Tire tread testing equipment

Abstract

The present application belongs to the technical field of tire detection, and in particular, relates to a tread detection device, which includes a handheld housing, a detection housing, a detection unit, a control unit, a display unit and a calibration unit: the detection housing is located on the side of the handheld housing along a length direction perpendicular to the detection housing; the detection housing includes a detection head, and the detection head is used for the tread detection device to be placed on the tread of the tire during measurement; the detection unit is arranged in the detection housing, and the detection unit is used to emit a light beam to project light onto the tread of the tire and collect an image of the tread containing the light; the control unit is electrically connected to the detection unit, and the control unit is used to receive the image collected by the detection unit and detect the tread according to the light in the image collected by the detection unit; the display unit is electrically connected to the control unit, and the display unit is used to display the detection result of the tire tread; the calibration unit is used to calibrate the tread detection device, thereby improving the accuracy of tread detection.

Description

Technical Field

[0001] The present application belongs to the technical field of tire detection, and in particular, relates to a tread pattern detection device. Background Art

[0002] The safety of automobile driving is inseparable from the inspection of tire tread, because the depth, width and shape of the tread will affect the friction between the tire and the ground. This requires us to regularly inspect the tread of the tire. Usually, the tread of the tire is detected by tread detection equipment, but after long-term use, the tread detection device may affect the test results due to aging and wear of components, resulting in a decrease in the accuracy of the test results. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a tire tread detection device, including but not limited to solving the problem of decreased accuracy of tire tread detection devices in related technologies.

[0004] The technical solution adopted in the embodiment of the present application is:

[0005] In a first aspect, a tread pattern detection device is provided, which is used to detect the tread of a vehicle tire, and the tread pattern detection device includes a handheld housing, a detection housing, a detection unit, a control unit, a display unit and a calibration unit: the detection housing is located on the side of the handheld housing along a length direction perpendicular to the detection housing; the detection housing includes a detection head, and the detection head is used for the tread pattern detection device to be placed on the tread of the tire during measurement; the detection unit is arranged in the detection housing, and the detection unit is used to emit a light beam to project light onto the tread of the tire and collect an image of the tread containing the light; the control unit is electrically connected to the detection unit, and the control unit is used to receive the image collected by the detection unit and detect the tread according to the light in the image collected by the detection unit; the display unit is electrically connected to the control unit, and the display unit is used to display the detection result of the tire tread; the calibration unit is used to calibrate the tread pattern detection device.

[0006] The tread tread detection device of the embodiment of the present application can be calibrated by the calibration unit. Therefore, before detection, the tread tread detection device can be calibrated by the calibration unit to determine whether the accuracy of the tread tread detection device is qualified, which is beneficial to improve the accuracy of subsequent tread tread detection.

[0007] In some embodiments, the tread detection device also includes a code reading unit, which is used to collect an image of the code on the side of the tire, or collect an image of vehicle information carried by the vehicle; the control unit is electrically connected to the code reading unit, and the control unit is used to receive the image collected by the code reading unit, identify the information in the image collected by the code reading unit, and parse the relevant information of the tire based on the image collected by the code reading unit.

[0008] By adopting the technical solution of this embodiment, when detecting tires, the code reading unit can be used to obtain an image of the tire code or an image of the vehicle information carried by the vehicle, and the obtained image can be recognized by the control unit and the relevant information of the tire can be parsed, thereby quickly obtaining the relevant information of the tire, which is conducive to shortening the tire detection time and improving the tire detection efficiency.

[0009] In some embodiments, the code reading unit is disposed on a handheld housing.

[0010] By adopting the technical solution of this embodiment, the code reading unit is installed on the handheld housing. When in use, the code reading unit is close to the hand of the inspector. The inspector can align the code reading unit with the code or vehicle information more easily and accurately, thereby more accurately obtaining the image of the code or the image of the vehicle information, thereby improving the accuracy of obtaining relevant information about the tire.

[0011] In some embodiments, the calibration unit includes a positioning part and a calibration part, the positioning part is used to position the detection head, and the calibration part has a calibration structure, and the calibration structure is used to adapt to the tread of the tread to calibrate the tread detection equipment.

[0012] By adopting the technical solution of this embodiment, the detection head is positioned on the positioning part, the calibration part and the detection unit are relatively fixed, and the calibration accuracy of the tread detection equipment is better; in addition, the calibration part is provided with a calibration structure, and the calibration structure is adapted to the tread of the tread, so that the calibration process can better simulate the tire detection process, which is beneficial to improving the accuracy of the calibration.

[0013] In some embodiments, the calibration structure includes a plurality of calibration grooves, and at least two of the calibration grooves have different groove depths.

[0014] By adopting the technical solution of this embodiment, the calibration structure adopts a groove structure, which has a simple structure and is easy to manufacture; the calibration groove can be similar to the tread of the tread, and the calibration accuracy is good; the design of multiple calibration grooves can also detect the accuracy of tread detection of the tread at different positions by the tread detection device; in addition, the groove depths of at least two calibration grooves are different, so that the accuracy of tread detection of the tread at different depths by the tread detection device can be detected, so that the tread detection device can be calibrated more comprehensively, so that the detection accuracy of subsequent tread detection devices is good.

[0015] In some embodiments, the detection head and the positioning portion are plugged into each other for positioning, and / or the detection head and the positioning portion are magnetically positioned for positioning.

[0016] By adopting the technical solution of this embodiment, the positioning structure is simple, the positioning operation is simple, and it is beneficial to improve the calibration efficiency.

[0017] In some embodiments, the detection unit includes a photoelectric unit and an image acquisition unit, which are installed in the detection housing. The photoelectric unit is used to emit a light beam to project light onto the tread; the image acquisition unit is used to capture an image of the tread containing light, and the image acquisition unit is electrically connected to the control unit.

[0018] By adopting the technical solution of this embodiment and utilizing the cooperation of the photoelectric unit and the image acquisition unit to detect the tread, parameter information of the tread can be obtained more accurately, which is beneficial to improving the accuracy of the tread detection results.

[0019] In some embodiments, the lens of the image acquisition unit is tilted toward the photoelectric unit so that an angle α is formed between the optical axis of the image acquisition unit and the center line of the light beam, wherein 0°<α≤60°.

[0020] By adopting the technical solution of this embodiment, the lens of the image acquisition unit is tilted toward the photoelectric unit, so that the optical axis of the image acquisition unit can intersect with the center line of the light beam, which is beneficial to improving the clarity of the image acquired by the image acquisition unit and improving the detection accuracy of the tire tread detection equipment; in addition, the angle between the optical axis of the image acquisition unit and the center line of the light beam is α, and 0°<α≤60°, which is beneficial to make the intersection of the optical axis of the image acquisition unit and the center line of the light beam fall on the tread, so that the image acquisition unit can obtain an image with better clarity and better improve the detection accuracy of the tire tread detection equipment.

