Handheld tire tread detection equipment

Abstract

The present application relates to the technical field of tire tread detection equipment, and provides a handheld tire tread detection equipment, including a shell, a charging plate, a battery, a main board and a wiring structure, wherein the battery, the main board and the battery are all accommodated in a accommodating cavity of the shell, the battery is located between the main board and the charging plate, and the main board is electrically connected to the battery; the wiring structure is located between the main board and the charging plate, the wiring structure is electrically connected to the main board and the charging plate, the wiring structure is formed with an avoidance cavity, and at least part of the battery is accommodated in the avoidance cavity; the wiring structure of the embodiment of the present application can be wired around the periphery of the battery, thereby effectively improving the tightness between the wiring structure and the battery, and the wiring layout of the wiring structure is optimized, thereby effectively improving the space utilization rate of the accommodating cavity inside the shell.

Description

Technical Field

[0001] The present application relates to the technical field of tire tread detection equipment, and in particular provides a handheld tire tread detection equipment. Background Art

[0002] The detection of car tire patterns is of great significance to the driving safety of automobiles. The depth, width and shape of the tire pattern affect the friction of the tire surface. Therefore, it is necessary to use detection equipment to regularly detect the car tire patterns.

[0003] The detection device includes a housing and a plurality of components contained in the housing, such as a main board, a battery, a charging board, etc. Since the space in the housing is limited, the layout and routing of components in the housing are technical problems that need to be solved urgently. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a handheld tire tread detection device, which can optimize the wiring layout inside the shell of the handheld tire tread detection device to improve the space utilization efficiency.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0006] An embodiment of the present application provides a handheld tire tread detection device, including a shell, a charging plate, a battery, a main board and a wiring structure, wherein a housing is formed inside the shell, a charging port is provided on the shell, and the charging plate is arranged in the charging port; the battery is accommodated in the housing chamber, the main board is accommodated in the housing chamber, the battery is located between the main board and the charging plate, and the main board is electrically connected to the battery; the wiring structure is located between the main board and the charging plate, the wiring structure is electrically connected to the main board and the charging plate, an avoidance chamber is formed on the wiring structure, and at least part of the battery is accommodated in the avoidance chamber.

[0007] Beneficial effects of the embodiments of the present application: The handheld tire tread detection device provided in the embodiments of the present application, by arranging the battery between the main board and the charging board, and then using a wiring structure to connect the charging board and the main board, so as to facilitate charging operations using the charging board; the wiring structure is arranged to form an avoidance cavity, so that at least part of the battery can be accommodated in the avoidance cavity, that is, the wiring structure can be wired around the periphery of the battery, thereby effectively improving the tightness between the wiring structure and the battery, and the wiring layout of the wiring structure is optimized, thereby effectively improving the space utilization rate of the internal accommodating cavity of the shell.

[0008] In some embodiments, the wiring structure includes a first connecting segment, a second connecting segment, and a third connecting segment connected in sequence, the first connecting segment is connected to the charging board, the third connecting segment is connected to the main board, and the second connecting segment is bent to form an avoidance cavity.

[0009] In some embodiments, the second connecting section includes a main body and a first bending portion and a second bending portion connected to opposite ends of the main body, the first bending portion, the main body and the second bending portion together form the avoidance cavity; the first bending portion is connected to the first connecting section, and the second bending portion is connected to the second connecting section.

[0010] In some embodiments, the shell includes an upper shell and a lower shell, and the upper shell and the lower shell together enclose the accommodating cavity; the first bending portion is offset toward the upper shell relative to the first connecting section, and the second bending portion is offset toward the upper shell relative to the second connecting section, so that the main body is arranged close to the upper shell.

[0011] In some embodiments, a mounting structure is disposed on the inner surface of the lower shell, and a positioning groove for clamping the battery is opened on the mounting structure.

[0012] In some embodiments, the upper shell is provided with a functional hole, and the functional hole is directly opposite to the mainboard.

