CN220576979U

CN220576979U - Luggage wheel

Info

Publication number: CN220576979U
Application number: CN202322136985.8U
Authority: CN
Inventors: 张国辉
Original assignee: Guangzhou Enju Luggage Accessories Manufacturing Co ltd
Current assignee: Guangzhou Enju Luggage Accessories Manufacturing Co ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-03-12
Anticipated expiration: 2033-08-09

Abstract

The utility model discloses a luggage big wheel, which comprises a mounting seat, an axle, a wheel body, a first shaft sleeve and a second shaft sleeve, wherein the axle is arranged on the mounting seat; one end of the axle is fixedly connected with the mounting seat, and the other end of the axle is inserted into the first shaft sleeve and connected with the first shaft sleeve; the middle part of the wheel body is provided with a through hole which is penetrated, and the second shaft sleeve penetrates through the through hole and is spliced with the wheel body; the first shaft sleeve is inserted into the second shaft sleeve and is in rotating fit with the second shaft sleeve; the outer circumferential side wall of the first shaft sleeve is provided with a plurality of oil storage tanks, and the wheel body is provided with at least one first oil guide hole; the second sleeve is provided with a second oil guide hole at a corresponding position, and the second oil guide hole is communicated with one of the oil storage tanks; one end of the first shaft sleeve, which is far away from the mounting seat, is also provided with an end cover; according to the utility model, the rotation friction between the axle and the wheel body is transferred between the first shaft sleeve and the second shaft sleeve, so that the abrasion of the axle and the wheel body is effectively reduced; and secondly, the heat dissipation and cooling functions are realized, and deformation and adhesion of the first shaft sleeve and the second shaft sleeve caused by friction heating are avoided.

Description

Luggage wheel

Technical Field

The utility model relates to the field of travel consignment products, in particular to a fitting applied to a luggage bag.

Background

In recent years, large wheels with diameters greater than 10 cm are installed on luggage bags for traveling vehicles. The large wheel cannot flexibly turn like a universal wheel, but has the advantages of space saving, strong shock resistance and the like. The large wheel generally comprises a hub, a tire mounted on the outer periphery of the hub, and an axle inserted into a through hole in the center of the hub for supporting the hub to rotate. Of course, there are also technologies for integrally forming a hub and a tire, which constitute a wheel body. In the rotating process of the large wheel, the axle and the wheel hub are in long-time rotating friction contact, abrasion is easy to occur, after friction heating, abrasion is aggravated, and the phenomenon that the contact surfaces are adhered together is easy to occur between the axle and the wheel hub. As the axle and the hub are generally made of injection molding materials, the melting point is lower, and the adhesion phenomenon is more obvious.

Secondly, the wheel axle can only support the axial rotation of the wheel hub, and the radial movement of the wheel axle cannot be limited, so that the wheel hub is easy to swing left and right in the rotation process, noise is generated, and the look and experience are poor; on the other hand, the stress of the hub is uneven, the abrasion is accelerated, and the breakage of the hub is even easy to be caused.

Disclosure of Invention

Aiming at the defects and problems in the prior art, the utility model aims to provide the luggage wheel which has compact installation structure of various parts, limited axle center position of the wheel body, friction and heating functions of relieving friction parts and prolonging the service lives of the wheel body and the axle.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a luggage big wheel comprises a mounting seat, an axle, a wheel body, a first shaft sleeve and a second shaft sleeve; one end of the axle is fixedly connected with the mounting seat, and the other end of the axle is inserted into the first shaft sleeve and connected with the first shaft sleeve; the middle part of the wheel body is provided with a through hole which penetrates through, and the second sleeve penetrates through the through hole and is spliced with the wheel body; the first shaft sleeve is inserted into the second shaft sleeve and is in running fit with the second shaft sleeve; a plurality of oil storage tanks are arranged on the outer circumferential side wall of the first shaft sleeve, the wheel body is provided with at least one first oil guide hole, a second oil guide hole is arranged at a position corresponding to the second shaft sleeve, and the second oil guide hole is communicated with one of the oil storage tanks; one end of the first shaft sleeve, which is far away from the mounting seat, is also provided with an end cover; the outer peripheral dimension of the end cap is greater than the inner diameter of the through hole.

Preferably, the mounting seat and the axle are integrally formed.

Preferably, one end, close to the mounting seat, of the second sleeve is provided with an annular baffle with the peripheral dimension larger than the inner diameter of the through hole, and the linear distance from the annular baffle to the end cover is matched with the depth of the through hole.

