Handheld tire pattern detector

By designing an automated spring-driven probe and clamping assembly, the problems of cumbersome operation and large errors of traditional handheld tire tread detectors have been solved, achieving high-precision and efficient tire tread detection.

CN224136537UActive Publication Date: 2026-04-17DALIAN TYRE FACTORY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN TYRE FACTORY CO LTD
Filing Date
2025-06-17
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional handheld tire tread pattern detectors are cumbersome to operate, prone to measurement errors due to manual shaking or uneven force application, and the test results are inconsistent between different personnel, affecting the accuracy and efficiency of the test.

Method used

A handheld tire tread detector was designed, which uses a spring-driven probe to automatically insert into the tread groove. Combined with a clamping component and a moving component, it realizes automated measurement, reduces manual intervention, and improves measurement accuracy and efficiency.

Benefits of technology

Automated measurement reduces human error, improves detection accuracy and efficiency, ensures data consistency, and adapts to tires of different sizes and shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tire pattern detection, in particular to a handheld tire pattern detector which comprises a shell, scale marks, a sliding block, a probe, a fixing block, a pressing block, a spring and the like. Scale marks are arranged on the shell, the left side and the right side of the shell are open, a sliding block and a pressing block are slidably connected into the shell, a probe is connected to the side, away from the pressing block, of the sliding block, a fixing block is connected to the bottom of the pressing block, and a spring is connected between the fixing block and the bottom of the shell. According to the utility model, the slide block, the probe, the fixed block, the pressing block and the spring are arranged, under the elastic force of the spring, the probe extends into the tread pattern groove, the probe automatically pops up through the spring and compresses the tread pattern groove, errors caused by unstable manual pressing are avoided, and the measurement precision is improved; the detector can move along the surface of the tire, and the probe moves in the tread pattern groove, so that the tread pattern groove can be continuously measured.
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Description

Technical Field

[0001] This utility model relates to the field of tire tread detection technology, and in particular to a handheld tire tread detector. Background Technology

[0002] Inspecting tire tread patterns is crucial because tread depth directly affects vehicle safety and performance. Sufficient tread depth ensures good tire grip and water drainage, especially on wet roads, preventing skidding and improving braking performance, effectively reducing the risk of traffic accidents. Regularly checking tire tread patterns can detect uneven wear or abnormal damage early, ensuring driving safety and extending tire life.

[0003] A tire tread depth gauge is a specialized tool designed for the precise measurement of tire tread depth. It provides tread depth data quickly and accurately, helping to determine whether tires need to be replaced or rotated to even out wear.

[0004] Traditional handheld tire tread pattern detectors present numerous inconveniences during use. Operation requires manual pressing of the device and the use of a probe to hold the tire surface in place for measurement. This process is not only cumbersome but also prone to error due to hand tremors or uneven force, causing the probe to slip or deviate from its measurement position, thus affecting accuracy. Furthermore, prolonged repetitive operation increases the risk of human error, reducing overall inspection efficiency. Additionally, because it relies on manual judgment and operation, measurement results may vary between different personnel, making it difficult to guarantee data consistency and reliability. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a handheld tire tread detector.

[0006] The technical implementation scheme of this utility model is as follows: A handheld tire tread detector includes a shell, scale lines, a slider, a probe, a fixing block, a pressure block, a spring, a guide block, a rod, a contact block, a pointer, a clamping assembly, and a moving assembly. The shell has scale lines and is open on both the left and right sides. The slider and the pressure block are slidably connected inside the shell. The probe is connected to the side of the slider away from the pressure block. The bottom of the pressure block is connected to the fixing block. A spring is connected between the fixing block and the bottom of the shell. A guide block is connected to one end of the bottom of the shell. A rod is slidably connected to the guide block and is inserted into the fixing block. Contact blocks are connected to the front and rear sides of the shell near the probe. A pointer is connected to the slider. The upper end of the pointer is higher than the upper surface of the shell and is slidably connected to the upper surface of the shell. The pointer is slidably connected to the shell. A clamping assembly is connected to the end of the shell away from the probe. A moving assembly for moving on the side of the tire is connected inside the clamping assembly.

[0007] As an improvement to the above solution, it also includes a first movable wheel, with the first movable wheel installed on the side of the contact block away from the fixed block.

[0008] As an improvement to the above solution, the clamping assembly includes a guide plate, a rotating shaft, and a rotating rod. The guide plate is slidably connected to the end of the housing away from the probe. The front and rear ends of the guide plate are rotatably connected to the rotating shaft. A rotating rod is connected to each rotating shaft. The side of the rotating rod away from the rotating shaft is connected to the moving assembly.

