Grounding line state detector for power transmission line
By introducing a liftable protective cover and a winding rod into the power transmission line grounding wire status detector, the problem of inconvenient operation of the detector when the instrument is tilted down has been solved, resulting in a more comfortable and stable testing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 付浩源
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-05
AI Technical Summary
When testing the grounding wire status of existing transmission lines, the testing instruments require the user to bend over, which is inconvenient, uncomfortable, and tiring.
A liftable protective cover was designed to serve as a simple workbench, supporting testing instruments to reduce the need for bending over during operation, and using a winding rod to store wires, preventing them from being dragged or falling off.
It improves comfort during testing, reduces head fatigue, and ensures the stability and convenience of the testing process.
Smart Images
Figure CN224328171U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of power testing equipment, specifically relating to a grounding wire status detector for power transmission lines. Background Technology
[0002] The grounding wire of a transmission line is a core device for ensuring the safe operation of a power system. When a transmission line or equipment leaks current, the grounding wire can quickly conduct the current to the ground to prevent people from being electrocuted. The grounding wire can also conduct lightning or fault current to the ground to prevent lightning, overvoltage or short circuit current from damaging the transmission equipment. Its condition is directly related to the lightning protection performance, short circuit protection capability and personal safety of the line. Therefore, the condition of the grounding wire of the transmission line usually needs to be inspected regularly.
[0003] However, currently, grounding resistance testers are typically used to test the grounding wire status of transmission lines. These testers usually need to be removed from their storage cases. Since the testing site lacks workbenches and other tools, the instrument is often placed on the surface of the storage case, which is quite low. This forces testers to bend down significantly to operate the instrument, causing considerable inconvenience. Therefore, this applicant proposes a transmission line grounding wire status tester to address these issues. Utility Model Content
[0004] The purpose of this utility model is to provide a grounding wire status detector for power transmission lines. The protective cover is liftable, replacing the traditional flip-top type. The protective cover can be easily lifted to form a simple workbench, which allows the tester to operate the grounding resistance tester without having to bend over significantly, thus improving the comfort of use, reducing head fatigue, and bringing more convenience to the user.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] The power transmission line grounding wire condition detector includes:
[0007] Storage box mechanism and cover plate mechanism assembled on the top of the storage box mechanism;
[0008] The storage box mechanism includes a box body, inside which a grounding resistance tester is placed, and sliding grooves are provided on both sides of the box body;
[0009] The cover plate mechanism includes a movable frame that is slidably installed in the slide groove. A telescopic rod is sleeved on the top of the movable frame. A protective cover is fixedly installed on the top of the telescopic rod. A storage groove is opened on the top of the protective cover. A rotating seat is rotatably installed inside the storage groove. A winding rod is fixedly installed at one end of the rotating seat.
[0010] Preferably, locking posts extending into the sliding grooves are slidably installed on both sides of the housing, the locking posts are engaged with the bottom of the movable frame, and the movable frame is fixed to the telescopic rod by fixing bolts.
[0011] Preferably, a thrust spring is fixedly installed between the locking posts, and an operating handle extending out of the housing is fixedly installed on one side of the locking post.
[0012] Preferably, the interior of the housing has a first storage compartment for placing the grounding resistance tester, and the sides of the first storage compartment have retrieval slots.
[0013] Preferably, a second storage compartment is provided inside the box on one side of the first storage compartment, and a handle is fixedly installed at the front end of the box.
[0014] Preferably, the top of the protective cover has a placement slot, which is located at the front end of the storage slot, and the protective cover is fixed to the box body by a fixing knob.
[0015] Preferably, a first magnetic block corresponding to the rotating seat is embedded in the bottom of the storage slot, and a second magnetic block corresponding to the rotating seat is embedded in the inner wall of the storage slot.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] (1) This utility model is equipped with a cover plate mechanism, which can extend upward along both sides of the box through the movable frame and telescopic rod, making it easy to lift the protective cover vertically. This allows the protective cover to form a simple workbench effect, which can easily support the ground resistance tester at a higher position. This allows the tester to operate the ground resistance tester without having to bend down a lot, effectively improving the comfort of use, reducing head fatigue, and bringing more convenience to the user.
