A device for testing the performance of a vehicle during a tyre blowout

Abstract

The present disclosure relates to the technical field of automobile tire burst test, and one embodiment of the present disclosure provides an automobile tire burst test device, which comprises a hub, a tire and a plurality of support columns, the tire is sleeved on the hub, the support columns are fixed around the surface of the hub, an air pipe is arranged around the inner surface of the hub, a gas supplement assembly is arranged on the air pipe and the support columns, an exhaust assembly is arranged in the air pipe, the exhaust assembly comprises an inner layer, the inner layer is arranged inside the air pipe, an exhaust port is arranged at one end of the air pipe, a gas supplement port and an exhaust port are respectively arranged at both ends of the surface of the air pipe, the gas supplement port and the exhaust port are communicated with the inside of the hub, an inner sleeve is arranged on the surface of the inner layer, and a driving motor is arranged at one end of the inner sleeve. Through the above technical scheme, the technical problem that the uneven gas emission resistance of some devices in the prior art due to unreasonable exhaust structure design easily causes local force mutation of the tire, resulting in non-typical posture of the test vehicle and further affecting the effectiveness of the data is solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of automobile tire blowout testing, and more specifically, to an automobile tire blowout testing device. Background Technology

[0002] In the field of automotive safety performance testing, research on vehicle dynamic response under tire blowout conditions is a crucial aspect of ensuring driving safety, and testing equipment that simulates the real tire blowout process is the core equipment for obtaining reliable data. However, existing automotive tire blowout testing equipment has significant deficiencies in terms of gas emission speed, making it difficult to accurately reproduce the instantaneous pressure loss characteristics during a real tire blowout.

[0003] Traditional testing equipment often uses manual valves or simple puncture structures to deflate tires, with exhaust channels only 5-8mm in diameter. This results in the tire's internal pressure dropping from 2.5 bar to 0.5 bar in 3-5 seconds, far slower than the 0.1-0.3 seconds instantaneous exhaust speed of a real tire blowout. This speed difference can cause deviations in the response tests of the vehicle's suspension and braking systems; for example, the slip angle measurement error can reach more than 15%, making it impossible to accurately assess the vehicle's handling stability after a tire blowout.

[0004] Furthermore, some devices suffer from uneven gas emission resistance due to unreasonable exhaust structure design, which can easily cause sudden changes in localized tire stress, leading to atypical postures of the test vehicle and further affecting the validity of the data. With the development of new energy vehicles and intelligent driving technologies, the requirements for the authenticity and accuracy of tire blowout tests are becoming increasingly stringent. The exhaust defects of existing devices have become a significant bottleneck restricting the improvement of vehicle safety performance. Therefore, developing a tire blowout testing device that can achieve rapid gas discharge has become an urgent technical need for the industry. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a vehicle tire blowout testing device, which solves the technical problem that some devices in the prior art have uneven gas emission resistance due to unreasonable exhaust structure design, which can easily cause sudden changes in local tire stress, resulting in atypical posture of the test vehicle and further affecting the validity of the data.

[0006] According to one aspect, at least one embodiment of the present disclosure provides a vehicle tire blowout testing apparatus, comprising: The wheel hub, tire, and several support columns are provided. The tire is fitted onto the wheel hub, and the support columns are fixed around the surface of the wheel hub. Several air pipes and an air supply component are provided. The air pipes are arranged around the inner surface of the wheel hub, and the air supply component is arranged on the air pipes and the support column. An exhaust assembly, wherein the exhaust assembly is disposed in the air pipe; The exhaust assembly includes an inner layer disposed inside the air pipe. One end of the air pipe has an exhaust port, and both ends of the surface of the air pipe have an air inlet and an exhaust port, respectively. The air inlet and the exhaust port are connected to the inside of the wheel hub. The surface of the inner layer is provided with an inner sleeve, and one end of the inner sleeve is provided with a drive motor.

[0007] As a further technical solution, the output end of the drive motor is provided with a stud, the stud is located in the inner sleeve, and a movable rod is movably connected in the inner layer. One end of the movable rod is provided with an anti-detachment block, and the side end face of the anti-detachment block is provided with a threaded groove.

