (20) arranged on the control seat (4), a return spring (21), a linkage shaft (25), a limit arc through groove (28) arranged on the control seat (4), and a protrusion (27) arranged on the inner wall of the rotating shell (10); the end surface of the sway seat (20) facing the inner wall of the rotating shell (10) is a concave-convex inclined wedge surface (26); the protrusion (27) cooperates with the concave-convex inclined wedge surface (26); the return spring (21) is arranged between the sway seat (20) and the control seat (4); the outer end of the linkage shaft (25) is fixed on the sway seat (20), and the inner end passes through the limit arc through groove (28) to cooperate with the wheel hub motor (5); the linkage shaft (25) swings back and forth in the limit arc through groove (28) to drive the wheel hub motor (5) and the wheel (2) to swing longitudinally, so that the wheel (2) can achieve rocking car-like rolling.

10. The electric baby stroller driving mechanism according to claim 9, characterized in that: The control seat (4) is provided with an assembly groove (29), in which a pivot (30) is provided, in which the swing seat (20), the return spring (21) and the linkage shaft (25) are arranged, in which an axial hole (31) is provided in the swing seat (20), and the pivot (30) is inserted into the axial hole (31) so that the swing seat (20) rotates around the pivot (30) as an axis, and a plurality of swing holes (32) are provided on the corresponding side wall of the wheel hub motor (5), wherein the swing holes (32) are elongated strip holes with arc-shaped transitions at both ends arranged along the radial direction, and the swing holes (32) are centrally symmetrically distributed with the wheel hub motor (5) as the symmetry center.

Images