A line sequence conduction detector

Abstract

The utility model discloses a kind of line sequence conduction detection instruments, including detection table, the lower end of detection table is provided with detection bin, the upper end of detection table is provided with adjusting bin, further including dustproof mechanism;Dustproof mechanism: it includes dustproof transparent cover, fixed rod, limiting handle and support plate, the left end of detection table upper surface is provided with dustproof transparent cover, the left end of detection table front side surface is fixedly connected with two fixed rods, the middle part of fixed rod outer surface is all rotationally connected with limiting handle, the lower end of dustproof transparent cover is fixedly connected with the support plate of symmetrical distribution, support plate is all installed with adjacent limiting handle cooperation, the dustproof mechanism further includes limiting cap and torsion spring, the front end of adjacent fixed rod is all sleeved in limiting cap, torsion spring is all arranged between the front side surface of limiting handle and the rear side surface of adjacent fixed rod, torsion spring is sleeved in the outer surface of adjacent fixed rod, this line sequence conduction detection instrument effectively improves focusing efficiency, image resolution and similar color identification rate and realizes the synchronous performance of line sequence and conduction detection, simultaneously realizes dustproof protection to conduction plug under non-working state.

Description

Technical Field

[0001] This utility model relates to the field of industrial testing technology, specifically a line sequence continuity tester. Background Technology

[0002] A wire sequence continuity tester is an industrial device that combines wire sequence detection and continuity testing functions. It is mainly used to detect the color arrangement order and electrical continuity performance of wire harnesses to ensure that the wire harnesses meet design requirements. It is widely used in the automotive, home appliance, and electronic equipment industries.

[0003] Existing wire sequence continuity testers are mainly divided into two categories. One category is the ordinary camera wire sequence tester, which consists of an industrial camera with less than 5 megapixels, a fixed-focus lens, a ring LED light source, an acrylic fixture stage, and a control system. After the wire harness is fixed manually, the camera takes an image and identifies the wire sequence by comparing RGB color thresholds. It relies on manual knob focusing. The other category is the discrete continuity tester, which adopts the four-wire resistance testing principle. It connects the wire harness through a spring terminal block and detects the continuity resistance (accuracy ±1%). However, it requires manual wiring and cannot detect the wire sequence simultaneously.

[0004] These line sequence continuity testers have several problems: slow mechanical focusing response (≥500ms) and easy wear, requiring frequent calibration; low image resolution (≤5 million pixels); low similar color recognition rate (≤70%); separate line sequence and continuity detection, resulting in low efficiency and the need for repeated positioning; and lack of dust protection mechanism, allowing dust to enter the continuity plug when it is not in use, affecting the continuity detection effect. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a line sequence continuity detector that effectively improves focusing efficiency, image resolution and similar color recognition rate, and realizes the simultaneous detection of line sequence and continuity. At the same time, it can provide dust protection for the continuity plug when not in operation, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a line sequence continuity tester, including a test platform, a test chamber at the lower end of the test platform, an adjustment chamber at the upper end of the test platform, and a dustproof mechanism;

[0007] Dustproof mechanism: It includes a dustproof transparent cover, fixing rods, limiting handles and support plates. The dustproof transparent cover is set on the left end of the upper surface of the detection table. Two fixing rods are fixedly connected to the left end of the front surface of the detection table. The middle of the outer surface of each fixing rod is rotatably connected to a limiting handle. The lower end of the dustproof transparent cover is fixedly connected to symmetrically distributed support plates. The support plates are installed in conjunction with the adjacent limiting handles. This effectively improves focusing efficiency, image resolution and similar color recognition rate, and enables the synchronous detection of line sequence and continuity. At the same time, it provides dustproof protection for the continuity plug when not in operation.

[0008] Furthermore, the dustproof mechanism also includes a limiting cap and a torsion spring. The limiting cap is sleeved on the front end of the adjacent fixing rod. A torsion spring is provided between the front surface of the limiting handle and the rear surface of the adjacent fixing rod. The torsion spring is sleeved on the outer surface of the adjacent fixing rod to provide driving force for the reset of the limiting handle.

