Vertical double-cavity rubber tire

Abstract

The utility model belongs to the technical field of rubber tires, and particularly relates to a vertical double-cavity rubber tire, which comprises a tire body, anti-skid grains and an embedding groove, the anti-skid grains are arranged on the peripheral end face of the tire body, and the embedding groove is arranged in the middle of the inner side of the tire body. By arranging the flexible extension frame, the segmented supporting frame, the tail end sealing piece, the air guide groove and the self-adaptive separation strip, when the structure is used, a hub is installed at the position of the embedding groove, so that a sealed cavity is formed in the tire body. And the internal space of the tire body is divided into two parts of cavities through the self-adaptive separation strip. When the tire body is pressed to rotate, the cavities on the two sides are pressed respectively, and when the pressure difference of the cavities on the two sides exceeds 0.3 bar, air flow is automatically conducted through the air guide grooves. When the tire body bears large pressure, the segmented supporting frames located on the inner side evenly disperse part of the pressure, and the self-adaptive separation belts are designed to be of a folded structure, so that the sealing performance is guaranteed, and meanwhile local controllable deformation and efficient energy dissipation are achieved when the self-adaptive separation belts are pressed.

Description

Technical Field

[0001] This utility model relates to the field of rubber tire technology, specifically a vertical double-cavity rubber tire. Background Technology

[0002] The vertical dual-chamber rubber tire is an innovative solution addressing the pain points of traditional tires, such as insufficient safety and low energy efficiency. Its development stems from the higher performance requirements of modern transportation and specialized operations, particularly in terms of puncture resistance, damage resistance, and adaptability to complex road conditions. Through its independent dual-chamber design, this tire can be flexibly filled with gas, liquid, or rubber, and is widely used in automotive, aerospace, construction machinery, and agricultural equipment. During high-speed driving or heavy-duty operations, it reduces the risk of tire blowouts and extends service life through pressure distribution mechanisms. Its core significance lies in overcoming the functional limitations of single-chamber tires, achieving a balance between safety and energy efficiency through multi-chamber collaborative technology. For example, it maintains basic driving capability even when the tire is partially damaged, while simultaneously reducing energy consumption by optimizing rolling resistance, providing a new path for improving the reliability and green development of transportation equipment.

[0003] The existing technology has the following shortcomings: The "vertical double-cavity rubber tire" disclosed in the prior art with the publication number CN201235711Y "includes a vertical double-cavity rubber tire, characterized in that there are two vertical independent cavity structures inside the same rubber tire, and there is a partition between the two cavities. According to the needs of different carriers, compressed gas of different pressures and compressed gas of different properties, special liquid or soft rubber body and rubber tire with elastic solid material can be injected into the two cavities of the same rubber tire respectively.

[0004] The aforementioned structure divides the tire's interior into two cavities using a dividing strip, allowing the other cavity to remain functional even if one cavity is damaged. However, this dividing strip consists of a taut, straight structure, and the tire body lacks a supportive pressure-dispersing structure. When the tire body is impacted, the taut dividing strip, fixed at both ends, is stretched, causing stress concentration and making it prone to breakage. Over time, this disrupts the pressure balance within the cavities. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a vertical double-cavity rubber tire, which solves the problem that the existing separator strip lacks structural cushioning and is prone to fatigue fracture under pressure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vertical dual-cavity rubber tire, comprising a tire body, anti-skid treads, and a fitting groove, wherein the anti-skid treads are formed on the outer end face of the tire body, and the fitting groove is formed on the inner middle part of the tire body.

[0007] A flexible extension frame is provided on the inner side of the tire body, and an adaptive separation strip is provided between the flexible extension frame and the tire body.

[0008] As a preferred embodiment of this utility model, the flexible extension frame further includes a segmented support frame and an end sealing plate. The segmented support frame is fixedly connected to the periphery of the flexible extension frame, and the end sealing plate is fixedly connected to the end position of the flexible extension frame.

[0009] As a preferred technical solution of this utility model, the flexible extension frame is composed of two sets of semi-circular ring structures, with one side of each ring broken off from the middle to form two parts, and the adaptive dividing strip is set at the end of the break.

