One-way drive wheel of a child's tricycle and child's tricycle

Abstract

The application relates to the technical field of baby carriages, in particular to a one-way driving wheel of a child tricycle and the child tricycle. The one-way driving wheel of the child tricycle comprises a wheel body and a pedal in transmission connection with the wheel body, the pedal is rotatably arranged on the two sides of the wheel body through a transmission rod, the transmission rod is in a bent structure and penetrates through the central area of the wheel body, a freewheel lining arranged in the central area of the wheel body is arranged on the transmission rod, a freewheel capable of rotating in one direction is arranged on the freewheel lining, the freewheel lining and the freewheel are circumferentially clamped and matched, and the outer ring of the freewheel is formed with protruding teeth in the circumferential direction, the teeth are engaged and fixed with the inside of the wheel body. The application effectively solves the technical problem that the pedal can rotate together with the driving wheel when the pedal is pushed.

Description

Technical Field

[0001] This application relates to the field of children's vehicle technology, and in particular to a one-way drive wheel for a children's tricycle and the children's tricycle. Background Technology

[0002] Traditional children's tricycles typically use chains or gears to connect the pedals to the drive wheels, achieving forward movement through direct transmission. This design has a significant drawback: when a parent pushes the vehicle, the pedals rotate at high speed along with the wheels, which can easily impact a child's legs or the pusher's calves, posing a safety hazard, especially when going uphill, downhill, or pushing at high speeds.

[0003] The current market urgently needs a child tricycle drive solution that is simple in structure, cost-controllable, and can completely solve the safety issues of its implementation. Utility Model Content

[0004] This application provides a one-way drive wheel for a children's tricycle and a children's tricycle, so as to at least solve the technical problem in the related art that the pedals rotate together with the drive wheel when pushed.

[0005] To achieve the above objectives, this application provides a unidirectional drive wheel for a children's tricycle, including a wheel body and a pedal connected to the wheel body. The pedal is rotatably mounted on both sides of the wheel body via a transmission rod. The transmission rod has a bent structure and passes through the central region of the wheel body. A flywheel liner is provided on the outer sleeve of the transmission rod and is located in the central region of the wheel body. A unidirectionally rotatable flywheel is provided on the outer sleeve of the flywheel liner. The flywheel liner and the flywheel are engaged in the circumferential direction. The outer ring of the flywheel has protruding teeth formed in the circumferential direction, and the teeth mesh and are fixed with the inside of the wheel body.

[0006] In some embodiments, the drive rod is fixedly connected to the flywheel liner in the circumferential direction and rotates synchronously, and the pedal drives the flywheel liner to rotate through the drive rod.

[0007] In some embodiments, a one-way bearing is provided between the inner and outer rings of the flywheel, the flywheel liner is fixedly connected to the inner ring of the flywheel in the circumferential direction, and the outer ring of the flywheel and the inner ring of the flywheel can rotate synchronously or relatively independently.

[0008] In some embodiments, the flywheel liner has protruding snap-fit ​​portions distributed circumferentially, and the flywheel inner ring has snap-fit ​​grooves distributed circumferentially to mate with the snap-fit ​​portions.

[0009] In some embodiments, the flywheel liner has a baffle on one side with a diameter larger than that of the inner ring of the flywheel.

[0010] In some embodiments, the drive rod has a bent fixing portion formed inside the flywheel liner, the fixing portion cooperating with the flywheel liner to cause the drive rod to rotate synchronously with the flywheel liner.

[0011] In some embodiments, a receiving space is formed in the central region of the wheel body, and the flywheel, the flywheel liner and the transmission rod are all disposed in the receiving space. Mounting covers that are installed on the wheel body and cover the receiving space are respectively disposed on the left and right sides of the flywheel, and the transmission rod passes through the mounting covers on both sides and extends outward to connect to the pedal.

[0012] In some embodiments, a bearing is provided on the outside of the mounting cover and sleeved on the transmission rod, and a cover is provided outside the bearing to cooperate with and connect with the bicycle front fork.

[0013] In some embodiments, the two ends of the flywheel liner are respectively fitted between the bearing and the transmission rod.

[0014] This application also provides a children's tricycle, including a one-way drive wheel as described in any of the above claims.