[0009] Furthermore, a platform is provided on the left end of the upper surface of the testing platform, and an inner platform is provided on the left end of the front surface of the testing platform. Both the platform and the inner platform are installed in conjunction with a dustproof transparent cover. A conductive plug is provided inside the platform and at the front end of the inner platform. A continuity detector is provided on the right end of the bottom wall of the testing chamber. The input end of the upper conductive plug is electrically connected to the output end of the continuity detector, and the output end of the front conductive plug is electrically connected to the input end of the continuity detector. A controller is provided in the middle of the bottom wall of the testing chamber. An aviation plug is provided at the rear end of the left surface of the testing chamber, and a three-prong female plug is provided at the rear end of the right surface of the testing chamber. The output end of the three-prong female plug is electrically connected to the input end of the controller. A USB port is provided in the middle of the right surface of the testing chamber. The aviation plug, the continuity detector, and the USB port are bidirectionally electrically connected to the controller to perform continuity testing of the testing harness and signal transmission with external devices.

[0010] Furthermore, an adjustment frame is fixedly connected to the left end of the bottom wall of the adjustment chamber, and a sliding frame is slidably connected inside the adjustment frame. A protective cover is provided on the left end of the front surface of the detection platform, and the sliding frame is located inside the protective cover. A liquid camera is provided at the front end of the sliding frame, and the liquid camera is bidirectionally electrically connected to the controller. A ring light source is provided at the front end of the lower surface of the sliding frame, and the input end of the ring light source is electrically connected to the output end of the controller to perform wire sequence detection of the detection harness.

[0011] Furthermore, the adjusting frame is internally rotatably connected to a screw, the middle of which is threadedly connected to the rear end of the sliding frame. A knob is fixedly connected to the upper end of the screw. Corrugated tubes are provided between the upper surface of the sliding frame and the top wall of the adjusting frame, and between the lower surface of the sliding frame and the bottom wall of the adjusting chamber. The corrugated tubes are all fitted onto the outer surface of the screw. Symmetrically distributed scale strips are provided on the rear surface of the adjusting frame. An indicator needle is provided at the rear end of the sliding frame. The indicator needle is installed in conjunction with the scale strips to realize the vertical fine adjustment of the liquid camera.

[0012] Furthermore, speakers are provided at both ends of the top wall of the detection chamber, and evenly distributed sound amplification holes are provided at both ends of the detection chamber. A display screen is provided at the right end of the front surface of the detection platform, and two indicator lights are provided in the middle of the front surface of the detection platform. The input terminals of the speakers, indicator lights, and display screen are all electrically connected to the output terminal of the controller to display the detection structure of the wire harness.

[0013] Furthermore, a fan slot is provided at the right end of the regulating chamber, and a fan is installed inside the fan slot. The input end of the fan is electrically connected to the output end of the controller to achieve heat dissipation inside the regulating chamber.

[0014] Furthermore, the rear end of the testing platform is connected to a chamber door via evenly distributed screws, facilitating the inspection and maintenance of the components inside the adjustment chamber and the testing chamber.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This wire sequence continuity detector has the following advantages:

[0016] 1. The mechanical focusing-free technology of the 800W liquid camera (voltage-controlled lens curvature, response ≤5ms) solves the problem of slow mechanical focusing response and eliminates the need for frequent calibration. The 800W high-resolution liquid camera works in conjunction with a ring light source to improve the recognition rate of similar colors. The liquid camera and continuity detector work together to achieve simultaneous detection of line sequence and continuity, which effectively improves the efficiency of line sequence and continuity detection of the detection harness, while ensuring the effectiveness of line sequence and continuity detection of the detection harness.