[0013] In some embodiments, the upper shell includes a first shell portion and a second shell portion connected to each other, and the lower shell includes a third shell portion and a fourth shell portion connected to each other; the first shell portion and the third shell portion are combined to form a first accommodating space, and the second shell portion and the fourth shell portion are combined to form a second accommodating space, and the first accommodating space and the second accommodating space are combined to form the accommodating cavity; the battery and the charging board are accommodated in the first accommodating space, and at least part of the mainboard is accommodated in the second accommodating space.

[0014] In some embodiments, a first opening is formed at one end of the first shell portion facing away from the second shell portion, a second opening is formed at one end of the third shell portion facing away from the fourth shell portion, and the first opening and the second opening are combined to form the charging port.

[0015] In some embodiments, the width of the first housing portion is smaller than the width of the second housing portion, and the width of the third housing portion is smaller than the width of the fourth housing portion.

[0016] In some embodiments, a heat insulating layer is disposed on the surface of the battery, and the heat insulating layer is used to separate the battery and the second connecting section. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] 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 related technical descriptions 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 creative work.

[0018] Figure 1 A schematic diagram of the overall structure of a handheld tire tread detection device provided in an embodiment of the present application;

[0019] Figure 2 A schematic diagram of the internal structure of a handheld tire tread detection device provided in an embodiment of the present application;

[0020] Figure 3 for Figure 2 A local enlarged schematic diagram of point A;

[0021] Figure 4 A schematic diagram of the internal structure of the upper shell provided in an embodiment of the present application;

[0022] Figure 5 A schematic diagram of the structure of the wiring structure provided in an embodiment of the present application;

[0023] Figure 6 A schematic diagram of the internal structure of the lower shell provided in an embodiment of the present application.

[0024] Among them, the reference numerals in the figure are:

[0025] 100. Handheld tire tread detection equipment;

[0026] 10. Shell; 11. Accommodation cavity; 111. First accommodation space; 112. Second accommodation space; 12. Charging port; 121. First opening; 122. Second opening; 13. Upper shell; 1301. Functional hole; 131. First shell part; 132. Second shell part; 14. Lower shell; 141. Third shell part; 142. Fourth shell part; 15. Mounting structure; 151. Positioning groove;

[0027] 20. Charging board; 30. Battery; 40. Main board;

[0028] 50. Wiring structure; 51. First connecting section; 52. Second connecting section; 521. Main body; 522. First bending section; 523. Second bending section; 53. Third connecting section; 501. Avoidance cavity; 60. Heat insulation layer. DETAILED DESCRIPTION

[0029] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0030] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In this application, unless otherwise clearly specified and limited, the terms "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, 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 this application can be understood according to specific circumstances.

[0033] The detection of tire tread is of great significance to the driving safety of automobiles. The depth, width and shape of the tire tread affect the friction of the tire surface. Therefore, it is necessary to use detection equipment to regularly detect the tire tread. The detection equipment includes a shell and multiple components contained in the shell, such as a main board, a battery, a charging board and other structures. Due to the limited space in the shell, the layout and routing of components in the shell are technical problems that need to be solved urgently.

[0034] Based on the above considerations, in order to achieve the purpose of optimizing the wiring layout inside the shell of a handheld tire tread detection device to improve the efficiency of space utilization, a handheld tire tread detection device is designed. The battery is arranged between the main board and the charging board, and then the charging board and the main board are connected using a wiring structure to facilitate charging operations using the charging board; the wiring structure is bent to form an avoidance cavity, so that at least part of the battery can be accommodated in the avoidance cavity, that is, the wiring structure can be wired around the periphery of the battery, thereby effectively improving the closeness between the wiring structure and the battery, and the wiring layout of the wiring structure is optimized, thereby effectively improving the space utilization of the internal accommodating cavity of the shell.

[0035] Below, the handheld tire tread detection device of the present application will be further described according to specific embodiments.

[0036] Please refer to Figures 1 to 6 The embodiment of the present application provides a handheld tire tread detection device 100, including a shell 10, a charging plate 20, a battery 30, a main board 40 and a wiring structure 50. The shell 10 is provided with a housing cavity 11, the shell 10 is provided with a charging port 12, and the charging plate 20 is arranged in the charging port 12; the battery 30 is accommodated in the housing cavity 11, the main board 40 is accommodated in the housing cavity 11, the battery 30 is located between the main board 40 and the charging plate 20, and the main board 40 is electrically connected to the battery 30; the wiring structure 50 is located between the main board 40 and the charging plate 20, the wiring structure 50 is electrically connected to the main board 40 and the charging plate 20, the wiring structure 50 is formed with an avoidance cavity 501, and at least part of the battery 30 is accommodated in the avoidance cavity 501.