[0018] (2) The present invention has a winding rod on the protective cover, which can be used to wind the test wires on the winding rod during the process of using the ground resistance tester to test the grounding wires of the transmission line. It can wind up the excessively long wires, avoid dragging during the test, and prevent the plug from falling off the ground resistance tester. It can ensure that the test process is stable and is not prone to interruption. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the storage structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the unfolded structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the cover plate mechanism of this utility model;
[0022] Figure 4 This is a cross-sectional view of the storage slot of this utility model;
[0023] Figure 5 This is a schematic diagram of the storage box mechanism of this utility model;
[0024] Figure 6 This is a schematic cross-sectional view of the side of the box body of this utility model;
[0025] In the diagram: 1. Cover plate mechanism; 11. Protective cover; 12. Placement slot; 13. Fixing knob; 14. Movable frame; 15. Fixing bolt; 16. Telescopic rod; 17. Storage slot; 18. Rotating seat; 19. Winding rod; 110. First magnetic block; 111. Second magnetic block; 2. Storage box mechanism; 21. Box body; 22. Handle; 23. Slide groove; 24. Locking post; 25. Operating handle; 26. First storage slot; 27. Retrieval slot; 28. Second storage slot; 29. Thrust spring; 3. Grounding resistance tester. Detailed Implementation
[0026] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0029] Example 1:
[0030] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the power transmission line grounding wire status detector includes:
[0031] Storage box mechanism 2 and cover plate mechanism 1 assembled on the top of storage box mechanism 2;
[0032] The storage box mechanism 2 includes a box body 21, inside which a grounding resistance tester 3 is placed, and sliding grooves 23 are provided on both sides of the box body 21.
[0033] The cover plate mechanism 1 includes a movable frame 14 that is slidably installed in the slide groove 23. A telescopic rod 16 is sleeved on the top of the movable frame 14. A protective cover 11 is fixedly installed on the top of the telescopic rod 16. A storage groove 17 is opened on the top of the protective cover 11. A rotating seat 18 is rotatably installed inside the storage groove 17. A winding rod 19 is fixedly installed at one end of the rotating seat 18.
[0034] As can be seen from the above, when using this device, it is carried to a suitable location at the test site, and the box 21 is placed flat on the ground for support. The movable frame 14 slides upward along the slide groove 23, and the telescopic rod 16 slides upward at the same time, which can form a two-stage telescopic effect. This makes it easy to raise the protective cover 11 to a higher position. By taking the ground resistance tester 3 out of the box 21 and placing the ground resistance tester 3 on the protective cover 11, the protective cover 11 can form a simple workbench, which is convenient for supporting the ground resistance tester 3. This allows the tester to operate the ground resistance tester 3 without having to bend down a lot, which can effectively improve the comfort of use, reduce head fatigue, and bring more convenience to the user.
[0035] By flipping the rotating seat 18, the winding rod 19 can be flipped out of the storage slot 17, so that the winding rod 19 can be erected in a vertical state. During the process of using the ground resistance tester 3 to test the grounding wire of the transmission line, the test wire can be wound around the winding rod 19. Excessively long wires can be wound up, which can prevent dragging during the test and prevent the plug from falling off the ground resistance tester 3. This can ensure that the test process is stable and less likely to be interrupted.
[0036] After use, the movable frame 14 can be slid into the slide groove 23 for storage, and the telescopic rod 16 can be slid into the movable frame 14 for storage. The protective cover 11 can be easily reattached to the top of the box 21, and the grounding resistance tester 3 can be easily placed into the box 21 for carrying.
[0037] Depend on Figure 2 , Figure 3 and Figure 5 It can be seen that locking posts 24 extending into the slide groove 23 are slidably installed on both sides of the box body 21. The locking posts 24 are engaged with the bottom of the movable frame 14. The movable frame 14 and the telescopic rod 16 are fixed by fixing bolts 15.
[0038] As can be seen from the above, when the movable frame 14 is moved to the top of the locking post 24, the locking post 24 can be extended into the slide groove 23. The locking post 24 can be used to support the movable frame 14, so that the protective cover 11 will not move downward. The telescopic rod 16 can be easily fixed by the fixing bolt 15, and the protective cover 11 can be easily fixed at a suitable height for use.
[0039] For details, please refer to Figure 6 As shown, a thrust spring 29 is fixedly installed between the locking pins 24, and an operating handle 25 extending out of the housing 21 is fixedly installed on one side of the locking pins 24.
[0040] As can be seen from the above, the thrust spring 29 can easily apply elastic force to the locking post 24, which can easily push the locking post 24 into the slide groove 23 to support and lock the movable frame 14. By manually squeezing the operating handle 25, the locking post 24 can be easily retracted, so that the locking post 24 can be moved out of the slide groove 23, which can release the support of the movable frame 14, allowing the movable frame 14 to slide down the slide groove 23 for storage.
