CN217671975U

CN217671975U - Rim, rim wheel set and bicycle

Info

Publication number: CN217671975U
Application number: CN202221322184.XU
Authority: CN
Inventors: 叶金吉
Original assignee: Xiamen Baiyexing Outdoor Sports Equipment Co ltd
Current assignee: Xiamen Baiyexing Outdoor Sports Equipment Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-10-28
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a rim, rim wheel set and bicycle, the rim includes the rim body, this rim body includes the both sides wall body of mutual disposition, set up the outer wall body between the outer end of this both sides wall body and set up the inner wall body between the inner of this both sides wall body, the wall body of both sides, outer wall body and inner wall body enclose into the toroidal cavity, the outer wall body is equipped with the tire groove; a plurality of convex parts and a plurality of concave parts are formed on the outer surface of the inner wall body, the convex parts protrude inwards along the radial direction of the rim body, the concave parts are sunken outwards along the radial direction of the rim body, and the convex parts and the concave parts are alternately distributed along the circumferential direction of the inner wall body; the thickness of the inner wall at the convex portion is greater than the thickness of the inner wall at the concave portion. The utility model discloses a reinforcement processing has only been done in its each convex part department to wall body in rim, rather than having done the reinforcement processing to the whole circle of inner wall body to both ensured that the intensity of rim and spoke junction is enough, reduced the whole weight of rim again.

Description

Rim, rim wheel set and bicycle

Technical Field

The utility model relates to a bicycle technical field especially relates to a rim and rim wheelset and bicycle.

Background

The bicycle wheel is the main component of the bicycle, and the rim is the main body of the bicycle wheel and is the supporting part of the bicycle. At present, the rim can be divided into a metal rim and a carbon fiber rim according to the material, wherein the carbon fiber rim is made of the carbon fiber material, and has the characteristics of light weight, simple process and the like. Carbon fiber rims typically have a hollow interior bounded by oppositely disposed side walls, an outer wall disposed between the outer ends of the side walls, and an inner wall disposed between the inner ends of the side walls. A plurality of spokes are connected between the inner wall body of the carbon fiber rim and the hub, so that the strength requirement of the position where the inner wall body of the carbon fiber rim is connected with the spokes is high. At present, the whole inner wall body of the carbon fiber rim is generally subjected to reinforcement treatment, so that the carbon fiber rim is large in thickness and high in strength. However, the reinforcement of the inner wall of the carbon fiber rim leads to a large weight of the entire rim, which is disadvantageous for the weight reduction of the rim.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that prior art exists, provide a rim and rim wheelset and bicycle, its mode that adopts local reinforcement had both ensured that the intensity of rim and spoke junction is enough, had reduced the whole weight of rim again.

The utility model provides a technical scheme that its technical problem adopted is: a rim comprises a rim body, wherein the rim body comprises two side wall bodies which are oppositely arranged, an outer wall body arranged between the outer ends of the two side wall bodies and an inner wall body arranged between the inner ends of the two side wall bodies, the outer wall body and the inner wall body enclose an annular cavity, and the outer wall body is provided with a tire groove; a plurality of convex parts and a plurality of concave parts are formed on the outer surface of the inner wall body, the convex parts protrude inwards along the radial direction of the rim body, the concave parts are sunken outwards along the radial direction of the rim body, and the convex parts and the concave parts are alternately distributed along the circumferential direction of the inner wall body; the thickness of the inner wall at the convex portion is greater than the thickness of the inner wall at the concave portion.

Furthermore, the adjacent convex parts and concave parts are in smooth transition, so that the outer surface of the inner wall body presents a wavy shape.

Furthermore, each convex part of the inner wall body is respectively provided with a spoke mounting hole, and the positions of the outer wall body corresponding to the spoke mounting holes are respectively provided with a tool operation hole.

Furthermore, the number of the spoke mounting holes of the inner wall body at each convex part is one or a plurality, and a plurality of the spoke mounting holes are distributed at intervals along the circumferential direction of the inner wall body.

Further, the inner wall is provided with a nozzle hole of the tire at a concave part for inserting the nozzle of the tire.

Furthermore, the rim body is made of carbon fiber.

The utility model provides a rim wheelset in addition, including the flower-drum, still include as above-mentioned the rim, the flower-drum is located rim body center, be connected with the spoke between each convex part of interior wall body and the flower-drum respectively.

Furthermore, the number of the spokes connected between each convex part of the inner wall body and the hub is one or more.