[0009] As an improvement to the above solution, the clamping assembly also includes a torsion spring, with a torsion spring connecting both the rotating shaft and the rotating rod.

[0010] As an improvement to the above solution, the guide plate has slots at both the front and rear ends that are adapted to the rotating rod, and the rotating rod is engaged with the guide plate through the slots.

[0011] As an improvement to the above solution, the moving component includes a connecting block, a disc, and a second moving wheel. The end of the rotating rod away from the rotating shaft is connected to the connecting block by screws. The two connecting blocks are connected to the disc on the side that is close to each other. The disc is equipped with a second moving wheel along the circumference.

[0012] This invention includes a slider, a probe, a fixing block, a pressure block, and a spring. Under the elastic force of the spring, the probe extends into the tire tread groove. The probe is automatically ejected by the spring and pressed against the tire tread groove, avoiding errors caused by unstable manual pressing and improving measurement accuracy. It also includes a clamping component and a moving component, which enable the detector to move along the tire surface and the probe to move within the tire tread groove, thereby enabling continuous measurement of the tire tread groove. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a schematic diagram of the structure of the outer shell, contact block, and first moving wheel of this utility model.

[0015] Figure 3 This is a cross-sectional view of the outer shell of this utility model.

[0016] Figure 4 This is a schematic diagram of the structure of the guide plate, rotating shaft, and rotating rod of this utility model.

[0017] Figure 5 This is a schematic diagram of the structure of the connecting block, disc, and second moving wheel of this utility model.

[0018] In the attached diagram, the following are the reference numerals: 1_outer shell, 101_scale line, 102_guide block, 2_slider, 3_probe, 4_fixed block, 5_pressure block, 6_spring, 7_insertion rod, 8_contact block, 9_first moving wheel, 10_pointer, 11_guide plate, 111_slot, 12_rotating shaft, 13_rotating rod, 14_torsion spring, 15_connecting block, 151_screw, 16_disc, 17_second moving wheel. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings.

[0020] A handheld tire tread detector, such as Figures 1-5 As shown, the assembly includes a housing 1, a scale line 101, a slider 2, a probe 3, a fixing block 4, a pressure block 5, a spring 6, a plug rod 7, a contact block 8, a pointer 10, a clamping assembly, a moving assembly, and a first moving wheel 9. The scale line 101 is provided on the housing 1. The housing 1 is open on both the left and right sides. The slider 2 and the pressure block 5 are slidably connected inside the housing 1. The probe 3 is connected to the side of the slider 2 away from the pressure block 5. The fixing block 4 is connected to the bottom of the pressure block 5. The spring 6 is connected between the fixing block 4 and the bottom of the housing 1. One end of the bottom of the housing 1 is fixedly connected to... A guide block 102 is provided, on which the insertion rod 7 is slidably connected. The insertion rod 7 is inserted into the fixing block 4. The outer shell 1 is connected to the contact blocks 8 on both the front and rear sides near the probe 3. The slider 2 is connected to the pointer 10, the upper end of which is higher than the upper surface of the outer shell 1 and is slidably connected to the upper surface of the outer shell 1. A clamping assembly is connected to the end of the outer shell 1 away from the probe 3. A moving assembly for moving on the side of the tire is connected inside the clamping assembly. The first moving wheel 9 is installed on the side of the contact block 8 away from the fixing block 4.

[0021] like Figure 1 and Figure 4 As shown, the clamping assembly includes a guide plate 11, a rotating shaft 12, a rotating rod 13, and a torsion spring 14. The guide plate 11 is slidably connected to the end of the housing 1 away from the probe 3. The rotating shaft 12 is rotatably connected to both ends of the guide plate 11. The rotating rod 13 is fixedly connected to both ends of the rotating shaft 12. The side of the rotating rod 13 away from the rotating shaft 12 is connected to the moving component. The torsion spring 14 is connected between the rotating shaft 12 and the rotating rod 13. The guide plate 11 has slots 111 at both ends that are adapted to the rotating rod 13. The rotating rod 13 is engaged with the guide plate 11 through the slots 111.

[0022] like Figure 1 and Figure 4As shown, the moving assembly includes a connecting block 15, a disc 16, and a second moving wheel 17. The end of the rotating rod 13 away from the rotating shaft 12 is connected to the connecting block 15 by screws 151. The disc 16 is connected to the side of the two connecting blocks 15 that are close to each other. The second moving wheel 17 is mounted on the disc 16 in the circumferential direction.

