CN219524152U

CN219524152U - Driving wheel for baby carrier and baby carrier

Info

Publication number: CN219524152U
Application number: CN202320859113.1U
Authority: CN
Inventors: 姚维杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-08-15
Anticipated expiration: 2033-04-10

Abstract

The utility model discloses a baby carrier driving wheel and a baby carrier, which adopt an integral and continuous wheel shaft on one hand; on the other hand, the internal transmission structure of the wheel cavity is simple and convenient to assemble. The utility model provides a bassinet drive wheel, includes fixed lid, wheel hub, shaft and drive arrangement, its characterized in that: the wheel axle is arranged on the fixed cover in a penetrating mode, the wheel axle is rotatably sleeved with the wheel axle, two ends of the wheel axle are respectively exposed out of the fixed cover and the wheel axle, the fixed cover and the wheel axle construct a wheel cavity, the output end of the driving device stretches into the wheel cavity, the driving device is located at the lateral position of the wheel axle, the driving device is arranged at the output end of the driving device, a rotatable driven component is sleeved at the position between the fixed cover and the wheel axle, the driven component is provided with a driven wheel part and a connecting part, the driven wheel part and the connecting part are coaxial in structure and are connected with each other, the driven wheel part is in transmission connection with the driving wheel, and the connecting part and the wheel hub form transmission torque connection.

Description

Driving wheel for baby carrier and baby carrier

Technical Field

The utility model belongs to the technical field of electric baby carrier appliances, and particularly relates to a baby carrier driving wheel. The utility model also relates to a buggy.

Background

The stroller drive wheel is the drive wheel of the stroller product that provides the driving force for the stroller to advance or retract.

For example, in chinese patent publication No. CN205440694U, a child scooter is disclosed, which has a front wheel assembly and a motor mounted on a front fork, the motor being connected with the front wheel assembly through a sprocket gear.

In this child scooter structure, the motor is integrally located outside the front wheel assembly, and torque transmission needs to be achieved through the wheel transmission mechanism. Since the motor and the front wheel assembly are independent of each other, the front fork is required to be high in height when designing the front fork so as to meet the requirement that the front fork is provided with the motor above the front wheel assembly after the front wheel assembly is arranged.

In order to make the overall structure more compact, it is necessary to integrate the front wheel and the motor, for example, chinese patent publication No. CN 107848600a discloses a hub motor device, and chinese patent publication No. CN 203753351U discloses a novel electric vehicle device, which realizes the integration of the front wheel and the motor. However, none of the stroller drive wheel arrangements disclosed in these patent documents employs an integral, continuous structural member for the axle.

On the other hand, a planetary reduction structure is arranged in the wheel cavity, and the assembly structure is complex.

Disclosure of Invention

The utility model aims to provide a driving wheel of a baby carrier, which adopts an integral and continuous wheel shaft on one hand; on the other hand, the internal transmission structure of the wheel cavity is simple and convenient to assemble.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a bassinet drive wheel, includes fixed lid, wheel hub, shaft and drive arrangement, its characterized in that: the wheel axle is arranged on the fixed cover in a penetrating mode, the wheel axle is rotatably sleeved with the wheel axle, two ends of the wheel axle are respectively exposed out of the fixed cover and the wheel axle, the fixed cover and the wheel axle construct a wheel cavity, the output end of the driving device stretches into the wheel cavity, the driving device is located at the lateral position of the wheel axle, the driving device is arranged at the output end of the driving device, a rotatable driven component is sleeved at the position between the fixed cover and the wheel axle, the driven component is provided with a driven wheel part and a connecting part, the driven wheel part and the connecting part are coaxial in structure and are connected with each other, the driven wheel part is in transmission connection with the driving wheel, and the connecting part and the wheel hub form transmission torque connection.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the driving device is a speed reducing motor, the driving wheel is provided with a gear structure, the driven wheel part is provided with a gear structure, and the driving wheel is meshed with the driven wheel part.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the number of teeth of the driving wheel is less than the number of teeth of the driven wheel.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the gear motor is provided with a mounting frame, the mounting frame is positioned at the front end of the gear motor, the fixed cover is provided with a concave cavity, the opening end of the concave cavity is positioned on the outer surface of the fixed cover, the concave cavity is matched with the mounting frame, and the front part of the gear motor is inserted into the concave cavity; the mounting frame is fixed with the fixed cover.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the rear part of the gear motor is also sleeved with a shell, and the shell is fixed with the fixed cover.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the inside of wheel hub is provided with the biography power dogtooth, connecting portion is provided with the confession biography power recess that passes the power dogtooth and insert.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the inside of wheel hub is provided with annular wall, and the week side of annular wall distributes has the strengthening rib.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the driven wheel part and the connecting part are of an integrated structure, a first mounting cavity for mounting a first bearing is formed in the driven wheel part, an inner ring of the first bearing is sleeved on the wheel shaft, a second mounting cavity for mounting a second bearing is formed in the wheel hub, an opening end of the second mounting cavity is formed in the outer surface of the wheel hub, and an inner ring of the second bearing is sleeved on the wheel shaft; the connecting part is sleeved with the hub, so that the end part of the connecting part far away from the fixed cover is positioned in the radial direction.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the connecting part is provided with a plurality of rib walls which are distributed in an annular mode, the hub is provided with a collar, and spaces surrounded by the rib walls are used for assembling the collar.

