Locomotive air conditioner plug-in line fault detection device

Abstract

The utility model discloses locomotive air conditioner plug -in line fault detection device, including locomotive air conditioner portable tester and wiring terminal, the wiring terminal is located at the bottom of locomotive air conditioner portable tester, one side of wiring terminal is provided with wiring port and movable slot, the wiring port is used to connect the network cable, the movable slot is installed with sealing mechanism, and the sealing mechanism is sealed to the wiring port and is protected, sealing mechanism includes pull -out spare, the pull -out spare sets up in the inside of movable slot, the inside of movable slot is provided with a plurality of partition board, the partition board is slidably connected with pull -out spare, and every partition board all is set up with the penetration, the utility model discloses the physical sealing of sealing plate in sealing mechanism to the wiring port, can effectively block the dust, moisture, oil dirt and other impurities and enter the interface inside, avoid metal contact oxidation, corrosion or contact badly, significantly reduce the detection error or equipment failure because of interface pollution, prolong the service life of locomotive air conditioner portable tester.

Description

Technical Field

[0001] This utility model belongs to the field of plug-in cable fault detection technology, and in particular relates to a locomotive air conditioning plug-in cable fault detection device. Background Technology

[0002] In the maintenance and repair of locomotive air conditioning systems, the reliability of plug-in cable connections directly affects the operational stability of the air conditioning system. Therefore, specialized testing devices are needed to test parameters such as continuity and insulation performance of the plug-in cables. In existing technologies, locomotive air conditioning plug-in cable fault detection devices are typically equipped with multiple connection ports to connect different types of plug-in cables to complete diverse testing tasks.

[0003] However, these connectors are usually exposed when not in use. Due to the complex operating environment of locomotives, there are often pollutants such as dust, oil, and water vapor, which can easily cause the metal contacts inside the connectors to be corroded, oxidized, or contaminated with impurities. This can lead to problems such as poor contact during testing, interruption of data transmission, or increased error in test results. In severe cases, it can even damage the core circuit components of the testing device. Utility Model Content

[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:

[0005] A locomotive air conditioning plug-in cable fault detection device includes a locomotive air conditioning portable tester and a terminal block. The terminal block is located at the bottom of the locomotive air conditioning portable tester. One side of the terminal block is provided with a connection port and a movable groove. The connection port is used to connect a network cable. The movable groove is equipped with a sealing mechanism to seal and protect the connection port.

[0006] The sealing mechanism includes a pull member disposed inside a movable groove. The movable groove is provided with multiple partition plates, which are slidably connected to the pull member. Each partition plate has a through opening.

[0007] As a preferred embodiment of the above technical solution, a guide rod is fixedly connected to the leftmost partition plate. One end of the guide rod penetrates the side wall of the pull member and is fixedly connected to the movable groove. A spring is movably sleeved on the outer ring of the guide rod, and the two ends of the spring are fixedly connected to the movable groove and the pull member, respectively.

[0008] As a preferred embodiment of the above technical solution, a sealing plate is movably fitted on the inner ring of one side of the wiring port, a limit block is fixedly connected to the bottom of the sealing plate, and a pull block is fixedly connected to the top of the sealing plate, with the pull block extending out of the movable groove.

[0009] As a preferred embodiment of the above technical solution, the top of the pulling member is fixedly connected with multiple transmission paddles, each of which abuts against a limiting block.

[0010] As a preferred embodiment of the above technical solution, the inner ring of the pull-out block is movably fitted with a guide rod two, the two ends of the guide rod two are fixedly connected to the partition plate and the movable groove respectively, and the outer ring of the guide rod two is movably fitted with a spring two, the two ends of the spring two are fixedly connected to the partition plate and the pull-out block respectively.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model effectively prevents dust, moisture, oil and other impurities from entering the interface through the physical sealing of the sealing plate in the sealing mechanism, avoiding oxidation, corrosion or poor contact of metal contacts, significantly reducing detection errors or equipment failures caused by interface contamination, and extending the service life of the locomotive air conditioning portable tester.

[0013] 2. This utility model utilizes the linkage design of the pulling component and the transmission paddle to simultaneously open the sealing plates of multiple wiring ports with a single pull, eliminating the need for individual operation and greatly simplifying the preparation process before testing. It is especially suitable for scenarios where multiple interfaces work simultaneously, thus improving testing efficiency.

