A cable fault detector

By combining an internal threaded sleeve with a clamping element and an elastic sleeve design, the problem of unstable alligator clip connection is solved, enabling stable connection and convenient maintenance of the cable fault detector, and improving detection efficiency and accuracy.

CN224399526UActive Publication Date: 2026-06-23JIANGSU RUIDA ELECTRIC POWER EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU RUIDA ELECTRIC POWER EQUIPMENT CO LTD
Filing Date
2025-06-19
Publication Date
2026-06-23

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Abstract

The utility model discloses a cable fault detector, including box body and the detection appearance host computer of installing in the inside of box body, the box body is hinged with the box cover, be equipped with operating panel and the connecting jack on the detection appearance host computer, the inside of box body is provided with the placing groove, the inside placing of placing groove is equipped with the connecting line, one end of connecting line is equipped with the plug that coordinates with connecting jack. The utility model discloses through setting internal thread sleeve cooperation wire clamp spare use, and wire clamp spare passes through the cooperation of external thread connector and internal thread sleeve, and the firmness of connection is ensured, and the design of elastic sleeve makes two clamp blocks can tightly hold cable inner core wire, avoids the phenomenon of poor contact due to loosening, not only has improved the reliability of equipment, also is convenient to replace the damaged component alone, thereby has reduced maintenance cost, and the whole structure is compact and reasonable, convenient operation greatly improves the efficiency and accuracy of cable fault detection advantage.
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Description

Technical Field

[0001] This utility model relates to the field of cable fault detectors, and more specifically, to a cable fault detector. Background Technology

[0002] A cable fault detector is a comprehensive instrument for detecting cable faults. It can test for high-resistance flashover faults, high and low resistance grounding, short circuits, cable breaks, poor contact, and other faults in cables.

[0003] The testing instrument typically uses a connecting harness to connect to the wires. This requires cutting the wires to expose the inner core wires, and then using alligator clips on the connecting harness to connect the inner core wires one-to-one. However, using alligator clips can easily result in unstable engagement and an unstable connection. Furthermore, if the alligator clips are damaged, the entire harness needs to be replaced, which is costly. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a cable fault detector.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A cable fault detector includes a housing and a main unit installed inside the housing. The housing is hinged with a cover. The main unit is equipped with an operation panel and a connection socket. The housing has a placement slot inside, where a connecting wire is placed. One end of the connecting wire is equipped with a plug that mates with the connection socket. The other end of the connecting wire is equipped with a double connector. Each end of the double connector is equipped with an internal threaded sleeve, and a wire clamp is connected inside the internal threaded sleeve.

[0007] The clamping component includes an external threaded connector, two clamping blocks, and an elastic sleeve. The outer thread of the external threaded connector is connected to the inside of the internal threaded sleeve. Both clamping blocks are hinged to the external threaded connector. The elastic sleeve is fitted on the outside of the two clamping blocks and clamps them.

[0008] As a further description of the above technical solution: the elastic sleeve includes two sliders, two retractable sleeves and two springs. The two sliders are connected by the two retractable sleeves to form a square sleeve structure. The two springs are respectively sleeved on the outside of the two retractable sleeves, and the two springs elastically connect the two sliders.

[0009] As a further description of the above technical solution: a wire clamping block is fixedly connected to the end of each of the two clamping blocks away from the external threaded connector.

[0010] As a further description of the above technical solution: a triangular electrical block is fixedly installed between the opposite sides of the two clamping blocks, and the long sides of the two triangular electrical blocks are completely closed when they are properly aligned.

[0011] As a further description of the above technical solution: a handle block is hinged to the box cover, and a locking hole is provided on the handle block; a locking block that engages with the locking hole is fixedly installed on the front of the box body.

[0012] As a further description of the above technical solution: a first magnetic block is installed at the front of the box, and a second adsorption block is installed on the handle block to contact and adsorb with the first magnetic block.

[0013] Compared with existing technologies, the advantages of this utility model are:

[0014] This solution uses an internal threaded sleeve in conjunction with a wire clamp. The wire clamp, through the engagement of an external threaded connector with the internal threaded sleeve, ensures a secure connection. Simultaneously, the elastic sleeve design allows the two clamping blocks to tightly grip the cable core, preventing poor contact due to loosening. This not only improves the reliability of the equipment but also facilitates the individual replacement of damaged components, thereby reducing maintenance costs. The overall structure is compact and reasonable, and the operation is convenient, greatly improving the efficiency and accuracy of cable fault detection. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top view cross-sectional structural diagram of the present invention;

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure of section A in the middle;

[0018] Figure 4 This is a partial side view sectional structural diagram of the present invention.

