Device for detecting a logging tool connector pin

Abstract

The utility model discloses a logging instrument connector contact pin's detection device, including the shell, the shell is cylindrical structure, and there is the cavity inside, and both ends are plane, the locking screw is fixedly installed outside the shell, the shell one end fixed installation instruction panel, and the instruction panel is fixedly installed power switch and LED indicator towards user one end, and the wire harness is in the shell inside, and the LED indicator is connected contact pin test mechanism through the wire harness, and contact pin test mechanism fixed mounting is in the shell other end, and the LED indicator and contact pin test mechanism equal number and one -to -one correspondence, and contact pin test mechanism is connected tester power through the wire harness, and tester power installation is in the shell internal cavity, this contact pin detection device need not naked eye direct observation contact pin and detection device connection position just can know the detection result, and one time detection can detect multiple contact pins.

Description

Technical Field

[0001] This utility model pertains to detection devices, specifically a detection device for connector pins of well logging instruments. Background Technology

[0002] Logging pins are typically part of the connectors used in logging instruments. Their working principle is mainly to transmit circuit signals or electricity through the cooperation of the pin and the socket. At the same time, a specific structural design ensures the reliability and stability of the connection. However, the mining environment is complex. If the pin has problems such as poor contact or damage, it may cause serious safety accidents such as short circuits, leakage, or even explosions. Timely detection can help identify potential hazards in advance and avoid personnel casualties caused by electrical faults.

[0003] Currently, most commonly used pin detection devices require direct visual observation of the contact area between the pin and the detector, or can only detect a single pin at a time, making it impossible to determine whether all pins are functioning correctly through a single test. A small number of detection devices can detect multiple pins, but they can only determine whether the pins on the instrument connector are functioning correctly, and cannot accurately locate the problematic pin. At the same time, traditional multi-pin detectors require docking with multiple detectors and pins, which requires repeated docking and calibration, which is time-consuming and labor-intensive. During the docking process, the detector and pins repeatedly rub and collide, which can easily damage the detector and pins.

[0004] Therefore, this utility model aims to provide a solution to the problem of whether the connector pins of the well logging instrument are loose, missing, or deformed. When the multi-pin connector sealed in the steel barrel is loose, missing, or deformed, the test result can be known without visually observing the connection position between the pins and the testing device.

[0005] A patent literature search revealed two utility model patents with similar objectives. One, titled "A Plug and Pin Detection Fixture," with authorization publication number CN215449637U, detects an exposed plug. The detector applies a certain force, allowing direct visual observation. However, it cannot detect connector pins that are difficult to observe when sealed within a pressure-bearing steel drum. Another patent, titled "A Detection Device for Pin Installation," with authorization publication number CN213068032U, also only detects a single pin and cannot detect connector pins that are difficult to observe when sealed within a pressure-bearing steel drum. Utility Model Content

[0006] The purpose of this invention is to provide a detection device for connector pins of logging instruments, which solves the problem in the prior art that the pin detection process must be carried out manually and by visually observing the connection between the pin and the detector.

[0007] To solve the above-mentioned technical problems, this utility model provides a logging instrument connector pin detection device, including a housing. The housing is a cylindrical structure with an internal cavity and two flat ends. Locking screws are fixedly installed on the outside of the housing. An indicator panel is fixedly installed on one end of the housing. A power switch and an LED indicator are fixedly installed on the end of the indicator panel facing the user. A wire harness is inside the housing. The LED indicator is connected to a pin testing mechanism through the wire harness. The pin testing mechanism is fixedly installed on the other end of the housing. The number of LED indicators and pin testing mechanisms are equal and correspond one-to-one. The pin testing mechanism is connected to a tester power supply through the wire harness. The tester power supply is installed in the internal cavity of the housing.

[0008] The features of this utility model also include: The pin testing mechanism includes a pin holder with a cylindrical groove at one end facing the outside of the housing. A detection pin is arranged axially along the cylindrical groove. The detection pin is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part, which faces the inside of the housing. An insulating pad is fixedly installed at the other end of the short, thick cylindrical part of the detection pin. One end of the short, thick cylindrical part of the detection pin abuts against a pressure plate via a spring. The long, thin cylindrical part of the detection pin passes through the pressure plate and is fixedly connected to the rear end of the detection pin. A hole is opened on PCB board A to fix a contact point. The rear end of the detection pin passes through the fixed contact point and abuts against one end of a spring contact. The other end of the spring contact is fixedly connected to PCB board B.