[0015] Based on the above, the beneficial effects of the technical solution of this application compared with the prior art are: the pedal and the wheel are connected by a flywheel transmission with a one-way bearing, which ensures efficient power transmission during riding and keeps the pedal stationary when pushing, effectively avoiding injury to children's feet during the bicycle's movement and fundamentally eliminating safety hazards. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the first embodiment of this application; Figure 2 This is an exploded view of the first embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the first embodiment of this application; Figure 4 This is a schematic diagram of the fit between the transmission rod and the flywheel liner in the first embodiment of this application; Figure 5 This is a schematic diagram of the overall structure of the second embodiment of this application.

[0017] Explanation of reference numerals in the attached drawings: Wheel body 1; Mounting cover 1.1; Pedal 2; Drive rod 3; Fixing part 3.1; Flywheel 4; Snap-fit ​​groove 4.1; Flywheel liner 5; Snap-fit ​​part 5.1; Baffle 5.2; Bearing 6; Cover 7. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application. Furthermore, it is understood that although the efforts made in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, modifications to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0019] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0020] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application means two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The terms “first,” “second,” “third,” etc., used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0021] This application provides a one-way drive wheel for a children's tricycle, including a wheel body and a pedal connected to the wheel body for transmission. The pedal is rotatably mounted on both sides of the wheel body via a transmission rod. The transmission rod has a bent structure and passes through the central area of ​​the wheel body. A flywheel liner is mounted on the outer sleeve of the transmission rod and is located in the central area of ​​the wheel body. A flywheel that can rotate in one direction is mounted on the outer sleeve of the flywheel liner. The flywheel liner and the flywheel are engaged in the circumferential direction. The outer ring of the flywheel has protruding teeth formed along the circumferential direction, and the teeth mesh and fix with the inside of the wheel body.

[0022] This application also provides a children's tricycle, including the unidirectional drive wheel of the aforementioned children's tricycle.

[0023] Implementation, for example Figures 1-4 As shown, a one-way drive wheel of a children's tricycle includes a wheel body 1, a pedal 2, a bent transmission rod 3, a flywheel 4, and a flywheel liner 5. A accommodating space is formed in the central area of ​​the wheel body 1. The flywheel 4, flywheel liner 5, and transmission rod 3 are all disposed within this accommodating space. The outer ring of the flywheel 4 has protruding teeth along its circumference, which mesh and fix with the interior of the wheel body 1. Mounting covers 1.1, mounted on the wheel body 1 and covering the accommodating space, are respectively provided on the left and right sides of the flywheel 4. The transmission rod 3 passes through the mounting covers 1.1 on both sides and extends outward. The pedal 2 is rotatably mounted on the transmission rod 3 extending from both sides of the wheel body 1 and is connected to the wheel body 1 in a transmission manner.

[0024] Furthermore, the flywheel liner 5 is fitted outside the transmission rod 3, and the transmission rod 3 has a bent fixing part 3.1 inside the flywheel liner 5. The fixing part 3.1 cooperates with the flywheel liner 5 to fix the transmission rod 3 and the flywheel liner 5 in the circumferential direction and rotate synchronously. The pedal 2 can drive the flywheel liner 5 to rotate through the transmission rod 3.

[0025] Furthermore, the flywheel 4 is fitted outside the flywheel liner 5, and a one-way bearing is provided between the inner and outer rings of the flywheel 4, enabling the flywheel 4 to rotate in one direction. The flywheel liner 5 has protruding snap-fit ​​parts 5.1 distributed circumferentially, and the inner ring of the flywheel 4 has snap-fit ​​grooves 4.1 distributed circumferentially to mate with the snap-fit ​​parts 5.1. The flywheel liner 5 and the inner ring of the flywheel 4 are snap-fitted and fixed circumferentially, and the outer ring and inner ring of the flywheel 4 can rotate synchronously or relatively independently.