[0019] Explanation of the labels in the diagram:

[0020] 1. Housing; 2. Detector main unit; 3. Housing cover; 31. Handle block; 311. Second suction block; 32. Clip hole; 4. Operation panel; 5. Connection socket; 6. Placement slot; 7. Connecting wire; 8. Plug; 9. Double connector; 10. Internal threaded sleeve; 11. Wire clamp; 111. External threaded connector; 112. Clamping block; 1121. Wire clamping block; 1122. Triangular connector; 113. Elastic sleeve; 1131. Slider; 1132. Telescopic sleeve; 1133. Spring; 12. Clip block; 13. First magnetic suction block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0022] Please see Figures 1-4 In this utility model, a cable fault detector includes a housing 1 and a detector host 2 installed inside the housing 1. A housing cover 3 is hinged to the housing 1. The detector host 2 is provided with an operation panel 4 and a connection socket 5. A placement groove 6 is opened inside the housing 1. A connecting wire 7 is placed inside the placement groove 6. One end of the connecting wire 7 is provided with a plug 8 that mates with the connection socket 5. The other end of the connecting wire 7 is provided with a double connector 9. Each end of the double connector 9 is provided with an internal threaded sleeve 10. A wire clamp 11 is connected inside the internal threaded sleeve 10.

[0023] The clamping component 11 includes an external threaded connector 111, two clamping blocks 112 and an elastic sleeve 113. The outer thread of the external threaded connector 111 is connected to the inside of the internal threaded sleeve 10. The two clamping blocks 112 are hinged to the external threaded connector 111. The elastic sleeve 113 is sleeved on the outside of the two clamping blocks 112 and clamps them.

[0024] In this invention, a protective shell is formed by combining the housing 1 with the cover 3 to protect the internal testing instrument host 2. During use, the cover 3 is opened, the connecting wire 7 is removed, and the plug 8 is inserted into the connecting socket 5. Then, the wire clamp 11 inside the internal threaded sleeve 10 of the double connector 9 is connected to the wire core. The elastic sleeve 113 is moved along the two clamping blocks 112 to one end near the external threaded connector 111, at which point the two clamping blocks 112 can open. The wire core is then placed between them, and the elastic sleeve 113 is pushed back to reset, causing the two clamping blocks 112 to clamp together and secure the wire core, thus achieving connection. The testing instrument host 2 can then be operated for cable testing. When the clamping block 112 is damaged and cannot connect the cable core, simply rotate the external threaded connector 111 to separate it from the internal threaded sleeve 10, and then replace it with a new one. There is no need to replace the entire connecting wire 7, thus achieving the characteristics of reduced maintenance costs and improved connection stability. This effectively solves the problems of unstable engagement, easy damage, and high replacement costs associated with traditional alligator clip connections.

[0025] Please see Figure 3 The elastic sleeve 113 includes two sliders 1131, two retractable sleeves 1132 and two springs 1133. The two sliders 1131 are connected by the two retractable sleeves 1132 to form a square sleeve structure. The two springs 1133 are respectively sleeved on the outside of the two retractable sleeves 1132, and the two springs 1133 elastically connect the two sliders 1131.

[0026] In this invention, the two sliders 1131 maintain an inward pulling force under the action of the spring 1133, so that the elastic sleeve 113 can be tightly fitted on the outside of the clamp 112. When it is necessary to open the clamp 112, the elastic sleeve 113 is pushed towards the inner threaded sleeve 10, stretching the spring 1133 and causing the telescopic sleeve 1132 to extend. At this time, the tightening force of the two sliders 1131 on the two clamps 112 is reduced, making it easier to insert the wire core. The elastic sleeve 113 is released, and the sliders 1131 are pushed back to their original position. Under the action of the restoring force of the spring 1133, the two clamps 112 close again to clamp the wire core, ensuring the reliability of the connection.

