A device for detecting surface damage of a vehicle tire

Abstract

The utility model belongs to the automobile detection technical field, and disclose a kind of automobile tire surface damage detection device, including the detection equipment body of the fixed connection of the resistance plate with bottom end, the measuring scale of the detection equipment body top end sliding connection is extended to the inside of detection equipment body, the measuring needle of the resistance plate bottom end sliding connection is extended to the inside of detection equipment body, and measuring scale bottom end is fixedly connected with the resistance plate top end, the utility model is by installing a detachable weight on the detection equipment body top, when tire tread depth measurement, by constant pressure spring to press down weight, drive measuring needle to insert into pattern groove and measure, and the bottom of measuring needle is equipped with the ball that rolls, can be in the case where keeping resistance plate unmoved, by rotating tire to the different position in the same groove is measured, realize with constant and preset force to the effect of measuring needle to groove bottom, completely eliminate the problem of hand pressing force inconsistency.

Description

Technical Field

[0001] This utility model belongs to the field of automotive testing technology, specifically a device for detecting surface damage to automotive tires. Background Technology

[0002] As the only part of a vehicle in contact with the ground, the condition of a car tire directly affects driving safety. Damage to the tire surface, such as cracks, bulges, missing pieces, and excessive wear, if not detected in time, can easily lead to serious traffic accidents such as tire blowouts and skidding during driving.

[0003] Publication number CN217058641U discloses a tire tread groove depth measuring device. The serrated groove on the fulcrum of this utility model can be used to mark the measurement position on the tire surface. While increasing the pressure of the fulcrum, it is convenient to accurately locate the measurement position and shake the measuring ruler with the fulcrum as the axis. This not only greatly improves the accuracy of the measurement, but also provides a simple re-inspection function, effectively reducing the operation time and measurement cost, and saving human resources.

[0004] In the above technical solution, when measuring the wear of car tire treads, the serrated grooves on the fulcrum can be used to mark the measurement position on the tire surface. While increasing the pressure of the fulcrum, it is convenient to accurately locate the measurement position and shake the measuring ruler with the fulcrum as the axis, which can reduce the operation time. However, when using a tire tread depth gauge to measure the wear of the tread, the depth gauge is placed on the tire surface, the gauge needle is inserted into the tread groove, and then the gauge needle is pressed to make it contact the bottom of the tire tread groove for measurement. However, when the same worker needs to inspect multiple tires of the same batch, due to the large workload, the manual pressing for a long time can easily lead to different pressing forces each time. In addition, the tire has elasticity, which makes the depth value of the gauge needle inserted into the groove inaccurate, thus affecting the measurement data. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a device for detecting surface damage to automobile tires.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vehicle tire surface damage detection device, comprising a detection device body with a bottom plate fixedly connected to its bottom end, a measuring ruler extending into the detection device body slidably connected to the top end of the detection device body, a probe extending into the detection device body slidably connected to the bottom end of the bottom plate, and the bottom end of the measuring ruler being fixedly connected to the top end of the probe, support plates being symmetrically fixedly connected to the side walls of the detection device body, and each of the two support plates having a groove at one end close to each other, with a weight having ear plates on both sides slidably connected in the groove via a slider, and a magnetic block with a handle being snapped into the top end of the support plate, with a constant pressure spring embedded in the bottom end of the magnetic block, and the constant pressure spring abutting against the top end of the weight.

[0007] Preferably, the top of the weight is fixedly connected to a slot corresponding to the constant pressure spring, and the bottom of the constant pressure spring engages with the slot. After the magnetic block is engaged with the two support plates, it is limited by a limit bolt threaded connection.

[0008] Preferably, the weight is made of a magnetic material, and the weight is magnetically attracted to the magnetic block.

[0009] Preferably, the depth of the constant pressure spring embedded in the bottom end of the magnetic block is greater than the length of the constant pressure spring after contraction, and the slot can be embedded in the magnetic block.

[0010] Preferably, the bottom end of the probe is threaded with a connecting needle, the bottom end of the abutment plate is provided with a groove, and the inner diameter of the groove is larger than the outer diameter of the connecting needle. A retaining ring is engaged with the inner wall of the groove, and a brush is fixedly connected to the inner wall of the retaining ring.

[0011] Preferably, a rolling ball is embedded in the bottom end of the connecting needle, and the bottom wall of the ball is located outside the probe.

[0012] Preferably, the initial value measured by the probe includes the height and value of the ball and the connecting needle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features a detachable weight mounted on top of the testing device. When measuring tire tread depth, a constant pressure spring presses down on the weight, causing the probe to insert into the tread groove for measurement. The probe's bottom is equipped with rolling balls, allowing measurement to be performed at different locations within the same groove while keeping the support plate stationary. This achieves the effect of pushing the probe to the bottom of the groove with a constant and preset force, completely eliminating the problem of inconsistent pressure applied by hand.