[0009] The rear end of the detection probe is a heat shrink tubing.

[0010] There are multiple springs, which are arranged at equal intervals along the axial direction of the slender cylindrical probe.

[0011] The number of pin testing mechanisms and LED indicators are the same and they are connected one-to-one. The arrangement of both mechanisms satisfies axial symmetry and central symmetry.

[0012] The mounting position of the pin testing mechanism on the outer casing is the same as the pin position on the corresponding well logging instrument.

[0013] The other end of the housing is fixedly installed with positioning holes, which are axially arranged on the indicator panel and are equally spaced.

[0014] The number of positioning holes is the same as the number of positioning holes on the corresponding well logging instrument, and their positions correspond.

[0015] The beneficial effects of this utility model are: (1) This utility model is a pin detection device for a well logging instrument connector. The detection device is equipped with multiple pin detection devices, and the number and arrangement are the same as the number of pins on the corresponding well logging instrument. All pins on the connector head can be detected in a single test, avoiding repetitive work and improving work efficiency.

[0016] (2) The present invention provides a well logging instrument connector pin detection device. The pin detection mechanism of the detection device is connected to an LED indicator. After the detection, the detection result can be obtained without visually observing the connection position between the pin and the detection device, thus reducing the workload.

[0017] (3) The detection device for connector pins of the logging instrument of this utility model has a pin detection mechanism connected to an LED indicator. The number of pin detection mechanisms and LED indicator lights are the same and they are connected one-to-one. This allows for accurate identification of individual problematic pins during the detection process, facilitating subsequent targeted maintenance and replacement, improving work efficiency and accuracy.

[0018] (4) The detection device for connector pins of the logging instrument of this utility model has positioning holes around the pin detection mechanism of the detection device. The positioning holes on the detection device and the positioning holes on the instrument being tested can be aligned and docked, avoiding uneven force and repeated friction and collision caused by multiple pin detection mechanisms docking multiple pins at the same time, preventing damage to the detection device and the instrument being tested, improving docking accuracy and efficiency, and extending the service life of the equipment. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the connector pin detection device for well logging instruments of this utility model; Figure 2 This is a structural diagram of the pin detection mechanism of the connector pin detection device for logging instruments of this utility model; Figure 3 This is a diagram of the existing technology for testing the pin structure; Figure 4 This is a working diagram of the connector pin detection device for well logging instruments of this utility model; Figure 5 This is a front view of the indicator panel of the well logging instrument connector pin detection device of this utility model; Figure 6 This is a front view of the pin testing mechanism of the well logging instrument connector pin testing device of this utility model.

[0020] In the diagram: 1. Housing, 2. Tester power supply, 3. Wiring harness, 4. Pin test mechanism, 5. Locking screw, 6. Indicator panel, 7. Test panel power switch, 8. LED indicator, 9. Positioning hole; 40. Pin holder, 41. Insulating pad, 42. Detection pin, 421. Rear end of detection pin, 43. Spring, 44. Pressure plate, 45. PCB board A, 451. Fixed contact, 46. PCB board B, 461. Spring contact; 100. Outer cylinder of the instrument under test; 101. Electrical connector of the instrument under test; 1011. Pin under test; 1021. Low burial depth pin; 1022. Medium burial depth pin; 1023. High burial depth pin. Detailed Implementation

[0021] The following detailed description is provided in conjunction with specific implementation methods.

[0022] This utility model provides a device for detecting connector pins of logging instruments. Figure 1 As shown, it includes a housing 1, which is a cylindrical structure with an internal cavity and flat ends; locking screws 5 are fixedly installed on the outside of the housing 1; an indicator panel 6 is fixedly installed on one end of the housing 1; as shown... Figure 6 As shown, a power switch 7 and an LED indicator 8 are fixedly installed on the end of the indicator panel 6 facing the user. The wiring harness 3 is inside the housing 1. The LED indicator 8 is connected to the pin test mechanism 4 through the wiring harness 3. The pin test mechanism 4 is fixedly installed on the other end of the housing 1. The number of LED indicators 8 and pin test mechanisms 4 are equal and correspond one-to-one. The pin test mechanism 4 is connected to the tester power supply 2 through the wiring harness 3. The tester power supply 2 is installed in the cavity inside the housing 1.

