Multi-jack socket detection device for heavy truck

Abstract

The utility model discloses a heavy truck multi-jack socket detection device, which belongs to the technical field of detection tools, and comprises a detection plate and a multi-jack socket connector used for being matched and plugged with a multi-jack socket, and the detection plate is provided with a control module and a detection module connected with the control module; the detection module comprises a plurality of detection branches, and after the multi-jack socket is connected with the multi-jack socket connector in an inserted mode, each plug of the multi-jack socket is connected with one detection branch through a wire. All the detection branches are respectively connected with the control module; the device further comprises a display module and / or an indication module which are / is connected with the control module and used for displaying the detection result. According to the invention, the detection of the vehicle lamp group circuit can be rapidly completed, the problems of missing detection and repeated detection can be avoided, the labor intensity can be reduced, and the detection efficiency can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of testing tool technology, specifically a testing device for multi-hole sockets in heavy trucks. Background Technology

[0002] Heavy-duty trucks (HTLs), also known as heavy-duty freight vehicles, refer to freight vehicles with a total vehicle and cargo mass of 14 tons or more, or semi-trailer tractors used for traction. They are characterized by: large load capacity: Heavy-duty trucks are typically used to transport large quantities of goods, with large cargo box volumes and load capacities often exceeding hundreds or even thousands of tons. This makes them indispensable transportation tools in logistics, engineering construction, and other fields. Powerful engines: To cope with complex road and load conditions, heavy-duty trucks are usually equipped with high-powered engines to ensure smooth operation under various conditions. High safety: Due to their large load capacity and inertia, heavy-duty trucks are typically equipped with a series of safety features to ensure traffic safety, such as rollover protection frames and anti-lock braking systems (ABS). High driving difficulty: The large size and inertia of heavy-duty trucks require high levels of driving skill and reaction time from the driver, thus requiring significant expertise and experience to operate.

[0003] Currently, most NX / MAX models lack a smart multi-hole socket testing device. This multi-hole socket is a function reserved by the trailer manufacturer and is generally a seven-hole socket. The seven functions are brake light, fog light, left turn signal, right turn signal, position light, reversing light, and ground wire. At present, the NX / MAX model test line uses a multimeter to measure the functions of the seven-hole socket one by one. The manual measurement is labor-intensive and often results in missed measurements and measurement errors. Utility Model Content

[0004] To address the problem of tedious and error-prone testing of vehicle lights one by one, this invention provides a multi-hole socket testing device for heavy-duty trucks.

[0005] This utility model is achieved through the following technical solution:

[0006] A heavy-duty truck multi-socket testing device includes a testing board and a multi-socket connector for mating with the multi-socket. The testing board is equipped with a control module and a testing module connected to the control module. The testing module includes multiple testing branches. After the multi-socket is plugged into the multi-socket connector, each plug of the multi-socket is connected to a testing branch via a wire. All testing branches are connected to the control module. The device also includes a display module and / or an indicator module connected to the control module for displaying testing results.

[0007] In this device, each plug of the multi-hole socket corresponds to a unique test branch. As long as the socket is plugged in correctly, a comprehensive test can be performed on all the circuits corresponding to all the plugs in the socket, without missing any functional circuits, thus ensuring the completeness of the test.

[0008] This device presents the test results visually through a display module and / or an indicator module. The display module clearly shows whether each functional circuit is functioning normally, while the indicator module uses indicator lights and other intuitive methods to indicate the test status.

[0009] A further improvement of this invention is that each detection branch includes two resistors connected in series; the connection point of the two resistors in each detection branch is connected to the control module.

[0010] The detection board is also equipped with a signal input connector. The first end of each detection branch is connected to an input terminal of the signal input connector. Each output terminal of the signal input connector is connected to a hole of the multi-hole socket connector through a wire. The second end of each detection branch is grounded.

[0011] A further improvement of this utility model is that the device also includes a connector protective shell, a multi-hole socket connector is disposed at one end of the connector protective shell, and a detection board protective shell is connected to the other end of the connector protective shell. The detection board is installed inside the detection board protective shell. The signal input connector is electrically connected to the multi-hole socket connector by passing through the detection board protective shell and the connector protective shell in sequence with a wire.