Preferably, the axle is uniformly provided with a plurality of heat dissipation holes penetrating along the axial direction of the axle.

Preferably, the axle is provided with a plurality of cavities extending inwards along the axial direction of the axle; the cavity opening is positioned on the end face of one end, far away from the mounting seat, of the axle; the end cap closes the cavity opening.

Preferably, the vehicle axle and the end cover further comprise rivets, and rivet holes through which the rivets can pass are formed in the vehicle axle and the end cover.

Preferably, the novel wheel cover further comprises a wheel cover, a clamping groove is formed in the outer side of the end cover, and supporting legs which are clamped with the wheel cover are arranged on the wheel cover.

Preferably, the second sleeve has a cylindrical structure, the outer circumferential side wall of the second sleeve or the inner circumferential side wall of the through hole is uniformly provided with grooves, and the inner circumferential side wall of the through hole or the outer circumferential side wall of the second sleeve is provided with clamping strips matched with the grooves.

Preferably, the inner side wall of the end cover facing the cavity is provided with an insert block clamped into the cavity opening or the heat dissipation hole.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model adds the first shaft sleeve and the second shaft sleeve between the axle and the wheel body of the conventional wheel body structure. The first shaft sleeve is linked with the axle, and the second shaft sleeve is linked with the wheel body, so that the rotation friction between the conventional axle and the wheel body is transferred between the first shaft sleeve and the second shaft sleeve. The operation can effectively reduce the abrasion of the axle and the wheel body, prolong the service life of the axle and the wheel body, and has low maintenance and replacement cost and resource conservation. And secondly, by arranging the structures such as the oil storage tank, the end cover, the cavity, the heat dissipation holes and the like, the cooling and heat dissipation of the rotating friction parts of the first shaft sleeve and the second shaft sleeve are quickened, the deformation and adhesion between the first shaft sleeve and the second shaft sleeve caused by overheating are effectively avoided, and the service lives of the first shaft sleeve and the second shaft sleeve are prolonged. Further, the wheel body is limited by the end cover and the annular baffle, and the axial position is not moved in the rotation process, so that the problem that the wheel body easily swings left and right in the prior art is solved.

Drawings

FIG. 1 is an exploded view of an embodiment of the present utility model;

FIG. 2 is a front view of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a perspective view of an embodiment of the present utility model;

FIG. 5 is a front view of a mounting base according to an embodiment of the present utility model;

FIG. 6 is a B-B cross-sectional view of FIG. 5;

FIG. 7 is a schematic view of the wheel according to the embodiment of the present utility model;

FIG. 8 is a full cross-sectional view of a first sleeve according to an embodiment of the present utility model;

fig. 9 is a schematic structural view of a wheel cover according to an embodiment of the present utility model.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The utility model is further described below with reference to fig. 1-9 and the detailed description:

the embodiment of the utility model discloses a large wheel applied to a luggage bag, which comprises a mounting seat 1, an axle 2, a wheel body 4, a first shaft sleeve 5 and a second shaft sleeve 3. The axle 2 is fixedly arranged at one side of the mounting seat 1; the other side of the mount 1 is in contact with the body of the luggage. The mount 1 is used for mounting an axle 2 and other components on the body of a luggage case. The axle 2 is inserted into the first shaft sleeve 5 and is linked with the first shaft sleeve 5; the middle part of the wheel body 4 is provided with a through hole 40 which is penetrated, and the second shaft sleeve 3 is inserted into the through hole 40 and is linked with the wheel body 4. The first sleeve 5 is inserted in the second sleeve 3 and is in a running fit therewith. Since the first sleeve 5 and the second sleeve 3 are relatively rotatable, the first sleeve 5 has an outer circumferential side wall and the second sleeve 3 has an inner circumferential side wall. The first sleeve 5 is provided with a plurality of oil storage grooves 50 on an outer circumferential side wall thereof. At least one first oil guide hole 41 is arranged on the wheel body 4, a second oil guide hole 30 is arranged at a position corresponding to the second shaft sleeve 3, and the second oil guide hole 30 is communicated with one of the oil storage tanks 50. The oil reservoir 50 may extend along the outer circumferential side wall of the first sleeve with a start point and an end point; it is also possible to surround the outer circumferential side wall of the first sleeve 5 for a circumference as shown in the drawings. The first shaft sleeve 5 is far away from one end of the mounting seat 1 and is also provided with an end cover 51; the outer circumferential dimension of the end cap 51 is greater than the inner diameter of the through hole 40. The end cover 51 and the first sleeve 5 may be separate members or may be integrally formed. The end cap 51 shown in the drawings of this embodiment is integrally formed with the first sleeve 5.