[0014] 3. The reset function of spring one and spring two in this utility model ensures that the sealing mechanism automatically restores the sealing state when not in use, eliminating the need for manual reset, reducing operation steps, and lowering the risk of interface exposure due to negligence.

[0015] 4. The guide rod one and guide rod two of this utility model constrain the movement trajectory of the pulling member and the pull block respectively, avoiding problems such as displacement and jamming of the components during the sliding process, and ensuring the stable operation of the sealing mechanism; the independent partition design of the partition plate reduces mutual interference between components, and the limiting block effectively prevents structural damage caused by excessive movement of the sealing plate, thus improving the overall durability and reliability of the device. Attached Figure Description

[0016] Figure 1 The diagram shown is a structural schematic of the locomotive air conditioning plug-in cable fault detection device in the embodiment.

[0017] Figure 2 The diagram shown is a structural schematic of the pull member in the embodiment;

[0018] Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram.

[0019] Explanation of reference numerals in the attached figures:

[0020] 10. Portable tester for locomotive air conditioning; 11. Terminal; 12. Wiring port; 13. Movable slot; 14. Divider plate; 15. Through-hole; 20. Pulling component; 21. Guide rod one; 22. Spring one; 23. Transmission paddle; 24. Sealing plate; 25. Limiting block; 26. Pull-out block; 27. Guide rod two; 28. Spring two. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0022] Example

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, the locomotive air conditioning plug-in cable fault detection device includes a locomotive air conditioning portable tester 10 and a terminal block 11. The terminal block 11 is located at the bottom of the locomotive air conditioning portable tester 10. A connection port 12 and a movable groove 13 are provided on one side of the terminal block 11. The connection port 12 is used to connect a network cable. The movable groove 13 is equipped with a sealing mechanism to seal and protect the connection port 12. The sealing mechanism includes a pull member 20, which is located inside the movable groove 13. Multiple partition plates 14 are provided inside the movable groove 13. The partition plates 14 are slidably connected to the pull member 20, and each partition plate 14 has a through opening 15.

[0024] Specifically, the portable locomotive air conditioning tester 10 adopts, but is not limited to, the HS-AI model, integrating a leakage current insulation detection module (such as HS-LJ602), which can measure the insulation resistance (≥100MΩ) and contact resistance (≤5mΩ) of plug-in wires, meeting the strict requirements of the railway industry for line safety. The connection port 12 provides an interface for plug-in wire connection detection, enabling data transmission during fault detection. The movable slot 13 provides installation space for the sealing mechanism, which can provide physical protection for the connection port 12. The partition plate 14 divides the interior of the movable slot into independent areas to avoid mutual interference between the sealing structures of different connection ports, while providing sliding support for the pull member 20. The through port 15 can be used to pass through connecting wires or provide a moving channel for internal structures (such as transmission components), ensuring coordinated movement of all components of the sealing mechanism.

[0025] like Figure 2 As shown, the leftmost partition plate 14 is fixedly connected to a guide rod 21. One end of the guide rod 21 passes through the side wall of the pull member 20 and is fixedly connected to the movable groove 13. A spring 22 is movably sleeved on the outer ring of the guide rod 21. The two ends of the spring 22 are fixedly connected to the movable groove 13 and the pull member 20, respectively.

[0026] Specifically, guide rod 21 restricts the sliding direction of pull member 20, ensuring that it moves only in a straight line to avoid deviation that could cause the sealing mechanism to jam. Spring 22 uses elastic potential energy to achieve automatic reset of pull member 20. When pull member 20 is pulled by external force, spring 22 rebounds when the external force is removed, driving pull member 20 back to its initial position, ensuring the sealing state of the sealing mechanism under normal conditions.

[0027] like Figure 2 and Figure 3 As shown, a sealing plate 24 is movably fitted on the inner ring of one side of the wiring port 12. A limit block 25 is fixedly connected to the bottom of the sealing plate 24, and a pull block 26 is fixedly connected to the top. The pull block 26 extends out of the outside of the movable groove 13.

