CN210553951U

CN210553951U - Wheel assembly of baby stroller

Info

Publication number: CN210553951U
Application number: CN201921559585.5U
Authority: CN
Inventors: 李伟琼
Original assignee: Kunshan Weikai Children Products Co Ltd
Current assignee: Kunshan Weikai Children Products Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-05-19
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a wheel component of a baby stroller, which comprises a wheel shaft and a wheel, wherein the wheel shaft and the wheel are assembled on a frame, the center of the wheel is provided with a bearing outer ring, the wheel shaft is circumferentially provided with an annular groove corresponding to the bearing outer ring, a plurality of rolling bodies are arranged between the annular groove and the bearing outer ring, and the bearing outer ring and the wheel shaft realize relative rotation between the bearing outer ring and the wheel shaft through the rolling bodies; the utility model discloses directly form annular groove on the shaft, replace traditional bearing inner race with annular groove, the structure is more succinct, and has simplified the assembling process.

Description

Wheel assembly of baby stroller

Technical Field

The utility model relates to a wheel subassembly of baby's shallow.

Background

The wheel structure of the baby carriage in the market at present is realized by adopting a mode that a single wheel shaft is matched with a wheel, and a wheel bearing needs to be assembled between the wheel and the wheel shaft.

A conventional wheel bearing includes a bearing outer race fitted and fixed to a wheel, a bearing inner race fitted and fixed to a wheel shaft, and rolling bodies disposed between the bearing inner race and the bearing outer race. The installation process of the existing wheel structure is complex, and not only the bearing inner ring needs to be assembled on a wheel shaft, but also the bearing outer ring needs to be assembled on a wheel.

Disclosure of Invention

The utility model discloses the purpose is: a wheel assembly of a stroller is provided, in which an annular groove is directly formed on a wheel shaft, and the conventional bearing inner ring is replaced by the annular groove, so that the structure is simpler, and the assembly process is simplified.

The technical scheme of the utility model is that: the wheel assembly of the baby stroller comprises a wheel shaft and wheels, wherein the wheel shaft and the wheels are assembled on a frame, a bearing outer ring is installed in the center of each wheel, an annular groove corresponding to the bearing outer ring is formed in the wheel shaft in the circumferential direction, a plurality of rolling bodies are arranged between the annular groove and the bearing outer ring, and the bearing outer ring and the wheel shaft realize relative rotation through the rolling bodies.

Furthermore, the wheel center has a through mounting hole, the bearing outer ring is assembled and fixed in the mounting hole, the center position of the outer side of the wheel is provided with a center cover plate matched with the wheel, and the center cover plate is arranged at the outer side parts of the mounting hole, the bearing outer ring and the exposed end of the wheel shaft in a blocking mode.

Furthermore, the central cover plate is in clamping fit with the outer side part of the wheel.

Further, the annular groove is formed in the outer side portion of the wheel axle, and a portion of the wheel axle located outside the annular groove is formed with a cap portion extending outwards in the circumferential direction, and the diameter of the cap portion is larger than that of the wheel axle.

Furthermore, the inner side of the wheel axle is provided with an annular mounting groove corresponding to the frame, and the inner side end of the wheel axle is a cone part which is gradually reduced from outside to inside.

Furthermore, a retainer is arranged between the bearing outer ring and the annular groove, the retainer is provided with pockets corresponding to the number of the rolling bodies, and the rolling bodies are arranged in the pockets of the retainer at intervals.

The utility model has the advantages that: the utility model discloses directly form annular groove on the shaft, replace traditional bearing inner race with annular groove, the structure is more succinct, and has simplified the assembling process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the entire vehicle structure in the practice of the present invention;

fig. 2 and 3 are partial assembly structure diagrams of the wheel assembly in fig. 1.

Wherein: 1, a frame;

2, a wheel shaft; 2-1 annular groove; 2-2 cap body; 2-3 annular mounting grooves; 2-4 vertebral body parts;

3, vehicle wheels; 3-1, mounting holes;

4 bearing outer ring;

5 rolling bodies;

6 a central cover plate.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present invention. The conditions used in the examples may be further adjusted according to specific conditions, and the conditions used in the experiments are not specifically mentioned.