The principle of the embodiment of the utility model is that a first shaft sleeve 5 and a second shaft sleeve 3 are additionally arranged between an axle 2 and a wheel body 4 of a conventional wheel body structure. The first sleeve 5 is interlocked with the axle 2, and the second sleeve 3 is interlocked with the wheel body 4, so that the rotational friction between the conventional axle 2 and the wheel body 4 is transferred between the first sleeve 5 and the second sleeve 3. The operation can effectively reduce the abrasion of the axle 2 and the wheel body 4, prolong the service life of the axle 2 and the wheel body 4, and has low maintenance and replacement cost and resource conservation. Further, according to the large wheel structure of the assembled parts of fig. 1-4 of the specification, a space with a second oil guiding hole 30 is formed among the outer circumferential side wall of the first shaft sleeve 5, the oil storage tank 50, the end cover 51, the inner circumferential side wall of the second shaft sleeve 3 and the mounting seat 1, and other parts are relatively closed. The space is initially filled with a high Wen Huangyou resistant to high temperatures and lubrication. Because the first shaft sleeve 5 and the second shaft sleeve 3 rotate and rub, the contacted part is easy to be heated up, the abrasion is aggravated, and the adhesion is easy to occur. The high-temperature grease can relieve high heat caused by friction, and has the functions of cooling and radiating. When the height Wen Huangyou is gradually depleted, a user can inject the height Wen Huangyou into the space through the first oil guide hole 41 on the wheel body 4, so that the use is convenient and quick. The outer peripheral dimension of the end cap 51 is larger than the inner diameter of the through hole, so that the positions of the wheel body 4 and the second sleeve 3 in the axial direction are defined between the mount 1 and the end cap 51. This operation prevents the wheel body 4 from falling off during the long-time rotation, and restricts the axial position of the wheel body 4 to avoid the side-to-side swing during the rotation.

In order to further optimize the cooling and heat dissipation effects of the large wheel, the axle 2 is uniformly provided with a plurality of cavities 20 extending inwards along the axial direction of the axle 2; the cavity 20 is open on the end face of the axle 2 at the end remote from the mounting seat 1. The axle 2 is coaxially inserted into the first sleeve 5, and the end cover 51 just closes the opening of the cavity 20. The cavity 20 stores the height Wen Huangyou, and when the wheel body 4 rotates, heat can be conducted, heat dissipation is quickened, and the condition that the contact position of the first shaft sleeve 5 and the second shaft sleeve 3 is continuously high in heat is further relieved.

The axletree 2 evenly is provided with a plurality of louvres 21 that run through along axletree 2 axial direction, saves the materials of axletree 2 on the one hand, can further play cooling and radiating effect on the one hand. The mounting seat 1 and the axle 2 are integrally formed, so that the number of parts is reduced.

Further, the axle 2 of the present embodiment has a cylindrical structure, and the side surface of the first sleeve 5 contacting the same is also the inner circumferential side surface. In order to bring the two into a interlocked relationship, an inner wall of the end cover 51 of the first sleeve 5 facing the cavity 20 is provided with an insert 53 which can be engaged into the opening of the cavity 20 or the heat dissipation hole 21. Of course, in some embodiments, the portion of the axle shaft 2 that extends into the first sleeve 5 may be square in configuration or other irregular shape. The inner side of the first bushing 5 in contact with the axle shaft 2 should also match its shape. The two are matched by concave-convex, so as to achieve the linkage in the radial direction.

Further, the through hole 40 in the center of the wheel body 4 is an inner circular hole. The second sleeve 3 has a cylindrical structure, and an outer circumferential side wall of the second sleeve contacts the wheel body 4 and an inner circumferential side wall of the second sleeve contacts the first sleeve 5. The outer circumferential side wall of the second sleeve 3 is uniformly provided with grooves 32, and the inner circumferential side wall of the through hole 40 is provided with clamping strips 42 matched with the grooves. The second sleeve 3 and the wheel body 4 form a linkage in the radial direction by the cooperation of the grooves 32 and the clamping strips 42. In some embodiments, the shape of the contact portion between the through hole 40 and the second sleeve 3 may be as described in some embodiments above with reference to the axle shaft 2 and the first sleeve 3. For example, the portion of the second sleeve 3 extending into the through hole 40 may have a square structure or other irregular shape. Similarly, the linkage structure of the axle 2 and the first shaft sleeve 5 can also refer to the embodiment, wherein the wheel body 4 is matched with the groove 32 and the clamping strip 42 of the second shaft sleeve 3.