The utility model also provides a baby carrier with the baby carrier driving wheel, which comprises a car body, wherein the car body is provided with a rotatable front fork, the upper end of the front fork is provided with a handle bar, the wheel shaft is fixed on the front fork, and the fixed cover is fixed with the front fork.

Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

the driving wheel of the baby carrier adopts the structure that the driving device is positioned at the side of the wheel shaft, the rotatable driven component is arranged on the wheel shaft, the wheel hub is rotatably sleeved on the wheel shaft and the like, and the driving device drives the wheel hub to rotate through the driving wheel and the driven component. Because the driving device is positioned at the side position of the wheel axle, the wheel axle for mounting the wheel hub and the fixed cover can adopt integral and continuous structural members, and after the wheel axle is assembled, two ends of the wheel axle are respectively exposed out of the fixed cover and the wheel hub for mounting the front fork.

In addition, the utility model also adopts the structure of the gear motor, and adopts the transmission structure of the driving wheel and the driven component in the wheel cavity, so that the whole structure is simple and easy to assemble.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic diagram of the explosive structure of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is a schematic structural view of the hub of the present utility model.

Fig. 5 is a schematic structural view of the driven assembly of the present utility model.

Fig. 6 is a schematic structural view of the stationary cover of the present utility model.

Fig. 7 is a schematic structural view of the driving device of the present utility model.

In the figure, 1, a fixed cover; 2. a hub; 3. a wheel axle; 4. a speed reducing motor; 5. a side surface portion; 6. a top surface portion; 7. an annular wall; 8. reinforcing ribs; 9. a first annular wall; 10. a first reinforcing rib; 11. a second annular wall; 12. a second reinforcing rib; 13. a wheel cavity; 14. an output end of the gear motor; 15. a driving wheel; 16. a recessed cavity; 17. a mounting frame; 18. a shaft hole; 19. a shell; 20. a driven assembly; 21. a driven wheel section; 22. a connection part; 23. force transmission convex teeth; 24. a force transfer groove; 25. a first bearing; 26. a first mounting cavity; 27. a second mounting cavity; 28. a rib wall; 29. a space; 30. a collar; 31. a front fork; 32. a wear-resistant layer; 33. a second bearing; 34. and (5) mounting holes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings in the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the examples given, which a person of ordinary skill in the art would obtain without making any inventive effort, are within the scope of the utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