[0021] In some embodiments, the detection head has an abutting surface for abutting against the tread, and the abutting surface is provided with an anti-skid and weight-reducing structure.

[0022] By adopting the technical solution of this embodiment, during detection, the abutment surface abuts against the tread, and the anti-skid and weight-reducing structure can increase the friction between the abutment surface and the tread, thereby improving the stability of the detection unit relative to the tread, which is beneficial to improving the accuracy of the detection structure; the anti-skid and weight-reducing structure can also reduce the weight of the detection head, making the detection of the tread detection equipment more labor-saving and more convenient to operate.

[0023] In some embodiments, the tire tread detection device also includes a power supply unit and a charging unit, which are installed on a handheld housing, and the control unit, the display unit and the detection unit are all electrically connected to the power supply unit, and the power supply unit is used to supply power to the control unit, the display unit and the detection unit, and the charging unit is electrically connected to the control unit, and the charging unit is used to charge the power supply unit.

[0024] By adopting the technical solution of this embodiment, the power supply unit can provide power to the control unit, the display unit and the detection unit, so that the wireless use of the tire tread detection device can be realized, and the use of the tire tread detection device is more convenient. In addition, the charging unit can replenish power to the power supply unit in time, which also facilitates the use of the tire tread detection device.

[0025] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 Schematic diagram of the structure of the tire tread detection device provided in some embodiments of the present application Figure 1 .

[0028] Figure 2 for Figure 1 An exploded schematic diagram of the tire tread detection device is shown.

[0029] Figure 3 for Figure 2 Schematic diagram of the tire tread detection device with the protective cover and calibration unit hidden.

[0030] Figure 4 for Figure 3 Schematic diagram of the components of the handheld housing in the tire tread detection device shown in the figure Figure 1 .

[0031] Figure 5 for Figure 3 Schematic diagram of the components of the handheld housing in the tire tread detection device shown in the figure Figure 2 .

[0032] Figure 6 for Figure 1 The structure of the tire tread detection device shown in FIG. Figure 2 .

[0033] Figure 7 for Figure 6 An exploded schematic diagram of the tire tread detection device is shown.

[0034] Figure 8 for Figure 1 The structure of the tire tread detection device shown in FIG. Figure 3 .

[0035] Fig. 9 For along Figure 8 Sectional view along line AA.

[0036] Fig.10 for Figure 2 Schematic diagram of the structure of the detection head shown in.

[0037] Among them, the reference numerals in the figure are:

[0038] 100, tread detection device; 10, handheld housing; 11, upper housing; 12, lower housing; 20, detection housing; 21, detection head; 211, abutment surface; 212, anti-skid and weight-reducing structure; 213, second magnetic attraction member; 214, second mounting hole; 215, second cover plate; 22, second connecting portion; 23, mounting portion; 30, detection unit; 31, photoelectric unit; 32, image acquisition unit; 40, code reading unit; 41, camera; 42, fixing member; 421, fixing cavity; 43, protective member; 50, control unit; 60 , display unit; 70, power supply unit; 80, charging unit; 81, charging interface; 82, charging plate; 90, calibration unit; 91, positioning part; 911, positioning groove; 912, first mounting hole; 92, calibration part; 921, calibration structure; 922, calibration groove; 93, first magnetic member; 94, first cover plate; 101, first connecting part; 102, first electrical connecting member; 1021, accommodating space; 103, second electrical connecting member; 104, heat insulating member; 105, protective cover; 106, button; 107, vibration member. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments in any suitable manner.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces). "Several" means one or more than one, unless otherwise clearly and specifically defined.

[0045] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0047] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0048] The tread pattern detection device provided in the embodiment of the present application is used to detect the tread of the tire, and specifically can detect the pattern of the tread, so as to judge the wear condition of the tire; wherein the tread of the tire can refer to the surface of the tire in contact with the ground, the pattern of the tread can be called the tread pattern, and the pattern of the tread can refer to the groove of the tread, and specifically can detect the width, groove depth and other parameters of the groove. The tread pattern detection device of the embodiment of the present application also includes a calibration unit, and the calibration unit is used to calibrate the tread pattern detection device to improve the accuracy of the detection.

[0049] The following combination Figures 1 to 10 Some embodiments of the present application are described.

[0050] like Figures 1 to 5 As shown, in some embodiments of the present application, a tread detection device 100 is provided, which is used to detect the tread of a vehicle tire. The tread detection device 100 includes a handheld housing 10, a detection housing 20, a detection unit 30, a control unit 50, a display unit 60 and a calibration unit 90; the detection housing 20 is located on the side of the handheld housing 10 along a length direction perpendicular to the detection housing 20; the detection housing 20 includes a detection head 21, and the detection head 21 is used for the tread detection device 100 to be placed on the tread of the tire during measurement; the detection unit 30 is arranged in the detection housing 20, and the detection unit 30 is used to emit a light beam to project light onto the tread of the tire and collect an image of the tread containing the light; the control unit 50 is electrically connected to the detection unit 30, and the control unit 50 is used to receive the image collected by the detection unit 30 and detect the tread according to the light in the image collected by the detection unit 30; the display unit 60 is electrically connected to the control unit 50, and the display unit 60 is used to display the detection result of the tire tread; the calibration unit 90 is used to calibrate the tread detection device 100.

[0051] The handheld housing 10 may refer to a shell structure for a detection person to hold in the tire tread detection device 100. The handheld housing 10 may be made of metal, plastic, etc., and may have a variety of shapes, such as a cuboid, a cylinder, etc.

[0052] The detection housing 20 may refer to a shell structure used for detecting the tread in the tread detection device 100, and the detection housing 20 may be used to install components such as the detection unit 30 of the tread detection device 100. The detection housing 20 may be made of metal, plastic, or the like.

[0053] The detection housing 20 is located on the handheld housing 10 along a direction perpendicular to the length of the detection housing 20 (see Figures 1 to 5 The side portion (the direction indicated by the arrow F) may mean that the detection housing 20 and the detection housing 20 are arranged along a length direction perpendicular to the detection housing 20; wherein the detection housing 20 and the handheld housing 10 may be arranged at intervals or at least partially in contact with each other.

[0054] The detection head 21 may refer to the part of the detection housing 20 that is placed on the tread; for example, the detection head 21 may contact the tread so that the detection housing 20 is fixed relative to the tread. During detection, the detection head 21 is placed on the tread so that the detection housing 20 is fixed relative to the tread. At this time, the detection unit 30 is fixed relative to the tread, and the image collected by the detection unit 30 is clearer and more accurate, which is conducive to improving the accuracy of detection.