Further, an annular baffle 31 with an outer peripheral dimension larger than the inner diameter of the through hole 40 is arranged at one end of the second sleeve 3 close to the mounting seat 1. According to the above description, the through hole 40 is mainly used for the socket-coupling linkage with the second sleeve 3. After the large wheel is installed according to the attached drawings in the specification, the linear distance from the inner side of the annular baffle plate 31 to the inner side of the end cover 51 is matched with the depth of the through hole 40, and the wheel body 4 is positioned between the annular baffle plate 31 and the end cover 51 at the central part of the through hole 40. The wheel body 4 cannot freely move in the axial direction, so that the phenomenon that the wheel body swings left and right in the rotation process and is stressed unevenly is avoided. The embodiment of the utility model has compact structure and installation, the positions of all parts are limited, and the wheel body 4 is more stable and silent when rotating. As shown in fig. 1 of the specification, a recess having a size larger than that of the through hole 40 is connected to one end of the through hole 40 near the end cover 51. The concave table is used for accommodating the end cover 51, so that the end cover 51 is prevented from protruding out of the wheel body 4, and the overall attractiveness is improved.

Further, a rivet hole 60 through which the rivet 6 passes is provided at the axial center of the axle 2 and the end cover 51. The first sleeve 5, the second sleeve 3 and the wheel body 4 are mounted on the mounting base 1 through rivets 6.

Further, the embodiment further comprises a wheel cover 7, and a clamping groove 52 is formed on the outer side of the end cover 51. The wheel cover 7 is provided with a support leg 71 which is engaged with the wheel cover. Because wheel cap 7 is the joint relation with first axle sleeve 5, when wheel body 4 rotated, wheel cap 7 can keep motionless with first axle sleeve 5 along with axletree 2, so its outside is fit for printing logo or sign, and pleasing to the eye simultaneously keeps logo and sign's clear show.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the appended claims.

Claims

1. The luggage wheel is characterized by comprising a mounting seat, an axle, a wheel body, a first shaft sleeve and a second shaft sleeve; one end of the axle is fixedly connected with the mounting seat, and the other end of the axle is inserted into the first shaft sleeve and connected with the first shaft sleeve; the middle part of the wheel body is provided with a through hole which penetrates through, and the second sleeve penetrates through the through hole and is spliced with the wheel body; the first shaft sleeve is inserted into the second shaft sleeve and is in running fit with the second shaft sleeve; a plurality of oil storage tanks are arranged on the outer circumferential side wall of the first shaft sleeve, and the wheel body is provided with at least one first oil guide hole; the second sleeve is provided with a second oil guide hole at a corresponding position, and the second oil guide hole is communicated with one of the oil storage tanks; one end of the first shaft sleeve, which is far away from the mounting seat, is also provided with an end cover; the outer peripheral dimension of the end cap is greater than the inner diameter of the through hole.

2. The luggage wheel of claim 1, wherein the mounting base is integrally formed with the axle.

3. The luggage wheel according to claim 1, wherein an annular baffle plate with a peripheral dimension larger than the inner diameter of the through hole is arranged at one end of the second sleeve, which is close to the mounting seat, and the linear distance from the annular baffle plate to the end cover is matched with the depth of the through hole.

4. The luggage wheel according to claim 2, wherein the axle is uniformly provided with a plurality of heat dissipation holes penetrating along the axial direction of the axle.

5. A luggage wheel according to any one of claims 1-4, wherein the axle is provided with a plurality of cavities extending inwardly in the axial direction of the axle; the cavity opening is positioned on the end face of one end, far away from the mounting seat, of the axle; the end cap closes the cavity opening.

6. The luggage wheel of claim 2, further comprising rivets, said axle and end caps having rivet holes through which said rivets extend.

7. The luggage wheel of claim 5, further comprising a wheel cover, wherein a clamping groove is formed in the outer side of the end cover, and a supporting leg clamped with the wheel cover is arranged on the wheel cover.

8. The luggage wheel of claim 5, wherein the second hub has a cylindrical structure, the outer circumferential side wall or the inner circumferential side wall of the through hole is uniformly provided with grooves, and the inner circumferential side wall of the through hole or the outer circumferential side wall of the second hub is provided with a clamping strip matched with the grooves.

9. A luggage wheel according to claim 1 or 4, wherein the inner side wall of the end cap facing the cavity is provided with inserts which snap into the cavity openings or heat dissipation holes.