CN219544422U

CN219544422U - Spoke-changeable castor

Info

Publication number: CN219544422U
Application number: CN202320534524.3U
Authority: CN
Inventors: 邹兰; 练昌伟; 朱土芬; 李佳; 李想
Original assignee: Zhongshan Changzhi Hardware Products Co ltd
Current assignee: Zhongshan Changzhi Hardware Products Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-08-18
Anticipated expiration: 2033-03-16

Abstract

The utility model discloses a spoke-changing castor, which comprises a castor body, a bearing and two bearing seats, wherein the castor body comprises an inner ring body, a ring plate and an outer ring body, the outer ring body and the inner ring body are coaxially arranged, the outer ring body is positioned at the outer side of the inner ring body, the ring plate is positioned between the outer ring body and the inner ring body, and the ring plate is respectively connected with the outer ring body and the inner ring body; the bearing is fixed in the central hole of the inner ring body, the two bearing seats are respectively inserted into the central hole from two ends of the central hole, the bearing is sleeved on the two bearing seats, and the two bearing seats are respectively provided with a perforation penetrating the bearing seats and being in butt joint with each other; a plurality of spokes extending along the radial direction of the inner ring body are arranged on two side surfaces of the ring plate, and two ends of each spoke are respectively connected with the outer ring body and the inner ring body; the spokes have a width that gradually decreases and then gradually increases in a direction extending from the inner ring body to the outer ring body. The utility model can strengthen the connection strength of the two ends of the spoke and improve the load carrying performance of the caster.

Description

Spoke-changeable castor

Technical Field

The utility model relates to the technical field of casters, in particular to a spoke-changeable caster.

Background

The casters are widely used, and products such as chairs, tables, hand-held bags and the like in life are required to be used, and industrial transportation vehicles and various production equipment are also required to be used. With the improvement of the caster manufacturing process, the bearing capacity of the casters is gradually increased. However, the width of the spoke of the existing caster is generally uniform, as shown in the chinese patent publication No. CN2875850, and two ends of the spoke are respectively connected with the inner ring and the outer ring, which is a main stress point, and if the spoke width is uniform, the connection strength of the two ends of the spoke cannot be improved, resulting in poor overall load carrying performance.

Disclosure of Invention

The utility model provides a caster with changeable spokes, which can strengthen the connection strength of two ends of the spokes and improve the load carrying performance of the caster.

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

the embodiment of the utility model provides a spoke-changing castor, which comprises a castor body, a bearing and two bearing seats, wherein the castor body comprises an inner ring body, a ring plate and an outer ring body, the outer ring body and the inner ring body are coaxially arranged, the outer ring body is positioned at the outer side of the inner ring body, the ring plate is positioned between the outer ring body and the inner ring body, and the ring plate is respectively connected with the outer ring body and the inner ring body; the bearing is fixed in the central hole of the inner ring body, the two bearing seats are respectively inserted into the central hole from two ends of the central hole, the bearing is sleeved on the two bearing seats, and the two bearing seats are respectively provided with a perforation penetrating the bearing seats and being in butt joint with each other; a plurality of spokes extending along the radial direction of the inner ring body are arranged on two side surfaces of the ring plate, and two ends of each spoke are respectively connected with the outer ring body and the inner ring body; the spokes have a width that gradually decreases and then gradually increases in a direction extending from the inner ring body to the outer ring body.

In some embodiments, the outer side surface of the spoke near one end of the outer ring body and the outer side surface of the spoke near one end of the inner ring body are both arc-shaped.

In some embodiments, the spokes have a smaller width near the end of the outer ring than near the end of the inner ring.

In some embodiments, the bearing housing comprises a central post, the central posts of the two bearing housings are abutted together, and the bearings are all sleeved on the central posts of the two bearing housings.

In some embodiments, the peripheral surface of the central column is provided with protruding positioning cylinders, the positioning cylinders of the two bearing seats are respectively positioned at two sides of the bearing, and the positioning cylinders of the two bearing seats are both abutted against the bearing.

In some embodiments, the bearing housing further comprises a cover plate located at an outboard end of the central post and connected to the central post, the perforations extending through the central post and the cover plate, the cover plate covering the central aperture.

In some embodiments, grooves are formed in two sides of the inner ring body, the central hole is formed in the bottom of the groove, the inner diameter of the groove is larger than that of the central hole, and a part of the cover plate is embedded in the groove.