[0017] 2. The dustproof transparent cover is quickly and stably installed and removed by the longitudinal limit of the support plate by the limit handle. At the same time, the torsion spring assists in the reset of the limit handle, so as to achieve dust protection for the conductor plug in the non-working state and prevent dust from entering the conductor plug and affecting the efficiency of wire harness continuity detection. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the structure on the right side of this utility model;

[0021] Figure 4 This is a cross-sectional view of the rear side of the present invention;

[0022] Figure 5 This is an enlarged structural diagram of point A in this utility model.

[0023] In the diagram: 1. Detection platform, 2. Detection chamber, 3. Adjustment chamber, 4. Dustproof mechanism, 41. Dustproof transparent cover, 42. Fixing rod, 43. Limit handle, 44. Limit cap, 45. Torsion spring, 46. Support plate, 5. Adjustment frame, 6. Screw, 7. Sliding frame, 8. Liquid camera, 9. Ring light source, 10. Knob, 11. Protective cover, 12. Corrugated pipe, 13. Platform, 14. Inner platform, 15. Conductive connector, 16. Speaker, 17. Aviation plug, 18. Indicator light, 19. Display screen, 20. Switch button, 21. Controller, 22. Conductive detector, 23. USB connector, 24. Three-prong female plug, 25. Fan slot, 26. Fan, 27. Chamber door, 28. Scale bar. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This embodiment provides a technical solution: a line sequence continuity tester, including a test platform 1, a test chamber 2 at the lower end of the test platform 1, an adjustment chamber 3 at the upper end of the test platform 1, and a dustproof mechanism 4.

[0026] Dustproof mechanism 4 includes a dustproof transparent cover 41, fixing rods 42, limiting handles 43, and support plates 46. The dustproof transparent cover 41 is located on the left end of the upper surface of the testing table 1. Two fixing rods 42 are fixedly connected to the left end of the front surface of the testing table 1. The middle of the outer surface of each fixing rod 42 is rotatably connected to a limiting handle 43. The lower end of the dustproof transparent cover 41 is fixedly connected to symmetrically distributed support plates 46. Each support plate 46 is installed in conjunction with an adjacent limiting handle 43. The dustproof mechanism 4 also includes a limiting cap 44 and a torsion spring 45. Each limiting cap 44 is sleeved on the front end of an adjacent fixing rod 42. A torsion spring 45 is provided between the front surface of the limiting handle 43 and the rear surface of the adjacent fixing rod 42. The torsion spring 45 is sleeved on the front end of the limiting rod 42. The outer surface of the adjacent fixing rod 42 is connected to the front end of the adjacent fixing rod 42 by a threaded connection. The rear pin of the torsion spring 45 can be engaged with the front end of the limiting handle 43 by a snap fastener, and the front pin of the torsion spring 45 can be engaged with the rear end of the limiting cap 44 by a snap fastener. Periodically, the limiting cap 44 is screwed out, and then the front and rear pins of the torsion spring 45 are engaged. Then, the torsion spring 45 is moved from back to front off the outer surface of the fixing rod 42. Then, a new torsion spring 45 is fitted onto the outer surface of the fixing rod 42 from front to back. The front and rear pins of the spring 45 are engaged with the front end of the limiting handle 43 and the rear end of the limiting cap 44 by corresponding snap fasteners. Then, the limiting cap 44 is screwed back onto the fixing rod. At the front end of 42, the torsion spring 45 is replaced periodically to prevent aging of the torsion spring 45 from affecting the limiting stability of the dustproof transparent cover 41. The lower ends of the two limiting handles 43 are moved closer to the center of the dustproof transparent cover 41. Each limiting handle 43 rotates around the central axis of the corresponding fixing rod 42 away from the center of the dustproof transparent cover 41. The rotation of the limiting handles 43 causes the adjacent torsion springs 45 to exert a torsional force. When the rear surface of the limiting handle 43 finally contacts the front surface of the adjacent support plate 46, the longitudinal limiting of the dustproof transparent cover 41 ends. Then, the dustproof transparent cover 41 moves from back to front, leaving the detection table 1. The dustproof transparent cover 41 then stops limiting the position of the platform 13 and the inner platform 14. After dust protection, the force applied to the limiting handle 43 is released, and the elastic force of the torsion spring 45 reacts to the limiting handle 43, causing the limiting handle 43 to rotate in the opposite direction and reset. When the continuity tester stops working, the lower ends of the two limiting handles 43 are moved towards the center of the dustproof transparent cover 41, and then the dustproof transparent cover 41 is moved from front to back to the front end of the test platform 1, so that the platform 13 and the inner platform 14 are both inside the dustproof transparent cover 41. Then the force applied to the limiting handle 43 is released, and the elastic force of the torsion spring 45 reacts to the limiting handle 43, causing the limiting handle 43 to rotate in the opposite direction and reset. The rear surface of the limiting handle 43 is re-attached to the front surface of the adjacent support plate 46, thus re-limiting the dustproof transparent cover 41.