[0041] For details, please refer to Figure 5 As shown, the inside of the box 21 is provided with a first storage slot 26 for placing the grounding resistance tester 3, and the two sides of the first storage slot 26 are provided with retrieval slots 27.
[0042] As can be seen from the above, the grounding resistance tester 3 can be conveniently stored in the first storage compartment 26, and the grounding resistance tester 3 can be conveniently taken out from the first storage compartment 26 by reaching into the retrieval compartment 27.
[0043] Example 2:
[0044] refer to Figure 5 As shown, a second storage compartment 28 is provided inside the box 21 on one side of the first storage compartment 26, and a handle 22 is fixedly installed at the front end of the box 21.
[0045] As can be seen from the above, the second storage compartment 28 can conveniently store accessories such as wires used for testing, and the handle 22 can be used to easily lift the box 21 for carrying.
[0046] refer to Figure 3 As shown, the top of the protective cover 11 has a placement slot 12, which is located at the front end of the storage slot 17. The protective cover 11 is fixed to the box body 21 by a fixing knob 13.
[0047] As can be seen from the above, by placing the ground resistance tester 3 in the placement slot 12, the placement slot 12 can be used to limit the ground resistance tester 3, making it difficult for the ground resistance tester 3 to slip off the protective cover 11. When the protective cover 11 is attached to the box 21, it can be fixed by the fixing knob 13, preventing the protective cover 11 from separating from the box 21 during the carrying process.
[0048] refer to Figure 3 and Figure 4 As shown, a first magnetic block 110 corresponding to the rotating seat 18 is embedded in the bottom of the storage slot 17, and a second magnetic block 111 corresponding to the rotating seat 18 is embedded in the inner wall of the storage slot 17.
[0049] As can be seen from the above, when the winding rod 19 is flipped into the storage slot 17 and is in a horizontal state, the first magnetic block 110 can be used to attract the rotating seat 18, which can easily fix the winding rod 19 in the storage slot 17 and prevent the winding rod 19 from accidentally flipping out during carrying. When the winding rod 19 is flipped upward and is in a vertical state during use, the second magnetic block 111 can be used to attract the rotating seat 18, which can easily keep the winding rod 19 in a vertical state and prevent the winding rod 19 from tipping over when the wire is wrapped, which brings more convenience to use.
[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A power transmission line grounding wire status detector, characterized in that, include: Storage box mechanism (2) and cover plate mechanism (1) assembled on the top of the storage box mechanism (2); The storage box mechanism (2) includes a box body (21), inside which a grounding resistance tester (3) is placed, and sliding grooves (23) are provided on both sides of the box body (21); The cover plate mechanism (1) includes a movable frame (14) slidably installed in the slide groove (23). A telescopic rod (16) is sleeved on the top of the movable frame (14). A protective cover (11) is fixedly installed on the top of the telescopic rod (16). A storage groove (17) is opened on the top of the protective cover (11). A rotating seat (18) is rotatably installed inside the storage groove (17). A winding rod (19) is fixedly installed at one end of the rotating seat (18).
2. The power transmission line grounding wire status detector according to claim 1, characterized in that: Locking posts (24) extending into the sliding groove (23) are slidably installed on both sides of the box (21). The locking posts (24) are engaged with the bottom of the movable frame (14). The movable frame (14) and the telescopic rod (16) are fixed by fixing bolts (15).
3. The power transmission line grounding wire status detector according to claim 2, characterized in that: A thrust spring (29) is fixedly installed between the locking posts (24), and an operating handle (25) extending out of the housing (21) is fixedly installed on one side of the locking posts (24).
4. The power transmission line grounding wire status detector according to claim 1, characterized in that: The box (21) has a first storage slot (26) for placing the grounding resistance tester (3) inside, and retrieval slots (27) are provided on both sides of the first storage slot (26).
5. The power transmission line grounding wire status detector according to claim 4, characterized in that: The box (21) has a second storage compartment (28) located on one side of the first storage compartment (26) inside, and a handle (22) is fixedly installed at the front end of the box (21).
6. The power transmission line grounding wire status detector according to claim 1, characterized in that: The protective cover (11) has a placement slot (12) on its top. The placement slot (12) is located at the front end of the storage slot (17). The protective cover (11) is fixed to the box body (21) by a fixing knob (13).
7. The power transmission line grounding wire status detector according to claim 1, characterized in that: The bottom of the storage slot (17) is inlaid with a first magnetic block (110) corresponding to the rotating seat (18), and the inner wall of the storage slot (17) is inlaid with a second magnetic block (111) corresponding to the rotating seat (18).