[0008] As a further technical solution, the stud and the threaded groove are connected by a threaded engagement, a tension spring is fitted on the movable rod, the tension spring is connected between the anti-detachment block and the inner layer surface, and a sealing plug is provided at one end of the movable rod, the sealing plug is sealed in the exhaust port.

[0009] As a further technical solution, the air replenishment component includes a connecting plate, which is fixed to one end of the support column by bolts. An air cavity is formed inside the connecting plate, and an air replenishment nozzle is formed on the surface of the connecting plate, which is connected to the air cavity.

[0010] As a further technical solution, a number of connecting pipes are arranged around the side surface of the connecting plate, and a connector is provided at one end of the connecting pipe. A connecting nozzle is rotatably connected to the connector and is screwed into one end of the air pipe.

[0011] As a further technical solution, both the inner surface of the exhaust port and the outer surface of the sealing plug are inclined structural surfaces.

[0012] As a further technical solution, the connecting pipe is made of a rigid material that cannot be bent.

[0013] As a further technical solution, a pair of sealing rings are provided between the connecting pipe and the connecting nozzle.

[0014] The beneficial effects of the embodiments disclosed herein are as follows: In this disclosure, the exhaust assembly solves the problem of uneven exhaust in traditional devices through a highly efficient exhaust design. A drive motor and stud work together to quickly pull the sealing plug, and the inclined exhaust port and sealing plug reduce airflow resistance, ensuring uniform gas discharge. A tension spring assists in the precise repositioning of the sealing plug, ensuring normal airtightness. This structure simulates the instantaneous pressure loss characteristics of a real tire blowout, avoiding sudden changes in localized tire stress, reducing atypical vehicle postures, improving data validity, and adapting to simulation needs of different blowout degrees. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure; Figure 2 This is an isometric drawing of the present disclosure; Figure 3 This is an isometric sectional view of the present disclosure; Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle; Figure 5 Appendix to this disclosure Figure 3 Enlarged view of part B in the middle section; Figure 6 Appendix to this disclosure Figure 3 Enlarged view of part C in the middle; In the diagram: 1. Wheel hub; 2. Tire; 3. Support column; 4. Air pipe; 5. Exhaust assembly; 5-1. Inner layer; 5-2. Exhaust port; 5-3. Air inlet port; 5-4. Exhaust port; 5-5. Inner sleeve; 5-6. Drive motor; 5-7. Stud; 5-8. Movable rod; 5-9. Anti-detachment block; 5-10. Threaded groove; 5-11. Tension spring; 5-12. Sealing plug; 6. Air inlet assembly; 6-1. Connecting plate; 6-2. Air chamber; 6-3. Air inlet nozzle; 6-4. Connecting pipe; 6-5. Connector; 6-6. Connecting nozzle; 7. Sealing ring. Detailed Implementation

[0017] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0020] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0022] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1-6 As shown, it illustrates a vehicle tire blowout testing apparatus according to an embodiment of the present disclosure, comprising: The wheel hub 1, the tire 2, and several support columns 3 are provided. The tire 2 is fitted onto the wheel hub 1, and the support columns 3 are fixed around the surface of the wheel hub 1. A plurality of air pipes 4 and an air supply component 6, wherein the air pipes 4 are arranged around the inner surface of the hub 1, and the air supply component 6 is arranged on the air pipes 4 and the support column 3; An exhaust assembly 5 is disposed in the air pipe 4; The exhaust assembly 5 includes an inner layer 5-1, which is disposed inside the air pipe 4. An exhaust port 5-2 is provided at one end of the air pipe 4. An air inlet 5-3 and an exhaust port 5-4 are respectively provided at both ends of the surface of the air pipe 4. The air inlet 5-3 and the exhaust port 5-4 communicate with the interior of the wheel hub 1. An inner sleeve 5-5 is provided on the surface of the inner layer 5-1. A drive motor 5-6 is provided at one end of the inner sleeve 5-5. A stud 5-7 is provided at the output end of the drive motor 5-6, and the stud 5-7 is located within the inner sleeve 5-5. In the inner layer 5-1, a movable rod 5-8 is movably connected. One end of the movable rod 5-8 is provided with an anti-detachment block 5-9. The side end face of the anti-detachment block 5-9 is provided with a threaded groove 5-10. The stud 5-7 is connected to the threaded groove 5-10 by a threaded engagement. A tension spring 5-11 is fitted on the movable rod 5-8. The tension spring 5-11 is connected between the anti-detachment block 5-9 and the surface of the inner layer 5-1. One end of the movable rod 5-8 is provided with a sealing plug 5-12, which seals the exhaust port 5-2.

