A tire puncture resistance self-repair detection device

Abstract

The utility model discloses a kind of tire puncture resistance self-repair detection device, mainly for testing the puncture resistance of self-repair tire and self-repair ability.Device includes bottom plate, water tank, stand, lifting mechanism, horizontal plate, U-shaped plate, pressure sensor and puncture rod etc. Tire is installed in water tank, rotates simulation driving state by driving motor driving rotating shaft rod, lifting mechanism controls puncture rod to press down and carry out puncture test, pressure sensor monitors puncture force in real time, water tank transparent design is convenient for observing tire leakage condition.The utility model structure is simple, easy to operate, can simulate real road condition, improve test accuracy and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tire quality testing technology, specifically to a tire puncture resistance self-repair testing device. Background Technology

[0002] Under complex and harsh operating conditions, the puncture resistance of tires is a crucial safety indicator. Self-sealing tires are an emerging product in the tire industry. Their specially designed inner wall rubber coating can wrap around foreign objects to prevent air leakage when punctured, and instantly fill the puncture when the foreign object is removed. Therefore, testing their self-repair capabilities is essential.

[0003] Currently, there is a lack of dedicated testing devices for self-sealing tires in existing technologies. Most testing methods only simulate static punctures and cannot simulate the dynamic puncture process when the tire is rotating. Furthermore, the testing accuracy is low and the repair effect is difficult to quantify. For example, traditional methods often use manual punctures or simple mechanical devices, which have problems such as inaccurate control of puncture force, inability to monitor in real time, and inconvenience in observation.

[0004] Therefore, there is an urgent need for a device that can simulate real working conditions, integrate automated control and visual detection, in order to accurately assess the self-repair performance of tires. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a tire puncture resistance self-repair detection device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A tire puncture resistance self-repair testing device includes a base plate, a water tank installed at the top of the base plate, a tire disposed inside the water tank, a stand fixedly connected to the top of the base plate, a rotating shaft above the stand, a lifting mechanism installed above the stand, a horizontal plate installed at the bottom of the lifting mechanism, a U-shaped plate installed at the top of the horizontal plate by screws, a pressure sensor fixedly connected to the lower end of the U-shaped plate, and a puncture rod disposed below the pressure sensor.

[0008] As a further embodiment of this utility model, the water tank is slidably installed on the base plate, and the water tank is transparent.

[0009] As a further embodiment of this utility model, a bearing seat is installed on the outer side of the rotating shaft, and a bearing is provided on the inner side of the bearing seat, and the bearing seat is fixedly connected to the upright frame.

[0010] As a further embodiment of this utility model, the lifting mechanism includes a fixed block, a servo motor is fixedly connected to the outer side of the fixed block, a lead screw is fixedly connected to the end of the main shaft of the servo motor, a lead screw sleeve is helically connected to the outer side of the lead screw, a rotating rod is rotatably connected to the outer side of the lead screw sleeve, and a pressure plate is fixedly connected to the outer side of the rotating rod.

[0011] As a further embodiment of this utility model, the lead screw is provided with opposite external threads, and the opposite threads on the lead screw are arranged horizontally and symmetrically.

[0012] As a further embodiment of this utility model, a drive motor is fixedly connected to the top of the base plate, a small pulley is fixedly connected to the end of the main shaft of the drive motor, a belt is installed on the inner side of the small pulley, a large pulley is installed on the other side of the belt, and the large pulley is fixedly connected to the rotating shaft.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses a drive motor and a rotating shaft to rotate the tire, combined with a lifting mechanism to control the puncture, simulating the dynamic puncture process during vehicle operation, resulting in test results that more closely reflect real-world usage. A pressure sensor monitors the puncture force in real time, and the data can be recorded and analyzed for quantifying puncture resistance. The transparent water tank design allows direct observation of bubble formation, enabling assessment of leaks and repair effectiveness. The lifting mechanism employs a servo motor and lead screw structure to achieve precise raising and lowering of the puncture rod, reducing human error. The drive motor smoothly drives the tire rotation via a pulley drive. The water tank and base plate slide together for easy tire replacement and cleaning. The modular design of each component facilitates maintenance and is suitable for testing tires of different sizes. The device is overall stable, and the puncture process is controllable, avoiding potential risks associated with traditional testing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a tire puncture resistance self-repair testing device according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the overall back of a tire puncture resistance self-repair detection device according to an embodiment of the present utility model;

[0018] Figure 3This is a schematic diagram of the overall structure of the lifting mechanism of a tire puncture resistance self-repair detection device according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the installation structure of the pressure sensor and puncture rod of a tire puncture resistance self-repair detection device according to an embodiment of the present utility model.