[0027] The following components are provided: a platform 13 is installed on the left end of the upper surface of the testing station 1; an inner platform 14 is installed on the left end of the front surface of the testing station 1; both the platform 13 and the inner platform 14 are installed in conjunction with the dustproof transparent cover 41; a conductive plug 15 is provided inside the platform 13 and at the front end of the inner platform 14; a continuity detector 22 is installed on the right end of the bottom wall of the testing chamber 2; the input end of the upper conductive plug 15 is electrically connected to the output end of the continuity detector 22, and the output end of the front conductive plug 15 is electrically connected to the input end of the continuity detector 22; a controller 21 is installed in the middle of the bottom wall of the testing chamber 2; an aviation plug 17 is installed at the rear end of the left side surface of the testing chamber 2; a three-prong female plug 24 is installed at the rear end of the right side surface of the testing chamber 2; the output end of the three-prong female plug 24 is electrically connected to the input end of the controller 21; a USB port 23 is installed in the middle of the right side surface of the testing chamber 2; and the aviation plug 17 and continuity detector 22 are also provided. The USB connector 23 is bidirectionally electrically connected to the controller 21. The two terminals of the detection harness are accurately inserted into the two conductive plugs 15, ensuring that the color area of ​​the harness is aligned with the lens of the liquid camera 8 without obstruction. Then, the three-pin female plug 24 is electrically connected to the external power supply through the external power connection cable to power the wire sequence continuity tester. Press the switch button 20 to start the wire sequence continuity tester. After the detection harness is inserted in place, the system automatically triggers the detection process. During continuity testing: the continuity detector 22 inputs a signal to the upper conductive plug 15. The input signal passes through the detection harness and is output through the front conductive plug 15. The output signal enters the signal receiving end of the continuity detector 22, thereby realizing the continuity test of the inserted detection harness and determining whether the detection harness is connected (short circuit, open circuit, etc.). At the same time, the continuity test result is sent to the signal receiving end of the controller 21 in real time.

[0028] The following configuration is provided: An adjustment frame 5 is fixedly connected to the left end of the bottom wall of the adjustment chamber 3; a sliding frame 7 is slidably connected inside the adjustment frame 5; a protective cover 11 is provided on the left end of the front surface of the detection table 1; the sliding frame 7 is located inside the protective cover 11; a liquid camera 8 is provided at the front end of the sliding frame 7 (the liquid camera 8 can be a HY-S800AF, and its lens is a liquid lens capable of automatic focusing); the liquid camera 8 is bidirectionally electrically connected to the controller 21; a ring light source 9 is provided at the front end of the lower surface of the sliding frame 7; the input end of the ring light source 9 is electrically connected to the output end of the controller 21; a screw 6 is rotatably connected inside the adjustment frame 5; the middle part of the screw 6 is threadedly connected to the rear end of the sliding frame 7; a knob 10 is fixedly connected to the upper end of the screw 6; and the upper surface of the sliding frame 7 and the top wall of the adjustment frame 5 are connected... A bellows 12 is provided between the lower surface of the sliding frame 7 and the bottom wall of the adjustment chamber 3. The bellows 12 are all fitted with the outer surface of the screw 6. The rear surface of the adjustment frame 5 is provided with symmetrically distributed scale bars 28. The rear end of the sliding frame 7 is provided with an indicator needle, which is installed in conjunction with the scale bars 28. When performing color detection, the controller 21 enables the liquid camera 8 and the ring light source 9 to operate. The ring light source 9 is turned on to provide a stable light source for the liquid camera 8. The liquid camera 8 captures the color area of ​​the detection harness and reads the actual RGB value. The liquid camera 8 sends the image information read to the signal receiving end of the controller 21 in real time. The controller 21 compares the image information of the detection harness with the preset upper and lower limits. The controller 21 combines the continuity detection and color detection results to determine whether the product is qualified.