[0024] In some examples, to achieve rapid and controllable evacuation of air from tire 2 and simulate a tire blowout, an exhaust assembly 5 is designed. This assembly includes an inner layer 5-1 with a hollow structure inside the air pipe 4, forming a double-layer channel with the air pipe 4. The exhaust port 5-2 at one end of the air pipe 4 is an air exhaust channel. The air inlet 5-3 and exhaust port 5-4 on the surface are used for air inlet and air from tire 2 entering the air pipe 4, respectively, and both are connected to the inside of the wheel hub 1. The inner sleeve 5-5 on the surface of the inner layer 5-1 fixes and supports the drive motor 5-6. The stud 5-7 at the motor output end is located in the inner sleeve 5-5 and is threadedly engaged with the threaded groove 5-10 of the anti-detachment block 5-9 at one end of the movable rod 5-8. The movable rod 5-8 passes through the inner layer 5-1 and can slide along it. The tension spring 5-11 on the surface connects the anti-detachment block 5-9 and the surface of the inner layer 5-1, providing a reset tension. The sealing plug 5-12 at the other end of the movable rod 5-8 is adapted to the shape of the exhaust port 5-2, and normally blocks the exhaust port 5-2. During operation, the drive motor 5-6 rotates the stud 5-7, which, through the threaded engagement, pulls the movable rod 5-8 inward, causing the sealing plug 5-12 to disengage from the exhaust port 5-2, and the tension spring 5-11 to stretch. Air from inside tire 2 enters the gap between the air pipe 4 and the inner layer 5-1 through the exhaust port 5-4, and is quickly expelled from the exhaust port 5-2, simulating a tire blowout. After exhaust is complete, the motor rotates in the opposite direction, the tension spring 5-11 pulls the movable rod 5-8 back to its original position, and the sealing plug 5-12 re-seals the exhaust port 5-2, preparing for the next test. The threaded drive enables precise displacement control of the sealing plug 5-12, ensuring timely opening and closing of the exhaust; the elastic return of the tension spring 5-11 ensures a tight fit of the sealing plug 5-12, guaranteeing airtightness under normal conditions; the double-layer channel design separates the air supply and exhaust paths, avoiding interference; the rapid opening of the exhaust port 5-2 can simulate different degrees of tire blowout, adapting to diverse testing needs. This component achieves accurate simulation of the tire blowout process through a combination of controllable exhaust and reliable sealing.

[0025] like Figures 1-6 As shown in the figure, the air replenishment component 6 in this embodiment includes a connecting plate 6-1, which is fixed to one end of the support column 3 by bolts. An air chamber 6-2 is formed inside the connecting plate 6-1, and an air replenishment nozzle 6-3 is formed on the surface of the connecting plate 6-1. The air replenishment nozzle 6-3 is connected to the air chamber 6-2. A plurality of connecting pipes 6-4 are arranged around the side surface of the connecting plate 6-1. A connector 6-5 is provided at one end of the connecting pipe 6-4. A connecting nozzle 6-6 is rotatably connected to the connector 6-5. The connecting nozzle 6-6 is screwed into one end of the air pipe 4.