Further, the tire groove of the outer wall body is provided with a tire.

The utility model provides a bicycle, include as above the utility model discloses a rim wheelset.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. because the surface of interior wall body is formed with a plurality of convex parts and a plurality of concave part, just interior wall body is greater than at the thickness of convex part department interior wall body at the thickness of concave part department, makes the utility model discloses an interior wall body of rim has only been done the reinforcement in its each convex part department and has been handled, rather than having done the reinforcement to the whole circle of interior wall body and handled to both guaranteed that the intensity of rim and spoke junction is enough, reduced the whole weight of rim again, satisfied rim and realized lightweight purpose. In addition, the outer surface of the inner wall body adopts concave-convex alternate design to distinguish the reinforcement position, so that a worker can quickly find the reinforcement position when subsequently arranging spoke mounting holes and braiding wheels, and the working efficiency is improved.

2. The adjacent convex parts and concave parts are in smooth transition, so that the outer surface of the inner wall body is in a wave shape, and the appearance of the rim is more attractive and novel.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the rim wheel set and the bicycle of the present invention are not limited to the embodiments.

Drawings

Fig. 1 is a front view of a rim according to the first embodiment of the present invention;

FIG. 2 isbase:Sub>A sectional view A-A of FIG. 1 according to an embodiment;

FIG. 3 is a cross-sectional view B-B of FIG. 1 according to an embodiment;

fig. 4 is a front view of a rim wheel set according to the first embodiment of the present invention;

FIG. 5 is a front view of a wheel set according to the second embodiment of the present invention;

fig. 6 is a front view of a wheel set according to the third embodiment of the present invention.

Detailed Description

Example one

Referring to fig. 1-3, a rim of the present invention includes a rim body 1, the rim body 1 is made of carbon fiber, the rim body 1 includes two side wall bodies 11 disposed oppositely, an outer wall body 12 disposed between outer ends of the side wall bodies 11, and an inner wall body 13 disposed between inner ends of the side wall bodies 11, the outer wall body 12, and the inner wall body 13 enclose an annular cavity, and the outer wall body 12 is provided with a tire groove 121; the outer surface of the inner wall 13 is formed with a plurality of protrusions 131 and a plurality of recesses 132, the protrusions 131 protrude inward in the radial direction of the rim body 1, the recesses 132 are recessed outward in the radial direction of the rim body 1, and the protrusions 131 and the recesses 132 are alternately arranged in the circumferential direction of the inner wall 13; the thickness of the inner wall 13 at the convex portion 131 is greater than the thickness of the inner wall 13 at the concave portion 132.

In this embodiment, the adjacent convex portions 131 and concave portions 132 are smoothly transited, so that the outer surface of the inner wall 13 has a wave shape.

In this embodiment, the inner wall 13 is provided with spoke mounting holes (not shown) at the protrusions 131, and the outer wall 12 is provided with tool operation holes (not shown) at positions corresponding to the spoke mounting holes, so that a screwdriver can be inserted into the tool operation holes to screw a nut on the outer ends of the spokes when the rim is subjected to ring formation and wheel assembly.

In this embodiment, the inner wall 13 has a plurality of spoke mounting holes at the protrusions 131, and the spoke mounting holes are spaced along the circumference of the inner wall 13. Specifically, the inner wall 13 has three spoke attachment holes at each of the protrusions 131, but is not limited thereto. In other embodiments, the inner wall has one or two spoke attachment openings at each of its lobes, etc.

In this embodiment, the inner wall 13 is provided with a tire nozzle hole (not shown) at one concave portion 132 thereof for inserting the tire nozzle 4, as shown in fig. 4.

In the present embodiment, the radial dimension of the rim body 1 at the protrusion 131 is 50mm, as shown in fig. 1, but not limited thereto, and in other embodiments, the radial dimension of the rim body 1 at the protrusion 131 is 55mm or 52mm, etc. The radial dimension of the rim body 1 at the convex portion 131 is 40mm, as shown in fig. 2.

The utility model discloses a rim, because the thickness of interior wall body 13 in convex part 131 department is greater than interior wall body 13 is in the thickness of concave part 132 department, makes the utility model discloses an interior wall body 13 of rim has only been done the reinforcement in its each convex part 131 department and has been handled, rather than having done the reinforcement to the whole circle of interior wall body 13 and having handled to both ensure that the intensity of rim and spoke junction is enough, reduced the whole weight of rim again, satisfied rim and realize lightweight purpose. In addition, the outer surface of the inner wall body 13 adopts concave-convex alternate design to distinguish the reinforcement position, so that a worker can quickly find the reinforcement position when subsequently arranging spoke mounting holes and knitting rings and assembling wheels, and the working efficiency is improved.

