Detection probe for live line detection
By designing a sliding detection probe mechanism and an elastic fixing structure, the problem of the detection probe being difficult to adapt to different distances and heights is solved, realizing flexible adjustment and protection functions, and improving detection efficiency and equipment lifespan.
Patent Information
- Application Number
- CN202520952259.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-15
- Publication Date
- 2026-05-05
- Estimated Expiration
- 2035-05-15
AI Technical Summary
Most existing detection probes use a fixed length structure, which makes it difficult to accurately adapt to detection points of different distances and heights, resulting in low detection efficiency.
A detection probe for live line testing was designed. It adopts a cylindrical structure with a built-in sliding detection mechanism. The length can be flexibly adjusted and fixed through a locking post and spring structure. Combined with the ability to be inverted and suspended in the air to protect the equipment and avoid mechanical damage and environmental corrosion.
The flexible length adjustment of the detection probe has been achieved, which improves the applicability and versatility of the equipment, extends the life of components, reduces the frequency of maintenance, and maintains stable equipment performance.
Smart Images

Figure CN224203275U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of line testing devices, and in particular to a testing probe for testing live lines. Background Technology
[0002] During the stable operation of a power system, live lines, as the key carriers of power transmission, directly affect the safety and stability of the entire power grid. With the continuous growth of society's demand for electricity, the power grid is constantly expanding in scale and becoming increasingly complex in structure. The coverage of live lines is also becoming wider and wider, including not only the crisscrossing underground cables and densely erected transmission lines in cities, but also long-distance overhead lines in remote mountainous areas and vast wilderness areas. During long-term operation, these lines may develop potential faults due to various factors such as environmental erosion, mechanical wear, and electrical aging, such as insulator aging, broken conductor strands, and overheating of joints. If these potential faults are not detected and dealt with in time, they may cause short circuits, grounding faults, or even large-scale power outages, seriously affecting the normal power supply order in various fields such as industrial production and residential life. Therefore, real-time, efficient, and accurate status monitoring of live lines to detect and eliminate potential faults in a timely manner is a key link in ensuring the stable operation of the power system and improving the reliability of power supply, and it is also an important foundation for maintaining the stable development of the social economy.
[0003] Most existing detection probes use a fixed-length structure. When faced with complex and diverse power facility layouts, fixed-length detection probes cannot accurately adapt to detection points at different distances and heights, resulting in low detection efficiency. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a detection probe for live line testing, which solves the technical problem that most existing detection probes use a fixed length structure. When faced with complex and diverse power facility layouts, the fixed length detection probe is difficult to accurately adapt to detection points of different distances and heights, resulting in low detection efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A detection probe for live line testing includes a cylindrical body, a gripping part fixedly installed on the side wall of the cylindrical body, an internal cavity opened at the end of the cylindrical body away from the gripping part, a strip-shaped groove opened at the upper end of the cylindrical body, and a slot opened in the inner wall of the strip-shaped groove.
[0007] A detection mechanism is slidably installed inside the built-in cavity;
[0008] The detection mechanism includes a detection body, which is slidably installed in the built-in cavity. A connecting line is fixedly installed on the detection body, and the detection body is connected to the cylinder through the connecting line.
[0009] Preferably, a locking post is fixedly installed at the upper end of the detection body, and the locking post is adapted to the strip groove and the locking slot.
[0010] Preferably, a detection probe is fixedly installed on the side wall of the detection body.
[0011] Preferably, fixing strips are symmetrically fixedly installed on the upper end of the cylinder.
[0012] Preferably, a placement rack is fixedly installed at the upper end of both fixing strips.
[0013] Preferably, a sliding strip is provided between the two fixing strips, and the sliding strip is located directly above the strip groove.
[0014] Preferably, an arc-shaped column is symmetrically fixed between the slide bar and the fixing bar, and the two ends of the slide bar are slidably mounted on the two arc-shaped columns respectively.
[0015] Preferably, springs are symmetrically fitted on both of the arc-shaped columns, and the two ends of the two sets of springs are respectively fixedly connected to two fixing strips and a sliding strip.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. This equipment can be flexibly adjusted in length and then fixed by an elastic structure, which can meet diverse usage needs, significantly improve the applicability and versatility of the equipment, and facilitate testing work in different scenarios.
[0018] Second, after the equipment is used, the detection probe can be protected to effectively resist external mechanical damage and environmental corrosion, reduce the risk of component damage, reduce the frequency of maintenance and replacement, and ensure the stable performance of the detection probe.
[0019] Third, inverting the equipment so that the bottom is suspended in the air can prevent dirt, sharp objects and other contaminants from the ground from contaminating and damaging the bottom of the equipment, facilitate heat dissipation, extend the overall service life of the equipment, maintain good appearance and performance, and facilitate inspection and maintenance. Attached Figure Description
[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is an exploded view of the detection body of this utility model.
[0023] Figure 3 This is a structural diagram of the detection probe of this utility model;
[0024] Figure 4 This is an exploded structural diagram of the slider connection of this utility model.
