Portable cable insulation fault rapid positioning instrument
By designing a portable cable insulation fault rapid location instrument, and adopting a shell structure and heat dissipation system, the problems of inconvenience in carrying the equipment in complex environments and easy damage were solved, and the equipment was able to be worn stably and measured with high precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHIHAI CHEM EQUIP ENG CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-05-15
AI Technical Summary
Existing cable fault location equipment is inconvenient to carry in complex working environments, is easily damaged, and is difficult to operate, affecting its service life and measurement accuracy.
A portable cable insulation fault rapid location device was designed, which adopts a first shell and a second shell structure, combined with an elastic wrist strap, clamp, and buckle to achieve stable wearing and rapid suspension of the device. It is equipped with a heat dissipation system and protective measures to enhance the durability and stability of the device.
This technology enables convenient portability and stable operation of the equipment in complex environments, improves the equipment's durability and measurement accuracy, and ensures stable operation of the equipment during long-term use.
Smart Images

Figure CN224247844U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable fault location technology, and in particular to a portable cable insulation fault rapid location instrument. Background Technology
[0002] The distance between the transmitted pulse and the reflected pulse in cable fault location testing is the distance from the test end to the fault point. Based on the traveling wave principle, online fault location technology uses the propagation time of the transient traveling wave between the fault point and the two ends of the cable to calculate the location of the fault point. Its advantages are short location time and high accuracy. It is applicable to various types of power cables and is also an important part of power system maintenance.
[0003] Existing technologies are inconvenient to carry in complex working environments, such as mountainous areas and underground cable tunnels. This may cause the equipment to be easily damaged during transportation, thus affecting its service life and measurement accuracy. In addition, the equipment requires both hands to operate, and when at heights, it may not be possible to free up both hands to perform other operations. This may restrict the freedom of movement of workers and increase the difficulty and time cost of the work. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage of not having a structure that is easy for users to carry, which makes it difficult for users to use the equipment normally in complex working environments. Therefore, we propose a portable cable insulation fault rapid location device.
[0005] To achieve the above objectives, this application adopts the following technical solution: a portable cable insulation fault rapid location device, comprising a first housing, a first elastic wristband rotatably connected to one side of the first housing via a pivot, the other end of the first elastic wristband being rotatably connected to the other side of the first housing via a pivot, a second housing installed inside the first housing, a first control top cover rotatably connected to one side of the second housing via a pivot, a fault location device body installed inside the second housing, a first pin groove fixedly connected to the top of one side of the second housing, one end of the first control top cover being inserted into the inner wall of the first pin groove, first extension blocks fixedly connected to both sides of the second housing, two first clamping blocks rotatably connected to both sides of the first housing via pivots, one end of the first clamping block being inserted into the inner wall of the first extension block, and a first buckle rotatably connected to one end of the first housing via a pivot.
[0006] Preferably, a first groove is provided on one side of the first extension block, and a first sliding buckle is slidably connected to the inner wall of the first groove, and the inner wall of the first sliding buckle is slidably connected to the surface of the first clamping block.
[0007] Preferably, one end of the first sliding buckle is provided with a first circular groove, and a first sliding rod is slidably connected to the inner wall of the first circular groove. The two ends of the first sliding rod are fixedly connected to the two sides of the inner wall of the first sliding groove.
[0008] Preferably, a first spring is fixedly connected to one side of the first sliding buckle, and the other end of the first spring is fixedly connected to one side of the inner wall of the first sliding groove.
[0009] Preferably, a first mounting groove is provided at one end of the interior of the second housing, a first heat-conducting block is installed at the bottom of the interior of the second housing, a first cooling fan is installed inside the first mounting groove, and a plurality of first exhaust fins are installed on both sides of the first housing.
[0010] Preferably, a plurality of first filters are installed inside the first housing.
[0011] Preferably, a first protective pad is installed on both sides of the inner wall of the second housing.
[0012] Technical effects and advantages of this utility model:
[0013] In this invention, the user can securely wear the locator on their arm via the first elastic wristband, and the user can securely mount the device on a belt or other carrying device via the first clip at one end of the first housing, further increasing the ease of use. When the user needs to locate insulation faults in cables, the locator can be quickly suspended in a suitable position by simply operating the first clip. The second housing and the first control top cover provide effective protection for the fault locator body, preventing damage or external interference during carrying or use, thus enhancing the durability and stability of the device.