The outer surface of the inner wall body 13 is in a wave shape, so that the appearance of the rim is more attractive and novel.

Please refer to fig. 4, the rim wheel set of the present invention includes a hub 2, and further includes the rim as described in the present invention, the hub 2 is located at the center of the rim body 1, and spokes 3 are respectively connected between each convex portion 131 of the inner wall body 13 and the hub 2. The spokes 3 are made of carbon fiber.

In this embodiment, since the number of the spoke attachment holes of the inner wall 13 at the respective protrusions 131 is three, the number of the spokes 3 connected between the respective protrusions 131 of the inner wall 13 and the hub 2 is also three, and the three spokes 3 are arranged in parallel, so that the whole rim wheel set has a novel and beautiful appearance.

In this embodiment, the tire groove 121 of the outer wall 12 is filled with a tire (not shown).

Example two

Referring to fig. 5, the present invention is a rim, which is different from the first embodiment in that: the inner wall 13 has one mounting hole for the spoke 3 at each projection 131.

Please refer to fig. 5, the difference between the first embodiment and the second embodiment of the present invention is: the inner wall 13 has one spoke mounting hole at each projection 131, and thus, the number of spokes 3 connected between each projection 131 of the inner wall 13 and the hub 2 is also one, but not limited thereto. The ends of the adjacent spokes 3 connected with the hub 2 are respectively arranged in a staggered manner.

EXAMPLE III

Referring to fig. 6, the difference between the wheel set of the present invention and the second embodiment is: each of the spokes 3 is located in the radial direction of the rim body 1.

The utility model discloses a bicycle, include as above-mentioned arbitrary embodiment the utility model discloses a rim wheelset.

The utility model discloses a rim and rim wheelset and bicycle does not relate to the part and all is the same with prior art or can adopt prior art to realize.

The above embodiments are only used to further explain the present invention, but the present invention is not limited to the embodiments, and any simple modifications, equivalent changes and modifications made by the technical entities of the present invention to the above embodiments all fall into the protection scope of the technical solution of the present invention.

Claims

1. A rim comprises a rim body, wherein the rim body comprises two side wall bodies which are oppositely arranged, an outer wall body arranged between the outer ends of the two side wall bodies and an inner wall body arranged between the inner ends of the two side wall bodies, the outer wall body and the inner wall body enclose an annular cavity, and the outer wall body is provided with a tire groove; the method is characterized in that: a plurality of convex parts and a plurality of concave parts are formed on the outer surface of the inner wall body, the convex parts protrude inwards along the radial direction of the rim body, the concave parts are sunken outwards along the radial direction of the rim body, and the convex parts and the concave parts are alternately distributed along the circumferential direction of the inner wall body; the thickness of the inner wall at the convex portion is greater than the thickness of the inner wall at the concave portion.

2. The rim of claim 1, wherein: the adjacent convex parts and concave parts are in smooth transition, so that the outer surface of the inner wall body presents a wave shape.

3. The rim of claim 1, wherein: the inner wall body is provided with spoke mounting holes at convex parts respectively, and tool operation holes are arranged at positions of the outer wall body corresponding to the spoke mounting holes respectively.

4. The rim of claim 3, wherein: the number of the spoke mounting holes of the inner wall body at each convex part is one or a plurality of spoke mounting holes, and the plurality of spoke mounting holes are distributed at intervals along the circumferential direction of the inner wall body.

5. The rim of claim 3, wherein: the inner wall is provided with an air nozzle hole of the tire at a concave part of the inner wall, and the air nozzle hole is used for penetrating through an air nozzle of the tire.

6. The rim according to any one of claims 1-5, wherein: the rim body is made of carbon fiber.

7. The utility model provides a rim wheel group, includes the flower-drum, its characterized in that: the rim according to any one of claims 1 to 6, wherein the hub is located in the center of the rim body, and spokes are respectively connected between each convex part of the inner wall and the hub.

8. The rim wheel assembly of claim 7, wherein: the number of the spokes connected between each convex part of the inner wall body and the hub is one or a plurality of spokes.

9. The rim wheel assembly of claim 7, wherein: the tire groove of the outer wall body is provided with a tire.

10. A bicycle, characterized in that: comprising a wheel rim assembly according to any one of claims 7-9.