The utility model discloses a driving wheel of a baby carrier, which is used as a wheel of the baby carrier and provides driving force for the forward or backward movement of the baby carrier. In the utility model, the driving wheel of the baby carrier comprises a fixed cover 1, a hub 2, a wheel shaft 3 and a gear motor 4, wherein the gear motor 4 provides power for driving the hub 2 to rotate. In the present embodiment, the hub 2 has a structure of the side face portion 5 and the top face portion 6, the side face portion 5 is provided only on one side of the top face portion 6, and the outer diameter of the top face portion 6 is larger than the outer diameter of the side face portion 5, that is, one side of the hub 2 forms an open structure. As shown in the figures, the side portions 5 are substantially cambered structures and the top portion 6 is substantially toroidal. In one embodiment, to provide good wear resistance to the hub 2, a wear layer 32 is typically secured to the exterior of the top surface portion 6. In a specific application, the wear layer 32 is supported by the hub 2, the wear layer 32 being intended to contact the ground. In this embodiment, the hub 2 is made of a hard material so that the hub 2 can carry the weight of the child car as well as the person (child) on the car. Typically, the side portions 5 and the top portion 6 of the hub 2 are integrally formed. In this embodiment, the hub 2 is provided with an annular wall 7 inside, and reinforcing ribs 8 are distributed on the circumferential side of the annular wall 7. As shown in the figures, the annular wall 7 and the reinforcing ribs 8 are provided with a plurality of groups, thereby increasing the load carrying capacity of the hub 2. In an embodiment, the annular wall 7 and the reinforcing rib 8 are provided with two groups, namely a first annular wall 9, a first reinforcing rib 10, a second annular wall 11 and a second reinforcing rib 12, wherein the first annular wall 9 is arranged on the inner surface of the side surface part 5, the first reinforcing rib 10 is arranged on the outer side of the first annular wall 9, and two adjacent sides of the first reinforcing rib 10 are respectively connected with the side surface part 5 and the first annular wall 7. A second annular wall 11 is arranged on the outer side of the first reinforcing rib 10, a second reinforcing rib 12 is arranged on the outer side of the second annular wall 11, one side edge of the second reinforcing rib 12 is connected with the second annular wall 11, and the other side edge is connected with the inner surfaces of the side face part 5 and the top face part 6. By adopting such a structure of the annular wall 7 and the reinforcing ribs 8, the overall structure of the hub 2 is reinforced.

As shown in the figure, the wheel axle 3 is disposed through the fixed cover 1, the wheel hub 2 is rotatably sleeved on the wheel axle 3, the wheel axle 3 is in an integral structure, and two ends of the wheel axle 3 are respectively exposed out of the fixed cover 1 and the wheel hub 2 for mounting the front fork 31. In this embodiment, the hub 2 is provided with a shaft hole 18 at a central position of the side portion 5 for passing the axle 3, and an inner diameter of the shaft hole 18 is slightly larger than an outer diameter of the axle 3, thereby enabling the hub 2 to rotate relative to the axle 3. The fixed cover 1 is provided with a mounting hole 34, the wheel shaft 3 passes through the mounting hole 34, and the wheel shaft 3 is fixed relative to the fixed cover 1 in the circumferential direction and does not rotate relative to the fixed cover 1. In another embodiment, the axle 3 may also be rotatably mounted with respect to the stationary cover 1 in terms of the mounting relationship between the axle 3 and the stationary cover 1, but the stationary cover 1 is secured to the front fork 31 in a particular application.

The stationary cover 1 and the hub 2 form a wheel cavity 13. In this embodiment, the outer peripheral edge of the stationary cover 1 and the outer peripheral edge of the hub 2 are not rigidly connected together to form the wheel cavity 13, and the hub 2 is still rotatable relative to the stationary cover 1, since the hub 2 is rotatable relative to the axle 3.

The gear motor 4 is offset from the central axis of the wheel cavity 13, as shown in the figure, the gear motor 4 being located laterally of the wheel axle 3. In the present embodiment, the hub 2 takes the center axis of the axle 3 as the rotation center during rotation. Since the gear motor 4 is located at a lateral position of the wheel axle 3, the wheel axle 3 can be integrally and continuously formed to penetrate the fixed cover 1 and the wheel hub 2, as shown in the figure, one end of the wheel axle 3 is assembled by the fixed cover 1, and the other end of the wheel axle 3 is assembled by the wheel hub 2. Since the wheel axle 3 is integral, both ends of the front fork 31 can be directly fixed to both ends of the wheel axle 3 when the driving wheel of the stroller of the present utility model is assembled to the stroller. It will be appreciated that, since the axle 3 is integral, the two ends of the axle 3 are exposed outside the fixed cover 1 and the hub 2 for the front fork 31 to be mounted, and therefore the two ends of the axle 3 can have the same outer diameter, compared with the interrupted axle, no additional third structural member is required to be used between the fixed cover 1 and the hub 2 to realize interconnection except the axle 3 in order to meet the load-bearing requirement, and the design requirement on the front fork 31 is reduced.