[0010] As a preferred technical solution of this utility model, the adaptive partition strip further includes a polyurethane coating and air guide grooves. The polyurethane coating is applied to the outside of the adaptive partition strip, and the air guide grooves are opened between the side end of the adaptive partition strip and the flexible extension frame, with a lateral spacing of 5mm.

[0011] As a preferred embodiment of this utility model, the sidewall of the air guide groove is provided with a closed colloidal material, which is pushed open when the air pressure difference between the two cavities is greater than 0.3 bar.

[0012] As a preferred technical solution of this utility model, the adaptive separator strip itself is in the form of multiple sets of wavy folds stacked together, with the wavy wavelength set to 8-12mm and the amplitude to 3-5mm. It is dynamically adjusted according to the tire size, with large engineering tires using a large wavelength and passenger car tires using a small wavelength.

[0013] Compared with the prior art, this utility model provides a vertical dual-cavity rubber tire, which has the following beneficial effects:

[0014] A vertical dual-cavity rubber tire, by incorporating a flexible extension frame, segmented support frame, end sealing plate, air guide groove, and adaptive separator, creates a sealed cavity inside the tire carcass when the hub is mounted in the fitting groove. The adaptive separator divides the internal space of the tire carcass into two cavities. When the tire carcass rotates under pressure, both cavities are subjected to pressure. When the pressure difference between the two cavities exceeds 0.3 bar, the air guide groove automatically vents airflow. When the tire carcass bears greater pressure, the segmented support frame on the inner side evenly distributes some of the pressure, while the adaptive separator, through its own pleated structure design and the gradient configuration of the wavelength and amplitude of the corrugated structure (e.g., 10 mm wavelength in the crown area and 15 mm in the sidewall area), allows different areas to produce differential deformation as needed: the short-wavelength area prioritizes support force, while the long-wavelength area releases lateral deformation space.

[0015] Through the above settings and processes, the tire of this solution, compared with the existing dual-cavity rubber tires, replaces the traditional tight structure with a pleated design. While ensuring sealing, it achieves localized controllable deformation and efficient energy dissipation under pressure. Furthermore, by cooperating with the segmented support frame, it significantly improves the pressure stability of the tire body and prevents the cavity balance from being disrupted due to pressure and tension damage to the separator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal cross-section of the tire body of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the flexible extension frame of this utility model;

[0019] Figure 4 This is a schematic diagram showing the installation position of the adaptive separator and the location of the air guide groove in this utility model.

[0020] In the diagram: 1. Tire body; 2. Anti-slip pattern; 3. Fitting groove; 4. Flexible extension frame; 401. Segmented support frame; 402. End sealing plate; 5. Adaptive separator; 501. Polyurethane coating; 502. Air guide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this embodiment: a vertical dual-cavity rubber tire includes a tire body 1, anti-skid treads 2 and a fitting groove 3. The anti-skid treads 2 are formed on the outer end face of the tire body 1, and the fitting groove 3 is formed on the inner middle part of the tire body 1.

[0023] A flexible extension frame 4 is provided on the inner side of the tire body 1, and an adaptive separation strip 5 is provided between the flexible extension frame 4 and the tire body 1.

[0024] In this embodiment, the flexible extension frame 4 also includes a segmented support frame 401 and an end sealing plate 402. The segmented support frame 401 is fixedly connected to the periphery of the flexible extension frame 4, and the end sealing plate 402 is fixedly connected to the end position of the flexible extension frame 4. The flexible extension frame 4 is composed of two sets of semi-circular ring structures, with one side of the opposite side broken into two parts from the middle. The adaptive separator 5 is set at the end break position.

[0025] Specifically, such as Figure 2 and Figure 3 As shown, the segmented support frame 401 is made of carbon fiber composite material with a tensile strength of 1.5 GPa and a length of 50 mm for each segment. It is bonded to the flexible extension frame 4 through a vulcanization process. The end sealing sheet 402 is made of fluororubber with a temperature resistance of -40℃ to 200℃ and a thickness of 1.2 mm. It is sealed to the edge of the fitting groove 3 by laser welding, with a leakage rate of <0.01 mL / min.