[0020] Figure 5 This is a schematic diagram of the installation structure of the rotating shaft and bearing seat of a tire puncture resistance self-repair testing device according to an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the overall structure of the drive mechanism of a tire puncture resistance self-repair detection device according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Base plate; 2. Water tank; 3. Stand; 4. Lifting mechanism; 5. Horizontal plate; 6. U-shaped plate; 7. Pressure sensor; 8. Piercing rod; 9. Rotating shaft; 10. Tire; 11. Shaft seat; 12. Drive motor; 13. Small pulley; 14. Belt; 15. Large pulley; 41. Fixing block; 42. Servo motor; 43. Lead screw; 44. Lead screw sleeve; 45. Rotating rod; 46. Pressure plate. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a tire puncture resistance self-repair detection device is provided.

[0026] Please refer to the instruction manual appendix. Figure 1-6 According to an embodiment of the present invention, a tire puncture resistance self-repair detection device includes a base plate 1, a water tank 2 installed at the top of the base plate 1, a tire 10 disposed inside the water tank 2, a stand 3 fixedly connected to the top of the base plate 1, a rotating shaft 9 disposed above the stand 3, a lifting mechanism 4 installed above the stand 3, a horizontal plate 5 installed at the bottom of the lifting mechanism 4, a U-shaped plate 6 installed at the top of the horizontal plate 5 by screws, a pressure sensor 7 fixedly connected to the lower end of the U-shaped plate 6, and a puncture rod 8 disposed below the pressure sensor 7.

[0027] Base plate 1: Serves as the basic support platform for the device, fixing components such as the uprights and drive motor to ensure overall stability. A sliding rail is provided at the top of the base plate for easy sliding installation of the water tank.

[0028] Water Tank 2: Contains water, into which the tire is immersed; during puncture testing, air bubbles in the water are observed to determine if the tire is leaking. The water tank is transparent (e.g., made of glass or plastic) for easy visual monitoring; it slides onto the base plate for convenient tire installation, removal, and cleaning.

[0029] Frame 3: Vertically fixed to the base plate, used to support the rotating shaft and lifting mechanism, ensuring structural rigidity during the puncture process.

[0030] Rotating shaft 9: Mounted on the upright frame via bearing 11, used to fix the tire and drive its rotation; the bearing is built into the bearing to reduce friction and ensure smooth rotation.

[0031] Lifting Mechanism 4: The core control component used to precisely adjust the vertical position of the puncture rod. It includes a fixed block 41, a servo motor 42, a lead screw 43, a lead screw sleeve 44, a rotating rod 45, and a pressure plate 46. The servo motor drives the lead screw to rotate, and the opposite thread design on the lead screw causes the lead screw sleeve to move synchronously in opposite directions. The rotating rod and pressure plate drive the horizontal plate to rise and fall, thereby controlling the puncture depth.

[0032] Horizontal plate 5 and U-shaped plate 6: The horizontal plate is connected to the lifting mechanism, and the U-shaped plate is installed on it with screws to form a support frame; the pressure sensor 7 is fixed to the lower end of the U-shaped plate to detect the force value when the puncture rod is pressed down.

[0033] Puncture rod 8: Installed below the pressure sensor, the tip can simulate foreign objects such as nails; during puncture, the pressure sensor converts the force signal into an electrical signal and outputs it to an external recorder.

[0034] Drive motor 12, small pulley 13, belt 14 and large pulley 15: The drive motor drives the rotating shaft to rotate through belt drive to simulate the tire driving state; the speed ratio design of the small pulley and the large pulley can adjust the tire speed to adapt to different test conditions.

[0035] In one embodiment, please refer to the appendix to the specification. Figure 1-6 As a further embodiment of this utility model, the water tank 2 is slidably installed with the base plate 1, and the water tank 2 is transparent.

[0036] In one embodiment, please refer to the appendix to the specification. Figure 1-6 As a further embodiment of this utility model, a bearing seat 11 is installed on the outer side of the rotating shaft 9, and a bearing is provided on the inner side of the bearing seat 11. The bearing seat 11 is fixedly connected to the upright frame 3.

[0037] In one embodiment, please refer to the appendix to the specification. Figure 1-6 As a further embodiment of this utility model, the lifting mechanism 4 includes a fixed block 41, a servo motor 42 is fixedly connected to the outside of the fixed block 41, a lead screw 43 is fixedly connected to the end of the main shaft of the servo motor 42, a lead screw sleeve 44 is helically connected to the outside of the lead screw 43, a rotating rod 45 is rotatably connected to the outside of the lead screw sleeve 44, and a pressure plate 46 is fixedly connected to the outside of the rotating rod 45.

