CN215792969U

CN215792969U - Special tire-drop-preventing double-layer rim for solid rubber tire of bicycle

Info

Publication number: CN215792969U
Application number: CN202120744321.8U
Authority: CN
Inventors: 曹铃楠
Original assignee: TANGSHAN JINHENGTONG BICYCLE PARTS CO Ltd
Current assignee: TANGSHAN JINHENGTONG BICYCLE PARTS CO Ltd
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2022-02-11
Anticipated expiration: 2031-04-13

Abstract

The utility model relates to a special tire-drop-proof double-layer rim for a solid rubber tire of a bicycle, which is of an outward U-shaped structure, and the section of the double-layer rim is composed of an outer-layer top ring, an inner-layer top ring and two side edge plates with mirror symmetry at two sides, and is characterized in that: the two side edge plates are in mirror symmetry and are bent inwards at right angles to form clamping rings, the clamping rings are used for positioning the tire in a double-layer rim, and the end parts of the two clamping rings are in mirror symmetry and are bent inwards to form a hook ring. This double-deck rim all extends inwards at two rand tip of mirror symmetry and has made one and collude the circle, should collude the circle and can block into and fix a position in the tire, and then the tire is fixed, has solved the separation problem of rim and tire because of the shrink elongation rate of tire causes.

Description

Special tire-drop-preventing double-layer rim for solid rubber tire of bicycle

Technical Field

The utility model belongs to the field of bicycles, and relates to a special double-layer rim for a solid rubber tire of a bicycle, in particular to a special anti-tire-drop double-layer rim for a solid rubber tire of a bicycle.

Background

A bicycle, also called as a bicycle or a bicycle, is a green environment-friendly vehicle taking a pedal as power, and mainly comprises 25 parts, such as a frame, wheels, pedals, a brake, a chain, a middle support ladder, a rear clothes rack and the like. The wheel mainly comprises a rim, spokes, a tire and an axle. The rim is mainly divided into a single layer and a double layer. The double-layer rim is a closed ring-shaped structure formed by an integrally-made annular outer top ring, an inner top ring and two side edge plates, tires are mounted in a U-shaped space formed between the inner top ring and the two side edge plates, and the outer end edges of the two side edge plates are bent inwards for 90 degrees and extend to form a clamping ring for fixing the outer edges of the tires. Such double-deck rims suffer from the following problems: when the bicycle adopts the solid rubber tire, the solid rubber tire is adhered to the U-shaped space on the rim by strong glue before the wheel leaves a factory, so that the phenomenon of knocking over easily occurs when a rider turns at high speed, and particularly, the phenomenon is more when the temperature is high in summer. This is because a solid rubber tire has a certain shrinkage elongation and the rim collar will not be able to wrap around the tire when exceeding a certain range.

Through the search of published patent documents, the following related patent documents are found:

the utility model provides an aluminum alloy mountain bike rim (CN103568701A), includes rim (6), the diameter direction cross-section of rim (6) comprises trapezoidal (1) and two upright legs (2), upright leg (2) are connected respectively to the both ends that trapezoidal (1) went to the bottom, trapezoidal (1) go to the bottom and upright leg (2) junction is provided with pinhole (3), trapezoidal (1) upper base length is 8-11mm, trapezoidal (1) length of going to the bottom be 24-26mm, upright leg (2) lateral surface is provided with recess (4), upright leg (2) medial surface is provided with protruding (5).

Through the comparison of the utility model purpose and technical characteristics of the patent application and the patent publication, the patent publication mainly increases the tensile strength, the bending resistance and the fatigue resistance of the rim, and can play a role in protecting the tire, the wider side of the vertical leg of the section of the rim is in contact with the brake block, the area of the part is larger, so that the adjustment of the brake block is easier, and the utility model purpose and technical scheme are different from the utility model purpose and technical scheme of the tire drop prevention of the patent application, so the creativity and novelty of the patent application are not damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides the special anti-tire-drop double-layer rim for the solid rubber tire of the bicycle, which has the advantages of novel structure, scientific design and ingenious concept.

