A leak-proof tire

Abstract

This utility model discloses a leak-proof tire, belonging to the field of automotive tire technology. It includes a rim, a first valve stem, a folding inner tube, a second valve stem, and an inner sealing tape. The tire body is fitted onto the outside of the rim. The first valve stem is installed on the inner wall of the rim. The folding inner tube is positioned on the inner ring of the rim. The second valve stem is also installed on the inner wall of the rim and is connected to the folding inner tube. The inner sealing tape is positioned on the outside of the folding inner tube and is used to adhere the folding inner tube to the inner ring of the rim. This invention solves the problem in existing technologies where a leaked tire loses its internal support, causing the vehicle to become inoperable. This utility model provides temporary support for the tire, protects the integrity of the tire body and rim, improves economy, and simplifies emergency handling procedures.

Description

Technical Field

[0001] This utility model relates to the field of automobile tire technology, specifically to a tire that prevents air leakage. Background Technology

[0002] Car tires are one of the most important components of a vehicle. They come into direct contact with the road surface and, together with the vehicle's suspension, cushion the impacts experienced during driving, ensuring good ride comfort and smoothness; guaranteeing good traction between the wheels and the road surface, improving the vehicle's traction, braking, and handling; and bearing the weight of the vehicle. Currently, radial tires are widely used, with their carcass cords arranged in a radial direction. This design makes the tire sidewalls flexible and the tread rigid, resulting in good cushioning performance, strong adhesion, and a long service life. Radial tires have become the mainstream type of car tire today.

[0003] However, existing tires, if punctured by a sharp object while driving, will leak air. Once leaking air, the tire loses its internal support and cannot continue driving normally. Forcing the vehicle to continue driving will not only severely damage the tire and rim but also pose a safety hazard. This problem is particularly prominent in electric vehicles. Due to space and weight limitations, most electric vehicles no longer carry a spare tire, instead featuring an onboard air pump and tire sealant as standard emergency solutions. However, tire sealant has limitations in repair effectiveness, a limited shelf life, and complex usage procedures, leaving users facing the predicament of being unable to drive and facing difficulties in getting help when encountering a tire blowout or severe leak.

[0004] Therefore, how to provide a leak-proof tire that overcomes the shortcomings of existing technologies is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] Therefore, this utility model provides a leak-proof tire to solve the problem in the prior art where the vehicle cannot continue to drive because the internal support of the tire is lost after a leak.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a leak-proof tire, comprising: The wheel rim is fitted with the tire body on the outside; The first valve stem is installed on the inner wall of the rim; A folding inner tube is provided on the inner ring of the rim; The second valve is installed on the inner wall of the rim and is connected to the folding inner tube. An inner sealing tape is disposed on the outside of the folding inner tube, and the inner sealing tape is used to attach the folding inner tube to the inner ring of the rim.

[0007] Furthermore, the foldable inner tube includes: The center part is located on the inner ring of the rim; A first folding part is provided on one side of the central part, and the first folding part folds towards the central part and covers the outside of the central part; The second fold is provided on the other side of the central part, and the second fold folds toward the central part and covers the outside of the first fold; An easily tearable structure is disposed between the first fold and the second fold.

[0008] Furthermore, the easily tearable structure is a perforated line.

[0009] Furthermore, the tearable structure is adhesive tape.

[0010] Furthermore, the bottom of the central part is provided with an adhesive layer, and the central part is adhered to the inner ring of the rim by the adhesive layer.

[0011] Furthermore, the inner diameter of the inflated foldable inner tube is equal to the diameter of the inner ring of the rim, and the outer diameter of the inflated foldable inner tube is equal to 1.1 times the diameter of the tire body.

[0012] This utility model has the following advantages: This invention adds a foldable inner tube to the tire body, which provides temporary support when the tire leaks air, avoiding secondary damage such as tire body damage and rim deformation caused by driving with low air pressure, protecting the integrity of the wheel assembly and improving economy.

[0013] By incorporating a foldable inner tube and an inner sealing tape, the foldable inner tube can rotate with the wheel within the rim without affecting the wheel's dynamic balance. After a leak, it can be inflated simply by using the second valve to restore drivability, without the need to disassemble the tire or use tire sealant, greatly simplifying the emergency handling process. Attached Figure Description

[0014] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 A cross-sectional view of the tire in use for leak prevention provided by this utility model; Figure 2 A cross-sectional view of the tire storage state for leak protection provided in the first embodiment of this utility model; Figure 3 This is a cross-sectional view of the foldable inner tube provided in the first embodiment of the present utility model; Figure 4 Provided for the first embodiment of this utility model Figure 3 Enlarged view of the A-structure; Figure 5 A cross-sectional view of the tire storage state for leak protection provided in the second embodiment of this utility model; Figure 6 This is a cross-sectional view of the foldable inner tube provided in the second embodiment of the present invention; Figure 7 Provided for the second embodiment of this utility model Figure 6 Enlarged view of the B-structure.