[0029] The test chamber 2 has speakers 16 installed at both ends of its top wall, and evenly distributed sound holes at both ends. A display screen 19 is installed on the right end of the front surface of the test platform 1, and two indicator lights 18 are installed in the center of the front surface (the right indicator light 18 displays green, and the left indicator light 18 displays red). The input terminals of the speakers 16, indicator lights 18, and display screen 19 are all electrically connected to the output terminal of the controller 21. When the wire harness is tested and found to be qualified, the controller 21 activates the display screen 19, which displays "Qualified" and detailed test data (continuity status, RGB actual values). Simultaneously, the controller 21 activates the right indicator light 18, illuminating the green indicator light. The controller 21 also activates the speakers 16, which announce "Test Qualified". When the wire harness is tested and found to be unqualified, the controller 21 activates the display screen 19, which displays "Test Qualified". If the test fails and the specific reason is not met (e.g., "color exceeds the upper limit" or "conductivity is abnormal"), the controller 21 will activate the indicator light 18 on the left, and the red indicator light 18 will light up. The controller 21 will also activate the speaker 16, which will announce "test failed". The controller 21 will automatically store the test data (including time, product number, test result, etc.) for easy traceability. After the test is completed, the operator will unplug the test harness from the continuity plug 15. The operator will remove the tested harness according to the prompts. Qualified products will be placed in the qualified product area, and unqualified products will be placed in the defective product area. An external signal device can be electrically connected to the aviation plug 17 via an external data cable to realize the real-time transmission of the test harness sequence and continuity test information. At the same time, an external mouse can be electrically connected to the USB port 23 to adjust the controller 21 control system, or an external USB flash drive can be electrically connected to the USB port 23 to extract the test harness sequence and continuity test data.

[0030] Wherein: a fan slot 25 is provided at the right end of the regulating chamber 3, and a fan 26 is provided inside the fan slot 25. The input end of the fan 26 is electrically connected to the output end of the controller 21. The controller 21 enables the fan 26 to run. The fan 26 draws out the air inside the regulating chamber 3, and the external air enters the regulating chamber 3 through the protective cover 11 to dissipate heat inside the regulating chamber 3.

[0031] Among them, the rear end of the testing station 1 is connected to the chamber door 27 by evenly distributed screws, which facilitates the opening of the adjustment chamber 3 and the testing chamber 2 for the inspection and maintenance of the components inside the adjustment chamber 3 and the testing chamber 2.