[0023] The pin testing mechanism 4 includes a pin holder 40. The pin holder 40 has a cylindrical groove at one end facing the outside of the outer shell 1. A detection pin 42 is provided along the axial direction of the cylindrical groove. The detection pin 42 is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part. The long, thin cylindrical part faces the inside of the outer shell 1. An insulating pad 41 is fixedly installed at the other end of the short, thick cylindrical part of the detection pin 42. One end of the short, thick cylindrical part of the detection pin 42 abuts against a pressure plate 44 through a spring 43. The long, thin cylindrical part of the detection pin 42 passes through the pressure plate 44 and is fixedly connected to the rear end 421 of the detection pin. A PCB board A 45 has a hole for fixing a contact 451. The rear end 421 of the detection pin passes through the fixed contact 451 and abuts against one end of a spring contact 461. The other end of the spring contact 461 is fixedly connected to PCB board B 46.

[0024] Start during operation Figure 5 The power switch 7 on the central indicator panel 6 will illuminate the LED indicator 8.

[0025] like Figure 4 As shown, the logging instrument connector pin detection device is equipped with a pin testing mechanism 4, one end of which is connected to the electrical connector 101 of the instrument under test.

[0026] like Figure 3 As shown, the probes 1011 to be tested are divided into low-depth probes 1021, medium-depth probes 1022, and high-depth probes 1023, which enter the probe testing mechanism 4.

[0027] like Figure 2 As shown, the probe 1011 being tested enters the probe testing mechanism 4 and pushes the insulating pad 41. The insulating pad 41 pushes the probe 42, the probe 42 pushes the probe rear end 421, and the probe rear end 421 compresses the spring contact 461.

[0028] When the probe 1011 is installed correctly, it is a low-depth probe 1021. The probe rear end 421 squeezes the spring contact 461. The squeezing distance is sufficient. The end of the spring contact 461 near the probe rear end 421 cannot contact the PCB board A 45, and cannot connect the PCB board A 45 and the PCB board B 46. The circuit cannot be connected, and the LED indicator 8 goes out, indicating that there is no abnormal probe.

[0029] When the detected pin is installed abnormally (medium-depth pin 1022, high-depth pin 1023), the detection pin rear end 421 squeezes the spring contact 461. If the squeezing distance is insufficient, the spring contact 461 near the detection pin rear end 421 contacts the PCB board A 45, connecting the PCB board A 45 and the PCB board B 46, thus connecting the circuit. The LED indicator 8 lights up, indicating that there is an abnormal pin.

[0030] Example 1 This utility model provides a logging instrument connector pin detection device, including a housing 1, which is a cylindrical structure with an internal cavity and two flat ends; a locking screw 5 is fixedly installed on the outside of the housing 1; an indicator panel 6 is fixedly installed on one end of the housing 1, and a power switch 7 and an LED indicator 8 are fixedly installed on the end of the indicator panel 6 facing the user; a wire harness 3 is inside the housing 1, and the LED indicator 8 is connected to a pin testing mechanism 4 through the wire harness 3; the pin testing mechanism 4 is fixedly installed on the other end of the housing 1; the number of LED indicators 8 and pin testing mechanisms 4 are equal and correspond one-to-one; the pin testing mechanism 4 is connected to a tester power supply 2 through the wire harness 3; the tester power supply 2 is installed in the internal cavity of the housing 1.

[0031] The pin testing mechanism 4 includes a pin holder 40. The pin holder 40 has a cylindrical groove at one end facing the outside of the outer shell 1. A detection pin 42 is provided along the axial direction of the cylindrical groove. The detection pin 42 is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part. The long, thin cylindrical part faces the inside of the outer shell 1. An insulating pad 41 is fixedly installed at the other end of the short, thick cylindrical part of the detection pin 42. One end of the short, thick cylindrical part of the detection pin 42 abuts against a pressure plate 44 through a spring 43. The long, thin cylindrical part of the detection pin 42 passes through the pressure plate 44 and is fixedly connected to the rear end 421 of the detection pin. A PCB board A 45 has a hole for fixing a contact 451. The rear end 421 of the detection pin passes through the fixed contact 451 and abuts against one end of a spring contact 461. The other end of the spring contact 461 is fixedly connected to PCB board B 46.