[0025] Legend: 11. Cylinder; 12. Holding part; 13. Internal cavity; 14. Strip groove; 15. Slot; 16. Detector; 17. Snap pin; 18. Detection probe; 19. Connecting wire; 21. Fixing strip; 22. Placement rack; 23. Sliding bar; 24. Arc-shaped column; 25. Spring. Detailed Implementation
[0026] This application provides a detection probe for live line testing, which effectively solves the problem that most existing detection probes use a fixed length structure. When faced with complex and diverse power facility layouts, the fixed length detection probe is difficult to accurately adapt to detection points at different distances and heights, resulting in low detection efficiency. This device can flexibly adjust the length and fix it with an elastic structure after adjustment, which can meet diverse usage needs, significantly improve the applicability and versatility of the device, and facilitate detection work in different scenarios.
[0027] Example
[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that most existing detection probes adopt a fixed length structure. When facing complex and diverse power facility layouts, the fixed length detection probe is difficult to accurately adapt to detection points of different distances and heights, resulting in low detection efficiency. The overall idea is as follows: A detection probe for live line detection includes a cylinder 11. A gripping part 12 is fixedly installed on the side wall of the cylinder 11. An internal cavity 13 is opened on the end of the cylinder 11 away from the gripping part 12. A strip groove 14 is opened at the upper end of the cylinder 11. A slot 15 is opened in the inner wall of the strip groove 14. A detection mechanism is slidably installed inside the internal cavity 13.
[0029] The testing mechanism includes a testing body 16, which is slidably installed in the built-in cavity 13. A connecting line 19 is fixedly installed on the testing body 16, and the testing body 16 is connected to the cylinder 11 through the connecting line 19. A locking post 17 is fixedly installed at the upper end of the testing body 16, and the locking post 17 is adapted to the strip groove 14 and the locking slot 15. A testing probe 18 is fixedly installed on the side wall of the testing body 16. After use, the first step can be repeated to lock the locking post 17 into the last locking slot 15. At this time, the testing body 16 and the testing probe 18 will be retracted into the cylinder 11. The cylinder 11 can protect the testing body 16 and the testing probe 18 from mechanical damage such as collision, friction, and squeezing, as well as from environmental factors such as dust, moisture, and corrosive substances. This extends the service life of the testing body 16 and the testing probe 18, ensures the stable performance of the testing probe, and reduces the frequency of repair or replacement due to component damage.
[0030] The upper end of the cylinder 11 is symmetrically fixed with fixing strips 21, and the upper end of each of the two fixing strips 21 is fixed with a placement rack 22. When placing, the equipment can be inverted so that the two placement racks 22 are in contact with the ground, so that the entire equipment is suspended in the air and its bottom will not be in direct contact with the ground. This can effectively prevent dirt, water stains, sharp objects, etc. on the ground from causing pollution, wear or damage to the bottom of the equipment, extend the service life of the equipment, and maintain the good appearance and performance of the equipment.
[0031] A slider 23 is provided between the two fixed bars 21, and the slider 23 is located directly above the strip groove 14. Arc-shaped columns 24 are symmetrically fixed between the slider 23 and the fixed bars 21. The two ends of the slider 23 are slidably mounted on the two arc-shaped columns 24, respectively. Springs 25 are symmetrically sleeved on both arc-shaped columns 24. The two sets of springs 25 are fixedly connected at both ends to the two fixed bars 21 and the slider 23, respectively. When the length needs to be adjusted during testing, the grip part 12 can be held and the testing body 16 rotated counterclockwise. The rotation of the testing body 16 will drive... The locking pin 17 slides into the slot 14 from the locking groove 15. At this time, the slide bar 23 will slide counterclockwise on the two arc-shaped pins 24 under the action of the squeezing force. At this time, the two sets of springs 25 will deform and generate elastic force. Then, the detection body 16 can be moved outward inside the cylinder 11. After moving to a suitable length, the slide bar 23 can be reset again by the elastic force of the spring 25, and the locking pin 17 will be snapped into the locking groove 15 to complete the fixation. This makes the overall length of the device easy to adjust during use, meets diverse usage requirements, and improves the applicability and versatility of the device.
[0032] To address the problems existing in the prior art, this utility model provides a detection probe for live circuit testing. This device can flexibly adjust its length and is fixed by an elastic structure after adjustment, which can meet diverse usage needs, significantly improve the applicability and versatility of the device, and facilitate testing work in different scenarios.
[0033] in:
[0034] Cylinder 11: Made of high-strength insulating engineering plastic (such as polycarbonate PC or nylon PA), cylindrical in shape with smooth inner wall, and outer diameter designed according to actual use requirements to ensure sufficient strength and insulation performance;
[0035] Grip part 12: It is fixedly installed on the side wall of the cylinder 11, made of rubber, with anti-slip texture on the surface, and its shape conforms to the ergonomic design for easy gripping;
[0036] Detection body 16: Made of insulating material (such as epoxy resin), with connecting wire 19 fixedly installed on the detection body 16. The connecting wire 19 is made of high temperature resistant and wear resistant insulated wire. One end is connected to the detection circuit inside the detection body 16, and the other end passes through the cylinder 11 to connect to the external detection equipment. A certain length of extension allowance is reserved inside the cylinder 11 for the connecting wire 19 to avoid damage to the line due to sliding and pulling of the detection body 16.