As shown in fig. 1 to 3, a wheel assembly of a stroller includes a wheel axle 2 and a wheel 3 assembled on a frame 1, a bearing outer ring 4 is installed at the center of the wheel 3, an annular groove 2-1 corresponding to the bearing outer ring 4 is circumferentially formed on the wheel axle 2, a plurality of rolling elements 5 are disposed between the annular groove 2-1 and the bearing outer ring 4, and the bearing outer ring 4 and the wheel axle 2 realize relative rotation therebetween through the rolling elements 5.

In this embodiment, the center of the wheel 3 is provided with a through mounting hole 3-1, the bearing outer ring 4 is assembled and fixed in the mounting hole 3-1, the center position of the outer side of the wheel 3 is provided with a center cover plate 6 matched with the wheel 3, and the center cover plate 6 is arranged at the outer side part of the exposed end of the mounting hole 3-1, the bearing outer ring 4 and the wheel shaft 2 in a blocking manner. Preferably, the central cover 6 is snap-fitted to the outer side of the wheel 3.

In this embodiment, the annular groove 2-1 is formed at the outer side of the hub 2, and a cap portion 2-2 extending outward in the circumferential direction is formed at the portion of the hub 2 located at the outer side of the annular groove 2-1, and the diameter of the cap portion 2-2 is larger than the main diameter of the hub 2.

In this embodiment, the inner side of the wheel axle 2 has an annular mounting groove 2-3 corresponding to the frame 1, and the inner side end of the wheel axle 2 is a cone portion 2-4 gradually reduced from outside to inside. The design facilitates the assembly and connection of the wheel shaft and the frame.

In this embodiment, a retainer may be disposed between the bearing outer ring 4 and the annular groove 2-1 as required, the retainer has pockets corresponding to the number of the rolling elements 5, and the rolling elements 5 are spaced in the pockets of the retainer. The retainer is a conventional component in the existing bearing, and no specific structural limitation and description are made herein.

The utility model discloses directly form annular groove 2-1 on shaft 2, replace traditional bearing inner circle with annular groove 2-1, the structure is more succinct, and has simplified the equipment process.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. In addition to the above embodiments, other embodiments of the present invention are also possible. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims

1. A wheel assembly for a stroller comprising a wheel axle (2) and a wheel (3) mounted on a frame (1), characterized in that: the wheel is characterized in that a bearing outer ring (4) is installed in the center of the wheel (3), an annular groove (2-1) corresponding to the bearing outer ring (4) is formed in the wheel shaft (2) in the circumferential direction, a plurality of rolling bodies (5) are arranged between the annular groove (2-1) and the bearing outer ring (4), and the bearing outer ring (4) and the wheel shaft (2) rotate relative to each other through the rolling bodies (5).

2. A stroller wheel assembly according to claim 1, wherein: the wheel is characterized in that a through mounting hole (3-1) is formed in the center of the wheel (3), the bearing outer ring (4) is assembled and fixed in the mounting hole (3-1), a central cover plate (6) matched with the wheel is arranged at the center of the outer side of the wheel (3), and the central cover plate (6) is arranged at the outer side of the exposed end of the mounting hole (3-1), the bearing outer ring (4) and the wheel shaft (2) in a blocking mode.

3. A stroller wheel assembly according to claim 2, wherein: the central cover plate (6) is in clamping fit with the outer side part of the wheel (3).

4. A stroller wheel assembly according to claim 1, wherein: the annular groove (2-1) is formed in the outer side of the wheel shaft (2), a cap body portion (2-2) extending outwards in the circumferential direction is formed in the portion, located on the outer side of the annular groove (2-1), of the wheel shaft (2), and the diameter of the cap body portion (2-2) is larger than the main diameter of the wheel shaft (2).

5. A stroller wheel assembly according to claim 1, wherein: the inner side of the wheel shaft (2) is provided with an annular mounting groove (2-3) corresponding to the frame (1), and the inner side end of the wheel shaft (2) is a cone part (2-4) which is gradually reduced from outside to inside.

6. A stroller wheel assembly according to claim 1, wherein: a retainer is arranged between the bearing outer ring (4) and the annular groove (2-1), the retainer is provided with pockets corresponding to the rolling bodies (5), and the rolling bodies (5) are arranged in the pockets of the retainer at intervals.