[0037] The housing 10 is used to accommodate the mainboard 40, the battery 30, the mainboard 40 and the wiring structure 50, etc. Optionally, the housing 10 includes but is not limited to a rectangular housing 10, a spherical housing 10, a special-shaped housing 10, etc. The housing 10 can be a metal housing, a plastic housing or a composite housing, etc.

[0038] The housing 10 is provided with a charging port 12. Optionally, the charging port 12 can be provided at any location of the housing 10, for example, in the middle region of the housing 10, or in the end region of the housing 10. The charging plate 20 is used to be arranged in the charging port 12, so that an external plug can be connected to the charging plate 20, and the internal battery 30 can be charged through the charging plate 20.

[0039] The wiring structure 50 refers to a flexible printed circuit board connection line. The wiring structure 50 is composed of a flexible substrate and a conductive line formed by chemical etching or laser stripping, and has the characteristics of being thin, soft, and bendable. Due to its flexible design, it can be used for a tortuous layout of the line.

[0040] The wiring structure 50 can be bent to form an avoidance cavity 501; optionally, the wiring structure 50 can be bent to form an arc structure, so that the inside of the arc structure forms the above-mentioned avoidance cavity 501; or, the wiring structure 50 can also be bent to form a multi-segment structure, and the avoidance cavity 501 is enclosed by the multi-segment structure.

[0041] By arranging the wiring structure 50 between the main board 40 and the charging board 20, and the wiring structure 50 can form an avoidance cavity 501 by bending and the like, compared with the method of using wires for electrical connection, the wiring structure 50 can organize the lines into one, and can be more closely fitted to the battery 30 by bending, thereby improving the utilization of space.

[0042] The handheld tire tread detection device 100 provided in the embodiment of the present application arranges the battery 30 between the main board 40 and the charging board 20, and then uses the wiring structure 50 to connect the charging board 20 and the main board 40, so as to facilitate the charging operation using the charging board 20; the wiring structure 50 is bent to form an avoidance cavity 501, so that at least a part of the battery 30 can be accommodated in the avoidance cavity 501, that is, the wiring structure 50 can be wired around the periphery of the battery 30, thereby effectively improving the tightness between the wiring structure 50 and the battery 30, and the wiring layout of the wiring structure 50 is optimized, thereby effectively improving the space utilization rate of the internal accommodating cavity 11 of the shell 10.

[0043] Please refer to Figures 1 to 6 In some embodiments, the wiring structure 50 includes a first connecting segment 51, a second connecting segment 52, and a third connecting segment 53 connected in sequence, the first connecting segment 51 is connected to the charging board 20, the third connecting segment 53 is connected to the main board 40, and the second connecting segment 52 is bent to form an avoidance cavity 501.

[0044] The first connecting section 51 and the third connecting section 53 are respectively used to connect the charging board 20 and the main board 40 to achieve electrical connection between the charging board 20 and the main board 40 .

[0045] The second connecting segment 52 is bent to form the avoidance cavity 501 ; optionally, the second connecting segment 52 can be bent to form an arc to form the avoidance cavity 501 ; or, the second connecting segment 52 can be bent to form a multi-segment structure to enclose the avoidance cavity 501 .

[0046] In this way, on the basis of using the first connecting segment 51 and the third connecting segment 53 to connect the charging board 20 and the main board 40 respectively to achieve electrical connection, the second connecting segment 52 located between the first connecting segment 51 and the third connecting segment 53 can be bent so that the second connecting segment 52 can be bent to form an avoidance cavity 501 for accommodating at least part of the battery 30, thereby improving the compactness of the arrangement between the wiring structure 50 and the battery 30.