[0014] In this invention, when the user uses the device for a long time, the fault locator body will generate heat and transfer it to the first heat-conducting block inside the first mounting slot. At this time, the first cooling fan will discharge the heat through the ventilation slot opened in the second housing and then through the first exhaust fins, effectively preventing the device from overheating and ensuring the stable operation of the device. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a vertical cross-sectional view of the present invention;
[0017] Figure 3 This is an exploded view of the internal structure of this utility model;
[0018] Figure 4 This is an exploded view of the first extension block of this utility model;
[0019] Figure 5 This is an exploded view of the second shell of this utility model.
[0020] Legend: 1. First housing; 2. First elastic wristband; 3. Second housing; 4. First control top cover; 5. Fault locator body; 6. First pin groove; 7. First extension block; 8. First clamping block; 9. First clip; 10. First sliding groove; 11. First sliding buckle; 12. First circular groove; 13. First sliding rod; 14. First spring; 15. First mounting groove; 16. First heat-conducting block; 17. First cooling fan; 18. First exhaust fin; 19. First filter screen; 20. First protective pad. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0022] Reference Figure 1 - Figure 5As shown, this utility model provides a technical solution: a portable cable insulation fault rapid location device, including a first housing 1, a first elastic wristband 2 rotatably connected to one side of the first housing 1 via a rotating shaft, the other end of the first elastic wristband 2 rotatably connected to the other side of the first housing 1 via a rotating shaft, a second housing 3 installed inside the first housing 1, a first control top cover 4 rotatably connected to one side of the second housing 3 via a rotating shaft, a fault location device body 5 installed inside the second housing 3, a first pin groove 6 fixedly connected to the top of one side of the second housing 3, and one end of the first control top cover 4 connected to the first... The inner wall of the first slot 6 is inserted into the first extension block 7, which is fixedly connected to both sides of the second housing 3. Two first clamping blocks 8 are rotatably connected to both sides of the first housing 1 via a pivot. One end of the first clamping block 8 is inserted into the inner wall of the first extension block 7. One end of the first housing 1 is rotatably connected to a first clip 9 via a pivot. After the user wears the device through the first elastic wristband 2, the fault location device body 5 is placed inside the second housing 3. Then, the first control top cover 4 is rotated via a pivot, causing the pin at one end of the first control top cover 4 to insert into the inner wall of the first slot 6, thus securing the first control top cover. After the cover 4 and the second housing 3 are closed, the user inserts the data connection cable at one end of the first control top cover 4 through the connection hole of the second housing 3 into the data connection hole of the fault locator body 5. At this time, after the user installs the second housing 3 into the inside of the first housing 1, the user rotates the first clamps 8 on both sides through the pivot, so that one end of the first clamp 8 is inserted into the inner wall of the first extension block 7, thus connecting the first housing 1 and the second housing 3 and fixing the position of the second housing 3. The user can wear the locator securely on the arm through the first elastic wrist strap 2, which is convenient for carrying and operation. The first clip 9 at one end of the first housing 1 allows the user to securely install the device on the belt or other carrying device, further increasing the convenience of use. When the user needs to locate the insulation fault of the cable, the locator can be quickly suspended in a suitable position by simply operating the first clip 9 without additional fixing tools or steps. The second housing 3 and the first control top cover 4 can provide effective protection for the fault locator body 5, avoiding damage or external interference during carrying or use, thus enhancing the durability and stability of the device.
[0023] Reference Figure 3 and Figure 4As shown in this embodiment: a first groove 10 is provided on one side of the first extension block 7, and a first sliding buckle 11 is slidably connected to the inner wall of the first groove 10. The inner wall of the first sliding buckle 11 is slidably connected to the surface of the first clamping block 8. When the user rotates the first clamping block 8 through the pivot, so that one end of the first clamping block 8 is inserted into the inner wall of the first extension block 7, the user moves the first sliding buckle 11 along the inner wall of the first groove 10, so that the first sliding buckle 11 restricts the first clamping blocks 8 on both sides. The restriction of the first sliding buckle 11 makes the insertion of the first clamping block 8 and the first extension block 7 more secure.
