Two-wheeled vehicle and self-inflating tire therefor

Abstract

The utility model relates to a two-wheeled vehicle and self-inflating tire thereof, including wheel rim, the solid bin, liquid bin are preinstalled on the wheel rim, one-way controllable intercommunication between solid bin, liquid bin, tire, the gas of solid bin, liquid bin in material reaction generation is inputted in tire, the utility model solves the cumbersome problem that the driver needs to check tire pressure regularly in traditional tire inflation mode, and no longer needs to use external inflation equipment to inflate, changes the gas generated by the chemical reaction of the solid bin and liquid bin on the wheel rim to be used as the gas for pressurizing tire, does not need manual intervention, and the operation is more simple.

Description

Technical Field

[0001] This utility model relates to the field of tire pressure control technology, and in particular to a two-wheeled vehicle and its self-inflating tire. Background Technology

[0002] With the widespread use of electric vehicles and the complex and varied usage scenarios, the tires of traditional electric vehicles are prone to pressure drop due to frequent heavy loads and complex road conditions, which affects range, operation and safety.

[0003] Maintaining proper tire pressure is crucial for vehicle fuel economy, tire life, and driving safety. Insufficient tire pressure leads to accelerated tire wear, increased rolling resistance, and increased energy consumption; excessive tire pressure reduces tire grip, affecting vehicle handling and increasing the risk of tire blowout. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a two-wheeled vehicle and its self-inflating tire, which can monitor tire pressure at any time, and promptly generate gas through a chemical reaction to replenish the tire pressure when the tire pressure is too low, and stop replenishing the tire after the tire pressure rises to the expected level.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A self-inflating tire includes a rim, on which a solid chamber and a liquid chamber are pre-installed. The solid chamber, the liquid chamber, and the tire are connected in a one-way controllable manner, and the gas generated by the reaction of materials in the solid chamber and the liquid chamber is input into the tire.

[0007] As a further improvement to the above technical solution:

[0008] The solid and liquid chambers are connected by a fluid passage, which is equipped with a miniature voltage pump and a one-way valve.

[0009] The liquid compartment is located on the inflow side of the one-way valve, and the solid compartment is located on the outflow side of the one-way valve.

[0010] The miniature voltage pump is connected to a control unit, which includes:

[0011] Tire pressure sensors are installed inside the tire and connected to the tire's airtight layer.

[0012] The microcontroller, located on the circuit board of the tire pressure sensor, receives signals from the tire pressure sensor.

[0013] The battery, integrated inside the tire pressure sensor housing, provides power.

[0014] The microcontroller's preset tire pressure threshold is: standard tire pressure ±10%.

[0015] A gas passage connects the solid cargo compartment and the tire, and the following are installed sequentially along the gas passage:

[0016] Filter membranes are used to remove impurities generated during the reaction.

[0017] One-way valve, located on the side of the filter membrane in the output direction.

[0018] The pressure relief valve is located between the check valve and the tire.

[0019] The physical opening threshold of the pressure relief valve is standard tire pressure +25%.

[0020] The solid chamber contains pre-compressed porous sodium bicarbonate blocks; the liquid chamber contains a 30%-50% citric acid aqueous solution.

[0021] The solid and liquid compartments are connected to the wheel rim via snap-fit ​​connections.

[0022] A two-wheeled vehicle equipped with the aforementioned self-inflating tires.

[0023] The beneficial effects of this utility model are as follows:

[0024] This invention solves the cumbersome problem of drivers having to regularly check tire pressure in traditional tire inflation methods. It also eliminates the need for external inflation equipment, instead using gas generated by the chemical reaction between the solid and liquid chambers on the rim as the gas to pressurize the tire. No manual intervention is required, making the operation much simpler.

[0025] This invention uses a sensor to continuously monitor tire pressure, ensuring that the tire pressure is maintained within a precise range, thus reducing tire wear and rapid battery drain caused by excessively high or low tire pressure.

[0026] This invention can stabilize tire pressure and ensure safe handling: it automatically maintains the optimal tire pressure, avoiding problems such as steering delay and increased braking distance caused by insufficient tire pressure, and improving the stability of the vehicle on wet or rough roads.

[0027] Reduce the risk of tire blowout: Low tire pressure is one of the main causes of tire blowouts. Self-inflating systems can prevent excessive tire deformation and heat buildup, reducing the probability of sudden tire blowouts.

[0028] Extend tire life:

[0029] Even wear: Insufficient tire pressure leads to excessive wear at the tire edges, while excessive pressure accelerates wear in the center. Self-inflating technology maintains optimal pressure, resulting in more even tread wear and extending tire life by 20%-30%.