[0055] The detection unit 30 may refer to a component for detecting the tread. The detection unit 30 may be detected by a pure visual solution, or by a photoelectric plus visual solution, or by other methods. The detection unit 30 is installed in the detection housing 20, and the detection housing 20 supports the detection unit 30. In particular, the detection unit 30 may be completely disposed in the detection housing 20 or partially disposed in the detection housing 20 without affecting the detection of the detection unit 30.

[0056] The control unit 50 may refer to a component that can detect the image collected by the detection unit 30, recognize the information in the image, and parse the relevant information of the tread according to the image; in some examples, the control unit 50 may be implemented by a circuit board; the control unit 50 may also include one or more processors, the processors may be integrated or distributed, the detection unit 30 may be integrated with the processor, and the processor integrated with the detection unit 30 may realize functions such as image recognition. For example, the processor may be Intel's Core processor, AMD's Ryzen processor, etc.

[0057] The display unit 60 may refer to a component capable of displaying information, and the display unit 60 may be a liquid crystal screen, an LED screen, etc. The detection results (e.g., parameters such as the width and depth of the tire tread) analyzed by the control unit 50 may be displayed through the display unit 60, so that the detection personnel can understand the detection results in time and improve the convenience of detection.

[0058] The calibration unit 90 may refer to a component used to calibrate the tire tread detection device 100 . The calibration unit 90 may be made of materials such as metal and plastic.

[0059] The tread detection device 100 of the embodiment of the present application, during detection, the handheld housing 10 of the tire detection unit 30 is held, and the detection housing 20 is placed on the bottom of the vehicle. The detection unit 30 is used to emit a light beam to project light onto the tread of the tire and collect an image of the tread containing the light; the control unit 50 receives the image collected by the detection unit 30 and detects the tread according to the light in the image; finally, the display unit 60 displays the detection result of the tire tread, thereby completing the tire detection.

[0060] The tread tread detection device 100 of the embodiment of the present application can be calibrated by the calibration unit 90. Therefore, before the detection, the calibration unit 90 can be used to calibrate the tread tread detection device 100 to determine whether the accuracy of the tread tread detection device 100 is qualified, which is beneficial to improve the accuracy of subsequent tread tread detection.

[0061] In some cases, the handheld housing 10 and the detection housing 20 are arranged along the length direction of the detection housing 20 (see Figures 1 to 5 The tread detection device 100 is arranged in the direction indicated by the arrow F in the middle), so that the length of the tread detection device 100 is long. When the tread detection device 100 is placed at the bottom of the vehicle to detect the tread, the detection personnel abut one end of the tread detection device 100 along the length direction against the tread for detection. However, when the vehicle chassis is low, the space at the bottom of the vehicle is small, and it is difficult for the detection personnel to use force correctly, which makes it difficult for the end of the tread detection device 100 to fit tightly against the tread, thereby affecting the accuracy of the detection. In the tread detection device 100 of the embodiment of the present application, the detection shell 20 is located on the side of the handheld shell 10 along the length direction perpendicular to the detection shell 20, which can reduce the length of the tread detection device 100, improve the accuracy of the detection, and also meet the tire detection of vehicles with low chassis.

[0062] In some embodiments, the detection shell 20 is located on the side of the handheld shell 10 along a length direction perpendicular to the detection shell 20, so that the shell of the tire tread detection device 100 has a two-section structure; during detection, the detection shell 20 can be extended into the gap between the vehicle and the ground, and the handheld shell 10 can be located outside the gap to meet the needs of tire detection of vehicles with lower chassis.

[0063] In other embodiments of the present application, see Figures 2 to 5 As shown, the tread detection device 100 also includes a code reading unit 40, which is used to collect an image of the code on the side of the tire, or collect an image of vehicle information carried by the vehicle; the control unit 50 is electrically connected to the code reading unit 40, and the control unit 50 is used to receive the image collected by the code reading unit 40, identify the information in the image collected by the code reading unit 40, and parse out relevant information of the tire based on the image collected by the code reading unit 40.

[0064] The code reading unit 40 may refer to a component that can capture an image of the code on the side of the tire or an image of vehicle information carried by the vehicle; the code reading unit 40 may use a visual solution to acquire the image; the code reading unit 40 may be a camera or other component.

[0065] The control unit 50 can also receive the image captured by the code reading unit 40, identify the information in the image captured by the code reading unit 40, and analyze the relevant information of the tire according to the image captured by the code reading unit 40; the relevant information of the tire can refer to the tread parameter information of the tread; for example: the depth of the tread of the tire before use, the depth is compared with the tread depth detected by the detection unit 30, so as to judge the wear of the tire, and then judge whether the tire should be replaced; another example: the depth of the tread of the tire when the tire needs to be replaced, the depth is compared with the tread depth detected by the detection unit 30, so as to judge the wear of the tire, and then judge whether the tire should be replaced. Of course, it can also include information such as the width of the tread.

[0066] The tread detection device 100 of the embodiment of the present application can, when in use, use the code to obtain the image of the tire code or the image of the vehicle information carried by the vehicle using the code reading unit 40, and the image can be recognized by the control unit 50 and the relevant information of the tire can be parsed, thereby obtaining the relevant information of the tire; then, the handheld housing 10 holding the tire detection unit 30 and the detection housing 20 are placed at the bottom of the vehicle, so that the detection unit 30 detects the tread, and the tread information obtained by the detection is compared with the relevant information of the tire, so as to determine the wear condition of the tire, thus completing the tire detection. Among them, the image of the tire code or the image of the vehicle information carried by the vehicle using the code reading unit 40 can also be located after the detection unit 30 detects the tread.

[0067] By adopting the technical solution of this embodiment, when detecting tires, the code reading unit 40 can be used to obtain an image of the tire code or an image of the vehicle information carried by the vehicle, and the obtained image can be recognized by the control unit 50 and the relevant information of the tire can be parsed, so as to quickly obtain the relevant information of the tire, which is conducive to shortening the tire detection time and improving the tire detection efficiency.

[0068] In other embodiments of the present application, see Figures 2 to 5 As shown, the code reading unit 40 is disposed on the handheld housing 10 .

[0069] The code reading unit 40 is disposed on the handheld housing 10 , and the handheld housing 10 serves as a mounting base of the code reading unit 40 , and plays a role in supporting and fixing the code reading unit 40 .