[0024] Reference Figure 3 and Figure 4 As shown in this embodiment: a first circular groove 12 is provided at one end of the first sliding buckle 11, and a first sliding rod 13 is slidably connected to the inner wall of the first circular groove 12. The two ends of the first sliding rod 13 are fixedly connected to the two sides of the inner wall of the first sliding groove 10. When the user moves the first sliding buckle 11 through the first circular groove 12 on the surface of the first sliding rod 13 against the inner wall of the first sliding groove 10, the movement of the first sliding buckle 11 becomes more stable.
[0025] Reference Figure 3 and Figure 4 As shown in this embodiment: a first spring 14 is fixedly connected to one side of the first sliding buckle 11, and the other end of the first spring 14 is fixedly connected to one side of the inner wall of the first slide groove 10. When the user moves the first sliding buckle 11 through the inner wall of the first slide groove 10 to release the restriction on the first clamping blocks 8 on both sides, the first sliding buckle 11 squeezes the first spring 14, causing the first spring 14 to store and compress. When the user is about to move the first sliding buckle 11 back to its original position, the user releases the first sliding buckle 11, causing the first spring 14 to release and push the first sliding buckle 11 back to its original position. The operation of the device is made simpler by the first spring 14.
[0026] Reference Figure 2 , Figure 3 and Figure 5 As shown in this embodiment: a first mounting groove 15 is provided at one end of the interior of the second housing 3, a first heat-conducting block 16 is installed at the bottom of the interior of the second housing 3, a first cooling fan 17 is installed inside the first mounting groove 15, and several first air vents 18 are installed on both sides of the first housing 1. When the user uses the device for a long time, the fault locator body 5 will generate heat and transfer it to the first heat-conducting block 16 inside the first mounting groove 15. At this time, the first cooling fan 17 will discharge the heat through the ventilation groove opened in the second housing 3 and then through the first air vents 18, effectively preventing the device from overheating and ensuring the stable operation of the device.
[0027] Reference Figure 2 , Figure 3 and Figure 5As shown in this embodiment: a plurality of first filters 19 are installed inside the first housing 1. When the first cooling fan 17 dissipates the heat emitted by the fault location instrument body 5 through the first heat conduction block 16, the first filters 19 inside the first housing 1 can effectively prevent external dust and debris from entering the interior of the first housing 1, thus avoiding affecting the heat dissipation effect of the first cooling fan 17 and the first heat conduction block 16. At the same time, it also protects other precision components inside from interference from the external environment, ensuring the long-term stable operation of the equipment. The design of the first filters 19 also takes into account the characteristics of easy disassembly and cleaning, so that users can easily maintain them during use.
[0028] Reference Figure 2 , Figure 3 and Figure 5 As shown in this embodiment: First protective pads 20 are installed on both sides of the inner wall of the second housing 3. When the user installs the fault locator body 5 into the interior of the second housing 3, the first protective pads 20 on both sides of the inner wall of the second housing 3 can securely fix the fault locator body 5 inside the second housing 3, making it less prone to shaking or falling off. This not only improves the stability and safety of the equipment, but also makes it easier for the user to operate and maintain the equipment. The material and structural design of the first protective pads 20 also fully consider durability and comfort, ensuring that the fault locator body 5 or the second housing 3 will not be damaged during long-term use.
[0029] Working principle:
[0030] Step 1: The user first puts the device on their arm using the first elastic wristband 2. Then, the fault locator body 5 is placed inside the second housing 3. The first control top cover 4 is rotated via a pivot, causing one end of its pin to engage with the inner wall of the first pin groove 6, thus closing the first control top cover 4 and the second housing 3. After closing, the data connection cable at one end of the first control top cover 4 is connected to the data connection hole of the fault locator body 5 through the connection hole of the second housing 3. The second housing 3 is then installed inside the first housing 1. By rotating the first clamps 8 on both sides, one end of each clamp engages with the inner wall of the first extension block 7, thus connecting the first housing 1 and the second housing 3 and fixing the position of the second housing 3. The user can securely wear the locator on their arm using the first elastic wristband 2, making it easy to carry and operate. Using the first clip 9 at one end of the first housing 1, the device can also be securely mounted on a belt or other carrying device, further increasing ease of use. When it is necessary to locate insulation faults in cables, the user can quickly suspend the locator in a suitable position by simply operating the first clip 9, without the need for additional fixing tools or steps.
