CN212765473U - Impact-resistant rim - Google Patents

Abstract

The utility model provides an impact-resistant rim, relates to the bicycle field, includes outer rim and sets up the interior rim at outer rim inboard, and two-wheel shoulder deviates from the outside circumference extension of centre of a circle and is connected in order to form the whole rim that has the cavity with the both sides of outer rim respectively from interior rim both sides. A reinforcing annular structure which is recessed in a direction deviating from the circle center is arranged in the middle of the inner rim, and a reinforcing rib ring arranged in the cavity extends from the middle of the reinforcing annular structure positioned on the inner rim to the inner surface of the outer rim so that the cavity is divided into two independent sub-chambers; the outer rim is provided with a plurality of outer ring spoke mounting holes which are alternately arranged left and right relative to the center line of the connecting line between the two wheel shoulders, the inner rim is provided with a plurality of inner ring spoke mounting holes corresponding to the outer ring spoke mounting holes, and the aperture of the outer ring spoke mounting holes is larger than that of the inner ring spoke mounting holes. The wheel rim is provided with the reinforcing rib rings and the reinforcing annular structures, so that the stress area is increased, and the impact resistance of the wheel rim is improved.

Description

Impact-resistant rim

Technical Field

The utility model relates to a bicycle field especially relates to an impact-resistant wheel rim.

Background

BICYCLE cross-country is called BMX for short, and BICYCLE MOTOCROSS is a BICYCLE cross-country sport which is made up in the United states in the middle and later period of the 70 s, and the sport is popular among young people quickly, and various high-performance cross-country BICYCLEs are born as the sport enters China. At present, the stress point of a common rim of the existing cross-country bicycle is in the middle of the middle, and the shock resistance is poor.

In view of the above, there is a need for an improved rim for a conventional all terrain bicycle.

Disclosure of Invention

To the above problem, the utility model provides an impact-resistant wheel rim, its specific technical scheme as follows:

an impact-resistant rim comprises an outer rim and an inner rim concentrically arranged in the outer rim, wherein two wheel shoulders extend outwards and circumferentially from two sides of the inner rim away from a circle center and are respectively connected with two sides of the outer rim to form the whole rim with a cavity, a reinforcing annular structure which is recessed away from the circle center is arranged in the middle of the inner rim, and a reinforcing rib ring arranged in the cavity extends from the middle of the reinforcing annular structure on the inner rim to the inner surface of the outer rim so that the cavity is divided into two independent sub-chambers; the outer rim is provided with a plurality of outer rim spoke mounting holes which are alternately arranged left and right relative to the center line of the connecting line between the two wheel shoulders, the inner rim is provided with a plurality of inner rim spoke mounting holes corresponding to the outer rim spoke mounting holes, and the diameter of each outer rim spoke mounting hole is larger than that of each inner rim spoke mounting hole.

As the utility model discloses a further improvement and refine, interior rim includes first inner circle ring, second inner circle ring and go-between, wherein the go-between does strengthen annular structure, its both sides are connected respectively first inner circle ring with one side wherein of second inner circle ring, the opposite side of first inner circle ring with the opposite side of second inner circle ring respectively with correspond one side the wheel shoulder is connected.

As the utility model discloses a further improvement and refine, the cross sectional shape of go-between is the V type, the most advanced orientation of V type of go-between the cavity, two V type ends respectively with first inner circle ring and second inner circle ring are connected as an organic wholely.

As a further improvement and refinement of the present invention, the first inner ring and the second inner ring are opposite to each other two central lines of the connecting line between the wheel shoulders are symmetrically arranged and form an acute angle with the horizontal plane to make the inner ring cross section is W-shaped.

As the utility model discloses a further improvement and refine, two the wheel shoulder is higher than the part of foreign steamer circle with foreign steamer circle forms the mounting groove and is used for installing the tire.