[0014] This invention features a ring-shaped brush located inside the bottom of the support plate. After each measurement, as the ball bearings and probe are retracted into the support plate, the brush removes any adhering particulate impurities from the surface, ensuring the cleanliness of the surface when in contact with the tire and preventing any impact on the accuracy of subsequent measurements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the testing equipment of this utility model; Figure 3 This is a schematic diagram of the weights and magnetic blocks of this utility model; Figure 4 This is a schematic diagram of the brush installation of this utility model; Figure 5 This is a schematic diagram of the ball bearing of this utility model.

[0016] In the diagram: 1. Detection equipment body; 2. Backing plate; 3. Support plate; 4. Slide groove; 5. Magnetic block; 6. Weight; 7. Measuring ruler; 8. Constant pressure spring; 9. Limiting bolt; 10. Probe; 11. Connecting pin; 12. Slot; 13. Snap ring; 14. Brush; 15. Ball bearing; 16. Groove; 17. Slider. Detailed Implementation

[0017] 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.

[0018] like Figures 1 to 5 As shown, this utility model provides a vehicle tire surface damage detection device, including a detection device body 1 with a bottom plate 2 fixedly connected to the bottom end, a measuring ruler 7 extending into the detection device body 1 slidably connected to the top end of the detection device body 1, a probe 10 extending into the detection device body 1 slidably connected to the bottom end of the bottom plate 2, and the bottom end of the measuring ruler 7 is fixedly connected to the top end of the probe 10. Support plates 3 are symmetrically fixedly connected to the side walls of the detection device body 1. Each of the two support plates 3 has a groove 4 at one end close to each other. A weight 6 with ear plates on both sides is slidably connected in the groove 4 through a slider 17. A magnetic block 5 with a handle is snapped into the top end of the support plate 3. A constant pressure spring 8 is embedded in the bottom end of the magnetic block 5, and the constant pressure spring 8 abuts against the top end of the weight 6.

[0019] The top of the weight 6 is fixedly connected to a slot 12 corresponding to the constant pressure spring 8, and the bottom of the constant pressure spring 8 is engaged with the slot 12. After the magnetic block 5 is engaged with the two support plates 3, it is limited by the threaded connection of the limit bolt 9.

[0020] The above method is as follows: First, select a weight 6 suitable for testing the tire, insert it into the groove 4 from the top of the support plate 3 via the slider 17, then insert the magnetic block 5 into the top of the groove 4 and position it using the limit bolt 9. Next, move the magnetic block 5 down so that the constant pressure spring 8 is engaged in the slot 12, preventing misalignment during use from affecting the balance of the thrust. Then, place the abutment plate 2 stably on the tread pattern of the tire surface, allowing the probe 10 to insert into the tread groove. Press down on the ear plate on the weight 6 with your finger, causing the weight 6 to disconnect from the magnetic block 5. The weight 6 then moves downwards under the force of the constant pressure spring 8, vertically downwards along the groove 4, thus pressing down on the measuring ruler 7. As the measuring ruler 7 moves, it presses down on the probe 10, causing the connecting needle 11 to contact the bottom of the groove, thereby accurately measuring the depth of the tread groove and determining the degree of tire wear.

[0021] A data display screen is provided on the side of the testing equipment body 1, which is electrically connected to the testing terminal built into the testing equipment body 1. The probe 10 is electrically connected to the testing terminal. When the probe 10 tests the tire, the data is transmitted to the data display screen through the testing terminal. This technology and the specific related testing principles all adopt existing mature technologies, which will not be elaborated in the text.

[0022] like Figure 2 As shown, the weight 6 is made of magnetic material, and the weight 6 and the magnetic block 5 are magnetically attracted to each other.

[0023] The depth of the constant pressure spring 8 embedded in the bottom end of the magnetic block 5 is greater than the length of the constant pressure spring 8 after it is contracted, and the slot 12 can be embedded in the magnetic block 5.

[0024] Using the above scheme: After each tire inspection, the weight 6 can be raised, so that the constant pressure spring 8 is compressed and retracted into the magnetic block 5, and the slot 12 is also embedded in the magnetic block 5, so that the top of the weight 6 and the bottom of the magnetic block 5 are magnetically attracted, and the probe 10 is stored in the back plate 2 for positioning, which is convenient for the next inspection.

[0025] like Figure 4 As shown, the bottom end of the probe 10 is threaded with a connecting needle 11, and the bottom end of the abutment 2 is provided with a groove 16, the inner diameter of the groove 16 being larger than the outer diameter of the connecting needle 11. A retaining ring 13 is engaged with the inner wall of the groove 16, and a brush 14 is fixedly connected to the inner wall of the retaining ring 13.

[0026] The above solution is adopted: After each use of the probe 10 to contact the grooves on the tire for testing, particulate impurities will stick to the surface. During the process of retrieving the probe 10 and the ball 15 into the backing plate 2, the surface is wiped by the brush 14 to remove the particulate impurities stuck to the surface, so as to avoid affecting the measurement accuracy when used again.

[0027] like Figure 5 As shown, a rolling ball 15 is embedded in the bottom end of the connecting needle 11, and the bottom wall of the ball 15 is located outside the probe 10.

[0028] The initial value measured by probe 10 includes the height and value of ball 15 and connecting needle 11.