[0012] A further improvement of this utility model is that the multi-hole socket connector is embedded in the end of the connector protective shell facing away from the detection plate protective shell; the side of the detection plate protective shell facing away from the connector protective shell is recessed to form an installation chamber, and each of the four corners of the installation chamber has a second screw hole for fixing the detection plate with a second bolt. A wire-passing hole is provided on the side wall of the installation chamber corresponding to the middle of the connector protective shell, allowing wires to pass through to connect the multi-hole socket connector to the detection plate.

[0013] The connector protective shell and the test board protective shell are detachably connected. The mounting chamber provides space for the test board, which is secured inside the mounting chamber by a second bolt, providing peripheral protection for the devices on the test board.

[0014] A further improvement of this utility model is that the connector protective shell includes an upper shell and a lower shell, which are assembled to form a structure that clamps the multi-hole socket connector; a fourth screw hole is provided on the detection plate protective shell on one side of the wire hole, the fourth screw hole connects the mounting chamber and the internal space of the connector protective shell, and a fourth bolt is provided in the fourth screw hole; a limiting platform is provided on the inner wall of the lower shell to allow the fourth bolt to pass through, and a fastening nut that can lock the fourth bolt is provided on the side of the limiting platform away from the detection plate protective shell, so as to realize the connection between the detection plate protective shell and the lower shell.

[0015] A further improvement of this invention is that at least one locking protrusion is provided on the opposite edges of the upper and lower housings, and the locking protrusions of the upper housing correspond to those of the lower housing; a third screw hole is provided on each locking protrusion, and the two opposite locking protrusions are connected by a third bolt. The upper and lower housings are locked together by the third bolt, which helps to improve the assembly convenience between the multi-hole socket connector and the detection board.

[0016] Both the upper and lower housings have an integrally arc-shaped compensation section at the end near the detection board protective shell, which can contact the detection board protective shell. The compensation section helps to increase the contact area of ​​the upper and lower housings near the detection board protective shell, thereby improving the connection stability between the connector protective shell and the detection board protective shell.

[0017] A further improvement of this invention is that a protective cover, made of transparent material, is installed on the protective shell of the detection plate to cover the installation chamber. The transparent cover allows for timely observation of the indicator lights on the detection plate.

[0018] A further improvement of this utility model is that the protective cover has first screw holes b at its four corners, and the detection plate protective shell has first screw holes a corresponding to the first screw holes b. The protective cover is installed on the detection plate protective shell by passing the first screw holes b and the first screw holes a through the first bolts in sequence.

[0019] A further improvement of this utility model is that the control module includes a control chip or a control switch;

[0020] When the control module includes a control chip, the device also includes a power module. The detection board is also equipped with a Bluetooth module connected to the control chip for sending detection results to the outside. The power module is connected to the Bluetooth module and the control module respectively via a power switch.

[0021] When the control chip detects a high level, its UART serial port communicates with the Bluetooth module, transmitting the detection result information to the Bluetooth module via the UART serial port, and then transmitting it to an external terminal device via the Bluetooth module.

[0022] As can be seen from the above technical solution, the beneficial effects of this utility model are: This testing device is connected to a multi-hole socket through a multi-hole socket connector. Each plug of the multi-hole socket can be automatically connected to the corresponding testing branch to complete the testing of each line. There is no need for manual point-by-point measurement. The debugging personnel only need to connect the plug, turn on the corresponding testing branch, and wait for the test results. This helps to quickly complete the testing of vehicle lamp assembly lines, avoid the problems of missed detection and repeated testing, reduce labor intensity, and improve testing efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A connection block diagram of an embodiment of the present invention is provided.

[0025] Figure 2 This is a circuit connection diagram of the control chip in an embodiment of this utility model.

[0026] Figure 3 This is a first structural schematic diagram of a specific embodiment of the present utility model.