[0070] By adopting the technical solution of this embodiment, the code reading unit 40 is installed on the handheld housing 10. When in use, the code reading unit 40 is close to the hand of the inspector. The inspector can align the code reading unit 40 with the code or vehicle information more easily and accurately, so as to more accurately obtain the image of the code or the image of the vehicle information, thereby improving the accuracy of obtaining relevant information about the tire.

[0071] In other embodiments of the present application, see Figures 2 to 5 As shown, the code reading unit 40 includes a camera 41 , and the camera 41 is installed on the handheld housing 10 .

[0072] The camera 41 may refer to a device capable of capturing images or videos, and the camera 41 may be electrically connected to the control unit 50 , thereby converting the captured coded image and the image of the vehicle information into a digital signal, and then transmitting it to the control unit 50 .

[0073] By adopting the technical solution of this embodiment, the camera 41 has a strong image capture capability and the captured image has high clarity, which is conducive to the control unit 50 accurately identifying the relevant information of the tire and improving the accuracy of detection; in addition, the camera 41 is small in size, which is also conducive to reducing the volume of the tread detection equipment 100, thereby meeting the detection requirements of tires of vehicles with lower chassis.

[0074] In other embodiments of the present application, see Figures 2 to 5 As shown, the code reading unit 40 also includes a fixing member 42 and a protective member 43 . The fixing member 42 is installed in the handheld housing 10 , the camera 41 is fixed to the fixing member 42 , and the protective member 43 is connected to the handheld housing 10 and is used to protect the lens of the camera 41 .

[0075] The fixing part 42 may refer to a component for fixing the camera 41 . The fixing part 42 may be fixed in the handheld housing 10 . The camera 41 is mounted on the fixing part 42 . The fixing part 42 serves as a mounting base for the camera 41 and plays a role in supporting and fixing the camera 41 .

[0076] In some examples, the fixing member 42 may be provided with a fixing cavity 421, and the camera 41 is installed in the fixing cavity 421 to achieve fixation. The fixing stability of the camera 41 is good. Of course, the camera 41 can also be fixed to the fixing member 42 by fasteners or the like.

[0077] The protective part 43 may refer to a component covering the lens of the camera 41, and the protective part 43 may have a light-transmitting portion, which is used to be arranged opposite to the lens of the camera 41 so that the lens of the camera 41 can capture images; the protective part 43 is installed on the handheld housing 10; wherein, the protective part 43 can be attached to the groove on the surface of the handheld housing 10, so that the structure of fixing the protective part 43 is simple and the reliability of fixing is good; of course, other fixing methods can also be provided between the protective part 43 and the handheld housing 10, such as: screwing, bonding, etc.

[0078] By adopting the technical solution of this embodiment, the fixing member 42 is used to fix the camera 41. The fixing stability of the camera 41 is good, which is conducive to capturing clearer images, so that the control unit 50 can accurately obtain relevant information about the tire; in addition, the protective member 43 can protect the lens of the camera 41 and reduce the entry of external dust into the lens, thereby facilitating the capture of clearer images and improving the accuracy of obtaining relevant information about the tire.

[0079] In other embodiments of the present application, see Figure 6 and Figure 7 As shown, the calibration unit 90 includes a positioning portion 91 and a calibration portion 92 . The positioning portion 91 is used to position the detection head 21 . The calibration portion 92 has a calibration structure 921 . The calibration structure 921 is used to match the tread of the tread to calibrate the tread detection device 100 .

[0080] The positioning part 91 may refer to the part of the calibration unit 90 used to position the detection head 21; the calibration part 92 may refer to the part used to calibrate the tread detection device 100, wherein the calibration part 92 may be provided with a calibration structure 921, and the calibration structure 921 may be a structure that is the same as or similar to the tread of the tire, so as to facilitate the calibration of the tread detection device 100; for example, the calibration structure 921 may be a groove structure similar to the tread. The positioning part 91 and the calibration part 92 may be integrally formed components, for example, the positioning part 91 and the calibration part 92 are integrally injection molded; the positioning part 91 and the calibration part 92 may also be separately molded and then connected as a whole, for example, by bonding, threading, etc.

[0081] When the detection head 21 is positioned on the positioning part 91, the photoelectric unit 31, the image acquisition unit 32 and the calibration part 92 can be located on the same side of the detection housing 20, and the photoelectric unit 31 emits a light beam, which is projected onto the calibration structure 921. Then, the image acquisition unit 32 acquires an image of the calibration structure 921 containing the light. Then, the control unit 50 recognizes the image, and parses out relevant information of the calibration structure 921 based on the image, and then compares the relevant information with the information of the calibration structure 921 itself, so as to determine the detection accuracy of the tread detection device 100.

[0082] By adopting the technical solution of this embodiment, the detection head 21 is positioned on the positioning part 91, the calibration part 92 is relatively fixed to the detection unit 30, and the calibration accuracy of the tread detection equipment 100 is better; in addition, the calibration part 92 is provided with a calibration structure 921, and the calibration structure 921 is adapted to the tread of the tread, so that the calibration process can better simulate the tire detection process, which is beneficial to improving the accuracy of the calibration.

[0083] In other embodiments of the present application, see Figure 6 and Figure 7 As shown, the calibration structure 921 includes a plurality of calibration grooves 922 , and at least two calibration grooves 922 have different groove depths.

[0084] The calibration groove 922 may refer to a groove structure formed by a depression on the surface of the calibration portion 92. The number of the calibration grooves 922 may be two, three, or more than four. The plurality of calibration grooves 922 may be arranged in parallel or crosswise. The groove depths of at least two of the plurality of calibration grooves 922 are inconsistent.

[0085] By adopting the technical solution of this embodiment, the calibration structure 921 adopts a groove structure, which has a simple structure and is easy to manufacture; the calibration groove 922 can be similar to the tread of the tread, and the calibration accuracy is good; the design of multiple calibration grooves 922 can also detect the accuracy of tread detection of different positions by the tread detection device 100; in addition, the groove depths of at least two calibration grooves 922 are different, so that the accuracy of tread detection of different depths by the tread detection device 100 can be detected, so that the tread detection device 100 can be calibrated more comprehensively, so that the subsequent detection accuracy of the tread detection device 100 is good.

[0086] In other embodiments of the present application, see Figure 6 and Figure 7 As shown, the detection head 21 is plugged and positioned with the positioning portion 91 .

[0087] In some examples, the detection head 21 is provided with a groove and the positioning portion 91 is provided with a protrusion, or the detection head 21 is provided with a protrusion and the detection head 21 is provided with a groove, wherein the protrusion can be inserted into the groove, and the groove wall of the groove is used to limit the protrusion, thereby realizing the plug-in positioning of the detection head 21 and the positioning portion 91.