[0047] Please refer to Figures 1 to 6 In some embodiments, the second connecting section 52 includes a main body 521 and a first bending portion 522 and a second bending portion 523 connected to opposite ends of the main body 521. The first bending portion 522, the main body 521 and the second bending portion 523 enclose a avoidance cavity 501; the first bending portion 522 is connected to the first connecting section 51, and the second bending portion 523 is connected to the second connecting section 52.

[0048] The first bending portion 522 and the second bending portion 523 are respectively connected to two opposite ends of the main body 521 ; the first bending portion 522 and the second bending portion 523 are bent relative to the main body 521 .

[0049] For example, in some embodiments, the first bend portion 522, the main body 521, and the second bend portion 523 may all be in a strip-shaped sheet structure, the first bend portion 522 and the second bend portion 523 are respectively at opposite ends of the main body 521 and face the same direction, and the first bend portion 522 and the second bend portion 523 are respectively substantially perpendicular to the main body 521; thus, the first bend portion 522, the main body 521, and the second bend portion 523 enclose a U-shaped structure, and the inner area enclosed by the first bend portion 522, the main body 521, and the second bend portion 523 is the avoidance cavity 501. Among them, the battery 30 may be a cylindrical battery 30, the battery 30 may be partially inserted into the avoidance cavity 501, and the two ends of the battery 30 in the axial direction may face the first bend portion 522 and the second bend portion 523, respectively.

[0050] With such arrangement, the second connecting section 52 can be bent to form a first bending portion 522, a main body portion 521 and a second bending portion 523, and the first bending portion 522, the main body portion 521 and the second bending portion 523 are used to enclose a avoidance cavity 501 to accommodate at least part of the battery 30, thereby effectively improving the compactness of the arrangement.

[0051] Please refer to Figures 1 to 6 In some embodiments, the shell 10 includes an upper shell 13 and a lower shell 14, which together enclose a accommodating cavity 11; the first bending portion 522 is offset toward the upper shell 13 relative to the first connecting section 51, and the second bending portion 523 is offset toward the upper shell 13 relative to the second connecting section 52, so that the main body 521 is arranged close to the upper shell 13.

[0052] Among them, the shell 10 includes an upper shell 13 and a lower shell 14. When the upper shell 13 and the lower shell 14 are enclosed and connected to form an integral shell 10, a accommodating cavity 11 is enclosed between the upper shell 13 and the lower shell 14, so that the charging plate 20, the main board 40, the battery 30 and the wiring structure 50 can be accommodated between the upper shell 13 and the lower shell 14.

[0053] The upper shell 13 and the lower shell 14 can be connected and fixed by fasteners to form a whole; or, the upper shell 13 and the lower shell 14 can be connected and formed into a whole by means of snaps or the like.

[0054] The first bending portion 522 and the second bending portion 523 are both offset toward the upper shell 13, so that the first bending portion 522, the main body 521 and the second bending portion 523 can enclose and form a avoidance cavity 501 with the opening direction facing the lower shell 14. Therefore, the battery 30 can be assembled on the lower shell 14, and the main board 40 and the charging board 20 are respectively assembled at the opposite ends of the battery 30, and then the first connecting section 51 is used to connect to the charging board 20, and the second connecting section 52 is used to connect to the main board 40. At this time, the main body 521 will be located between the battery 30 and the upper shell 13, and the first bending portion 522 and the second bending portion 523 are respectively located on the opposite sides of the battery 30, so that at least part of the battery 30 is accommodated in the avoidance cavity 501; the main body 521, the first bending portion 522 and the second bending portion 523 can be respectively close to different sides of the battery 30, so as to achieve a close arrangement between the battery 30 and the wiring structure 50.

[0055] Please refer to Figures 1 to 6 In some embodiments, a mounting structure 15 is disposed on the inner surface of the lower shell 14 , and a positioning groove 151 for clamping the battery 30 is opened on the mounting structure 15 .

[0056] The mounting structure 15 includes but is not limited to a mounting plate, a mounting bracket, a mounting bump, etc. The mounting structure 15 has a positioning groove 151 , so that the battery 30 can be clamped in the positioning groove 151 , so as to facilitate the fixed assembly of the battery 30 relative to the lower shell 14 .

