Tire flap for preventing rubber at root of inflating valve from being reversely folded and broken

Abstract

The utility model relates to the field of vehicle tires, and discloses a tire flap for preventing rubber at the root of an inflating valve from being reversely folded and broken, which comprises a tire flap and a protective sheet, an inflating valve hole is arranged on the tire flap, one side of the inflating valve hole far away from the protective sheet is in a horn mouth shape, and one side of the inflating valve hole close to the protective sheet is provided with a boss. A protective sleeve arranged on the outer side of the boss in a sleeving mode is fixedly connected to one side of the protective piece, the section of the protective sleeve is two arc-shaped faces, and the width of the two ends of the protective sleeve is larger than that of the middle of the protective sleeve. The side, away from the protection sheet, of the inflating valve hole is in the horn mouth shape, the boss is arranged on the side, close to the protection sheet, of the inflating valve hole, and the protection sleeve is installed at the boss in the inflating valve hole, so that the situation that an inner tube inflating valve is clamped at the position of the inflating valve hole in a tire flap when the tire is assembled and inflated can be prevented; and rubber at the root of the inner tube inflating valve is effectively prevented from being reversely folded, broken and leaked.

Description

Technical Field

[0001] The utility model relates to the field of vehicle tires, in particular to a tire flap for preventing the rubber at the root of the valve stem from being folded and broken backwards. Background Art

[0002] A tire flap, also known as a liner or bead wire, is an annular tape installed between the inner tube and the rim. Its main function is to protect the seating surface of the inner tube from being worn by the rim. The middle part of the tire flap is relatively thick, while the two edges gradually become thinner from the inside out. There is usually a center line on the outer surface, which is used as an alignment line during installation. There is also a hole on the center line for the valve stem of the inner tube to pass through.

[0003] When the existing inner tube tire flap is assembled and inflated, if the valve stem of the inner tube is not installed correctly, it will get stuck at the edge of the valve stem hole of the flap and not fully enter the valve stem hole of the flap. During inflation, it will cause the rubber at the root of the valve stem to be folded and broken backwards, resulting in air leakage through the hole. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that when the existing tire flap is inflated with the valve stem of the inner tube not installed correctly, it will cause the rubber at the root of the valve stem to be folded and broken backwards, resulting in air leakage through the hole.

[0005] To solve the above problems, the technical solution of the utility model is: a tire flap for preventing the rubber at the root of the valve stem from being folded and broken backwards, including a tire flap and a protection piece. A valve stem hole is opened on the tire flap. The side of the valve stem hole away from the protection piece is in a flared shape, and a boss is provided on the side close to the protection piece. A protection sleeve sleeved outside the boss is fixedly connected to one side of the protection piece. The cross-section of the protection sleeve is two arc surfaces, and the width at both ends of the protection sleeve is greater than the width in the middle.

[0006] Further, the thickness of the tire flap is 12 mm, the thickness of the boss is 6 mm, and the diameter of the side of the valve stem hole close to the protection piece is 12 mm.

[0007] Further, the diameter of the end of the flare away from the protection piece is 32 mm, and the diameter of the other end is 15 mm.

[0008] Further, the protection piece and the protection sleeve are integrally formed.

[0009] Further, the inner diameter in the middle of the protection sleeve is 10 mm.

[0010] The advantages of the present utility model compared with the existing technology are as follows: on the side of the valve hole away from the protective piece, it is in a flared shape, and on the side close to the protective piece, there is a boss. The protective sleeve is installed at the position of the boss inside the valve hole, so as to prevent the inner tube valve from being stuck at the valve hole position of the tire flap when the tire is assembled and inflated, effectively preventing the rubber at the root of the inner tube valve from being folded and broken to cause air leakage. Brief Description of the Drawings

[0011] Figure 1 It is a structural diagram of the present utility model.

[0012] As shown in the figure: 1. Tire flap; 2. Protective piece; 3. Valve hole; 4. Protective sleeve. Detailed Embodiment

[0013] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0014] As Figure 1 shown, a tire flap for preventing the rubber at the root of the valve from being folded and broken includes a tire flap 1 and a protective piece 2. A valve hole 3 is provided on the tire flap 1. The side of the valve hole 3 away from the protective piece 2 is in a flared shape, and on the side close to the protective piece 2, there is a boss. The thickness of the tire flap 1 is 12 mm, the thickness of the boss is 6 mm, the diameter of the side of the valve hole 3 close to the protective piece 2 is 12 mm, the diameter of the end of the flared part away from the protective piece 2 is 32 mm, and the diameter of the other end is 15 mm.

[0015] On one side of the protective piece 2, there is a protective sleeve 4 sleeved outside the boss. The protective piece 2 and the protective sleeve 4 are integrally formed. The cross-section of the protective sleeve 4 is two arc-shaped surfaces, and the width at both ends of the protective sleeve 4 is greater than the width in the middle. The inner diameter in the middle of the protective sleeve 4 is 10 mm.

[0016] In specific use, one end of the valve hole 3 is in a flared shape, which can prevent the edge of the valve hole 3 from jamming the inner tube valve during inflation; on one side of the protective piece 2, there is a protective sleeve 4, and the protective sleeve 4 is installed at the position of the boss inside the valve hole 3, which can prevent the edge of the protective sleeve 4 from jamming the inner tube valve during inflation; the protective sleeve 4 is smaller than the traditional protective sleeve, which is convenient for installing the inner tube valve and ensures that the inner tube valve is more stable in the central position to prevent jamming the inner tube valve; thus, it can prevent the inner tube valve from being stuck at the valve hole 3 position on the tire flap 1 when the tire is assembled and inflated, effectively preventing the rubber at the root of the inner tube valve from being folded and broken to cause air leakage.

[0017] The unexposed parts in this utility model are all prior arts, and their specific structures and working principles will not be elaborated herein.

[0018] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0019] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

[0020] The above has described the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the purpose of the creation of the present utility model, design similar structural manners and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A tire flap for preventing the rubber at the root of the valve stem from being folded backward and cracked, comprising a tire flap (1) and a protective sheet (2), wherein a valve stem hole (3) is formed in the tire flap (1), and it is characterized in that: The side of the valve hole (3) away from the protective piece (2) is flared, and a boss is provided on the side close to the protective piece (2). A protective sleeve (4) sleeved outside the boss is fixedly connected to one side of the protective piece (2). The cross-section of the protective sleeve (4) is two arc-shaped surfaces, and the width at both ends of the protective sleeve (4) is greater than the width in the middle.

2. A tire flap for preventing the rubber at the root of the valve stem from being folded backward and cracked, characterized in that: The thickness of the tire flap (1) is 12 mm, the thickness of the boss is 6 mm, and the diameter of the side of the valve hole (3) close to the protective piece (2) is 12 mm.

3. A tire flap for preventing the rubber at the root of the valve stem from being folded backward and cracked, characterized in that: The diameter of one end of the flare away from the protective piece (2) is 32 mm, and the diameter of the other end is 15 mm.

4. A tire flap for preventing the rubber at the root of the valve stem from folding backward and cracking, characterized in that: The protective piece (2) and the protective sleeve (4) are integrally formed.

5. A tire flap for preventing the rubber at the root of the valve stem from folding backward and cracking, characterized in that: The inner diameter in the middle of the protective sleeve (4) is 10 mm.

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