[0028] It should be noted that when not in use, the sealing plate 24 is embedded in the inner ring of the wiring port 12, directly blocking dust, moisture and other impurities from entering the wiring port, protecting the internal metal contacts of the wiring port 12 from corrosion or contamination; the pull block 26 extends to the outside of the movable groove, making it convenient for users to operate manually. Pulling the pull block 26 opens the sealing plate 24, improving the ease of operation of the device; the limit block 25 limits the maximum movement distance of the sealing plate 24, preventing the sealing plate 24 from sliding excessively out of the wiring port 12 or colliding with other components, thus protecting the structural integrity.

[0029] like Figure 2 As shown, a plurality of transmission paddles 23 are fixedly connected to the top of the pull member 20, and each transmission paddle 23 abuts against a limit block 25.

[0030] It should be noted that the transmission paddle 23 serves as the force transmission medium. When the pulling member 20 is pulled, it synchronously drives the sealing plate 24 to move through the abutting limit block 25, achieving the effect of "single operation linkage of multiple sealing plates 24". This eliminates the need to manually open each sealing plate 24, reducing operation steps. It is especially suitable for scenarios with multiple wiring ports 12, greatly improving the preparation efficiency before testing.

[0031] like Figure 2 and Figure 3 As shown, the inner ring of the pull-out block 26 is movably fitted with a guide rod 27. The two ends of the guide rod 27 are fixedly connected to the partition plate 14 and the movable groove 13, respectively. The outer ring of the guide rod 27 is movably fitted with a spring 28. The two ends of the spring 28 are fixedly connected to the partition plate 14 and the pull-out block 26, respectively.

[0032] Specifically, guide rod 27 further constrains the movement trajectory of pull-out block 26 and sealing plate 24, ensuring that sealing plate 24 is accurately aligned with terminal 12, avoiding misalignment that could lead to poor sealing or inability to smoothly insert the locomotive air conditioning plug wire. Spring 28 provides auxiliary reset force: when the force of transmission lever 23 is removed, spring 28 pushes pull-out block 26 to reset, causing sealing plate 24 to re-embed into terminal 12, which, together with spring 22, strengthens the reliability of the seal, ensuring that terminal 12 is always in a sealed position when not in use.

[0033] It is in a closed and protected state.

[0034] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A locomotive air conditioning plug-in cable fault detection device, characterized in that, The device includes a portable tester for locomotive air conditioning (10) and a terminal block (11). The terminal block (11) is located at the bottom of the portable tester for locomotive air conditioning (10). A connection port (12) and a movable groove (13) are provided on one side of the terminal block (11). The connection port (12) is used to connect a network cable. The movable groove (13) is equipped with a sealing mechanism to seal and protect the connection port (12). The sealing mechanism includes a pull member (20), which is disposed inside the movable groove (13). The movable groove (13) is provided with a plurality of partition plates (14), which are slidably connected to the pull member (20), and each partition plate (14) is provided with a through opening (15).

2. The locomotive air conditioning plug-in cable fault detection device according to claim 1, characterized in that, The leftmost partition plate (14) is fixedly connected to a guide rod (21). One end of the guide rod (21) passes through the side wall of the pull member (20) and is fixedly connected to the movable groove (13). The outer ring of the guide rod (21) is movably fitted with a spring (22). The two ends of the spring (22) are fixedly connected to the movable groove (13) and the pull member (20) respectively.

3. The locomotive air conditioning plug-in cable fault detection device according to claim 1, characterized in that, A sealing plate (24) is movably fitted on the inner ring of one side of the wiring port (12). A limit block (25) is fixedly connected to the bottom of the sealing plate (24), and a pull block (26) is fixedly connected to the top. The pull block (26) extends out of the outside of the movable groove (13).

4. The locomotive air conditioning plug-in cable fault detection device according to claim 3, characterized in that, The top of the pull member (20) is fixedly connected with a plurality of transmission paddles (23), each of which abuts against a limiting block (25).

5. The locomotive air conditioning plug-in cable fault detection device according to claim 3, characterized in that, The inner ring of the pull-out block (26) is movably fitted with a guide rod two (27), the two ends of the guide rod two (27) are fixedly connected to the partition plate (14) and the movable groove (13) respectively, and the outer ring of the guide rod two (27) is movably fitted with a spring two (28), the two ends of the spring two (28) are fixedly connected to the partition plate (14) and the pull-out block (26) respectively.

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