[0057] For example, in some embodiments, the mounting structure 15 can be a mounting plate, and a plurality of mounting plates can be arranged in sequence and at intervals between the main board 40 and the circuit board, and a positioning groove 151 is provided on the mounting plate; thus, the battery 30 can be positioned and inserted in the positioning groove 151 for easy positioning and assembly. At the same time, the mounting plate can also serve as a reinforcement structure of the lower shell 14 to improve the structural strength of the lower shell 14.

[0058] Please refer to Figures 1 to 6 In some embodiments, the upper shell 13 is provided with a functional hole 1301 , and the functional hole 1301 is directly opposite to the mainboard 40 .

[0059] The function hole 1301 is used for assembling other components. For example, the function hole 1301 can accommodate various components such as buttons and indicator lights. For example, the function hole 1301 is used to accommodate buttons, and the buttons can be connected to the mainboard 40, for example, to control the switch of the circuit or the switching of other functions.

[0060] Please refer to Figures 1 to 6 In some embodiments, the upper shell 13 includes a first shell portion 131 and a second shell portion 132 connected to each other, and the lower shell 14 includes a third shell portion 141 and a fourth shell portion 142 connected to each other; the first shell portion 131 and the third shell portion 141 are combined to form a first accommodating space 111, and the second shell portion 132 and the fourth shell portion 142 are combined to form a second accommodating space 112, and the first accommodating space 111 and the second accommodating space 112 are combined to form a accommodating cavity 11; the battery 30 and the charging plate 20 are accommodated in the first accommodating space 111, and at least part of the mainboard 40 is accommodated in the second accommodating space 112.

[0061] The first shell portion 131 and the third shell portion 141 are combined to form a first accommodating space 111, and the second shell portion 132 and the fourth shell portion 142 are combined to form a second accommodating space 112; that is, the accommodating cavity 11 is divided into a first accommodating space 111 and a second accommodating space 112. The first accommodating space 111 is used to accommodate a relatively small battery 30 and a charging plate 20, and the second accommodating space 112 is used to accommodate a relatively large motherboard 40, so as to more reasonably allocate space, further improve the space utilization of the accommodating cavity 11, and achieve the purpose of reducing the overall volume.

[0062] Please refer to Figures 1 to 6 In some embodiments, a first opening 121 is formed at one end of the first shell portion 131 facing away from the second shell portion 132 , and a second opening 122 is formed at one end of the third shell portion 141 facing away from the fourth shell portion 142 . The first opening 121 and the second opening 122 are combined to form a charging port 12 .

[0063] The first opening 121 and the second opening 122 are combined to form the charging port 12 , so that during the disassembly and assembly of the first shell portion 131 and the second shell portion 132 , the charging port 12 can be opened or assembled synchronously to facilitate the disassembly and assembly and maintenance of the charging plate 20 in the charging port 12 .

[0064] The first opening 121 is opened at the end of the first shell portion 131 facing away from the second shell portion 132, and the second opening 122 is opened at the end of the third shell portion 141 facing away from the fourth shell portion 142; thus, the charging port 12 is located at the ends of the first shell 10 and the third shell 10. Compared with the design in which the charging port 12 is located in the middle area, the charging port 12 located at the end can be more convenient for plug-in charging operations.

[0065] Please refer to Figures 1 to 6In some embodiments, the width of the first shell portion 131 is smaller than the width of the second shell portion 132 , and the width of the third shell portion 141 is smaller than the width of the fourth shell portion 142 .

[0066] Among them, the width of the first shell portion 131, the width of the second shell portion 132, the width of the third shell portion 141 and the width of the fourth shell portion 142 refer to a direction perpendicular to the direction from the first shell portion to the second shell portion, and a direction perpendicular to the direction from the first shell portion to the third shell portion.

[0067] The first housing portion 131 and the third housing portion 141 enclose the first accommodation space 111 to accommodate the smaller battery 30 and the charging board 20; the second housing portion 132 and the fourth housing portion 142 enclose the second accommodation space 112 to accommodate the larger motherboard 40. Thus, the width of the first housing portion 131 is smaller than the width of the second housing portion 132, and the width of the third housing portion 141 is smaller than the width of the fourth housing portion 142, so that the volume of the first accommodation space 111 is smaller than the volume of the second accommodation space 112; therefore, the smaller battery 30 and the charging board 20 are accommodated in the smaller first accommodation space 111, and the larger motherboard 40 is accommodated in the larger second accommodation space 112.