[0088] In some examples, the positioning portion 91 is provided with a groove, the detection head 21 can be inserted into the groove, and the groove wall of the groove is used to limit the detection head 21, thereby realizing the plug-in positioning of the detection head 21 and the positioning portion 91. Alternatively, the detection head 21 is provided with a groove, the positioning portion 91 can be inserted into the groove, and the groove wall of the groove is used to limit the positioning portion 91, thereby realizing the plug-in positioning of the detection head 21 and the positioning portion 91.

[0089] By adopting the technical solution of this embodiment, the detection head 21 and the positioning part 91 are plugged and positioned, and the positioning structure is simple and the positioning operation is simple, which is conducive to improving the calibration efficiency.

[0090] In other embodiments of the present application, see Figure 6 and Figure 7 As shown, the positioning portion 91 is provided with a positioning groove 911 , and the positioning groove 911 is used to accommodate at least a portion of the detection head 21 and limit the movement of the detection head 21 .

[0091] The positioning groove 911 may refer to a groove structure that is recessed on the surface of the positioning portion 91. A portion of the detection head 21 may be located inside the positioning groove 911, and another portion may be located outside the positioning groove 911. Alternatively, the entire detection head 21 may be located in the positioning groove 911. The shape of the positioning groove 911 is the same as or not much different from the shape of the detection head 21, so that the groove wall of the positioning groove 911 can be used to limit the movement of the detection head 21, thereby realizing the plug-in fixation of the positioning portion 91 and the detection head 21.

[0092] By adopting the technical solution of this embodiment, the plug-in positioning is achieved by utilizing the cooperation between the positioning groove 911 and the detection head 21. The positioning structure is simple, the processing and manufacturing are convenient, the calibration operation is simple and the positioning accuracy is good, which is conducive to improving the calibration efficiency and calibration accuracy.

[0093] In other embodiments of the present application, see Figure 6 and Figure 7 As shown, the positioning portion 91 and the detection head 21 are positioned by magnetic attraction.

[0094] The positioning portion 91 and the detection head 21 are positioned by magnetic attraction.

[0095] In some examples, the positioning portion 91 and the detection head 21 are respectively made of two materials that are magnetically attracted to each other, for example: the positioning portion 91 is made of iron, and the detection head 21 is made of a magnet; or, the positioning portion 91 is made of a magnet, and the detection head 21 is made of iron; or, the positioning portion 91 and the detection head 21 are respectively made of two materials with different magnetic properties.

[0096] In some examples, two components that are magnetically attracted to each other are respectively disposed in the positioning portion 91 and the detection head 21 , wherein one component may be an iron block and the other component may be a magnet; or, the two parts are magnets that are magnetically attracted to each other.

[0097] By adopting the technical solution of this embodiment, the detection head 21 and the positioning part 91 are magnetically positioned, and the positioning structure is simple and the positioning operation is simple, which is conducive to improving the calibration efficiency.

[0098] In other embodiments of the present application, see Figures 5 to 7As shown, the positioning portion 91 is provided with a first magnetic attraction member 93 , and the detection head 21 is provided with a second magnetic attraction member 213 for magnetically attracting the first magnetic attraction member 93 .

[0099] The first magnetic member 93 and the second magnetic member 213 may refer to two parts that can be magnetically attracted to each other. The first magnetic member 93 may be an iron member, and the second magnetic member 213 may be a magnet; or the second magnetic member 213 may be an iron member, and the first magnetic member 93 may be a magnet; or the first magnetic member 93 and the second magnetic member 213 may be magnets with different magnetic properties.

[0100] By adopting the technical solution of this embodiment, the detection head 21 and the positioning part 91 are magnetically positioned by using the first magnetic member 93 and the second magnetic member 213. The detection head 21 and the positioning part 91 can be magnetically positioned without accurate alignment, and the positioning operation is simple, which is conducive to improving the calibration efficiency.

[0101] In some embodiments, see Fig. 9 and Fig.10 As shown, the detection head 21 and the positioning portion 91 are plugged and positioned, and the detection head 21 and the positioning portion 91 are magnetically positioned.

[0102] When the detection head 21 and the positioning portion 91 are plugged and fixed, the detection head 21 and the positioning portion 91 are also fixed by magnetic attraction.

[0103] In some examples, a first mounting hole 912 is provided on the bottom surface of the positioning groove 911, and the first magnetic component 93 is installed in the first mounting hole 912. A first cover plate 94 is provided in the positioning groove 911, and the first cover plate 94 covers the opening of the first mounting hole 912 to close the opening, thereby protecting the first magnetic component 93; a second mounting hole 214 is provided on the detection head 21, and the second magnetic component 213 is installed in the second mounting hole 214, and a second cover plate 215 is provided on the detection head 21, and the second cover plate 215 covers the opening of the second mounting hole 214 to close the opening, thereby protecting the second magnetic component 213; in this way, the groove wall of the positioning groove 911 can be used to accurately position the detection head 21, and at the same time, the magnetic adsorption effect of the first magnetic component 93 and the second magnetic component 213 can also be used, so that the detection head 21 and the positioning part 91 can be stably and reliably adsorbed together, thereby improving the accuracy of calibration.

[0104] By adopting the technical solution of this embodiment, the detection head 21 and the positioning part 91 are both plug-in and magnetically connected. The plug-in makes the positions of the detection head 21 and the positioning part 91 relatively fixed, and the magnetic attraction makes the detection head 21 and the positioning part 91 stably and reliably adsorbed together, thereby improving the accuracy of calibration.

[0105] In some embodiments, see Figure 2As shown, the length direction of the handheld shell 10 is parallel to the length direction of the detection shell 20. In this way, when the detection personnel holds the handheld shell 10 and abuts the detection shell 20 against the tread, the force applied by the detection personnel is parallel to the tread, so that the detection shell 20 can abut against the tread more accurately, which is beneficial to improving the detection accuracy.

[0106] In some embodiments, the length direction of the handheld housing 10 and the length direction of the detection housing 20 may also be perpendicular, so that during detection, the handheld portion of the handheld housing 10 can be located outside the gap between the vehicle and the ground, thereby facilitating the detection personnel to hold the handheld housing, making the detection operation more convenient, and also meeting the requirements of tire detection of vehicles with lower chassis. Of course, the length direction of the handheld housing 10 and the length direction of the detection housing 20 may also be set at an acute angle or an obtuse angle.

[0107] In some embodiments, the control unit 50 is disposed in the handheld housing 10. The control unit 50 is a larger component inside the tire tread detection device 100. The control unit 50 is disposed in the handheld housing 10, so that the length of the handheld housing 10 and the length of the detection housing 20 are not much different, thereby reducing the overall length of the tire tread detection device 100, thereby meeting the requirements of tire detection of vehicles with lower chassis. Of course, in other embodiments, the control unit 50 can also be disposed in the detection housing 20.