[0032] Example 2 This utility model provides a logging instrument connector pin detection device, including a housing 1, which is a cylindrical structure with an internal cavity and two flat ends; a locking screw 5 is fixedly installed on the outside of the housing 1; an indicator panel 6 is fixedly installed on one end of the housing 1, and a power switch 7 and an LED indicator 8 are fixedly installed on the end of the indicator panel 6 facing the user; a wire harness 3 is inside the housing 1, and the LED indicator 8 is connected to the pin testing mechanism 4 through the wire harness 3; the pin testing mechanism 4 is fixedly installed on the other end of the housing 1; the number of LED indicators 8 and pin testing mechanisms 4 are equal and correspond one-to-one; the pin testing mechanism 4 is connected to the tester power supply 2 through the wire harness 3; the tester power supply 2 is installed in the internal cavity of the housing 1.

[0033] The pin testing mechanism 4 includes a pin holder 40. The pin holder 40 has a cylindrical groove at one end facing the outside of the outer shell 1. A detection pin 42 is provided along the axial direction of the cylindrical groove. The detection pin 42 is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part. The long, thin cylindrical part faces the inside of the outer shell 1. An insulating pad 41 is fixedly installed at the other end of the short, thick cylindrical part of the detection pin 42. One end of the short, thick cylindrical part of the detection pin 42 abuts against a pressure plate 44 through a spring 43. The long, thin cylindrical part of the detection pin 42 passes through the pressure plate 44 and is fixedly connected to the rear end 421 of the detection pin. A PCB board A 45 has a hole for fixing a contact 451. The rear end 421 of the detection pin passes through the fixed contact 451 and abuts against one end of a spring contact 461. The other end of the spring contact 461 is fixedly connected to PCB board B 46.

[0034] The rear end 421 of the detection needle is a heat shrink tubing.

[0035] Example 3 This utility model provides a logging instrument connector pin detection device, including a housing 1, which is a cylindrical structure with an internal cavity and two flat ends; a locking screw 5 is fixedly installed on the outside of the housing 1; an indicator panel 6 is fixedly installed on one end of the housing 1, and a power switch 7 and an LED indicator 8 are fixedly installed on the end of the indicator panel 6 facing the user; a wire harness 3 is inside the housing 1, and the LED indicator 8 is connected to the pin testing mechanism 4 through the wire harness 3; the pin testing mechanism 4 is fixedly installed on the other end of the housing 1; the number of LED indicators 8 and pin testing mechanisms 4 are equal and correspond one-to-one; the pin testing mechanism 4 is connected to the tester power supply 2 through the wire harness 3; the tester power supply 2 is installed in the internal cavity of the housing 1.

[0036] The pin testing mechanism 4 includes a pin holder 40. The pin holder 40 has a cylindrical groove at one end facing the outside of the outer shell 1. A detection pin 42 is provided along the axial direction of the cylindrical groove. The detection pin 42 is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part. The long, thin cylindrical part faces the inside of the outer shell 1. An insulating pad 41 is fixedly installed at the other end of the short, thick cylindrical part of the detection pin 42. One end of the short, thick cylindrical part of the detection pin 42 abuts against a pressure plate 44 through a spring 43. The long, thin cylindrical part of the detection pin 42 passes through the pressure plate 44 and is fixedly connected to the rear end 421 of the detection pin. A PCB board A 45 has a hole for fixing a contact 451. The rear end 421 of the detection pin passes through the fixed contact 451 and abuts against one end of a spring contact 461. The other end of the spring contact 461 is fixedly connected to PCB board B 46.

[0037] The rear end 421 of the detection needle is a heat shrink tubing.

[0038] There are multiple springs 43, which are arranged at equal intervals along the axial direction of the slender cylindrical probe 42.

[0039] Example 4 This utility model provides a logging instrument connector pin detection device, including a housing 1, which is a cylindrical structure with an internal cavity and two flat ends; a locking screw 5 is fixedly installed on the outside of the housing 1; an indicator panel 6 is fixedly installed on one end of the housing 1, and a power switch 7 and an LED indicator 8 are fixedly installed on the end of the indicator panel 6 facing the user; a wire harness 3 is inside the housing 1, and the LED indicator 8 is connected to the pin testing mechanism 4 through the wire harness 3; the pin testing mechanism 4 is fixedly installed on the other end of the housing 1; the number of LED indicators 8 and pin testing mechanisms 4 are equal and correspond one-to-one; the pin testing mechanism 4 is connected to the tester power supply 2 through the wire harness 3; the tester power supply 2 is installed in the internal cavity of the housing 1.