[0027] Please see Figure 3 and Figure 4 Among them, the ends of the two clamping blocks 112 that are away from the external threaded connector 111 are fixedly connected to the wire clamping block 1121.

[0028] In this utility model, the clamping effect of the clamping block 112 on the wire core is further enhanced by the setting of the clamping block 1121.

[0029] Please see Figure 3 Among them, a triangular junction block 1122 is fixedly installed between the two clamping blocks 112 on opposite sides, and the long side of the two triangular junction blocks 1122 is completely closed after they are properly aligned.

[0030] In this invention, the closed design of the two triangular contact blocks 1122 ensures a stable electrical connection when the wire core is clamped. The feature of its long side being completely closed not only improves conductivity but also effectively avoids problems such as poor contact or increased resistance, thereby ensuring the accuracy and stability of signal transmission during the detection process.

[0031] Please see Figure 1 and Figure 2 Among them: a handle block 31 is hinged to the cover 3, and a locking hole 32 is provided on the handle block 31. A locking block 12 that engages with the locking hole 32 is fixedly installed at the front of the box body 1.

[0032] In this utility model, the combination of handle block 31 and locking hole 32 allows the cover 3 to be securely closed on the box body 1. When it is necessary to open the cover 3, simply lift handle block 31 to disengage locking hole 32 from locking block 12. The operation is simple and convenient, which not only improves the overall sealing of the equipment, but also effectively prevents external dust or foreign objects from entering the box body 1, protecting the main unit 2 of the detector and the connecting cable 7 and other components from contamination or damage.

[0033] Please see Figure 1 and Figure 2 The box 1 is equipped with a first magnetic block 13 at the front and a second magnetic block 311 that contacts and adsorbs the first magnetic block 13 on the handle block 31.

[0034] In this invention, the design of the first magnetic block 13 and the second adsorption block 311 further enhances the stability of the lid 3 when it is closed. When the lid 3 is closed, the second adsorption block 311 will automatically adsorb onto the first magnetic block 13 to form a tight connection, effectively preventing the lid 3 from being accidentally opened due to external force or vibration.

[0035] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A cable fault detector, comprising a housing (1) and a detector host (2) installed inside the housing (1), characterized in that: The box body (1) is hinged with a box cover (3), the main unit of the detector (2) is provided with an operation panel (4) and a connection socket (5), the box body (1) is provided with a placement slot (6), the placement slot (6) is provided with a connecting wire (7), one end of the connecting wire (7) is provided with a plug (8) that mates with the connection socket (5), the other end of the connecting wire (7) is provided with a double connector (9), the ends of the double connector (9) are provided with an internal thread sleeve (10), and the internal thread sleeve (10) is connected with a wire clamp (11); The clamping member (11) includes an external threaded connector (111), two clamping blocks (112) and an elastic sleeve (113). The outer side of the external threaded connector (111) is threaded to the inside of the internal threaded sleeve (10). The two clamping blocks (112) are hinged to the external threaded connector (111). The elastic sleeve (113) is sleeved on the outside of the two clamping blocks (112) and clamps them.

2. The cable fault detector according to claim 1, characterized in that: The elastic sleeve (113) includes two sliders (1131), two retractable sleeves (1132), and two springs (1133). The two sliders (1131) are connected by the two retractable sleeves (1132) to form a square sleeve structure. The two springs (1133) are respectively sleeved on the outside of the two retractable sleeves (1132), and the two springs (1133) elastically connect the two sliders (1131).

3. The cable fault detector according to claim 1, characterized in that: Both clamping blocks (112) have a wire clamping block (1121) fixedly connected to the end away from the external threaded connector (111).

4. A cable fault detector according to claim 1, characterized in that: A triangular junction block (1122) is fixedly installed between the opposite sides of the two clamping blocks (112), and the long side of the two triangular junction blocks (1122) is completely closed after they are properly aligned.

5. A cable fault detector according to claim 1, characterized in that: A handle block (31) is hinged to the lid (3), and a locking hole (32) is provided on the handle block (31). A locking block (12) that engages with the locking hole (32) is fixedly installed at the front of the box body (1).

6. A cable fault detector according to claim 5, characterized in that: The front of the box (1) is equipped with a first magnetic block (13), and the handle block (31) is equipped with a second adsorption block (311) that is in contact with and adsorbed by the first magnetic block (13).