The utility model has at least the following beneficial effects: in the direction extending from the inner ring body to the outer ring body, the width of the spoke on the caster wheel is gradually reduced and then gradually increased, so that the widths of the two ends of the spoke are larger, the connection strength of the two ends of the spoke with the inner ring body and the outer ring body can be respectively enhanced, the main stress point of the spoke can bear larger pressure, and the load carrying performance of the caster wheel is improved.

Drawings

FIG. 1 is a schematic view of a spoke-modified castor in accordance with one embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a spoke-modified castor in accordance with one embodiment of the present utility model;

fig. 3 is an exploded view of a spoke-changing caster in accordance with an embodiment of the present utility model.

Wherein, the reference numerals are as follows:

center hole 101, groove 102, inner ring 110, ring plate 120, outer ring 130, spoke 140;

a bearing 200;

bearing housing 300, perforation 301, center post 310, positioning cartridge 320, cover plate 330.

Detailed Description

The disclosure provides a thorough understanding of various embodiments of the disclosure as defined by the claims and their equivalents, with reference to the following description of the drawings. The description includes various specific details to aid in understanding, but these details should be regarded as merely exemplary. Accordingly, one of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of the functions and constructions of the disclosed embodiments may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to literal meanings, but are only used by the inventors to enable a clear and consistent understanding of the disclosure. Thus, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

The terms "having," "can have," "including," or "can include" as used in various embodiments of the present disclosure indicate the presence of a corresponding function, operation, element or the like disclosed, but are not limited to additional one or more functions, operations, elements or the like. Furthermore, it should be understood that the terms "comprises" or "comprising," when used in various embodiments of the present disclosure, are intended to specify the presence of stated features, integers, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, components, or groups thereof.

It will be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element, or there can be an intervening element (e.g., a third element) between the element and the other element.

1-3, the caster with changeable spokes according to the present utility model includes a wheel body, a bearing 200 and two bearing seats 300, wherein the wheel body includes an inner ring body 110, a ring plate 120 and an outer ring body 130, the outer ring body 130 and the inner ring body 110 are coaxially arranged, the outer ring body 130 is located at the outer side of the inner ring body 110, the ring plate 120 is located between the outer ring body 130 and the inner ring body 110, the ring plate 120 is respectively connected with the outer ring body 130 and the inner ring body 110, the center of the inner ring body 110 is provided with a central hole 101 penetrating through the center of the inner ring body 110 along the axial direction thereof, the bearing 200 is fixed in the central hole 101 of the inner ring body 110, and specifically, the outer ring of the bearing 200 can be in interference fit with the central hole 101. The two bearing seats 300 are respectively inserted into the central hole 101 from both ends of the central hole 101, the inner rings of the bearing 200 are sleeved on the two bearing seats 300, and the two bearing seats 300 are provided with through holes 301 penetrating themselves and abutting each other. When assembling the caster, the caster needs to be connected to the bracket, and bolts are provided on the two support arms of the bracket, and the bolts need to pass through the through holes 301 to be connected to the caster. The two side surfaces of the annular plate 120 are provided with a plurality of spokes 140 extending along the radial direction of the inner annular body 110, and two ends of the spokes 140 are respectively connected with the outer annular body 130 and the inner annular body 110. The spokes 140 have a width that gradually decreases and then gradually increases in a direction extending from the inner ring 110 to the outer ring 130. Therefore, the widths of the two ends of the spoke 140 are larger, the connection strength between the two ends of the spoke 140 and the inner ring body 110 and the outer ring body 130 can be respectively enhanced, the main stress points of the spoke 140 can bear larger pressure, and the loading performance of the whole caster is improved.

In this embodiment, the inner ring 110, the ring plate 120, the outer ring 130 and the spokes 140 may be integrally connected to enhance the connection strength, and also facilitate the manufacturing and shaping.

In one embodiment, the outer ring 130 may be made thicker, and the outer circumference of the outer ring 130 directly contacts the ground to directly receive pressure when the caster is used, which may simplify the manufacturing process.

In another embodiment, the outer peripheral surface of the outer ring 130 is coated with a gel, and the gel can be attached to the outer peripheral surface of the outer ring 130 by two-shot molding, and the gel is directly contacted with the ground when using the caster. Compared with the previous embodiment, the colloid can be made of more wear-resistant materials, so that the service life of the caster is longer.

In some embodiments, the outer side of the spoke 140 near one end of the outer ring 130 and the outer side of the spoke 140 near one end of the inner ring 110 are circular arcs, i.e. as shown in fig. 2, the outer sides of both ends of the spoke 140 are circular arcs to more smoothly transition, so that the spoke 140 is easier to be demolded and molded.