[0037] 17: Fixedly installed on the upper end of the detection body 16, with a diameter that matches the strip groove 14 and the slot 15;
[0038] Detection probe 18: Fixedly installed on the side wall of the detection body 16. The corresponding sensor probe is selected according to the detection function (such as voltage detection, current detection, etc.). The probe surface is covered with an insulating protective sleeve. The protective sleeve is made of high temperature and high pressure resistant silicone rubber material. The detection probe 18 is connected to the internal circuit of the detection body 16 by welding or threaded connection to ensure stable signal transmission.
[0039] Fixing strip 21: Symmetrically fixedly installed on the upper end of the cylinder 11, the fixing strip 21 is fixedly connected to the cylinder 11 by bolts or welding to ensure that it can bear the weight of the equipment when the equipment is placed upside down;
[0040] Placement rack 22: It is fixedly installed on the upper end of two fixing strips 21, and the bottom is provided with an anti-slip pad made of rubber.
[0041] Slide 23: It is set between two fixed strips 21, directly above the strip groove 14, and its length is adapted to the distance between the two fixed strips 21;
[0042] Arc-shaped column 24: The arc matches the sliding trajectory of slider 23;
[0043] Spring 25: The spring constant is designed according to the weight of the detection body 16 and the adjustment force requirements.
[0044] Working principle:
[0045] The first step is to adjust the length during testing. Hold the grip 12 and rotate the testing body 16 counterclockwise. The rotation of the testing body 16 will cause the locking pin 17 to slide from the locking groove 15 into the strip groove 14. At this time, the slide bar 23 will slide counterclockwise on the two arc-shaped pillars 24 under the action of the squeezing force. At this time, the two sets of springs 25 will deform and generate elastic force. Then, the testing body 16 can be moved outward inside the cylinder 11. After moving to the appropriate length, the elastic force of the spring 25 can drive the slide bar 23 to reset and the locking pin 17 will spring into the locking groove 15 to complete the fixation. This makes the overall length of the device easy to adjust during use, meets diverse usage requirements, and improves the applicability and versatility of the device.
[0046] The second step is to repeat the first step and insert the locking post 17 into the last locking slot 15. At this time, the detection body 16 and the detection probe 18 will be retracted into the cylinder 11. The cylinder 11 can protect the detection body 16 and the detection probe 18 from mechanical damage such as collision, friction, and squeezing, as well as environmental factors such as dust, moisture, and corrosive substances. This extends the service life of the detection body 16 and the detection probe 18, ensures the stable performance of the detection probe, and reduces the frequency of repair or replacement due to component damage.
[0047] Third, when placing the equipment, it can be inverted so that the two placement racks 22 are in contact with the ground, thereby suspending the entire equipment in the air. Its bottom will not directly contact the ground, which can effectively prevent stains, water stains, sharp objects, etc. on the ground from causing pollution, wear or damage to the bottom of the equipment, extending the service life of the equipment and maintaining the good appearance and performance of the equipment.
[0048] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A detection probe for live circuit testing, comprising a cylindrical body (11), wherein a gripping part (12) is fixedly installed on the side wall of the cylindrical body (11), and an internal cavity (13) is formed at one end of the cylindrical body (11) away from the gripping part (12), characterized in that, The upper end of the cylinder (11) is provided with a strip groove (14), and the inner wall of the strip groove (14) is provided with a slot (15); A detection mechanism is slidably installed inside the built-in cavity (13); The detection mechanism includes a detection body (16), which is slidably installed in the built-in cavity (13). A connecting line (19) is fixedly installed on the detection body (16), and the detection body (16) is connected to the cylinder (11) through the connecting line (19).
2. The detection probe for live circuit testing as described in claim 1, characterized in that, The upper end of the detection body (16) is fixedly installed with a locking post (17), which is adapted to the strip groove (14) and the slot (15).
3. A detection probe for live circuit testing as described in claim 2, characterized in that, A detection probe (18) is fixedly installed on the side wall of the detection body (16).
4. A detection probe for live circuit testing as described in claim 1, characterized in that, Fixing strips (21) are symmetrically fixedly installed at the upper end of the cylinder (11).
5. A detection probe for live circuit testing as described in claim 4, characterized in that, Each of the two fixing strips (21) has a placement rack (22) fixedly installed at its upper end.
6. A detection probe for live-line testing as described in claim 5, characterized in that, A slide bar (23) is provided between the two fixed bars (21), and the slide bar (23) is located directly above the strip groove (14).
7. A detection probe for live-line testing as described in claim 6, characterized in that, An arc-shaped column (24) is symmetrically fixed between the slide bar (23) and the fixing bar (21), and the two ends of the slide bar (23) are respectively slidably installed on the two arc-shaped columns (24).
8. A detection probe for live circuit testing as described in claim 7, characterized in that, Springs (25) are symmetrically fitted on both of the two arc-shaped columns (24), and the two ends of the two sets of springs (25) are fixedly connected to two fixing bars (21) and a slider (23) respectively.