[0017] In the diagram: 1. Rim; 2. Tire body; 3. First valve stem; 4. Folding inner tube; 41. Center section; 411. Adhesive layer; 42. First fold; 43. Second fold; 44. Tear-resistant structure; 5. Second valve stem; 6. Inner sealing tape. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Please refer to Figures 1-7 The present invention discloses a leak-proof tire, which consists of five parts, as follows: Figure 1 , Figure 2 , Figure 5As shown, the device includes a rim 1, a first valve stem 3, a folding inner tube 4, a second valve stem 5, and an inner sealing tape 6. The rim 1 is fitted with a tire body 2. The first valve stem 3 is installed on the inner wall of the rim 1. The folding inner tube 4 is installed on the inner ring of the rim 1. The second valve stem 5 is installed on the inner wall of the rim 1 and is connected to the folding inner tube 4. The inner sealing tape 6 is installed on the outside of the folding inner tube 4 and is used to attach the folding inner tube 4 to the inner ring of the rim 1.

[0020] The function of the second valve 5 is to inflate the folding inner tube 4. To accommodate the second valve 5, two inflation holes should be provided on the inner wall of the rim 1. The two inflation holes are used to install the first valve 3 and the second valve 5, respectively. The folding inner tube 4 is fitted onto the rim 1, and the second valve 5 extends from the middle of the rim 1, with its circumferential position opposite to that of the first valve 3.

[0021] The inner sealing tape 6 serves to prevent the folding inner tube 4 from swinging and affecting dynamic balance during driving. During installation, the air in the folding inner tube 4 is first removed, causing it to fold into a sheet shape. Then, the inner sealing tape 6 is used to secure it to the rim 1. After pressing, the folding inner tube 4 remains stationary and does not affect the original structure and dynamic balance of the tire body 2. When inflating the folding inner tube 4, the higher pressure causes it to break through the inner sealing tape 6 and unfold, allowing the folding inner tube 4 to form a... Figure 1 The structure of the inner sealing tape 6 can be the same as the inner ring of the rim 1, or just larger than the width of the foldable inner tube 4 when stored, as long as the foldable inner tube 4 can be securely fixed to the inner ring of the rim 1.

[0022] This application allows the driver to inflate the tire body 2 with a vehicle-mounted air pump via the second valve 5 in the center of the rim 1 after a leak. After inflation, the foldable inner tube 4 ensures airtightness, while the tire body 2 continues to bear weight and torque. This allows the vehicle to continue driving to a repair location with performance close to that of a properly inflated tire body 2. It is simple and quick, requiring no disassembly of the tire body 2 or the use of tire sealant, greatly simplifying the emergency response process and providing better protection for vehicle safety.

[0023] Preferably, the inner diameter of the inflated folding inner tube 4 is equal to the diameter of the inner ring of the rim 1, and the outer diameter of the inflated folding inner tube 4 is equal to 1.1 times the diameter of the tire body 2. The outer diameter of the folding inner tube 4 is slightly larger than the diameter of the tire body 2, which can provide better support for the tire body 2.

[0024] By adding a foldable inner tube 4 inside the tire body 2, temporary support can be provided by the foldable inner tube 4 after the tire body 2 leaks air, avoiding secondary damage such as damage to the tire body 2 and deformation of the rim 1 caused by driving with low air pressure, protecting the integrity of the wheel assembly and improving economy.

[0025] By setting up a foldable inner tube 4 and an inner sealing tape 6, the foldable inner tube 4 can rotate with the wheel within the rim 1 without affecting the wheel's dynamic balance. After a leak, it can be restored to driving ability simply by inflating it through the second valve 5, without having to remove the tire body 2 or use tire sealant, which greatly simplifies the emergency handling process.

[0026] like Figure 3 , Figure 6 , Figure 4 , Figure 7 As shown, the folding inner tube 4 includes a central portion 41, a first folding portion 42, a second folding portion 43, and an easy-tear structure 44. The central portion 41 is disposed on the inner ring of the rim 1. The first folding portion 42 is disposed on one side of the central portion 41. The first folding portion 42 folds towards the central portion 41 and covers the outside of the central portion 41. The second folding portion 43 is disposed on the other side of the central portion 41. The second folding portion 43 folds towards the central portion 41 and covers the outside of the first folding portion 42. The easy-tear structure 44 is disposed between the first folding portion 42 and the second folding portion 43.