In the utility model, a gear motor 4 is fixed with a fixed cover 1, an output end 14 of the gear motor extends into a wheel cavity 13, and an output end 14 of the gear motor 4 is provided with a driving wheel 15. In general, the mount 17 and the fixed cover 1 are fixed by screws, which are threaded through the mount 17 from the inside of the fixed cover 1, thereby fixing the gear motor 4 to the fixed cover 1. In this embodiment, the gear motor 4 has a mounting frame 17, the mounting frame 17 is located the front end of gear motor 4, the fixed cover 1 is equipped with sunken chamber 16, the open end in sunken chamber 16 is located the surface of fixed cover 1, sunken chamber 16 and mounting frame 17 looks adaptation, the front portion of gear motor 4 inserts in sunken chamber 16. The mounting frame 17 is limited in the concave cavity 16, so that the fixed cover 1 can provide enough reaction force for the gear motor 4 when the gear motor 4 continuously outputs torque, and the gear motor is not only dependent on screws.

It should be noted that, in the above embodiment, the gear motor 4 is an integrated body of a motor and a speed reducer, and is an integrated structure, which belongs to the prior art. As another embodiment of the driving wheel of the stroller, the gear motor as the driving means may have the following structure: a common motor can be adopted, the shaft of the motor is connected with the output end of the speed reducer, the output end of the speed reducer is connected with the driving wheel 15, the motor and the speed reducer are of split structures, and the motor and the speed reducer are respectively arranged on the fixed cover 1.

As shown in the figure, a shell 19 is further sleeved at the rear part of the gear motor 4, and the shell 19 is fixed with the fixed cover 1. By adopting such a structure, the reduction motor 4 can be more firmly mounted.

In this embodiment, the driven component 20 is rotatably sleeved on the axle 3, and the driven component 20 is provided with a driven wheel portion 21 and a connecting portion 22, and the driven wheel portion 21 and the connecting portion 22 are coaxially and mutually connected. In this embodiment, the driven assembly 20 is of unitary construction.

The driven wheel portion 21 is in driving connection with the driving wheel 15. In the present embodiment, the driving wheel 15 has a gear structure, the driven wheel portion 21 has a gear structure, the number of teeth of the driving wheel 15 is smaller than the number of teeth of the driven wheel portion 21, the number of teeth of the driven wheel portion 21 is larger than the number of teeth of the driving wheel 15, and the driving wheel 15 and the driven wheel portion 21 are meshed, thereby connecting the driving wheel 15 and the driven wheel portion 21 in a driving manner. Of course, the driven wheel portion 21 and the driving wheel 15 may be in other driving connection.

The connection 22 and the hub 2 form a torque transmitting connection, as shown in the figures, the interior of the hub 2 is provided with force transmitting teeth 23, and the connection 22 is provided with force transmitting grooves 24 into which the force transmitting teeth 23 are inserted. In this embodiment, the force-transmitting teeth 23 and the force-transmitting grooves 24 each extend in a direction parallel to the axis of the wheel axle 3. In another embodiment, it may also extend in a radial direction.

In this embodiment, the connection portion 22 and the hub 2 are also connected by a set screw in order to make the connection portion 22 and the hub 2 reliably connected. As shown in fig. 3, a set screw is screwed through the hub 2 onto the connection portion 22.

It should be noted that in the stroller driving wheel structure of the above embodiment, not only the connection of the connection portion 22 and the hub 2 is achieved by a set screw, but also a structure of a force transmission tooth 23 and a force transmission groove 24 is provided. Since the coupling portion 22 and the hub 2 can be connected by the fixing screw to serve as a torque transmission mechanism by the structure in which the force transmission teeth 23 and the force transmission grooves 24 are engaged with each other, as another embodiment of the structure of the stroller driving wheel, the coupling portion 22 and the hub 2 can be connected by the fixing screw without the force transmission teeth 23 and the force transmission grooves 24, or the coupling portion 22 and the hub 2 can be connected by the fixing screw without the force transmission teeth 23 and the force transmission grooves 24.

In this embodiment, the driven wheel portion 21 and the connecting portion 22 are integrally configured, a first mounting cavity 26 for mounting the first bearing 25 is provided on the driven wheel portion 21, an inner ring of the first bearing 25 is sleeved on the wheel shaft 3, a second mounting cavity 27 for mounting the second bearing 33 is provided on the wheel hub 2, an open end of the second mounting cavity 27 is provided on an outer surface of the wheel hub 2, and an inner ring of the second bearing 33 is sleeved on the wheel shaft 3. In this embodiment, the connecting portion 22 is sleeved with the hub 2, so that the end portion of the connecting portion 22 away from the fixed cover 1 is positioned in the radial direction. As shown in the figure, the connecting portion 22 is provided with a plurality of rib walls 28 distributed in a ring shape, the hub 2 is provided with a collar 30, and a space 29 surrounded by the plurality of rib walls 28 is provided for the collar 30 to be assembled. By adopting the structure, the driven component 20 and the hub 2 can be coaxially assembled on the wheel shaft 3 by utilizing the structure of two bearings, so that the driven component 20 is ensured to be firmly assembled on the wheel shaft 3 in the radial direction, and the hub 2 is ensured to be firmly assembled on the wheel shaft 3 in the radial direction.