[0026] Specifically, when pedal 2 drives the flywheel inner liner 5 to rotate forward via the transmission rod, the inner ring of flywheel 4, which is circumferentially fixed to flywheel liner 5, drives the outer ring of flywheel 4 to rotate synchronously through the one-way rotation effect of the one-way bearing. Since the outer ring of flywheel 4 meshes with wheel body 1, it also drives wheel body 1 to rotate synchronously. When wheel body 1 is pushed to rotate by an external force, the outer ring of flywheel 4 is driven to rotate by wheel body 1. Due to the one-way rotation effect of the one-way bearing, at this time, the outer ring of flywheel 4 does not have a transmission relationship with the inner ring of flywheel 4. The outer ring of flywheel 4 rotates independently relative to the inner ring of flywheel 4. Thus, flywheel inner liner 5, transmission rod 3, and pedal 2 all remain stationary, achieving the effect of preventing foot strikes.

[0027] Furthermore, the flywheel liner 5 is provided with a baffle 5.2 on one side, which has a diameter larger than that of the inner ring of the flywheel 4. The baffle 5.2 helps to prevent the flywheel liner 5 from detaching from the flywheel 4 along the axial direction.

[0028] Furthermore, both ends of the flywheel liner 5 extend to the outside of the mounting cover 1.1, and bearings 6 are fitted onto both ends of the flywheel liner 5. A cover 7 that mates with the bicycle fork is provided outside the bearings 6. Specifically, the nesting order from the inside to the outside is as follows: drive rod 3, both ends of the flywheel liner 5, bearings 6, and cover 7.

[0029] Furthermore, this application also provides a children's tricycle based on the above embodiments, such as... Figure 5 As shown, the children's tricycle includes the aforementioned one-way drive wheel structure of the children's tricycle.

[0030] Those skilled in the art should understand that the technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0031] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A one-way drive wheel for a children's tricycle, comprising a wheel body and pedals rotatably connected to the wheel body via a transmission rod on both sides of the wheel body, characterized in that: The transmission rod has a bent structure and passes through the central area of ​​the wheel body. The transmission rod is fitted with a flywheel liner located in the central area of ​​the wheel body. The flywheel liner is fitted with a flywheel that can rotate in one direction. The flywheel liner and the flywheel are engaged in the circumferential direction. The outer ring of the flywheel has protruding teeth formed in the circumferential direction. The teeth mesh and are fixed with the inside of the wheel body.

2. The one-way drive wheel of a children's tricycle according to claim 1, characterized in that: The transmission rod is fixedly connected to the flywheel liner in the circumferential direction and rotates synchronously. The pedal drives the flywheel liner to rotate through the transmission rod.

3. The one-way drive wheel of a children's tricycle according to claim 2, characterized in that: A one-way bearing is provided between the inner and outer rings of the flywheel. The flywheel liner is fixedly connected to the inner ring of the flywheel in the circumferential direction. The outer ring of the flywheel and the inner ring of the flywheel can rotate synchronously or relatively independently.

4. The one-way drive wheel of a children's tricycle according to claim 3, characterized in that: The flywheel liner has protruding snap-fit ​​parts distributed circumferentially, and the flywheel inner ring has snap-fit ​​grooves distributed circumferentially to mate with the snap-fit ​​parts.

5. The one-way drive wheel of a children's tricycle according to claim 4, characterized in that: The flywheel liner has a baffle on one side with a diameter larger than that of the inner ring of the flywheel.

6. The one-way drive wheel of a children's tricycle according to claim 2, characterized in that: The transmission rod has a bent fixing part formed inside the flywheel liner, and the fixing part cooperates with the flywheel liner to make the transmission rod rotate synchronously with the flywheel liner.

7. The one-way drive wheel of a children's tricycle according to claim 1, characterized in that: The central area of ​​the wheel body forms an accommodating space. The flywheel, the flywheel liner, and the transmission rod are all disposed in the accommodating space. Mounting covers that are installed on the wheel body and cover the accommodating space are respectively disposed on the left and right sides of the flywheel. The transmission rod passes through the mounting covers on both sides and extends outward to connect to the pedal.

8. The one-way drive wheel of a children's tricycle according to claim 7, characterized in that: A bearing is fitted onto the transmission rod on the outside of the mounting cover, and a cover that mates with the bicycle fork is provided outside the bearing.

9. The one-way drive wheel of a children's tricycle according to claim 8, characterized in that: The two ends of the flywheel liner are respectively fitted between the bearing and the transmission rod.

10. A children's tricycle, characterized in that, Includes the one-way drive wheel of the children's tricycle as described in any one of claims 1 to 9.

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