[0032] The working principle of the continuity tester provided by this utility model is as follows: During operation, the operator first places the test platform 1, test chamber 2, and other mechanisms stably in the horizontal working area. After stable placement, the operator first moves the lower ends of the two limiting handles 43 towards the center of the dustproof transparent cover 41. Each limiting handle 43 rotates around the central axis of the corresponding fixing rod 42 away from the center of the dustproof transparent cover 41. The rotation of the limiting handles 43 causes the adjacent torsion springs 45 to torsion. When the rear surface of the limiting handle 43 finally contacts the front surface of the adjacent support plate 46, the longitudinal limitation on the dustproof transparent cover 41 ends. Then, the operator moves the dustproof transparent cover 41 from back to front, and the dustproof transparent cover 41 moves away from the test platform 1. After completing the dust protection of stage 13 and inner stage 14, the operator accurately inserts the two terminals of the test harness into the two continuity plugs 15, ensuring that the color area of ​​the harness is aligned with the lens of the liquid camera 8 without obstruction. Then, the operator connects the three-pin female plug 24 to an external power source via an external power cable to power the continuity tester. The operator presses the switch button 20 to start the continuity tester. After the test harness is inserted, the system automatically triggers the testing process. During continuity testing: the continuity detector 22 inputs a signal to the upper continuity plug 15. The input signal passes through the test harness and is output through the front continuity plug 15. The output signal enters the signal receiving end of the continuity detector 22, thereby enabling the testing of the inserted test harness. The continuity test of the wire harness determines whether it is connected (short circuit, open circuit, etc.) and sends the continuity test result to the signal receiving end of the controller 21 in real time. During color detection, the controller 21 activates the liquid camera 8 and the ring light source 9. The ring light source 9 provides a stable light source for the liquid camera 8, which captures the color area of ​​the wire harness and reads the actual RGB values. The liquid camera 8 sends the image information to the signal receiving end of the controller 21 in real time. The controller 21 compares the acquired image information of the wire harness with preset upper and lower limits. The controller 21 combines the continuity and color detection results to determine whether the product is qualified. When the wire harness is qualified, the controller 21 activates the display screen 19 to display the result. Screen 19 displays "Pass" and detailed test data (continuity status, actual RGB values). Simultaneously, controller 21 activates indicator light 18 on the right, illuminating the green indicator light. Controller 21 also activates speaker 16, which announces "Test Passed." When the wiring harness fails the test, controller 21 activates display screen 19, displaying "Failed" and the specific reason (e.g., "Color exceeds upper limit," "Continuity abnormality"). Controller 21 also activates indicator light 18 on the left, illuminating the red indicator light. Controller 21 then activates speaker 16, which announces "Test Failed." Controller 21 automatically stores the test data (including time, product number, test results, etc.) for future traceability.After testing, the operator unplugs the testing harness from the continuity plug 15. Following the prompts, the operator removes the tested harness, placing qualified products in the qualified product area and unqualified products in the defective product area. Personnel can connect an external signal device via an external data cable to the aviation plug 17 to achieve real-time transmission of the testing harness sequence and continuity test information. Simultaneously, personnel can connect an external mouse to the USB port 23 to adjust the control system of the controller 21, or connect an external USB flash drive to the USB port 23 to extract the testing harness sequence and continuity test data.

[0033] It is worth noting that the controller 21 disclosed in the above embodiments can be an S7-300, the continuity detector 22 can be a TH615-640, and the controller 21 controls the operation of the liquid camera 8, the ring light source 9, the speaker 16, the aviation plug 17, the indicator light 18, the display screen 19, the switch button 20, the continuity detector 22, the USB connector 23, the three-pin female plug 24, and the fan 26 using methods commonly used in the prior art.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A continuity tester for a line sequence, comprising a test platform (1), a test chamber (2) disposed at the lower end of the test platform (1), and an adjustment chamber (3) disposed at the upper end of the test platform (1), characterized in that: It also includes a dustproof mechanism (4); Dustproof mechanism (4): It includes a dustproof transparent cover (41), a fixing rod (42), a limiting handle (43) and a support plate (46). The dustproof transparent cover (41) is set on the left end of the upper surface of the testing table (1). Two fixing rods (42) are fixedly connected to the left end of the front surface of the testing table (1). The middle part of the outer surface of the fixing rods (42) is rotatably connected to the limiting handle (43). The lower end of the dustproof transparent cover (41) is fixedly connected to symmetrically distributed support plates (46). The support plates (46) are all installed in cooperation with the adjacent limiting handles (43).