In some embodiments, the width of the spokes 140 near the end of the outer ring 130 is smaller than the width of the spokes 140 near the end of the inner ring 110, because the inner ring 110 is provided with a central hole 101, which loses structural strength, and the structural strength of the inner ring 110 is enhanced by the wider spokes 140.

In some embodiments, the bearing seats 300 include a center post 310, the center post 310 is disposed coaxially with the center hole 101, the ends of the center posts 310 of the two bearing seats 300 that are close to each other abut together to limit the two bearing seats 300 from sliding in the axial direction, and the bearings 200 are each sleeved on the center post 310 of the two bearing seats 300.

Further, a protruding positioning cylinder 320 is disposed on the peripheral surface of the central column 310, the positioning cylinder 320 is disposed coaxially with the central column 310, and the outer diameter of the positioning cylinder 320 is larger than that of the central column 310. The positioning cylinders 320 of the two bearing seats 300 are respectively located at two sides of the bearing 200, and the positioning cylinders 320 of the two bearing seats 300 are abutted against the bearing 200, specifically, the inner ring of the bearing 200. On the one hand, the two positioning cylinders 320 limit the bearing 200 from both sides, and limit the bearing 200 to slide in the axial direction, on the other hand, the bearing 200 can also play a guiding role on the bearing 300, so that the center post 310 is kept coaxial with the bearing 200.

In some embodiments, the bearing housing 300 further includes a cover plate 330 disposed at an outer end of the center post 310 and connected to the center post 310, and the through holes 301 extend through the center post 310 and the cover plate 330, and the cover plate 330 covers the center hole 101, which plays a role of dust prevention and reduces the entry of impurities such as dust into the center hole 101.

Further, grooves 102 are formed in two sides of the inner ring body 110, a central hole 101 is formed in the bottom of the grooves 102, two ends of the central hole 101 are respectively communicated with the two grooves 102, the inner diameter of the grooves 102 is larger than that of the central hole 101, a part of the cover plate 330 is embedded in the grooves 102, and therefore the difficulty of entering the central hole 101 from impurity substances such as dust is increased, and the dustproof effect is improved.

The foregoing is a further detailed description of the utility model in connection with specific embodiments, and it is not intended that the utility model be limited to such description. It will be apparent to those skilled in the art that several simple deductions or substitutions can be made without departing from the spirit of the utility model.

Claims

1. A caster with variable spokes, characterized in that: the wheel body comprises an inner ring body, a ring plate and an outer ring body, wherein the outer ring body and the inner ring body are coaxially arranged, the outer ring body is positioned at the outer side of the inner ring body, the ring plate is positioned between the outer ring body and the inner ring body, and the ring plate is respectively connected with the outer ring body and the inner ring body; the bearing is fixed in the central hole of the inner ring body, the two bearing seats are respectively inserted into the central hole from two ends of the central hole, the bearing is sleeved on the two bearing seats, and the two bearing seats are respectively provided with a perforation penetrating the bearing seats and being in butt joint with each other; a plurality of spokes extending along the radial direction of the inner ring body are arranged on two side surfaces of the ring plate, and two ends of each spoke are respectively connected with the outer ring body and the inner ring body; the spokes have a width that gradually decreases and then gradually increases in a direction extending from the inner ring body to the outer ring body.

2. The spoke-changing caster of claim 1, wherein: the outer side surface of the spoke, which is close to one end of the outer ring body, and the outer side surface of the spoke, which is close to one end of the inner ring body, are arc-shaped.

3. The spoke-changing caster of claim 1, wherein: the width of one end of the spoke, which is close to the outer ring body, is smaller than that of one end of the spoke, which is close to the inner ring body.

4. A spoke-changing caster according to any one of claims 1-3, wherein: the bearing seat comprises a central column, the central columns of the two bearing seats are abutted together, and the bearings are sleeved on the central columns of the two bearing seats.

5. The spoke-changing caster of claim 4, wherein: the peripheral face of center post is provided with convex positioning tube, and the positioning tube of two bearing frames is located the both sides of bearing respectively, and the positioning tube of two bearing frames all butt bearing.

6. The spoke-changing caster of claim 4, wherein: the bearing seat also comprises a cover plate which is positioned at the outer side end of the central column and connected with the central column, the perforation penetrates through the central column and the cover plate, and the cover plate covers the central hole.

7. The spoke-changing caster of claim 6, wherein: the inner ring body is characterized in that grooves are formed in two sides of the inner ring body, the central hole is formed in the bottom of the groove, the inner diameter of the groove is larger than that of the central hole, and a part of the cover plate is embedded in the groove.