As a further improvement and refinement of the present invention, two the outermost ends of the shoulders have oppositely extending collars for snap-fitting the tire.

The utility model discloses beneficial effect:

the utility model discloses a be provided with on the interior rim of wheel rim and strengthen annular structure to set up the wheel rim structure that the strengthening rib ring becomes the double-blast pipe trend in the cavity of whole wheel rim, increased the intensity of whole wheel rim, improved crushing resistance.

And a plurality of outer ring spoke mounting holes which are arranged in a left-right alternating manner relative to the central line of the connecting line between the two wheel shoulders are formed in the outer rim, a plurality of inner ring spoke mounting holes corresponding to the outer ring spoke mounting holes are formed in the inner rim, and the aperture of each outer ring spoke mounting hole is larger than that of each inner ring spoke mounting hole, so that the stress spokes can be mounted on the left side and the right side of the rim, the stress area is increased, and the impact resistance of the rim is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic three-dimensional structure diagram of an impact-resistant rim provided by the present invention;

FIG. 2 is a cross-sectional view of an impact resistant rim (partially shown) provided by the present invention;

fig. 3 is a cross-sectional view of the impact-resistant rim provided by the present invention when a spoke is installed;

FIG. 4 is a cross-sectional view of a conventional rim for a conventional BMX;

fig. 5 is a cross-sectional view of a conventional BMX rim with spokes attached thereto.

Wherein, the main element symbol explanation is as follows:

100-impact resistant rim; 101-an outer rim; 1011-outer ring spoke mounting holes; 102-an inner race; 1021-wheel shoulder; 1022 — a first inner ring; 1023-a second inner ring; 1024-connecting ring; 1025-inner ring spoke mounting holes; 103-a stiffener ring;

200-conventional BMX rim.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Hereinafter, an impact-resistant rim according to the present invention will be described in more detail with reference to an embodiment and the accompanying drawings.

In this embodiment, an impact resistant rim as shown in fig. 1 and 2 comprises an outer rim 101 and an inner rim 102 concentrically arranged within the outer rim 102. two shoulders 1021 extend circumferentially outwardly from both sides of the inner rim 102 away from the center of the circle and are connected to both sides of the outer rim 101 to form a complete rim with a cavity.

With continued reference to fig. 2, a reinforcing ring structure recessed away from the center of the circle is disposed at the middle portion of the inner rim 102, and a reinforcing rib ring 103 disposed in the cavity extends from the middle of the reinforcing ring structure disposed on the inner rim 102 to the inner surface of the outer rim 101, so that the cavity is divided into two independent sub-chambers to form a dual-duct structure. The outer rim 101 is provided with a plurality of outer ring spoke mounting holes 1011 which are arranged in a left-right alternating manner relative to a central line of a connecting line between two shoulders 1021, the inner rim 102 is provided with a plurality of inner ring spoke mounting holes 1025 which correspond to the plurality of outer ring spoke mounting holes 1011, and the aperture of the outer ring spoke mounting holes 1011 is larger than that of the inner ring spoke mounting holes 1025.

With reference to fig. 2, as a further refinement of the present embodiment, the inner ring includes a first inner ring 1022, a second inner ring 1023 and a connection ring 1024, where the connection ring 1024 is the above-mentioned reinforced annular structure, two sides of the connection ring are respectively connected to one side of the first inner ring 1022 and the second inner ring 1023, and the other side of the first inner ring 1022 and the other side of the second inner ring 1023 are respectively connected to the wheel shoulder 1021 on the corresponding side.

In this embodiment, the cross-sectional shape of the connection ring 1024 is V-shaped, the V-shaped tip of the connection ring 1024 faces the cavity, and the two V-shaped ends are respectively connected with the first inner ring 1022 and the second inner ring 1023 as a whole.

In the present embodiment, as shown in fig. 2 and 3, the first inner ring 1022 and the second inner ring 1023 are symmetrically arranged with respect to a centerline of a line connecting the two wheel shoulders 1021 and form an acute angle with a horizontal plane so that the inner ring has a W-shaped cross section.