2. The continuity tester according to claim 1, characterized in that: The dustproof mechanism (4) also includes a limiting cap (44) and a torsion spring (45). The limiting cap (44) is sleeved on the front end of the adjacent fixing rod (42). A torsion spring (45) is provided between the front surface of the limiting handle (43) and the rear surface of the adjacent fixing rod (42). The torsion spring (45) is sleeved on the outer surface of the adjacent fixing rod (42).

3. A continuity tester for a line sequence according to claim 1, characterized in that: A platform (13) is provided on the left end of the upper surface of the detection table (1), and an inner platform (14) is provided on the left end of the front surface of the detection table (1). Both the platform (13) and the inner platform (14) are installed in conjunction with the dustproof transparent cover (41). A conductive plug (15) is provided inside the platform (13) and at the front end of the inner platform (14). A continuity detector (22) is provided on the right end of the bottom wall of the detection chamber (2). The input end of the upper conductive plug (15) is electrically connected to the output end of the continuity detector (22), and the output end of the front conductive plug (15) is connected to the continuity detector (22). The input end of the detector (22) is electrically connected. A controller (21) is provided in the middle of the bottom wall of the detection chamber (2). An aviation plug (17) is provided at the rear end of the left side surface of the detection chamber (2). A three-hole female plug (24) is provided at the rear end of the right side surface of the detection chamber (2). The output end of the three-hole female plug (24) is electrically connected to the input end of the controller (21). A USB connection port (23) is provided in the middle of the right side surface of the detection chamber (2). The aviation plug (17), the continuity detector (22), and the USB connection port (23) are bidirectionally electrically connected to the controller (21).

4. A continuity tester for a line sequence according to claim 3, characterized in that: An adjustment frame (5) is fixedly connected to the left end of the bottom wall of the adjustment chamber (3). A sliding frame (7) is slidably connected inside the adjustment frame (5). A protective cover (11) is provided on the left end of the front surface of the detection table (1). The sliding frame (7) is located inside the protective cover (11). A liquid camera (8) is provided at the front end of the sliding frame (7). The liquid camera (8) is bidirectionally electrically connected to the controller (21). A ring light source (9) is provided at the front end of the lower surface of the sliding frame (7). The input end of the ring light source (9) is electrically connected to the output end of the controller (21).

5. A continuity tester for a line sequence according to claim 4, characterized in that: The adjusting frame (5) is internally rotatably connected to a screw (6). The middle part of the screw (6) is threadedly connected to the rear end of the sliding frame (7). A knob (10) is fixedly connected to the upper end of the screw (6). Corrugated pipes (12) are provided between the upper surface of the sliding frame (7) and the top wall of the adjusting frame (5), and between the lower surface of the sliding frame (7) and the bottom wall of the adjusting chamber (3). The corrugated pipes (12) are all sleeved on the outer surface of the screw (6). Symmetrically distributed scale strips (28) are provided on the rear side surface of the adjusting frame (5). An indicator needle is provided at the rear end of the sliding frame (7). The indicator needle is installed in conjunction with the scale strips (28).

6. A continuity tester for a line sequence according to claim 3, characterized in that: Speakers (16) are provided at both ends of the top wall of the detection chamber (2). Amplification holes are provided at both ends of the detection chamber (2). A display screen (19) is provided at the right end of the front surface of the detection platform (1). Two indicator lights (18) are provided in the middle of the front surface of the detection platform (1). The input terminals of the speakers (16), indicator lights (18) and display screen (19) are all electrically connected to the output terminal of the controller (21).

7. A continuity tester for a line sequence according to claim 1, characterized in that: The right end of the regulating chamber (3) is provided with a fan slot (25), and a fan (26) is provided inside the fan slot (25). The input end of the fan (26) is electrically connected to the output end of the controller (21).

8. A continuity tester according to claim 1, characterized in that: The rear end of the testing station (1) is connected to a compartment door (27) by evenly distributed screws.

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