[0040] The pin testing mechanism 4 includes a pin holder 40. The pin holder 40 has a cylindrical groove at one end facing the outside of the outer shell 1. A detection pin 42 is provided along the axial direction of the cylindrical groove. The detection pin 42 is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part. The long, thin cylindrical part faces the inside of the outer shell 1. An insulating pad 41 is fixedly installed at the other end of the short, thick cylindrical part of the detection pin 42. One end of the short, thick cylindrical part of the detection pin 42 abuts against a pressure plate 44 through a spring 43. The long, thin cylindrical part of the detection pin 42 passes through the pressure plate 44 and is fixedly connected to the rear end 421 of the detection pin. A PCB board A 45 has a hole for fixing a contact 451. The rear end 421 of the detection pin passes through the fixed contact 451 and abuts against one end of a spring contact 461. The other end of the spring contact 461 is fixedly connected to PCB board B 46.

[0041] The rear end 421 of the detection needle is a heat shrink tubing.

[0042] There are multiple springs 43, which are arranged at equal intervals along the axial direction of the slender cylindrical probe 42.

[0043] Both the pin test mechanism 4 and the LED indicator 8 have 31 units, the same number, and are connected one-to-one. The arrangement satisfies both axial symmetry and central symmetry.

[0044] Example 5 This utility model provides a logging instrument connector pin detection device, including a housing 1, which is a cylindrical structure with an internal cavity and two flat ends; a locking screw 5 is fixedly installed on the outside of the housing 1; an indicator panel 6 is fixedly installed on one end of the housing 1, and a power switch 7 and an LED indicator 8 are fixedly installed on the end of the indicator panel 6 facing the user; a wire harness 3 is inside the housing 1, and the LED indicator 8 is connected to the pin testing mechanism 4 through the wire harness 3; the pin testing mechanism 4 is fixedly installed on the other end of the housing 1; the number of LED indicators 8 and pin testing mechanisms 4 are equal and correspond one-to-one; the pin testing mechanism 4 is connected to the tester power supply 2 through the wire harness 3; the tester power supply 2 is installed in the internal cavity of the housing 1.

[0045] The pin testing mechanism 4 includes a pin holder 40. The pin holder 40 has a cylindrical groove at one end facing the outside of the outer shell 1. A detection pin 42 is provided along the axial direction of the cylindrical groove. The detection pin 42 is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part. The long, thin cylindrical part faces the inside of the outer shell 1. An insulating pad 41 is fixedly installed at the other end of the short, thick cylindrical part of the detection pin 42. One end of the short, thick cylindrical part of the detection pin 42 abuts against a pressure plate 44 through a spring 43. The long, thin cylindrical part of the detection pin 42 passes through the pressure plate 44 and is fixedly connected to the rear end 421 of the detection pin. A PCB board A 45 has a hole for fixing a contact 451. The rear end 421 of the detection pin passes through the fixed contact 451 and abuts against one end of a spring contact 461. The other end of the spring contact 461 is fixedly connected to PCB board B 46.

[0046] The rear end 421 of the detection needle is a heat shrink tubing.

[0047] There are multiple springs 43, which are arranged at equal intervals along the axial direction of the slender cylindrical probe 42.

[0048] Both the pin test mechanism 4 and the LED indicator 8 have 31 units, the same number, and are connected one-to-one. The arrangement satisfies both axial symmetry and central symmetry.

[0049] The installation position of the pin testing mechanism 4 on the outer casing 1 is the same as the pin position on the corresponding logging instrument.

[0050] Example 6 This utility model provides a logging instrument connector pin detection device, including a housing 1, which is a cylindrical structure with an internal cavity and two flat ends; a locking screw 5 is fixedly installed on the outside of the housing 1; an indicator panel 6 is fixedly installed on one end of the housing 1, and a power switch 7 and an LED indicator 8 are fixedly installed on the end of the indicator panel 6 facing the user; a wire harness 3 is inside the housing 1, and the LED indicator 8 is connected to the pin testing mechanism 4 through the wire harness 3; the pin testing mechanism 4 is fixedly installed on the other end of the housing 1; the number of LED indicators 8 and pin testing mechanisms 4 are equal and correspond one-to-one; the pin testing mechanism 4 is connected to the tester power supply 2 through the wire harness 3; the tester power supply 2 is installed in the internal cavity of the housing 1.