[0030] Reduce structural damage: Avoid fatigue damage to the internal cord layer caused by prolonged low-pressure driving. Attached Figure Description

[0031] Figure 1 This is a schematic diagram showing the arrangement of the solid and liquid compartments on the wheel rim according to this application.

[0032] Figure 2 This is a schematic diagram illustrating the principle of solid-liquid gas generation in this application.

[0033] Figure 3 This is a flowchart illustrating the gas replenishment principle of this application.

[0034] The components include: 1. Wheel rim; 2. Solid chamber; 3. Liquid chamber; 4. Fluid passage; 5. Gas passage; 6. Tire pressure sensor; 7. Microcontroller; 8. Micro battery; 9. Micro voltage pump; 10. Tire;

[0035] 501. Filter membrane; 502. Check valve; 503. Pressure relief valve. Detailed Implementation

[0036] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0037] like Figure 1 As shown, this utility model provides a self-inflating structure mounted on a wheel rim 1. The wheel rim 1 has two chambers: a solid chamber 2 and a liquid chamber 3. Normally, the solid chamber 2 and the liquid chamber 3 are isolated from each other, and liquid will not flow into the solid chamber 2.

[0038] Combination Figure 2 As shown, a micro-pipeline serves as a fluid passage 4 connecting the solid chamber 2 and the liquid chamber 3. A one-way valve 502 is installed on the fluid passage 4 to prevent liquid backflow. A micro-voltage pump 9 is connected to the fluid passage 4 to precisely inject liquid into the solid chamber 2 with an accuracy of ±0.01 ml. The micro-voltage pump 9 can be mounted on the rim 1 using fasteners and a pressure plate, with the pressure plate securing the micro-voltage pump 9 to the rim 1. The micro-voltage pump 9 has low power consumption, requiring less than 10 mA for a single trigger; therefore, a common micro battery 8 can power the micro-voltage pump 9. Alternatively, an electrical wire can be run from the electric vehicle to power the micro-voltage pump 9.

[0039] Another micro-pipeline is led out from the solid chamber 2 as a gas passage 5, and the output end of the gas passage 5 is connected to the tire. The gas generated in the reaction inside the solid chamber 2 is introduced into the tire through the gas passage 5.

[0040] To ensure that the gas introduced into the tire is pure and free of impurities, a filter membrane 501 is installed in the gas passage 5 to filter out impurities such as dust that may be mixed in the gas before it is introduced into the tire.

[0041] In a preferred embodiment, a filter membrane 501, a one-way valve 502, and a pressure relief valve 503 are sequentially arranged in the gas passage 5 according to the gas flow path. The advantage of this arrangement is that the filter membrane 501 first removes the trace amounts of water vapor generated during the reaction, reducing water accumulation inside the tire.

[0042] The pressure relief valve 503 is located near the tire side. If the tire pressure is too high, it can be released in time through the pressure relief valve 503 without being obstructed by the one-way valve 502.

[0043] To achieve automatic control, in one embodiment of this invention, a tire pressure sensor 6 is used to monitor tire pressure in real time, with an accuracy of ±1 psi. The tire pressure sensor 6 also integrates temperature compensation. These are inherent characteristics and functions of the tire pressure sensor 6, and will not be elaborated upon in this embodiment.

[0044] The tire pressure sensor 6 is available in built-in and external types. The built-in type has higher accuracy. It is installed inside the tire, fixed on the rim 1, and connected to the tire's airtight layer, allowing it to detect the tire pressure in real time.

[0045] The microcontroller 7 can be installed on the circuit board of the tire pressure sensor to receive the signal emitted by the tire pressure sensor 6 and send a signal to the micro voltage pump 9 to control the start and stop of the micro voltage pump 9.

[0046] The micro battery 8 is used to power the microcontroller 7 and the tire pressure sensor 6.

[0047] In a preferred embodiment of this application, the solid chamber 2 and liquid chamber 3 are connected to the rim 1 via quick-release modules. The solid chamber 2 and liquid chamber 3 are connected to the rim 1 via snap-fit ​​connections. Correspondingly, the fluid passage 4 and gas passage 5 can be connected via miniature quick-release connectors. When the material in the solid chamber 2 and liquid chamber 3 is used up, the solid chamber 2 and liquid chamber 3 can be directly removed from the reserved window on the rim 1 by pressing, and replaced with new solid chamber 2 and liquid chamber 3, which are then connected to the fluid and gas pipelines via miniature quick-release connectors.