The technical scheme for realizing the purpose of the utility model is as follows:

the utility model provides a special tire-drop prevention double-deck rim of bicycle, double-deck rim is outside U type structure, and its cross-section comprises outer top ring, inlayer top ring and both sides mirror symmetry's both sides flange plate, its characterized in that: the two side edge plates are in mirror symmetry and are bent inwards at right angles to form clamping rings, the clamping rings are used for positioning the tire in a double-layer rim, and the end parts of the two clamping rings are in mirror symmetry and are bent inwards to form a hook ring.

Moreover, the hook ring and the clamping ring are bent at a right angle or at an acute angle.

And the outer edge part of the hook ring is made into a circular arc shape.

The utility model has the advantages and positive effects that:

1. this double-deck rim all extends inwards at two rand tip of mirror symmetry and has made one and collude the circle, should collude the circle and can block into and fix a position in the tire, and then fix the tire, solved because of the shrink elongation of solid rubber tire causes the separation problem of rim and tire.

2. The double-layer rim is novel in structure, scientific in design, ingenious in conception, free of changing the existing installation process, free of excessively increasing the production cost and high in practicability.

Drawings

FIG. 1 is a front elevational view of the construction of a rim tire according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is an enlarged view of the part B of FIG. 3;

FIG. 5 is a schematic view of the structure of the single rim of FIG. 3;

FIG. 6 is an enlarged view of the structure of the portion C of FIG. 5;

fig. 7 is a schematic structural view of the hook ring of fig. 6 bent at an acute angle.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings. It should be noted that the present embodiment is illustrative, not restrictive, and the scope of the utility model should not be limited thereby.

A special tire-drop-preventing double-layer rim for a solid rubber tire of a bicycle is characterized in that a tire 1 is concentrically sleeved on a rim 2, and the rim is made of aluminum alloy. See fig. 1, 2.

The double-layer rim is of an outward U-shaped structure, the cross section of the double-layer rim is composed of an outer top ring 7, an inner top ring 6 and two side edge plates 4 which are in mirror symmetry with two sides, the two side edge plates are in mirror symmetry with inward right-angle bending to form clamping rings 3, the clamping rings are used for positioning a tire in the double-layer rim, and process through holes 5 are formed between the outer top ring and the inner top ring and between the outer top ring and the two side edge plates. See fig. 3, 4.

A hook ring 8 extends inwards in mirror symmetry at the end parts of the two clamping rings, and the hook ring and the clamping rings can be bent at a right angle (namely, the hook ring and the rim are in the same axial direction), as shown in fig. 6; or an acute angle hook ring 9 formed by acute angle bending (i.e. forming an acute angle with the radial direction of the rim) can be adopted, as shown in fig. 7, the length of the retainer ring can be correspondingly reduced by the acute angle bending; the selection of the right-angle bending and the acute-angle bending is determined according to the material and the structure of the tire. The outer edge of the hook ring is made into a circular arc shape so as to avoid the damage to the rubber.

The clamping ring and the hook ring manufactured by the utility model can stably and effectively position and fix the tire in the rim, and the utility model aim of preventing the tire from falling off is fully realized.

Claims

1. The utility model provides a special anticreep double-deck rim of child of bicycle solid rubber tire, double-deck rim is outside U type structure, and its cross-section comprises outer top ring, inlayer top ring and both sides mirror symmetry's both sides flange plate, its characterized in that: the two side edge plates are in mirror symmetry and are bent inwards at right angles to form clamping rings, the clamping rings are used for positioning the tire in a double-layer rim, and the end parts of the two clamping rings are in mirror symmetry and are bent inwards to form a hook ring.

2. The special tire release prevention double-layer rim for the solid rubber tire of the bicycle according to claim 1, characterized in that: the hook ring and the clamping ring are bent at a right angle or at an acute angle.

3. The run-flat double rim for the solid rubber tire of the bicycle according to claim 1 or 2, wherein: the outer edge part of the hook ring is made into an arc shape.