[0026] In this embodiment, the adaptive partition 5 also includes a polyurethane coating 501 and an air guide groove 502. The polyurethane coating 501 is applied to the outside of the adaptive partition 5, and the air guide groove 502 is opened between the side end of the adaptive partition 5 and the flexible extension frame 4, with a lateral spacing of 5mm. The side wall of the air guide groove 502 is provided with a closed colloidal material. When the air pressure difference between the two cavities is greater than 0.3 bar, the colloidal material is pushed open.

[0027] Specifically, such as Figure 1 and Figure 4 As shown, the inner layer of the flexible extension frame 4 is made of composite aramid fiber with a basis weight of 180g / m², and the outer layer is coated with polyurethane with a thickness of 0.3mm.

[0028] In this embodiment, the adaptive separator 5 itself is in a state of multiple sets of wavy folds stacked together. The wavy wavelength is set to 8mm and the amplitude is 4mm. It is dynamically adjusted according to the tire size. Large engineering tires use a large wavelength and passenger car tires use a small wavelength. The adaptive separator 5 uses a high-elasticity natural rubber composite layer, specifically 60% natural rubber content + 40% butadiene rubber. The Shore hardness is set to 65 HA, and it is necessary to ensure that the compression rebound rate is >92%.

[0029] The working principle and usage process of this utility model are as follows: When this structure is used, a sealed cavity is formed inside the tire body 1 by installing the wheel hub in the fitting groove 3. The internal space of the tire body 1 is divided into two cavities by the adaptive partition 5. When the tire body 1 is rotated under pressure, the two cavities are subjected to pressure respectively. When the pressure difference between the two cavities exceeds 0.3 bar, the air guide groove 502 automatically guides the airflow. When the tire body 1 is subjected to greater pressure, the segmented support frame 401 located on the inner side evenly distributes part of the pressure, while the adaptive partition 5, through its own pleated structure design and the wavelength and amplitude gradient configuration of the corrugated structure (e.g., 10 mm wavelength in the crown area and 15 mm in the sidewall area), allows different areas to produce different deformations as needed: the short wavelength area provides priority support, and the long wavelength area releases lateral deformation space, thereby improving the buffering capacity.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical dual-cavity rubber tire, comprising a tire body (1), anti-skid treads (2), and fitting grooves (3), wherein the anti-skid treads (2) are formed on the outer end face of the tire body (1), and the fitting grooves (3) are formed on the inner middle part of the tire body (1), characterized in that: A flexible extension frame (4) is provided on the inner side of the tire body (1), and an adaptive separation strip (5) is provided between the flexible extension frame (4) and the tire body (1).

2. A vertical dual chamber rubber tire as claimed in claim 1, wherein: The flexible extension frame (4) also includes a segmented support frame (401) and an end sealing plate (402). The segmented support frame (401) is fixedly connected to the periphery of the flexible extension frame (4), and the end sealing plate (402) is fixedly connected to the end position of the flexible extension frame (4).

3. A vertical dual chamber rubber tire as claimed in claim 1, wherein: The flexible extension frame (4) consists of two sets of semi-circular ring structures, with one side of the frame being broken off from the middle into two parts, and the adaptive dividing strip (5) is located at the end of the break.

4. A vertical dual chamber rubber tire as claimed in claim 1, wherein: The adaptive partition (5) also includes a polyurethane coating (501) and an air guide groove (502). The polyurethane coating (501) is applied to the outside of the adaptive partition (5), and the air guide groove (502) is opened between the side end of the adaptive partition (5) and the flexible extension frame (4), with a lateral spacing of 5 mm.

5. A vertical dual chamber rubber tire as claimed in claim 4, wherein: The sidewall of the air guide groove (502) is provided with a closed colloidal material. When the pressure difference between the two chambers is greater than 0.3 bar, the colloidal material is pushed open.

6. A vertical dual chamber rubber tire as claimed in claim 1, wherein: The adaptive separator (5) itself is in a state of multiple sets of wavy folds stacked together. The wavy wavelength is set to 8-12mm and the amplitude is 3-5mm. It is dynamically adjusted according to the tire size. Large engineering tires use large wavelengths and passenger car tires use small wavelengths.

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