In the present embodiment, the portion of the shoulder 1021 higher than the outer rim 101 forms a mounting groove for mounting the tire with the outer rim 101. Wherein, the outermost end of the two wheel shoulders 1021 is provided with convex rings which extend oppositely and are used for clamping and embedding the tire.

The V-shaped connecting ring is arranged on the inner ring 102 of the rim to serve as a reinforcing annular structure, and the reinforcing rib rings 103 are arranged in the cavity of the whole rim to form a rim structure with the trend of double air pipes, so that the strength of the whole rim is improved, and the pressure resistance is improved.

And, set up a plurality of outer ring spoke mounting holes 1011 that alternate arrangement about the central line of line between two relative shoulders 1021 on outer rim 101, set up a plurality of inner circle spoke mounting holes 1025 corresponding with a plurality of outer ring spoke mounting holes 1011 on inner rim 102, and the aperture of outer ring spoke mounting hole 1011 is greater than the aperture of inner circle spoke mounting hole 1025 and is used for installing the atress spoke, consequently a plurality of atress spokes can install respectively in the left and right sides of this rim, and form certain contained angle each other, and then increased the atress area scope, make the impact resistance of rim obtain promoting.

Compared with the conventional rim structure shown in fig. 4 and 5, in use, the impact-resistant rim provided by the embodiment has the advantages that the plurality of reinforcing structures are designed on the rim, and the stressed spokes can be respectively arranged on two sides, so that the stressed area is increased, the compressive strength, the torsion force and the fatigue resistance are high, and the impact resistance of the rim in the embodiment is higher than that of a common rim by more than 50%.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. An impact-resistant rim is characterized by comprising an outer rim and an inner rim concentrically arranged in the outer rim, two wheel shoulders extend outwards and circumferentially from two sides of the inner rim departing from a circle center and are respectively connected with two sides of the outer rim to form the whole rim with a cavity,

a reinforcing ring structure which is recessed in a direction deviating from the circle center is arranged in the middle of the inner ring, and a reinforcing rib ring arranged in the cavity extends from the middle of the reinforcing ring structure on the inner ring to the inner surface of the outer ring, so that the cavity is divided into two independent sub-chambers;

the outer rim is provided with a plurality of outer rim spoke mounting holes which are alternately arranged left and right relative to the center line of the connecting line between the two wheel shoulders, the inner rim is provided with a plurality of inner rim spoke mounting holes corresponding to the outer rim spoke mounting holes, and the diameter of each outer rim spoke mounting hole is larger than that of each inner rim spoke mounting hole.

2. The impact-resistant rim according to claim 1, wherein said inner rim includes a first inner rim ring, a second inner rim ring and a connecting ring, wherein said connecting ring is of said reinforced annular structure, two sides of said connecting ring are respectively connected to one side of said first inner rim ring and one side of said second inner rim ring, and the other side of said first inner rim ring and the other side of said second inner rim ring are respectively connected to said wheel shoulder on the corresponding side.

3. An impact-resistant rim according to claim 2, wherein the connecting ring has a V-shaped cross-sectional shape, a V-shaped tip of the connecting ring faces the cavity, and both V-shaped ends are integrally connected to the first inner ring and the second inner ring, respectively.

4. An impact-resistant rim according to claim 3 wherein said first inner ring and said second inner ring are symmetrically disposed about a centerline connecting said shoulders and form an acute angle with a horizontal plane to provide said inner ring with a W-shaped cross-section.

5. An impact-resistant rim according to claim 1, wherein the portions of the shoulders which are raised above the outer rim form mounting grooves with the outer rim for mounting a tire.

6. An impact-resistant rim according to claim 1, wherein the shoulders have oppositely extending lugs at their outermost ends for engaging a tire.

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