Handheld nail hole detector for tire

Abstract

The utility model discloses a handheld nail hole detector for a tire, which comprises an ultrasonic detector with a plurality of ultrasonic probes, the ultrasonic detector is arranged in a handheld rod, the plurality of ultrasonic probes are sequentially arranged on a working surface of the handheld rod according to a linear array, a marking assembly is arranged in the handheld rod, and the marking assembly is arranged on the working surface of the handheld rod. The marking assembly is provided with a plurality of working ends matched with the ultrasonic probes, a mobile power source used for driving the ultrasonic detector and the marking assembly is installed in a handle of the handheld rod, and a PLC used for coordinating and controlling the ultrasonic detector and the marking assembly to work is installed in the handle. On the basis of an ultrasonic detector, the handheld nail hole detector not only achieves nondestructive detection, but also is compact in structure and convenient to carry and use. Besides, on the basis that the tire does not need to be disassembled and professional equipment is used, the detector can detect the tire nail hole and mark the position of the tire nail hole, use is convenient, operation is easy, and the tire nail hole detection efficiency and accuracy are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tire detection instruments, in particular to a handheld nail hole detector for tires. Background Art

[0002] When a car is driving, its tires come into contact with the road surface, and sharp, hard objects such as nails, glass, and stones may penetrate the tires, causing nail holes. The presence of nail holes can significantly impact tire safety and service life, and may even cause traffic accidents. Therefore, timely detection of nail holes in tires is crucial. Ultrasonic testing is one of the five conventional nondestructive testing methods. As a relatively mature nondestructive testing device, ultrasonic detectors can detect internal defects in solid materials (such as metals, plastics, and rubber), such as pores, debris, or cracks, without damaging the workpiece or the working condition of the raw materials. This is particularly true for problems like nail holes in tires, where the embedded debris has a different texture than the rubber tire. The ultrasound emitted by the ultrasonic probe can determine the location of the debris and, therefore, the nail hole, facilitating tire inspection and repair.

[0003] Prior art already has a Chinese utility model patent, publication number CN220356993U, entitled "Graphite Nondestructive Testing Instrument Equipped with Multiple Ultrasonic Probes." This instrument utilizes multiple ultrasonic probes to perform ultrasonic detection on the material being tested, expanding the detection area and making it suitable for testing large pieces of material. However, this ultrasonic testing instrument is not suitable for detecting nail holes in automobile tires because there are many different tire models and the tire being tested is typically not removed from the wheel hub. This requires a person to hold the instrument close to the tire for testing. Existing ultrasonic testing instruments are not handheld and portable, making them inconvenient to carry. Utility Model Content

[0004] The purpose of the utility model is to provide a handheld nail hole detector for tires, so as to solve the problems that existing ultrasonic detection instruments are not suitable for automobile tire nail hole detection, cannot be handheld and used at any time, and are not convenient to carry.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A handheld nail hole detector for tires includes an ultrasonic detector with multiple ultrasonic probes. The ultrasonic detector is installed in a handheld stick. The multiple ultrasonic probes are installed in a linear array on the working surface of the handheld stick. A marking assembly is provided in the handheld stick. The marking assembly has multiple working ends compatible with the ultrasonic probes. A mobile power supply for driving the ultrasonic detector and the marking assembly is installed in the handle of the handheld stick. A PLC controller for coordinating and controlling the operation of the ultrasonic detector and the marking assembly is also installed in the handle.

[0007] A further technical solution is: a sliding rod is installed on the ultrasonic probe and is slidably connected to the handheld rod. A spring is installed on the sliding rod. The two ends of the spring respectively press against the handheld rod and the lower flange of the sliding rod. The spring presses the lower flange downward, and the working end of the ultrasonic probe extends outside the working surface of the handheld rod.

[0008] A further technical solution is: the marking component includes a liquid storage tank, a micro pump, a micro solenoid valve and a nozzle, the liquid storage tank, the micro pump, the micro solenoid valve and the nozzle are connected in sequence through a pipeline according to the direction of liquid flow, and the ultrasonic detector, the micro pump and the micro solenoid valve are coordinated and controlled by the PLC controller.

[0009] A further technical solution is: a liquid inlet is provided in the liquid storage tank.

[0010] A further technical solution is: an indicator light electrically connected to the PLC controller is provided on the handheld stick.

[0011] A further technical solution is: a buzzer electrically connected to the PLC controller is provided on the handheld stick.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] This utility model provides a handheld nail hole detector for tires. Based on an ultrasonic detector, this handheld nail hole detector not only provides non-destructive testing but also boasts a compact structure, making it easy to carry and use. Furthermore, without requiring tire disassembly or specialized equipment, the detector can detect and mark the location of nail holes, making it easy to use and operate, significantly improving the efficiency and accuracy of tire nail hole detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a handheld nail hole detector for tires when in use.

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the handheld nail hole detector.

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the marked components.

[0017] Figure 4 For this utility model Figure 2 Schematic diagram of the structure of the ultrasonic probe.

[0018] Figure 5 For this utility model Figure 3 Schematic diagram of the structure with the A part in the middle enlarged.