[0108] In some embodiments, the handheld housing 10 is further provided with a button 106 for easy operation.

[0109] In some embodiments, the handheld housing 10 includes an upper shell 11 and a lower shell 12, which are covered and connected to each other and enclose a receiving space. The receiving space can provide installation space for some components of the tire tread detection device 100 to facilitate the assembly of the tire tread detection device 100.

[0110] In some embodiments, the handheld housing 10 is provided with a protective cover 105 to protect the handheld housing 10 ; the protective cover 105 may be a rubber cover or the like.

[0111] In other embodiments of the present application, see Figure 3 As shown, the tire tread detection device 100 further includes a first connection portion 101 , and the first connection portion 101 is connected between the detection housing 20 and the handheld housing 10 .

[0112] The first connection part 101 may refer to a component of the tread detection device 100 that connects the handheld housing 10 and the detection housing 20. The first connection part 101 and the handheld housing 10 are integrally formed components, for example, the first connection part 101 and the handheld housing 10 are integrally injection molded; or, the first connection part 101 and the handheld housing 10 are separately molded and then connected as a whole, for example, the first connection part 101 is fixed to the handheld housing 10 by bonding, bolts, etc.

[0113] In some examples, one end of the first connecting portion 101 is connected to the handheld housing 10, and the other end of the first connecting portion 101 is fixedly connected to the detection housing 20, so that the handheld housing 10 and the detection housing 20 can be fixed together, so that the detection housing 20 can be stably abutted against the tread; by way of example, the first connecting portion 101 is provided with a through hole, the detection housing 20 passes through the through hole, and the detection housing 20 and the first connecting portion 101 are connected by screws, bonding, or the like.

[0114] In some examples, one end of the first connecting portion 101 is connected to the handheld housing 10, and the other end of the first connecting portion 101 is rotatably connected to the detection housing 20, so that the handheld housing 10 can rotate along the circumference of the detection housing 20; by way of example, the first connecting portion 101 is provided with a through hole, and the detection housing 20 passes through the through hole, and the detection housing 20 can rotate in the through hole, so that the handheld housing 10 can rotate along the circumference of the detection housing 20; the handheld housing 10 can rotate relative to the detection housing 20, so that during detection, the detection personnel can adjust the height of the handheld housing 10, so that the detection housing 20 can better abut against the tread of the tire, thereby improving the accuracy of detection, and also better meeting the tire detection of vehicles with lower chassis.

[0115] In other embodiments of the present application, see Figure 3 As shown, the display unit 60 is disposed on the handheld housing 10 , and the display unit 60 can display tire-related information.

[0116] The display unit 60 is located at the side of the control unit 50 facing away from the detection housing 20 , so that the detection personnel can view the detection results displayed on the display screen. Of course, the display unit 60 can also be located at other sides of the control unit 50 .

[0117] By adopting the technical solution of this embodiment, the detection results and some information (for example, tread parameter information and tire coding, etc.) parsed by the control unit 50 can be displayed through the display unit 60, so that the detection personnel can understand the detection results in time and improve the convenience of detection; in addition, the display unit 60 is installed on the handheld housing 10, and the handheld housing 10 can be located outside the gap between the vehicle and the ground during detection, so that the handheld housing 10 can be designed to be larger, so that the display unit 60 can be designed to be larger, and then the tire information and inspection results can be displayed more comprehensively; in addition, the display unit 60 is a larger component in the tread detection device 100, and installing it on the handheld housing 10 is conducive to reducing the size of the detection housing 20, better utilizing the space inside the tread detection device 100, thereby shortening the length of the tread detection device 100, and also facilitating personnel to view the detection results.

[0118] In other embodiments of the present application, see Figure 4 and Figure 5 As shown, the tire tread detection device 100 also includes a power supply unit 70 and a charging unit 80, which are installed on the handheld housing 10, and the control unit 50, the display unit 60 and the detection unit 30 are all electrically connected to the power supply unit 70, and the power supply unit 70 is used to supply power to the control unit 50, the display unit 60 and the detection unit 30, and the charging unit 80 is electrically connected to the power supply unit 70, and the charging unit 80 is used to charge the power supply unit 70.

[0119] The power supply unit 70 may refer to a component capable of providing electric energy, and the power supply unit 70 may be a battery; the charging unit 80 may refer to a component capable of charging the power supply unit 70, and the charging unit 80 may be a charging interface 81, a charging line, etc. For example, the charging unit 80 includes a charging plate 82 and a charging interface 81, and the charging interface 81 is electrically connected to the control unit 50 through the charging plate 82, so that the electric energy input by the charging interface 81 is transmitted to the power supply unit 70 through the charging plate 82 and the control unit 50. The charging interface 81 may be a USB interface, a TYPE-C interface, etc. Among them, the power supply unit 70 also supplies power to the code reading unit 40.

[0120] By adopting the technical solution of this embodiment, the power supply unit 70 can provide power to the control unit 50, the display unit 60 and the detection unit 30, so that the wireless use of the tire tread detection device 100 can be realized, and the use of the tire tread detection device 100 is more convenient. In addition, the charging unit 80 can replenish power to the power supply unit 70 in time, which is also convenient for the use of the tire tread detection device 100.

[0121] In some embodiments, the encoding reading unit 40, the control unit 50, the power supply unit 70 and the charging unit 80 are arranged in sequence along the length direction of the handheld housing 10. With this arrangement, the detection housing 20 has fewer components installed, and the volume and length of the detection housing 20 can be reduced to meet the tire detection needs of vehicles with lower chassis. In addition, with this arrangement, the tread tread detection device 100 has a compact structure, which facilitates the installation of components, helps to reduce the length of the tread tread detection device 100, and also facilitates the use of the tread tread detection device 100.

[0122] In some embodiments, the tire tread detection device 100 also includes a first electrical connector 102, the power supply unit 70 is located between the control unit 50 and the charging unit 80, the two ends of the first electrical connector 102 are electrically connected to the power supply unit 70 and the control unit 50 respectively, and the first electrical connector 102 is recessed to form a receiving space 1021, and the receiving space 1021 is used to accommodate the power supply unit 70.

[0123] The first electrical connector 102 may refer to a component capable of conducting electricity, such as a wire, a connecting cable, a conductive sheet, etc. The middle portion of the first electrical connector 102 may be in a U-shaped structure, thereby enclosing a receiving space 1021. The power supply unit 70 is located in the receiving space 1021, so that the first electrical connector 102 can bypass the power supply unit 70. The wiring of the tire tread detection device 100 is regular, which is conducive to improving the convenience of assembly.