[0048] The reaction principles of the solid materials in solid chamber 2 and the liquid materials in liquid chamber 3 used in this application are as follows:

[0049] C6H8O7+3NaHCO3→C6H5O7Na3+3H2O+3CO2↑

[0050] Gas generation: 0.1 ml of 50% citric acid solution + 0.3 g of NaHCO3 → produces approximately 25 ml of CO2 gas (at room temperature).

[0051] Inflation efficiency: For an electric vehicle tire with a volume of approximately 10L, adding 1 psi of air requires approximately 50ml of gas. A single trigger can inflate by 0.5 psi, suitable for compensating for slow leaks in daily life (typical leak rate: 0.5-1 psi / week).

[0052] The workflow for this application is as follows:

[0053] As shown in the flowchart, the tire pressure sensor 6 continuously monitors the tire pressure. When it detects that the tire pressure is below the lower threshold, the tire pressure sensor 6 sends a signal to the microcontroller 7. The microcontroller 7 controls the micro piezoelectric pump 9 to draw liquid from the liquid chamber 3 and input it into the solid chamber 2. The amount of liquid drawn at one time is 0.05-0.1 ml. After the liquid flows through the fluid pipeline into the solid chamber 2, it reacts with the solid material to generate carbon dioxide gas. The carbon dioxide gas then flows through the filter membrane 501, the one-way valve 502, and the pressure relief valve 503 in the gas pipeline before flowing into the tire to inflate it.

[0054] After starting the micro piezoelectric pump 9, check the tire pressure again after a certain delay. The delay period can be 30 seconds, which can provide time for the inflation process and prevent excessive inflation that could lead to high tire pressure.

[0055] When the tire pressure is checked again, if the tire pressure has reached the upper limit of the threshold, the micro piezoelectric pump 9 enters a dormant state and stops pumping liquid into the solid chamber 2. If the upper limit of the threshold has not yet been reached, the micro piezoelectric pump 9 is restarted to pump liquid into the solid chamber 2 for reaction until the tire pressure reaches the upper limit of the threshold.

[0056] The advantage of this application is that it eliminates the need for manual observation and inflation, achieving fully automatic monitoring and compensation of tire pressure through pre-stored chemical raw materials and sensing structures.

[0057] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A self-inflating tire, characterized in that: Includes a rim (1), on which a solid chamber (2) and a liquid chamber (3) are pre-installed. The solid chamber (2), the liquid chamber (3), and the tire (10) are connected in a one-way controllable manner. The gas generated by the reaction of materials in the solid chamber (2) and the liquid chamber (3) is input into the tire (10).

2. The self-inflating tire as described in claim 1, characterized in that: The solid chamber (2) and the liquid chamber (3) are connected by a fluid passage (4), and a micro voltage pump (9) and a one-way valve (502) are provided on the fluid passage (4).

3. The self-inflating tire as described in claim 2, characterized in that: The liquid chamber (3) is located on the side of the one-way valve (502) in the inflow direction, and the solid chamber (2) is located on the side of the one-way valve (502) in the outflow direction.

4. The self-inflating tire as described in claim 2, characterized in that: The miniature voltage pump (9) is connected to a control unit, which includes: The tire pressure sensor (6) is installed inside the tire (10) and connected to the airtight layer of the tire (10). A microcontroller (7) is located on the circuit board of the tire pressure sensor (6) and receives signals from the tire pressure sensor (6). A battery is integrated inside the housing of the tire pressure sensor (6) and provides power.

5. The self-inflating tire as described in claim 4, characterized in that: The microcontroller (7) presets the tire pressure threshold as: standard tire pressure ±10%.

6. The self-inflating tire as described in claim 1, characterized in that: A gas passage (5) connects the solid container (2) and the tire (10), and the following are arranged sequentially on the gas passage (5): Filter membrane (501) is used to remove impurities generated during the reaction. One-way valve (502) is located on the output side of filter membrane (501). The pressure relief valve (503) is located between the check valve (502) and the tire (10).

7. The self-inflating tire as described in claim 6, characterized in that: The physical opening threshold of the pressure relief valve (503) is standard tire pressure +25%.

8. The self-inflating tire as described in claim 1, characterized in that: The material in the solid bin (2) is pre-compressed sodium bicarbonate porous blocks; the material in the liquid bin (3) is a citric acid aqueous solution with a concentration of 30%-50%.

9. The self-inflating tire as described in claim 1, characterized in that: The solid chamber (2), liquid chamber (3) and rim (1) are connected by snap-fit.

10. A two-wheeled vehicle, characterized in that, A self-inflating tire as described in any one of claims 1-9.

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