[0027] Figure 4 This is a second structural schematic diagram of a specific embodiment of the present utility model.

[0028] Figure 5 This is a schematic diagram of the first exploded structure of a specific embodiment of the present invention.

[0029] Figure 6 This is a schematic diagram of the second explosive structure of a specific embodiment of the present invention.

[0030] Figure 7 A connection block diagram of the device provided for another embodiment of this utility model.

[0031] In the attached diagram: 10. Detection plate protective shell; 11. Mounting chamber; 12. First screw hole a; 13. Second screw hole; 14. Wire hole; 20. Protective cover; 21. First screw hole b; 22. First bolt; 30. Power switch; 40. Connector protective shell; 41. Upper shell; 42. Lower shell; 43. Locking protrusion; 44. Limiting platform; 45. Compensation part; 50. Seven-hole socket connector; 51. Third screw hole; 60. Fourth bolt; 70. Detection plate; 71a. First control switch; 71b. Second control switch; 71c. Third control switch; 71d. Fourth control switch; 71e. Fifth control switch; 71f. Sixth control switch; 7 1g, Seventh Control Switch; 72, Detection Module; 721a, First Detection Branch; 721b, Second Detection Branch; 721c, Third Detection Branch; 721d, Fourth Detection Branch; 721e, Fifth Detection Branch; 721f, Sixth Detection Branch; 73, Indicator Module; 731a, Left Turn Light Indicator; 731b, Brake Light Indicator; 731c, Right Turn Light Indicator; 731d, Reversing Light Indicator; 731e, Fog Light Indicator; 731f, Position Light Indicator; 731g, Ground Wire Indicator; 74, Bluetooth Module; VCC, Power Module; U1, Control Chip; U2, Bluetooth Chip; U4, Signal Input Connector. Detailed Implementation

[0032] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] This utility model provides a detection device for multi-hole sockets on heavy-duty trucks. In this embodiment, the multi-hole socket is a seven-hole socket.

[0034] like Figure 1 and Figure 6 As shown, in this embodiment, the device includes a detection board 70 and a seven-hole socket connector 50 for mating with a seven-hole socket. The detection board 70 is provided with a control module and a detection module 72 connected to the control module.

[0035] Correspondingly, the seven plugs of the seven-hole socket include six lines to be tested and one ground wire; the detection module 72 includes six detection branches. After the seven-hole socket is plugged into the seven-hole socket connector 50, each plug of the seven-hole socket is connected to a detection branch through a wire; all detection branches are connected to the control module respectively.

[0036] Each detection branch includes two resistors connected in series; the connection point of the two resistors in each detection branch is connected to the control module; the control module includes a control chip U1.

[0037] The multi-port socket receives a first voltage through one of its signal input connectors. This first voltage passes through a first resistor and a second resistor, resulting in a high-level signal to the control chip. When the control chip detects this high level, it displays the signal through the display module and / or outputs a high-level signal to illuminate an indicator light. Here, the indicator module includes the indicator light. Since each detection branch is connected to an input pin of the control chip, when the control chip controls the display module to display the signal, the display module shows the control chip's input pin number. The wiring is pre-configured to specify which detection branch each input pin is connected to. When the control chip illuminates an indicator light, each detection branch corresponds to one indicator light.

[0038] In this embodiment of the invention, an STC89C52RC-40I-PDIP40 control chip U1 is selected. The control chip includes a reset circuit, a crystal oscillator circuit, and a switching circuit. Correspondingly, the device also includes a power supply module VCC to power the control chip and the configured circuits. For details, please refer to... Figure 2 The detection module circuit consists of a voltage divider circuit with six 5KΩ resistors and a pull-down circuit with six 1KΩ resistors. An 11.0592MHz crystal oscillator and two 18pF filter capacitors form the crystal oscillator circuit. A 104-type filter capacitor is used in the power supply module to ensure power stability. Two 2.54-1*20P straight-pin headers, J1 and J2, are used to connect the external Bluetooth module and the detection module. An SW1 push-button switch, a 100nF capacitor, and a 10KΩ resistor form the reset circuit for the control chip. A KF128-2.54-8P signal input connector is used to connect to the wiring harness of the seven-hole socket and the power module's VCC.