[0031] Step two: When the user rotates the first clamping block 8 through the pivot so that one end of it is inserted into the inner wall of the first extension block 7, the first sliding buckle 11 is then moved along the inner wall of the first sliding groove 10. Through the limiting effect of the first sliding buckle 11, the insertion of the first clamping blocks 8 on both sides into the first extension block 7 is more secure. When the first sliding buckle 11 is moved, it slides along the inner wall of the first sliding groove 10 through the first circular groove 12 on the surface of the first sliding rod 13, ensuring that the movement of the first sliding buckle 11 is more stable. When the user needs to release the restriction on the first clamping blocks 8 on both sides, the first sliding buckle 11 is moved in the opposite direction along the inner wall of the first sliding groove 10. At this time, the first sliding buckle 11 squeezes the first spring 14, causing the first spring 14 to store and compress. When the user is ready to move the first sliding buckle 11 back to its original position, he only needs to release the first sliding buckle 11, and the first spring 14 releases its rebound force, pushing the first sliding buckle 11 back to its original position automatically.
[0032] Step 3: When the user uses the device for a long time, the heat generated by the fault locator body 5 will be transferred to the first heat-conducting block 16 in the first mounting slot 15. The first cooling fan 17 will exhaust the heat through the ventilation slots and the first exhaust fins 18 on the second housing 3, effectively preventing the device from overheating and ensuring its stable operation. During the heat dissipation process, the first heat-conducting block 16 conducts the heat emitted by the fault locator body 5 to the first cooling fan 17. The first filter 19 inside the first housing 1 can effectively prevent external dust and debris from entering the interior of the first housing 1, avoiding affecting the heat dissipation effect. At the same time, it protects other precision components inside from external interference, ensuring the long-term stable operation of the device. The design of the first filter 19 is easy to disassemble and clean, making it convenient for user maintenance. After the user installs the fault locator body 5 into the interior of the second housing 3, the first protective pads 20 on both sides of the inner wall of the second housing 3 can firmly fix the fault locator body 5, preventing it from shaking or falling off, improving the stability and safety of the device. The material and structural design of the first protective pad 20 take into account both durability and comfort.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A portable cable insulation fault rapid location device, comprising a first housing (1), characterized in that: One side of the first housing (1) is rotatably connected to a first elastic wristband (2) via a pivot. The other end of the first elastic wristband (2) is rotatably connected to the other side of the first housing (1) via a pivot. A second housing (3) is installed inside the first housing (1). One side of the second housing (3) is rotatably connected to a first control top cover (4) via a pivot. The fault locator body (5) is installed inside the second housing (3). A first pin groove (6) is fixedly connected to the top of one side of the second housing (3). One end of the first control top cover (4) is inserted into the inner wall of the first pin groove (6). A first extension block (7) is fixedly connected to both sides of the second housing (3). Two first clamping blocks (8) are rotatably connected to both sides of the first housing (1) via a pivot. One end of the first clamping block (8) is inserted into the inner wall of the first extension block (7). A first buckle (9) is rotatably connected to one end of the first housing (1) via a pivot.
2. The portable cable insulation fault rapid location instrument according to claim 1, characterized in that: A first groove (10) is provided on one side of the first extension block (7), and a first sliding buckle (11) is slidably connected to the inner wall of the first groove (10), and the inner wall of the first sliding buckle (11) is slidably connected to the surface of the first clamping block (8).
3. The portable cable insulation fault rapid location instrument according to claim 2, characterized in that: One end of the first sliding buckle (11) is provided with a first circular groove (12), and the inner wall of the first circular groove (12) is slidably connected with a first sliding rod (13), and the two ends of the first sliding rod (13) are fixedly connected to the two sides of the inner wall of the first sliding groove (10).
4. The portable cable insulation fault rapid location instrument according to claim 2, characterized in that: A first spring (14) is fixedly connected to one side of the first sliding buckle (11), and the other end of the first spring (14) is fixedly connected to one side of the inner wall of the first sliding groove (10).
5. A portable cable insulation fault rapid location device according to claim 1, characterized in that: The second housing (3) has a first mounting groove (15) at one end, a first heat-conducting block (16) is installed at the bottom of the second housing (3), a first cooling fan (17) is installed inside the first mounting groove (15), and several first air vents (18) are installed on both sides of the first housing (1).
6. The portable cable insulation fault rapid location instrument according to claim 1, characterized in that: The first housing (1) has several first filters (19) installed inside.
7. A portable cable insulation fault rapid location device according to claim 1, characterized in that: The second housing (3) has a first protective pad (20) installed on both sides of the inner wall.