[0124] In some embodiments, the tire tread detection device 100 further includes a heat insulating member 104, which is used to separate the first electrical connector 102 and the power supply unit 70. The heat insulating member 104 may refer to a component capable of heat insulation; for example, heat insulating glue, etc. At least a portion of the heat insulating member 104 is located between the first electrical connector 102 and the power supply unit 70 to separate the first electrical connector 102 and the power supply unit 70, reduce heat conduction between the first electrical connector 102 and the power supply unit 70, reduce the effect of power supply heating of the power supply unit 70 on the first electrical connector 102, and improve the reliability and service life of the tire tread detection device 100.

[0125] In some embodiments, the heat insulating member 104 is disposed around the outer peripheral wall of the power supply unit 70, and a portion of the heat insulating member 104 is located between the power supply unit 70 and the first electrical connector 102. The heat insulating member 104 is coated on the outer peripheral wall of the power supply unit 70, and can separate the power supply unit 70 from most of the components adjacent thereto, reduce the impact of the heat generated by the power supply unit 70 on the components adjacent thereto, and is beneficial to improving the reliability and service life of the tire tread detection device 100. The heat insulating member 104 can be an annular structure, or an annular structure with a notch, and the specific structure can be selected according to actual needs, wherein the heat insulating member 104 is located between the power supply unit 70 and the first electrical connector 102, so as to achieve heat insulation between the power supply unit 70 and the first electrical connector 102. In addition, the handheld housing 10 is used to accommodate a portion of the power supply unit 70 as a handheld portion, and the provision of the heat insulating member 104 can also improve the comfort of handheld use.

[0126] In other embodiments of the present application, see Figure 8 and Fig. 9 As shown, the detection unit 30 includes a photoelectric unit 31 and an image acquisition unit 32, which are installed on the detection housing 20. The photoelectric unit 31 is used to emit a light beam to project the light onto the tread; the image acquisition unit 32 is used to capture an image of the tread containing the light, and the image acquisition unit 32 is electrically connected to the control unit 50.

[0127] The photoelectric unit 31 may refer to a component capable of emitting a light beam toward the tread. The photoelectric unit 31 may be a laser, and the light beam is a laser beam. The image acquisition unit 32 may refer to a device capable of capturing images or videos, such as a camera.

[0128] When in use, the photoelectric unit 31 emits a light beam, and the light irradiates the tread; the image acquisition unit 32 acquires an image of the tread containing the light, and the image is fed back to the control unit 50, which recognizes the image, detects the tread based on the light in the image, and obtains parameter information of the tread, for example, information such as the depth and width of the tread.

[0129] For example, the image acquisition unit 32 is a black and white camera, and the photoelectric unit 31 is a laser. The laser light emitted by the laser and irradiated onto the tread can be clearly captured by the black and white camera, which is beneficial to improving the detection accuracy of the tread detection device 100.

[0130] By adopting the technical solution of this embodiment and utilizing the cooperation of the photoelectric unit 31 and the image acquisition unit 32 to detect the tread, parameter information of the tread can be obtained more accurately, which is beneficial to improving the accuracy of the tread detection result.

[0131] In some embodiments, the photoelectric unit 31 emits a light beam to illuminate the tread to form a strip of light, which can be parallel to the axis of the tire. In this way, the strip of light can cover multiple tread grooves, thereby performing synchronous detection of multiple tread grooves, which is beneficial to improving detection efficiency.

[0132] In some cases, the image acquisition unit 32 and the photoelectric unit 31 are arranged in parallel, so that the optical axis of the image acquisition unit 32 is parallel to the center line of the light beam, which results in low clarity of the image acquired by the image acquisition unit 32 and affects the detection accuracy of the tire tread detection device 100.

[0133] In other embodiments of the present application, see Figure 8 and 9 As shown, the lens of the image acquisition unit 32 is tilted toward the photoelectric unit 31 so that an angle α is formed between the optical axis of the image acquisition unit 32 and the center line of the light beam, wherein 0°<α≤60°.

[0134] The lens of the image acquisition unit 32 is tilted toward the photoelectric unit 31, which may mean that the image acquisition unit 32 is tilted toward the photoelectric unit 31 as a whole, and the lens of the image acquisition unit 32 is closer to the photoelectric unit 31 than other parts; it may also mean that the lens of the image acquisition unit 32 is tilted relative to the photoelectric unit 31, and other parts of the image acquisition unit 32 may also be arranged parallel or vertically relative to the photoelectric unit 31, etc.

[0135] The optical axis of the image acquisition unit 32 can refer to the axis of the lens. Fig. 9 The center line of the light beam can also refer to the axis of the photoelectric unit 31, which can be specifically referred to Fig. 9 The straight line M in .

[0136] By adopting the technical solution of this embodiment, the lens of the image acquisition unit 32 is tilted toward the photoelectric unit 31, so that the optical axis of the image acquisition unit 32 can intersect with the center line of the light beam, which is beneficial to improving the clarity of the image acquired by the image acquisition unit 32 and improving the detection accuracy of the tread detection device 100; in addition, the angle between the optical axis of the image acquisition unit 32 and the center line of the light beam is α, and 0°<α≤60°, which is beneficial to make the intersection of the optical axis of the image acquisition unit 32 and the center line of the light beam fall on the tread, so that the image acquisition unit 32 can obtain an image with better clarity, and better improve the detection accuracy of the tread detection device 100.

[0137] In some embodiments, the value of α can be, but is not limited to, 0.1°, 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 11°, 12°, 13°, 14°, 15°, 16°, 17°, 18°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°.

[0138] In other embodiments of the present application, see Fig.10 As shown, the detection head 21 has a contact surface 211 for contacting with the tread, and the contact surface 211 is provided with an anti-skid and weight-reducing structure 212 .

[0139] The abutting surface 211 may refer to the surface where the detection head 21 abuts against the tread. The abutting surface 211 may be the end surface of the detection housing 20 along the length direction. The shape of the abutting surface 211 may be adapted to the shape of the tread, so as to better fit the tread, and the stability of the detection unit 30 fixed relative to the tread is good, which is conducive to improving the accuracy of the detection structure; the shape of the abutting surface 211 may also be an arc cylinder, etc.

[0140] The anti-skid and weight-reducing structure 212 may refer to a structure in which the abutting surface 211 can play an anti-skid and weight-reducing role; for example, the anti-skid and weight-reducing structure 212 may refer to a groove set on the abutting surface 211, and the number of grooves may be one or more; of course, the anti-skid and weight-reducing structure 212 may also be other structures.