[0026] In some examples, to achieve rapid tire inflation and convenient loading and unloading of tire 2, and to meet the repeated operation requirements of tire blowout tests, an inflation assembly 6 is designed. This assembly includes a connecting plate 6-1 fixed to one end of a support column 3 by bolts to form a stable support. The air chamber 6-2 inside the plate serves as a temporary storage space for the inflation airflow. The inflation nozzle 6-3 on the surface is connected to an external air source, allowing high-pressure gas to be input into the air chamber 6-2. Several connecting pipes 6-4 are evenly distributed around the side surface of the connecting plate 6-1. One end of the connecting head 6-5 is connected to the air chamber 6-2. The connecting nozzle 6-6 on the rotating fitting of the connecting head 6-5 can be flexibly adjusted in angle and is screwed into one end of the air pipe 4, thus connecting the air chamber 6-2 and the air pipe 4.

[0027] During operation, an external air source inflates the air chamber 6-2 through the air inflator 6-3. The gas then enters the air pipe 4 through the connecting pipe 6-4, connector 6-5, and connecting nozzle 6-6, and finally enters the tire 2 through the air inflator port 5-3, completing the inflation process. For disassembly, simply loosen the threaded connection between the connecting nozzle 6-6 and the air pipe 4 to separate the inflation assembly 6 from the air pipe 4, facilitating equipment maintenance or component replacement. The bolt-fixed connecting plate 6-1 facilitates overall assembly and disassembly, adapting to different testing scenarios. The rotatable connecting nozzle 6-6 reduces the installation angle limitations between the air pipe 4 and the connecting pipe 6-4, improving assembly convenience. The threaded connection ensures reliable air circuit sealing, preventing air leakage from affecting inflation efficiency. The multi-channel design of the connecting pipe 6-4 ensures even airflow distribution, guaranteeing consistent inflation throughout the tire 2. This assembly, combining convenient connection with efficient inflation, meets the needs of rapid inflation and equipment maintenance in automotive tire blowout testing, improving testing efficiency.

[0028] For example, such as Figure 4 As shown, the inner surface of the exhaust port 5-2 and the outer surface of the sealing plug 5-12 are both inclined structural surfaces.

[0029] In some examples, the inner surface of the exhaust port 5-2 is adapted to the inclined structural surface of the outer surface of the sealing plug 5-12. This design allows the contact surfaces of the sealing plug 5-12 to fit tightly when sealing the exhaust port 5-2, enhancing airtightness and preventing air leakage when the tire 2 is normally inflated. The inclined structure also guides the sealing plug 5-12 to accurately reposition, ensuring consistent sealing position each time. At the same time, during exhaust, the inclined surface reduces airflow resistance, allowing air to escape more smoothly and improving exhaust efficiency.

[0030] For example, such as Figure 1 As shown, the connecting pipe 6-4 is made of a rigid material that cannot be bent.

[0031] In some examples, the connecting pipe 6-4 is constructed of a rigid, non-bendable material, providing a stable channel for the replenishing gas flow. The rigid material ensures that the connecting pipe 6-4 maintains its shape during installation and use, preventing airflow obstruction due to bending under stress and guaranteeing stable gas delivery during replenishment. Simultaneously, the rigid structure enhances the connection stability between the connecting pipe 6-4 and the connecting plate 6-1 and connector 6-5, reducing the risk of loosening at the connection points and meeting the long-term usage requirements of the testing apparatus.

[0032] For example, such as Figure 5 As shown, a pair of sealing rings 7 are provided between the connecting pipe 6-4 and the connecting nozzle 6-6.

[0033] In some examples, a pair of sealing rings 7 between the connecting pipe 6-4 and the connecting nozzle 6-6 are located at both ends of the connection. The sealing rings 7 fill the gap between them, further enhancing the air circuit's sealing performance, preventing gas leakage from the connection during replenishment, and ensuring stable replenishment pressure. The double-seal design can withstand wear from repeated installation and removal, extending the service life of the sealing structure and ensuring long-term reliable operation of the replenishment assembly 6.