[0029] Using the above method: When testing different positions of the same groove on a tire, the probe 10 can be inserted into the corresponding groove for positioning. When the probe 10 is moved down for depth testing, the bottom wall of the ball bearing 15 contacts the bottom of the groove. After testing, the testing device body 1 can remain stationary, and the testing position can be switched by rotating the tire. During rotation, the ball bearing 15 rolls against the bottom wall of the groove, reducing friction. If the ball bearing 15 wears out after prolonged use, the connecting pin 11 can be unscrewed and replaced.

[0030] Working principle and usage process of this utility model: First, based on the actual testing scenario and tire condition, select a weight 6 suitable for the tire to be tested. Insert the weight 6 into the groove 4 from the top of the support plate 3. Then, attach the magnetic block 5 to the top of the support plate 3 and secure it using the limit bolts 9 on both sides. At this point, the constant pressure spring 8 is precisely engaged with the slot 12. The weight 6 can then be slid upwards to retract the constant pressure spring 8 into the magnetic block 5, and the slot 12 is embedded into the magnetic block 5, so that the top of the weight 6 and the bottom of the magnetic block 5 are magnetically attracted and fixed. After completing the preparations, the abutment plate 2 can be stably placed on the tire surface. Align the probe 10 with the grooves on the tire tread. Then, press down on the ear plates on both sides to disconnect the weight 6 from the magnet 5. The weight 6, through the constant thrust of the constant pressure spring 8, presses down on the measuring ruler 7, thereby pushing the probe 10 together with the ball bearing 15 at the bottom into the groove for depth measurement. The initial value measured by the probe 10 includes the height and value of the ball bearing 15 and the connecting needle 11, which does not affect the measurement accuracy. This achieves the effect of pushing the probe 10 to the bottom of the groove with a constant and preset force, completely eliminating the problem of inconsistent pressure from human hands. Secondly, when testing the depth of the same groove, the ball 15 at the bottom of the probe 10 contacts the bottom of the groove while keeping the abutment 2 in a fixed position. At this time, the tire can be rotated to make the ball 15 roll in the groove. Thus, while the abutment 2 remains stationary, multiple tests can be performed on different positions in the groove to improve the testing accuracy. Finally, after the test is completed, the weight 6 is lifted upwards and magnetically attracted to the bottom of the magnetic block 5 again, causing the probe 10 and the ball 15 to slide and be stored in the back plate 2. During the recycling process, the ball 15 passes through the brush 14, which can rub and wipe the surface of the ball 15 to remove the particulate impurities adhering to the surface of the ball 15, so as to avoid affecting the accuracy of the next measurement.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting surface damage to automobile tires, comprising a detection device body (1) with a backing plate (2) fixedly connected to its bottom end, characterized in that: The top of the detection device body (1) is slidably connected to a measuring ruler (7) extending into the detection device body (1), and the bottom of the abutment plate (2) is slidably connected to a probe (10) extending into the detection device body (1). The bottom of the measuring ruler (7) is fixedly connected to the top of the probe (10). The side wall of the detection device body (1) is symmetrically fixedly connected to a support plate (3). The two support plates (3) are provided with a sliding groove (4) at one end close to each other. The sliding groove (4) is slidably connected to a weight (6) with ear plates on both sides by a slider (17). The top of the support plate (3) is clamped to a magnetic block (5) with a handle. The bottom of the magnetic block (5) is embedded with a constant pressure spring (8), and the constant pressure spring (8) abuts against the top of the weight (6).

2. The vehicle tire surface damage detection device according to claim 1, characterized in that: The top of the weight (6) is fixedly connected to a slot (12) corresponding to the constant pressure spring (8), and the bottom of the constant pressure spring (8) engages with the slot (12). The magnetic block (5) is engaged with the two support plates (3) and then limited by a threaded connection of a limiting bolt (9).

3. The vehicle tire surface damage detection device according to claim 1, characterized in that: The weight (6) is made of magnetic material and is magnetically attracted to the magnetic block (5).

4. The vehicle tire surface damage detection device according to claim 1, characterized in that: The depth of the constant pressure spring (8) embedded in the bottom of the magnetic block (5) is greater than the length of the constant pressure spring (8) after contraction, and the slot (12) can be embedded in the magnetic block (5).

5. The vehicle tire surface damage detection device according to claim 1, characterized in that: The probe (10) is threaded to a connecting needle (11) at its bottom end. The bottom end of the abutment (2) is provided with a groove (16), and the inner diameter of the groove (16) is larger than the outer diameter of the connecting needle (11). A retaining ring (13) is engaged in the inner wall of the groove (16), and a brush (14) is fixedly connected to the inner wall of the retaining ring (13).

6. The vehicle tire surface damage detection device according to claim 5, characterized in that: The bottom end of the connecting needle (11) is embedded with a rolling ball (15), and the bottom wall of the ball (15) is located outside the probe (10).

7. The vehicle tire surface damage detection device according to claim 6, characterized in that: The initial value measured by the probe (10) includes the height and value of the ball (15) and the connecting needle (11).

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