[0019] Figure numerals: 1. ultrasonic probe; 2. ultrasonic detector; 3. hand-held rod; 4. marking assembly; 5. sliding rod; 6. spring; 7. liquid storage tank; 8. micro pump; 9. micro solenoid valve; 10. nozzle; 11. liquid inlet; 12. indicator light; 13. buzzer. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0024] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] Example 1:

[0027] This embodiment Figure 1 、 Figure 2 and Figure 3 As shown, a handheld nail hole detector for tires includes an ultrasonic detector 2 with multiple ultrasonic probes 1. The ultrasonic detector 2 is installed in a handheld stick 3. The multiple ultrasonic probes 1 are installed in a linear array on the working surface of the handheld stick 3. A marking assembly 4 is set in the handheld stick 3. The marking assembly 4 has multiple working ends compatible with the ultrasonic probes 1. A mobile power supply for driving the ultrasonic detector 2 and the marking assembly 4 is installed in the handle of the handheld stick 3. A PLC controller for coordinating and controlling the operation of the ultrasonic detector 2 and the marking assembly 4 is also installed in the handle.

[0028] This handheld nail hole detector is typically used to inspect automobile tires for nail holes (including but not limited to) during maintenance after a ride, when a tire is flat (low tire pressure), and before long-distance transport. The inspector grasps a handheld wand 3, turns on the power switch on the handle, and places the multiple linear array ultrasonic probes 1 on the working surface of the handheld wand 3 against the tire. Ultrasonic waves reflect, refract, and convert waveforms at the interface between dissimilar media. These properties enable the detection of reflected waves from the defect interface, thereby detecting defects. The detection results from the ultrasonic detector 2 are then transmitted to a PLC controller, which controls a marking component 4 to mark the location of the nail hole (or other types of defects) on the tire. This marking component 4 can be a conventional marking head or soldering iron, leaving a mark on the rubber tire to facilitate subsequent work by the inspector.

[0029] Example 2:

[0030] Based on the above embodiments, this embodiment Figure 4 and Figure 5 As shown, the ultrasonic probe 1 is equipped with a slide rod 5 that is slidably connected to the handheld rod 3. A spring 6 is mounted on the slide rod 5. The two ends of the spring 6 respectively press against the lower flanges of the handheld rod 3 and the slide rod 5. The spring 6 presses the lower flange downward, and the working end of the ultrasonic probe 1 extends outside the working surface of the handheld rod 3.

[0031] As is known to all, automobile tires are generally provided with anti-skid patterns for better grip. These anti-skid patterns may cause the outer circumference of the tire to be uneven. In order to ensure the effect of ultrasonic transmission, the ultrasonic probe 1 can be pressed against the outer circumference of the tire at all times with the help of the spring 6 when the handheld rod 3 is moved.

[0032] Example 2:

[0033] Based on the above embodiments, this embodiment Figure 3 As shown, the marking component 4 includes a liquid storage tank 7, a micro pump 8, a micro solenoid valve 9 and a nozzle 10. The liquid storage tank 7, the micro pump 8, the micro solenoid valve 9 and the nozzle 10 are connected in sequence through pipelines according to the direction of liquid flow. The ultrasonic detector 2, the micro pump 8 and the micro solenoid valve 9 are coordinated and controlled by a PLC controller.

[0034] The liquid storage tank 7 is filled with a colored liquid with a color different from that of the tire. When the detector detects a nail hole defect, the PLC controller controls the micro pump 8 to work and opens the micro solenoid valve 9, spraying the colored liquid in the liquid storage tank 7 through the nozzle 10 at the defect position of the tire or near it, making it convenient for the inspector to locate the nail hole position later.

[0035] Preferably, a liquid inlet 11 is provided in the liquid storage tank 7 .

[0036] Preferably, the handheld stick 3 is provided with an indicator light 12 electrically connected to the PLC controller.

[0037] Preferably, the handheld stick 3 is provided with a buzzer 13 electrically connected to the PLC controller.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A handheld nail hole detector for a tire, comprising an ultrasonic detector (2) with a plurality of ultrasonic probes (1), characterized in that: The ultrasonic detector (2) is installed in a handheld stick (3), and a plurality of ultrasonic probes (1) are installed on the working surface of the handheld stick (3) in a linear array sequence. A marking assembly (4) is provided in the handheld stick (3), and the marking assembly (4) has a plurality of working ends adapted to the ultrasonic probes (1). A mobile power supply for driving the ultrasonic detector (2) and the marking assembly (4) is installed in the handle of the handheld stick (3), and a PLC controller for coordinating and controlling the operation of the ultrasonic detector (2) and the marking assembly (4) is installed in the handle.

2. The handheld tire nail hole detector according to claim 1, characterized in that: The ultrasonic probe (1) is provided with a slide bar (5) which is slidably connected to the handheld rod (3). The slide bar (5) is provided with a spring (6). The two ends of the spring (6) respectively press against the lower flanges of the handheld rod (3) and the slide bar (5). The spring (6) presses the lower flange downwards, and the working end of the ultrasonic probe (1) extends outside the working surface of the handheld rod (3).

3. The handheld tire nail hole detector according to claim 1, characterized in that: The marking assembly (4) comprises a liquid storage tank (7), a micro pump (8), a micro solenoid valve (9) and a nozzle (10); the liquid storage tank (7), the micro pump (8), the micro solenoid valve (9) and the nozzle (10) are connected in sequence through a pipeline according to the direction of liquid flow; the ultrasonic detector (2), the micro pump (8) and the micro solenoid valve (9) are coordinated and controlled by the PLC controller.

4. The handheld tire nail hole detector according to claim 3, characterized in that: A liquid inlet (11) is provided in the liquid storage tank (7).

5. The handheld tire nail hole detector according to claim 1, characterized in that: The handheld stick (3) is provided with an indicator light (12) electrically connected to the PLC controller.

6. The handheld tire nail hole detector according to any one of claims 1 or 5, characterized in that: The handheld stick (3) is provided with a buzzer (13) electrically connected to the PLC controller.

Images