[0034] In actual use: An external air source inflates the air chamber 6-2 of the connecting plate 6-1 through the air inflator 6-3. The gas enters the air pipe 4 through the connecting pipe 6-4 and the connecting nozzle 6-6, and then enters the tire 2 through the air inflator port 5-3, completing the inflation preparation. During the test, the drive motor 5-6 drives the stud 5-7 to rotate, pulling the movable rod 5-8 to disengage the sealing plug 5-12 from the exhaust port 5-2. The tension spring 5-11 is stretched, and the gas in the tire 2 enters the air pipe 4 through the exhaust port 5-4 and is quickly expelled from the exhaust port 5-2 to simulate a tire blowout. After the venting is completed, the motor reverses, the tension spring 5-11 pulls the movable rod 5-8 to reset, the sealing plug 5-12 re-seals the exhaust port 5-2, and the connecting nozzle 6-6 can be loosened and removed for maintenance. The entire process achieves rapid venting and precise control, replicating the real tire blowout process.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A vehicle tire blowout testing device, characterized in that, include: The wheel hub (1), tire (2) and several support columns (3) are provided. The tire (2) is fitted onto the wheel hub (1), and the support columns (3) are fixed around the surface of the wheel hub (1). A plurality of air pipes (4) and an air supply component (6) are provided, wherein the air pipes (4) are arranged around the inner surface of the hub (1), and the air supply component (6) is arranged on the air pipes (4) and the support column (3); An exhaust assembly (5) is disposed in the air pipe (4); The exhaust assembly (5) includes an inner layer (5-1), which is disposed inside the air pipe (4). One end of the air pipe (4) is provided with an exhaust port (5-2). The two ends of the surface of the air pipe (4) are respectively provided with an air inlet (5-3) and an exhaust port (5-4). The air inlet (5-3) and the exhaust port (5-4) are connected to the inside of the wheel hub (1). The surface of the inner layer (5-1) is provided with an inner sleeve (5-5), and one end of the inner sleeve (5-5) is provided with a drive motor (5-6).

2. The vehicle tire blowout testing device according to claim 1, characterized in that, The output end of the drive motor (5-6) is provided with a stud (5-7), the stud (5-7) is located in the inner sleeve (5-5), and a movable rod (5-8) is movably connected in the inner layer (5-1). One end of the movable rod (5-8) is provided with an anti-detachment block (5-9), and the side end face of the anti-detachment block (5-9) is provided with a threaded groove (5-10).

3. The vehicle tire blowout testing device according to claim 2, characterized in that, The stud (5-7) and the threaded groove (5-10) are connected by a threaded engagement. A tension spring (5-11) is fitted on the movable rod (5-8). The tension spring (5-11) is connected between the anti-detachment block (5-9) and the surface of the inner layer (5-1). A sealing plug (5-12) is provided at one end of the movable rod (5-8). The sealing plug (5-12) seals the vent (5-2).

4. The vehicle tire blowout testing device according to claim 1, characterized in that, The air replenishment component (6) includes a connecting plate (6-1), which is fixed to one end of the support column (3) by bolts. An air chamber (6-2) is provided in the connecting plate (6-1), and an air replenishment nozzle (6-3) is provided on the surface of the connecting plate (6-1). The air replenishment nozzle (6-3) is connected to the air chamber (6-2).

5. The vehicle tire blowout testing device according to claim 4, characterized in that, The connecting plate (6-1) has several connecting pipes (6-4) arranged around its side surface. One end of each connecting pipe (6-4) is provided with a connector (6-5). A connecting nozzle (6-6) is rotatably connected to the connector (6-5). The connecting nozzle (6-6) is screwed into one end of the air pipe (4).

6. The vehicle tire blowout testing device according to claim 3, characterized in that, The inner surface of the exhaust port (5-2) and the outer surface of the sealing plug (5-12) are both inclined structural surfaces.

7. The vehicle tire blowout testing device according to claim 5, characterized in that, The connecting pipe (6-4) is made of a rigid material that cannot be bent.

8. The vehicle tire blowout testing device according to claim 5, characterized in that, A pair of sealing rings (7) are provided between the connecting pipe (6-4) and the connecting nozzle (6-6).

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