[0068] With such a configuration, the space utilization rate of the first accommodating space 111 and the second accommodating space 112 is higher, and the overall volume of the housing 10 is effectively reduced.

[0069] Please refer to Figures 1 to 6 In some embodiments, a heat insulating layer 60 is disposed on the surface of the battery 30 , and the heat insulating layer 60 is used to separate the battery 30 and the second connecting section 52 .

[0070] Optionally, the heat insulating layer 60 includes but is not limited to a polyimide layer, a polytetrafluoroethylene layer, a ceramic layer, etc. The heat insulating layer 60 is used to reduce the influence of the heat generated by the battery 30 during operation on the second connecting section 52 .

[0071] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A handheld tire tread detection device, characterized in that: include: A housing, wherein a receiving cavity is formed inside the housing and a charging port is provided on the housing; A charging plate, the charging plate is arranged in the charging port; A battery, the battery being accommodated in the accommodation cavity; A mainboard, the mainboard is accommodated in the accommodating cavity, the battery is located between the mainboard and the charging board, and the mainboard is electrically connected to the battery; as well as A wiring structure, wherein the wiring structure is located between the main board and the charging board, the wiring structure is electrically connected to the main board and the charging board, and the wiring structure forms an avoidance cavity, wherein at least a portion of the battery is accommodated in the avoidance cavity.

2. The handheld tire tread detection device according to claim 1, characterized in that: The wiring structure includes a first connecting section, a second connecting section and a third connecting section which are connected in sequence, the first connecting section is connected to the charging board, the third connecting section is connected to the main board, and the second connecting section is bent to form an avoidance cavity.

3. The handheld tire tread detection device according to claim 2, characterized in that: The second connecting section includes a main body and a first bending portion and a second bending portion connected to opposite ends of the main body, the first bending portion, the main body and the second bending portion together form the avoidance cavity; the first bending portion is connected to the first connecting section, and the second bending portion is connected to the second connecting section.

4. The handheld tire tread detection device according to claim 3, characterized in that: The housing comprises an upper shell and a lower shell, and the upper shell and the lower shell together enclose the accommodating cavity; The first bending portion is offset relative to the first connecting section toward the upper shell, and the second bending portion is offset relative to the second connecting section toward the upper shell, so that the main body is disposed close to the upper shell.

5. The handheld tire tread detection device according to claim 4, characterized in that: A mounting structure is arranged on the inner surface of the lower shell, and a positioning groove for clamping the battery is opened on the mounting structure.

6. The handheld tire tread detection device according to claim 4, characterized in that: The upper shell is provided with a functional hole, and the functional hole is directly opposite to the mainboard.

7. The handheld tire tread detection device according to claim 4, characterized in that: The upper shell includes a first shell portion and a second shell portion connected to each other, and the lower shell includes a third shell portion and a fourth shell portion connected to each other; The first housing portion and the third housing portion are combined to form a first accommodation space, the second housing portion and the fourth housing portion are combined to form a second accommodation space, and the first accommodation space and the second accommodation space are combined to form the accommodation cavity; The battery and the charging board are accommodated in the first accommodation space, and at least a part of the main board is accommodated in the second accommodation space.

8. The handheld tire tread detection device according to claim 7, characterized in that: A first opening is formed at one end of the first shell portion facing away from the second shell portion, and a second opening is formed at one end of the third shell portion facing away from the fourth shell portion. The first opening and the second opening are combined to form the charging port.

9. The handheld tire tread detection device according to claim 7, characterized in that: The width of the first housing portion is smaller than that of the second housing portion, and the width of the third housing portion is smaller than that of the fourth housing portion.

10. The handheld tire tread detection device according to any one of claims 2 to 9, characterized in that: A heat insulation layer is provided on the surface of the battery, and the heat insulation layer is used to separate the battery and the second connecting section.

Images