[0141] By adopting the technical solution of this embodiment, during detection, the abutment surface 211 abuts against the tread, and the anti-skid and weight-reducing structure 212 can increase the friction between the abutment surface 211 and the tread, thereby improving the stability of the detection unit 30 fixed relative to the tread, which is beneficial to improving the accuracy of the detection structure; the anti-skid and weight-reducing structure 212 can also reduce the weight of the detection head 21, making the detection of the tread detection equipment 100 more labor-saving and more convenient to operate.

[0142] In some embodiments, see Figure 4 and Figure 5As shown, the tire tread detection device 100 further includes a vibrator 107, which is electrically connected to the control unit 50. The control unit 50 is used to control the vibration of the vibrator 107 to remind the detection completion through the vibration of the vibrator 107 or to remind the detection personnel through vibration after pressing the button 106, so as to facilitate the use of the tire tread detection device 100. The vibrator 107 can be a vibration motor, a vibration sheet, etc.

[0143] In some embodiments, the detection housing 20 further includes a second connection portion 22 and a mounting portion 23, wherein the second connection portion 22 is connected between the detection head 21 and the mounting portion 23. The mounting portion 23 is used for mounting the detection unit 30, and serves as a mounting base for the detection unit 30; the detection head 21 is mounted at one end of the second connection portion 22, and the detection unit 30 is mounted at the other end of the second connection portion 22, and the detection unit 30 and the detection head 21 are staggered in a length direction perpendicular to the second connection portion 22, so as to reduce the risk of the detection head 21 blocking the position to be detected on the tread, so that the detection unit 30 can collect an image of the position to be detected.

[0144] In some embodiments, the photoelectric unit 31 and the image acquisition unit 32 are installed on the installation portion 23, and the photoelectric unit 31 and the image acquisition unit 32 are spaced apart on the side of the second connecting portion 22 so that the light beam emitted by the photoelectric unit 31 can be projected onto the tread, and the image acquisition unit 32 can also capture an image of the tread including the light.

[0145] In some embodiments, the mounting portion 23 is provided with a protective cover to protect the mounting portion 23 and the photoelectric unit 31 and the image acquisition unit 32 mounted on the mounting portion 23; the protective cover may be a rubber cover or the like.

[0146] In some embodiments, the end surface of the mounting portion 23 facing the detection head 21 is relative to the length direction of the second connecting portion 22 (see Figures 1 to 5 The photoelectric unit 31 can be arranged at an obtuse angle to the length direction of the second connecting portion 22, and the image acquisition unit 32 is perpendicular to the end face of the mounting portion 23 facing the detection head 21, so that the lens of the image acquisition unit 32 is inclined toward the photoelectric unit 31, and the end face of the mounting portion 23 facing the detection head 21 is used as the installation reference of the photoelectric unit 31 and the image acquisition unit 32, so that the angle α between the optical axis of the image acquisition unit 32 and the center line of the light beam can be controlled. This has a simple structure and is easier to manufacture, and can also accurately control the angle α between the optical axis of the image acquisition unit 32 and the center line of the light beam within a preset range.

[0147] In some embodiments, the second connection part 22 is inserted into the through hole of the first connection part 101 to achieve the connection between the handheld housing 10 and the detection housing 20. The first connection part 101 and the second connection part 22 are hollow inside, and the second electrical connection member 103 led out by the image acquisition unit 32 can enter the handheld housing 10 through the internal space of the second connection part 22, the opening on the second connection part 22 and the internal space of the first connection part 101 to be electrically connected to the control unit 50, thereby achieving internal wiring of the tire tread detection device 100. The second electrical connection member 103 can be a wire, a connecting cable, a conductive sheet, etc.

[0148] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A tire tread detection device for detecting the tread of a vehicle tire, characterized in that: The tire tread detection device comprises: Handheld housing; A detection housing is located on the side of the handheld housing along a direction perpendicular to the length of the detection housing; the detection housing includes a detection head, and the detection head is used for the tire tread detection device to be placed on the tire tread during measurement; A detection unit, disposed in the detection housing, for emitting a light beam to project the light onto the tread of the tire and collecting an image of the tread containing the light beam; a control unit, electrically connected to the detection unit, the control unit being used to receive the image collected by the detection unit and detect the tread according to the light in the image collected by the detection unit; A display unit, electrically connected to the control unit, and configured to display a detection result of the tire tread; A calibration unit is used to calibrate the tire tread detection device.

2. The tire tread detection device according to claim 1, characterized in that: The tread detection device also includes a code reading unit, which is used to collect an image of the code on the side of the tire, or collect an image of the vehicle information carried by the vehicle; the control unit is electrically connected to the code reading unit, and the control unit is used to receive the image collected by the code reading unit, identify the information in the image collected by the code reading unit, and parse the relevant information of the tire based on the image collected by the code reading unit.

3. The tire tread detection device according to claim 2, characterized in that: The code reading unit is arranged on the handheld housing.

4. The tire tread detection device according to any one of claims 1 to 3, characterized in that: The calibration unit comprises a positioning part and a calibration part, wherein the positioning part is used to position the detection head, and the calibration part has a calibration structure, and the calibration structure is used to match the tread of the tread to calibrate the tread detection device.

5. The tire tread detection device according to claim 4, characterized in that: The calibration structure comprises a plurality of calibration grooves, and at least two of the calibration grooves have different groove depths.

6. The tire tread detection device according to claim 4, characterized in that: The detection head and the positioning part are plugged and positioned, and / or the detection head and the positioning part are magnetically positioned.

7. The tire tread detection device according to any one of claims 1 to 3, characterized in that: The detection unit includes a photoelectric unit and an image acquisition unit, which are installed in the detection housing. The photoelectric unit is used to emit a light beam to project the light onto the tread; the image acquisition unit is used to acquire an image of the tread containing the light, and the image acquisition unit is electrically connected to the control unit.

8. The tire tread detection device according to claim 7, characterized in that: The lens of the image acquisition unit is tilted toward the photoelectric unit so that an angle is formed between the optical axis of the image acquisition unit and the center line of the light beam, and the angle is α, wherein 0°<α≤60°.

9. The tire tread detection device according to any one of claims 1 to 3, characterized in that: The detection head has a contact surface for contacting with the tread, and the contact surface is provided with an anti-skid and weight-reducing structure.

10. The tire tread detection device according to any one of claims 1 to 3, characterized in that: The tire tread detection device also includes a power supply unit and a charging unit, which are installed on the handheld housing, and the control unit, the display unit and the detection unit are all electrically connected to the power supply unit, and the power supply unit is used to supply power to the control unit, the display unit and the detection unit, and the charging unit is electrically connected to the control unit, and the charging unit is used to charge the power supply unit.

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