The utility model also discloses a baby carrier with the baby carrier driving wheel, which comprises a car body, wherein the car body is provided with a rotatable front fork 31, the upper end of the front fork 31 is provided with a handle, the wheel shaft 3 is fixed on the front fork 31, and the fixed cover 1 is fixed with the front fork 31. In a specific application, the handle bar drives the stroller drive wheel to integrally rotate through the front fork 31 by applying torque to the handle bar.

It should be noted that the child's vehicle may be a drift vehicle, a scooter, or an electric child's vehicle with other functions.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model in this way, therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. The utility model provides a bassinet drive wheel, includes fixed lid, wheel hub, shaft and drive arrangement, its characterized in that: the wheel axle is arranged on the fixed cover in a penetrating mode, the wheel axle is rotatably sleeved with the wheel axle, two ends of the wheel axle are respectively exposed out of the fixed cover and the wheel axle, the fixed cover and the wheel axle construct a wheel cavity, the output end of the driving device stretches into the wheel cavity, the driving device is located at the lateral position of the wheel axle, the driving device is arranged at the output end of the driving device, a rotatable driven component is sleeved at the position between the fixed cover and the wheel axle, the driven component is provided with a driven wheel part and a connecting part, the driven wheel part and the connecting part are coaxial structures and are mutually connected, the driven wheel part is in transmission connection with the driving wheel, and the connecting part and the wheel hub form transmission torque connection.

2. The stroller drive wheel of claim 1, wherein: the driving device is a speed reducing motor; the driving wheel is provided with a gear structure, the driven wheel part is provided with a gear structure, and the driving wheel is meshed with the driven wheel part.

3. The stroller drive wheel of claim 2, wherein: the number of teeth of the driving wheel is less than the number of teeth of the driven wheel.

4. The stroller drive wheel of claim 2, wherein: the gear motor is provided with a mounting frame, the mounting frame is positioned at the front end of the gear motor, the fixed cover is provided with a concave cavity, the opening end of the concave cavity is positioned on the outer surface of the fixed cover, the concave cavity is matched with the mounting frame, and the front part of the gear motor is inserted into the concave cavity; the mounting frame is fixed with the fixed cover.

5. The stroller drive wheel of claim 4, wherein: the rear part of the gear motor is also sleeved with a shell, and the shell is fixed with the fixed cover.

6. The stroller drive wheel of claim 1, wherein: the inside of wheel hub is provided with the biography power dogtooth, connecting portion is provided with the confession biography power recess that passes the power dogtooth and insert.

7. The stroller drive wheel of claim 1, wherein: the inside of wheel hub is provided with annular wall, and the week side of annular wall distributes has the strengthening rib.

8. The stroller drive wheel of claim 1, wherein: the driven wheel part and the connecting part are of an integrated structure, a first mounting cavity for mounting a first bearing is formed in the driven wheel part, an inner ring of the first bearing is sleeved on the wheel shaft, a second mounting cavity for mounting a second bearing is formed in the wheel hub, an opening end of the second mounting cavity is formed in the outer surface of the wheel hub, and an inner ring of the second bearing is sleeved on the wheel shaft; the connecting part is sleeved with the hub, so that the end part of the connecting part far away from the fixed cover is positioned in the radial direction.

9. The stroller drive wheel of claim 8, wherein: the connecting part is provided with a plurality of rib walls which are distributed in an annular mode, the hub is provided with a collar, and spaces surrounded by the rib walls are used for assembling the collar.

10. A child car using a drive wheel for a child car according to any one of claims 1-9, wherein: the bicycle comprises a bicycle body, wherein a rotatable front fork is arranged on the bicycle body, a handlebar is arranged at the upper end of the front fork, a wheel shaft is fixed on the front fork, and a fixed cover is fixed with the front fork.