[0039] The detection board also includes a Bluetooth module 74 connected to the control module for sending detection results to an external device; the power module VCC is also connected to the Bluetooth module 74 via a power switch. A VG6328A Bluetooth chip U2 can be used in conjunction with the control chip U1. When the P0 port of the control chip U1 is configured as an input using existing technology, pins P0.0-P0.6 of the P0 port serve as input pins. When the P1 port of the control chip U1 is configured as an output using existing technology, pins P1.0-P1.6 of the P1 port serve as output pins. Simultaneously, the input at P0.0 corresponds to the output at P1.0, and so on, with the input at P0.6 corresponding to the output at P1.6. Each of the P1.0-P1.6 output pins is connected to an indicator light via a current-limiting resistor.

[0040] The detection board 70 is also equipped with a signal input connector U4. The first end of each detection branch is connected to an input terminal of the signal input connector U4, and the second end of each detection branch is grounded. Each output terminal of the signal input connector U4 is connected to a wire, and the end of the wire away from the signal input connector U4 is provided with a U-shaped connection terminal. Since the seven-hole socket is a round male socket, the corresponding seven-hole socket connector 50 is a female connector and is cylindrical in shape. The cylinder is provided with a through hole from top to bottom. When the cylinder is inserted, the side of the cylinder away from the seven-hole socket is provided with a third screw hole 51 communicating with the through hole (e.g., ...). Figure 6 As shown), the sockets correspond one-to-one with the third screw hole 51. After the seven-hole socket and the seven-hole socket connector are plugged in, the U-shaped connecting terminal of each wire is inserted into the socket of the seven-hole socket connector. The bolt, through the third screw hole 51, presses the U-shaped connecting terminal of the wire to the plug of the inserted seven-hole socket, ensuring full contact between the wire and the plug of the seven-hole socket. After the power is turned on, the wire can transmit the voltage through the plug of the seven-hole socket to the detection board. When the power switch is turned on, the 5V voltage of the power module VCC is supplied to the Bluetooth module and the control chip respectively. Each plug of the seven-hole socket receives a 24V voltage from the KF128-2.54-8P through the wires. The 24V voltage passes through a 5KΩ resistor voltage divider circuit and a 1KΩ resistor pull-down circuit. Figure 2The pins of port P0 can detect a high level of 2.5V-4V. At this time, the voltage of the left turn signal circuit is connected to input pin P0.1 via the first detection branch 721a, and the corresponding output of P1.1 indicates the detection status of the left turn signal circuit by lighting the connected left turn signal indicator 731a. The voltage of the brake light circuit is connected to input pin P0.2 via the second detection branch 721b, and the corresponding output of P1.2 indicates the detection status of the brake light circuit by lighting the connected brake light indicator 731b. The voltage of the right turn signal circuit is connected to input pin P0.3 via the third detection branch 721c, and the corresponding output of P1.3 indicates the detection status of the right turn signal circuit by lighting the connected right turn signal indicator 731c. The voltage of the right turn signal circuit is connected to input pin P0.4 via the fourth detection branch 721d. The voltage of the reversing light circuit is output through P1.4, which indicates the reversing light circuit detection status by illuminating the connected reversing light indicator 731d. The voltage of the fog light circuit is connected to the input pin P0.5 through the fifth detection branch 721e, and the fog light circuit detection status is indicated by illuminating the connected fog light indicator 731e. The voltage of the position light circuit is connected to the input pin P0.6 through the sixth detection branch 721f, and the position light circuit detection status is indicated by illuminating the connected position light indicator 731f. The voltage of the ground wire is connected to the input pin P0.7, and the ground wire detection status is indicated by illuminating the connected ground wire indicator 731g. Under normal conditions, the ground wire indicator 731g is normally closed.