[0051] The pin testing mechanism 4 includes a pin holder 40. The pin holder 40 has a cylindrical groove at one end facing the outside of the outer shell 1. A detection pin 42 is provided along the axial direction of the cylindrical groove. The detection pin 42 is a short, thick cylindrical part with one end fixedly connected to a long, thin cylindrical part. The long, thin cylindrical part faces the inside of the outer shell 1. An insulating pad 41 is fixedly installed at the other end of the short, thick cylindrical part of the detection pin 42. One end of the short, thick cylindrical part of the detection pin 42 abuts against a pressure plate 44 through a spring 43. The long, thin cylindrical part of the detection pin 42 passes through the pressure plate 44 and is fixedly connected to the rear end 421 of the detection pin. A PCB board A 45 has a hole for fixing a contact 451. The rear end 421 of the detection pin passes through the fixed contact 451 and abuts against one end of a spring contact 461. The other end of the spring contact 461 is fixedly connected to PCB board B 46.

[0052] The rear end 421 of the detection needle is a heat shrink tubing.

[0053] There are multiple springs 43, which are arranged at equal intervals along the axial direction of the slender cylindrical probe 42.

[0054] Both the pin test mechanism 4 and the LED indicator 8 have 31 units, the same number, and are connected one-to-one. The arrangement satisfies both axial symmetry and central symmetry.

[0055] The installation position of the pin testing mechanism 4 on the outer casing 1 is the same as the pin position on the corresponding logging instrument.

[0056] Positioning holes 9 are fixedly installed on the indicator panel 6. The positioning holes 9 are arranged axially on the indicator panel with equal spacing, and the number and position are the same as those on the corresponding well logging instrument.

Claims

1. A detection device for connector pins of a logging instrument, characterized in that, Includes a housing (1), which is a cylindrical structure with an internal cavity and two flat ends; a locking screw (5) is fixedly installed on the outside of the housing (1); an indicator panel (6) is fixedly installed on one end of the housing (1), and a power switch (7) and an LED indicator (8) are fixedly installed on the end of the indicator panel (6) facing the user; a wire harness (3) is inside the housing (1); the LED indicator (8) is connected to the pin test mechanism (4) through the wire harness (3); the pin test mechanism (4) is fixedly installed on the other end of the housing (1); the number of LED indicators (8) and pin test mechanisms (4) are equal and correspond one-to-one; the pin test mechanism (4) is connected to the tester power supply (2) through the wire harness (3); the tester power supply (2) is installed in the internal cavity of the housing (1).

2. The logging instrument connector pin detection device according to claim 1, characterized in that, The pin testing mechanism (4) includes a pin seat (40). The pin seat (40) has a cylindrical groove at one end facing the outside of the outer shell (1). A detection pin (42) is provided along the axial direction of the cylindrical groove. The detection pin (42) is a short and thick cylindrical part with a long and thin cylindrical part fixedly connected to one end. The long and thin cylindrical part faces the inside of the outer shell (1). An insulating pad (41) is fixedly installed at the other end of the short and thick cylindrical part of the detection pin (42). One end of the short and thick cylindrical part of the detection pin (42) abuts against the pressure plate (44) through a spring (43). The long and thin cylindrical part of the detection pin (42) passes through the pressure plate (44) and is fixedly connected to the rear end (421) of the detection pin. The PCB board A (45) has a hole for fixing the contact (451). The rear end (421) of the detection pin passes through the fixed contact (451) and abuts against one end of the spring contact (461). The other end of the spring contact (461) is fixedly connected to the PCB board B (46).

3. The logging instrument connector pin detection device according to claim 2, characterized in that, The rear end (421) of the detection needle is a heat shrink tubing.

4. The logging instrument connector pin detection device according to claim 2, characterized in that, There are multiple springs (43), which are arranged at equal intervals along the axial direction of the slender cylindrical probe (42).

5. The logging instrument connector pin detection device according to claim 1, characterized in that, The pin test mechanism (4) and the LED indicator (8) are connected one-to-one, and their arrangement satisfies both axial symmetry and central symmetry.

6. The logging instrument connector pin detection device according to claim 1, characterized in that, The installation position of the insertion test mechanism (4) on the outer shell (1) is the same as the insertion position on the corresponding well logging instrument.

7. The logging instrument connector pin detection device according to claim 1, characterized in that, The other end of the outer casing (1) is fixedly installed with positioning holes (9), which are arranged axially on the indicator panel and are spaced equally.

8. The logging instrument connector pin detection device according to claim 7, characterized in that, The number of positioning holes (9) is the same as the number of positioning holes on the corresponding well logging instrument and their positions correspond.

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