[0027] in, Figure 3 , Figure 4 This is the first embodiment of the present application. Figure 6 , Figure 7 This is the second embodiment of the present application; the difference between the first and second embodiments lies only in the easily tearable structure 44.

[0028] It is worth noting that, since the cross-sectional shape of the folding inner tube 4 is circular after inflation, the inner diameters at both ends of the folding inner tube 4 are actually smaller than the inner diameter of the central part 41 after the air is removed. When the first folding part 42 and the second folding part 43 fold towards the central part 41, because their inner diameters are smaller than the inner diameters of the central part 41, the first folding part 42 will have a certain wrapping effect on the central part 41. At the same time, after the first folding part 42 is folded, the inner diameter of the central part 41 is further increased, which further strengthens the wrapping effect of the second folding part 43 on the central part 41 and the first folding part 42. This structural design makes the folding inner tube 4 tightly wrapped together, further reducing the impact on the dynamic balance of the wheel.

[0029] In the first embodiment, the tear-resistant structure 44 is a perforated line. In this embodiment, a tear-resistant area with a perforated line structure can be formed between the first fold 42 and the second fold 43 through a vulcanization process. When the foldable inner tube 4 is inflated, the pressure is high enough to break through the tear-resistant structure 44, causing the connection between the first fold 42 and the second fold 43 to break, and the foldable inner tube 4 to be fully filled inside the tire body 2. The advantage of the first embodiment is that a stable tear-resistant structure 44 can be formed through machining, making the connection between the first fold 42 and the second fold 43 more stable when not inflated, thus strengthening the overall dynamic balance of the wheel.

[0030] In the second embodiment, the tear-resistant structure 44 is made of adhesive tape. When inflating the folding inner tube 4, the pressure is high enough to break through the tear-resistant structure 44, causing the first fold 42 and the second fold 43 to disconnect. The advantage of the second embodiment is that it can be reused. After repairing the tire body 2, the air in the folding inner tube 4 is removed, and the folding inner tube 4 returns to its sheet shape. The first fold 42 and the second fold 43 on both sides are folded towards the center, making the folding inner tube 4 appear as a narrow strip. After the first fold 42 and the second fold 43 are pasted with adhesive tape, the inner sealing tape 6 is used to paste the folding inner tube 4 onto the inner ring of the rim 1.

[0031] like Figure 3 , Figure 6 As shown, the bottom of the central part 41 is provided with an adhesive layer 411, and the central part 41 is adhered to the inner ring of the rim 1 by the adhesive layer 411. By providing the adhesive layer 411, the folding inner tube 4 can be more securely fixed in the rim 1.

[0032] The usage process of this utility model embodiment is as follows: After the air leaks: First, remove the foreign object that punctured the tire. Second, inflate the folding inner tube 4 through the second valve 5. Due to the high pressure, the folding inner tube 4 can break through the inner sealing tape 6 and fill the tire body 2. Third, drive to the repair location, deflate the folding inner tube 4, and then repair the tire body 2 according to the normal procedure. Finally, after the tire body 2 is repaired, fold the deflated folding inner tube 4 and fix it with the inner sealing tape 6, and reinstall it to ensure that it can be used again in the future.

[0033] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A run-flat tire characterized by, include: The rim (1) is fitted with a tire body (2) on the outside. The first valve stem (3) is installed on the inner wall of the rim (1); A folding inner tube (4) is provided on the inner ring of the rim (1); The second valve (5) is installed on the inner wall of the rim (1) and is connected to the folding inner tube (4); An inner sealing tape (6) is provided on the outside of the folding inner tube (4) for attaching the folding inner tube (4) to the inner ring of the rim (1).

2. The run-flat tire of claim 1, wherein The foldable inner tube (4) includes: The center part (41) is provided on the inner ring of the rim (1); A first folding part (42) is provided on one side of the central part (41), and the first folding part (42) folds toward the central part (41) and covers the outside of the central part (41); The second fold (43) is provided on the other side of the central part (41), and the second fold (43) folds toward the central part (41) and covers the outside of the first fold (42); A tearable structure (44) is disposed between the first fold (42) and the second fold (43).

3. The run-flat tire of claim 2, wherein The tearable structure (44) is a perforated line.

4. The run-flat tire of claim 2, wherein The tearable structure (44) is an adhesive tape.

5. The run-flat tire of claim 2, wherein The bottom of the center part (41) is provided with an adhesive layer (411), and the center part (41) is attached to the inner ring of the rim (1) by the adhesive layer (411).

6. The run-flat tire of claim 1, wherein The inner diameter of the foldable inner tube (4) after inflation is equal to the diameter of the inner ring of the rim (1), and the outer diameter of the foldable inner tube (4) after inflation is equal to 1.1 times the diameter of the tire body (2).

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