[0041] In addition, when the control chip detects a high level, the serial port communicates with the Bluetooth module at a baud rate of 9600. The control chip transmits the communication information to the Bluetooth module through the UART serial port, and the Bluetooth module transmits the information to the external terminal through the antenna for result display.

[0042] In some embodiments, to ensure the seven-hole socket connector is fully conductive, a conductive layer is provided on the wall of the through-hole of the seven-hole socket connector. The U-shaped connecting terminal of the wire can be connected using the method described in the above embodiments. Alternatively, the U-shaped connecting terminal of the wire can be inserted into the through-hole of the seven-hole socket connector, and a bolt connects the U-shaped connecting terminal of the wire to the conductor layer on the inner wall of the through-hole through a third screw hole. In this case, when the plug of the seven-hole socket is inserted into the through-hole of the seven-hole socket connector, it must make full contact with the conductive layer of the through-hole, so that the electricity from the plug of the seven-hole socket is transmitted to the detection board through the conductive layer and the wire, completing the circuit detection.

[0043] In some embodiments, combined with Figure 5 and Figure 6The device also includes a connector protective shell 40, a seven-hole socket connector 50 disposed at one end of the connector protective shell 40, and a detection board protective shell 10 connected to the other end of the connector protective shell 40. The detection board is installed inside the detection board protective shell 10. The signal input connector is electrically connected to the seven-hole socket connector 50 by passing through the detection board protective shell 10 and the connector protective shell 40 in sequence with wires.

[0044] The connector protective shell 40 and the test board protective shell 10 are detachably connected. The connector protective shell 40 is generally cylindrical, and the seven-hole socket connector 50 is embedded in the end of the connector protective shell 40 away from the test board protective shell 10. The connector protective shell 40 includes an upper shell 41 and a lower shell 42, which are assembled to form a structure that clamps the seven-hole socket connector 50. That is, the upper shell 41 and the lower shell 42 are both assembled into a cylindrical arc structure, which clamps the seven-hole socket connector 50. The test chip is electrically connected to the seven-hole socket connector 50 by passing wires through the test board protective shell 10 and the connector protective shell 40 in sequence. A wire-passing hole 14 is provided on the side wall of the mounting chamber 11 corresponding to the middle of the connector protective shell 40. The wire-passing hole 14 allows the wires to pass through to connect the seven-hole socket connector 50 and the test chip. The wire-passing hole 14 on the test board protective shell 10 facilitates the wire connection between the test chip and the seven-hole socket connector 50.

[0045] The seven-hole socket connector 50, which is compatible with the reserved seven-hole socket, helps to quickly complete the inspection of vehicle lamp assembly, avoids the problems of missed inspection and repeated inspection, reduces labor intensity and improves inspection efficiency.

[0046] The test board protective shell 10 has an inwardly recessed mounting chamber 11 on the side opposite to the connector protective shell 40. The mounting chamber 11 has four corners with second screw holes 13 for securing the test chip with second bolts. The mounting chamber 11 provides space for the test chip, which is then fastened inside by the second bolts, providing peripheral protection.

[0047] The protective cover 10 of the test board is equipped with a protective shield 20 that covers the installation chamber 11. The protective shield 20 is made of transparent material. The transparent protective shield 20 can improve the protection range of the test chip and at the same time allow for timely observation of the indicator lights on the test chip. The protective shield 20 has first screw holes b21 at its four corners, and the protective cover 10 of the test board has first screw holes a12 that correspond to the first screw holes b21. The protective shield 20 is installed on the protective cover 10 of the test board by first bolts 22 passing through the first screw holes b21 and the first screw holes a12 in sequence.

[0048] The protective cover 20 is equipped with a power switch 30, which is electrically connected to the battery mounted on the test chip via a wire. The power switch 30 enables the detection device to be turned on and off. The battery mounted on the test chip is a rechargeable battery, which has a reserved charging port through the protective shell 10 of the detection board, which helps to reduce the cumbersome operation of battery replacement.