[0038] In one embodiment, please refer to the appendix to the specification. Figure 1-6 As a further embodiment of this utility model, the lead screw 43 is provided with opposite external threads, and the opposite threads on the lead screw 43 are arranged horizontally and symmetrically.

[0039] In one embodiment, please refer to the appendix to the specification. Figure 1-6 As a further embodiment of this utility model, a drive motor 12 is fixedly connected to the top of the base plate 1, a small pulley 13 is fixedly connected to the end of the main shaft of the drive motor 12, a belt 14 is installed on the inner side of the small pulley 13, a large pulley 15 is installed on the other side of the belt 14, and the large pulley 15 is fixedly connected to the rotating shaft 9.

[0040] Workflow:

[0041] Initiating tire rotation: Turn on the drive motor 12, which drives the rotating shaft 9 to rotate the tire 10 through the small pulley 13, belt 14, and large pulley 15. The tire speed is adjustable to simulate different vehicle speeds (e.g., 30-80 km / h).

[0042] Controlling the puncture process: The position of the puncture rod 8 is adjusted by the lifting mechanism 4. The servo motor 42 drives the lead screw 43 to rotate, and the lead screw sleeve 44 drives the rotating rod 45 and the pressure plate 46 to press down the horizontal plate 5, so that the puncture rod slowly contacts the tire surface. The pressure sensor 7 monitors the puncture force in real time and transmits the data to the computer system.

[0043] Perform a puncture test: When the puncture rod pierces the tire, the pressure sensor records the maximum puncture force value; maintain the puncture state for a period of time (e.g., 10-30 seconds) to simulate foreign object retention. At this time, observe whether air bubbles are generated in water tank 2: if there are no air bubbles, it indicates that the tire self-healing coating has effectively sealed the puncture; if there are air bubbles, record the leakage situation.

[0044] Assess repair effectiveness: Withdraw the puncture probe and raise the level plate using the lifting mechanism; continue rotating the tire and observe whether the puncture point leaks again. Repair effectiveness can be judged by the time it takes for the bubbles to disappear and changes in pressure.

[0045] Data recording and analysis: Repeated tests are performed multiple times to statistically analyze parameters such as puncture force and recovery time, generating test reports. The device is adaptable to puncture rods of different shapes to simulate various foreign objects.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tire puncture resistance self-repair testing device, comprising a base plate (1), characterized in that: A water tank (2) is installed at the top of the base plate (1). A tire (10) is provided on the inner side of the water tank (2). A stand (3) is fixedly connected to the top of the base plate (1). A rotating shaft (9) is provided above the stand (3). A lifting mechanism (4) is installed above the stand (3). A horizontal plate (5) is installed at the bottom of the lifting mechanism (4). A U-shaped plate (6) is installed at the top of the horizontal plate (5) by screws. A pressure sensor (7) is fixedly connected to the lower end of the U-shaped plate (6). A puncture rod (8) is provided below the pressure sensor (7).

2. The tire puncture resistance self-repair testing device according to claim 1, characterized in that: The water tank (2) is slidably installed on the base plate (1), and the water tank (2) is transparent.

3. The tire puncture resistance self-repair testing device according to claim 1, characterized in that: A bearing seat (11) is installed on the outer side of the rotating shaft (9), and a bearing is provided on the inner side of the bearing seat (11). The bearing seat (11) is fixedly connected to the upright frame (3).

4. The tire puncture resistance self-repair testing device according to claim 1, characterized in that: The lifting mechanism (4) includes a fixed block (41), a servo motor (42) is fixedly connected to the outside of the fixed block (41), a lead screw (43) is fixedly connected to the end of the main shaft of the servo motor (42), a lead screw sleeve (44) is screwed to the outside of the lead screw (43), a rotating rod (45) is rotatably connected to the outside of the lead screw sleeve (44), and a pressure plate (46) is fixedly connected to the outside of the rotating rod (45).

5. The tire puncture resistance self-repair testing device according to claim 4, characterized in that: The lead screw (43) is provided with opposite external threads, and the opposite threads on the lead screw (43) are arranged horizontally and symmetrically.

6. The tire puncture resistance self-repair testing device according to claim 1, characterized in that: A drive motor (12) is fixedly connected to the top of the base plate (1). A small pulley (13) is fixedly connected to the end of the main shaft of the drive motor (12). A belt (14) is installed on the inner side of the small pulley (13). A large pulley (15) is installed on the other side of the belt (14). The large pulley (15) is fixedly connected to the rotating shaft (9).

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