[0023] Initially, the tire is placed flat on the table, the spring 6 is in the stretched state, the insert rod 7 is inserted into the fixing block 4, the pointer 10 is at the zero mark of the scale line 101, the probe 3 is retracted into the housing 1, the connecting block 15 is provided on the rotating rod 13, the torsion spring 14 is in the unloaded state, and the rotating rod 13 is located in the slot 111. When it is necessary to check the tire tread depth, hold the housing 1, bring the contact block 8 close to the tire tread, and then hold the insert rod 7 to make the insert rod 7 slide away from the fixing block. 4. The spring 6 returns to its original state, causing the pressure block 5 to push the slider 2 closer to the tire tread, aligning the probe 3 with the tire tread groove. Under the elastic force of the spring 6, the probe 3 is always pressed into the tire tread groove. The probe 3 is automatically ejected by the spring 6 and pressed firmly into the tire tread groove, avoiding errors caused by unstable manual pressing and improving measurement accuracy. The reading of the scale line 101 pointed to by the pointer 10 is the distance the probe 3 extends into the tire tread groove, thereby measuring the tire tread groove. For convenient depth measurement, when measuring the depth of the entire tire tread groove, manually rotate the rotating rod 13 to disengage it from the slot 111. The torsion spring 14 deforms, and the connecting block 15 is fixed to the rotating rod 13 by the screw 151. Align the disc 16 with the tire sidewall. Under the elastic force of the torsion spring 14, the rotating rod 13 clamps the two sides of the tire, and the second moving wheel 17 is pressed against the tire sidewall. Hold the outer casing 1, and using the rotating rod 13 as the force point, move the detector along the tire circumference. The probe 3 moves within the tire tread grooves, enabling continuous measurement of the tire tread grooves without the need for tools to fix the tire. When other tire tread grooves need to be tested, hold the outer shell 1 and slide it along the guide plate 11, then align the probe 3 with the other tire tread grooves. This allows for continuous measurement of multiple tread grooves around the entire tire circumference, greatly improving testing efficiency. It is adaptable to tires of different sizes and shapes, exhibiting good versatility. After testing, simply reverse the above steps to retract the detector.

[0024] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A hand-held tire pattern detector characterized by, The assembly includes a housing (1), scale lines (101), a slider (2), a probe (3), a fixing block (4), a pressure block (5), a spring (6), a plug (7), a guide block (102), a contact block (8), a pointer (10), a clamping assembly, and a moving assembly. The housing (1) has scale lines (101) on it. The left and right sides of the housing (1) are open. The slider (2) and the pressure block (5) are slidably connected inside the housing (1). The probe (3) is connected to the side of the slider (2) away from the pressure block (5). The bottom of the pressure block (5) is connected to the fixing block (4). The spring connects the fixing block (4) to the bottom of the housing (1). Spring (6), guide block (102) is connected to one end of the bottom of the outer shell (1), insert rod (7) is slidably connected to the guide block, insert rod (7) is inserted into the fixing block (4), contact block (8) is connected to both the front and rear sides of the outer shell (1) near the probe (3), pointer (10) is connected to the slider (2), the upper end of pointer (10) is higher than the upper surface of the outer shell (1), and pointer (10) is slidably connected to the upper surface of the outer shell (1), pointer (10) is slidably connected to the outer shell (1), clamping assembly is connected to one end of the outer shell (1) away from the probe (3), and moving assembly for moving on the side of the tire is connected inside the clamping assembly.

2. A hand-held tire pattern detector according to claim 1, wherein, It also includes a first moving wheel (9), and the first moving wheel (9) is installed on the side of the contact block (8) away from the fixed block (4).

3. A hand-held tire pattern detector according to claim 2, wherein, The clamping assembly includes a guide plate (11), a rotating shaft (12) and a rotating rod (13). The guide plate (11) is slidably connected to the end of the housing (1) away from the probe (3). The rotating shaft (12) is rotatably connected to both the front and rear ends of the guide plate (11). A rotating rod (13) is connected to the rotating shaft (12). The side of the rotating rod (13) away from the rotating shaft (12) is connected to the moving assembly.

4. A handheld tire tread pattern detector according to claim 3, characterized in that, The clamping assembly also includes a torsion spring (14), and a torsion spring (14) is connected between the rotating shaft (12) and the rotating rod (13).

5. A hand-held tyre pattern detector according to claim 4, characterised in that The guide plate (11) has slots (111) at both the front and rear ends that are compatible with the rotating rod (13). The rotating rod (13) is engaged with the guide plate (11) through the slots (111).

6. A hand-held tyre pattern detector according to claim 5, characterised in that The moving assembly includes a connecting block (15), a disc (16), and a second moving wheel (17). The end of the rotating rod (13) away from the rotating shaft (12) is connected to the connecting block (15) by screws (151). The two connecting blocks (15) are connected to the disc (16) on the side that is close to each other. The second moving wheel (17) is installed on the disc (16) in the circumferential direction.