[0049] At least one locking protrusion 43 is provided on the opposite edges of the upper housing 41 and the lower housing 42, and the locking protrusion 43 of the upper housing 41 corresponds to the locking protrusion 43 of the lower housing 42. A third screw hole is provided on each locking protrusion 43, and the two opposing locking protrusions 43 are connected by a third bolt. The upper housing 41 and the lower housing 42 are locked together by the third bolt, which helps to improve the ease of assembly between the seven-hole socket connector 50 and the test chip. A distance is reserved between the locking protrusion 43 near the seven-hole socket connector 50 and the seven-hole socket connector 50 for the connector protective shell 40 to be inserted into the reserved seven-hole socket, avoiding obstruction and interference.

[0050] Both the upper housing 41 and the lower housing 42 have an arc-shaped compensation portion 45 at one end near the detection board protective shell 10, which can contact the detection board protective shell 10. The compensation portion 45 helps to increase the contact area of ​​the upper housing 41 and the lower housing 42 near the detection board protective shell 10, thereby improving the connection stability between the connector protective shell 40 and the detection board protective shell 10.

[0051] A fourth screw hole is provided on the detection plate protective shell 10 on one side of the wire hole 14. The fourth screw hole connects the mounting chamber 11 and the internal space of the connector protective shell 40, and a fourth bolt 60 is provided in the fourth screw hole. A limiting platform 44 is provided on the inner wall of the lower shell 42 to allow the fourth bolt 60 to pass through. A fastening nut that can lock the fourth bolt 60 is provided on the side of the limiting platform 44 away from the detection plate protective shell 10, so as to realize the connection between the detection plate protective shell 10 and the lower shell 42. The structural views of this device in two directions are as follows. Figure 3 and Figure 4 As shown.

[0052] Unlike the above embodiments, in this embodiment, the control module is a control switch, specifically seven control switches, numbered from the first to the seventh control switch. These are manual control switches. Each plug in the seven-hole socket receives a 24V voltage from the KF128-2.54-8P sensor via a wire. This 24V voltage passes through a corresponding detection branch (similar to the above embodiments, each detection branch includes a 5KΩ resistor voltage divider circuit and a 1KΩ resistor pull-down circuit), and then connects to the corresponding indicator light via the control switch. Figure 7As shown; the voltage connected to the first detection branch 721a is indicated by illuminating the connected left turn indicator 731a through the closed first control switch 71a; the voltage connected to the second detection branch 721b is indicated by illuminating the connected brake indicator 731b through the closed second control switch 71b; the voltage connected to the third detection branch 721c is indicated by illuminating the connected right turn indicator 731c through the closed third control switch 71c; the voltage connected to the fourth detection branch 721d is indicated by illuminating the connected right turn indicator 731c through the closed fourth control switch 71a. Switch 71d illuminates the connected reversing light indicator 731d for indication; the voltage connected to the fifth detection branch 721e illuminates the connected fog light indicator 731e via the closed fifth control switch 71e for indication; the voltage connected to the sixth detection branch 721f illuminates the connected position light indicator 731f via the sixth control switch 71f for indication, and the ground wire is connected to the ground wire indicator 731g via the closed seventh control switch 71g for indication. Normally, the ground wire indicator 731g is in the normally closed state. The connection method of the resistor in the detection branch is the same as in the above embodiment (…). Figure 2 The connections of the detection branches in the same branch are identical, and the connection points of the two resistors in the same detection branch are connected to the corresponding control switches.

[0053] It should be noted that in this embodiment, to detect which plugs in the seven-hole socket, the control switch connected to the corresponding detection branch needs to be closed. When the seven-hole socket connector is connected to the seven-hole socket interface, the detection result can be viewed directly through the corresponding indicator light.

[0054] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heavy truck multi-hole socket detection device, characterized in that, The device includes a detection board and a multi-hole socket connector for mating with a multi-hole socket. The detection board is provided with a control module and a detection module connected to the control module. The detection module includes multiple detection branches. After the multi-hole socket is plugged into the multi-hole socket connector, each plug of the multi-hole socket is connected to a detection branch through a wire. All detection branches are connected to the control module respectively. The device also includes a display module and / or an indicator module connected to the control module for displaying the test results.

2. The heavy truck multi-prong socket detection device of claim 1, wherein, Each detection branch includes two resistors connected in series; the connection point of the two resistors in each detection branch is connected to the control module.

3. The heavy truck multi-prong socket detection apparatus of claim 2, wherein, The detection board is also equipped with a signal input connector. The first end of each detection branch is connected to an input terminal of the signal input connector. Each output terminal of the signal input connector is connected to a hole of the multi-hole socket connector through a wire. The second end of each detection branch is grounded.

4. The heavy truck multi-hole socket detection apparatus of claim 3, wherein, The device also includes a connector housing (40), a multi-hole socket connector is disposed at one end of the connector housing (40), and a detection board housing (10) is connected to the other end of the connector housing (40). The detection board is installed inside the detection board housing (10). The signal input connector is electrically connected to the multi-hole socket connector by passing through the detection board housing (10) and the connector housing (40) in sequence with wires.

5. The heavy truck multi-hole socket detection apparatus of claim 4, wherein, The multi-hole socket connector is embedded in one end of the connector protective shell (40) away from the detection board protective shell (10); the detection board protective shell (10) is recessed inward on the side away from the connector protective shell (40) and a mounting chamber (11) is provided on each of the four corners of the mounting chamber (11) for fixing the detection board with a second bolt; a wire-passing hole (14) is provided on the side wall of the mounting chamber (11) corresponding to the middle of the connector protective shell (40) and the wire-passing hole (14) allows the wire to pass through to realize the connection between the multi-hole socket connector and the detection board; The connector protective shell (40) and the detection board protective shell (10) are detachable connection structures.

6. The heavy truck multi-prong socket detection apparatus of claim 5, wherein, The connector protective shell (40) includes an upper shell (41) and a lower shell (42). The upper shell (41) and the lower shell (42) are assembled to form a structure that clamps the multi-hole socket connector. A fourth screw hole is provided on the detection plate protective shell (10) on the side of the wire hole (14). The fourth screw hole connects the mounting chamber (11) and the internal space of the connector protective shell (40). A fourth bolt (60) is provided in the fourth screw hole. A limiting platform (44) is provided on the inner wall of the lower shell (42) to allow the fourth bolt (60) to pass through. A fastening nut that can lock the fourth bolt (60) is provided on the side of the limiting platform (44) away from the detection plate protective shell (10) to realize the connection between the detection plate protective shell (10) and the lower shell (42).

7. The heavy truck multi-prong socket detection apparatus of claim 6, wherein, At least one locking protrusion (43) is provided on the opposite edges of the upper housing (41) and the lower housing (42), and the locking protrusion (43) of the upper housing (41) corresponds to the locking protrusion (43) of the lower housing (42); a third screw hole is provided on the locking protrusion (43), and the two upper and lower opposite locking protrusions (43) are connected by a third bolt; the upper housing (41) and the lower housing (42) are both provided with a compensation part (45) that is arc-shaped and can contact the detection plate protective shell (10) at one end.

8. The heavy-duty truck multi-hole socket detection device according to any one of claims 4 to 7, characterized in that, The protective shell (10) of the detection plate is equipped with a protective cover (20) that can cover the installation chamber (11), and the protective cover (20) is made of transparent material.

9. The heavy-duty truck multi-hole socket detection device according to claim 8, characterized in that, The protective cover (20) has first screw holes b (21) at its four corners, and the detection plate protective shell (10) has first screw holes a (12) that correspond to the first screw holes b (21). The protective cover (20) is installed on the detection plate protective shell (10) by passing the first screw holes b (21) and the first screw holes a (12) through the first bolts (22).

10. The heavy truck multi-prong socket detection apparatus of claim 9, wherein, The control module includes a control chip or a control switch; When the control module includes a control chip, the device also includes a power module. The detection board is also equipped with a Bluetooth module connected to the control chip for sending detection results to the outside. The power module is connected to the Bluetooth module and the control module respectively via a power switch.

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