Grounding device with early warning function
By installing a proximity alarm on the clamp of the grounding device, real-time monitoring and early warning of the grounding wire and live components can be achieved, solving the problem of misoperation when hanging grounding wires on live parts during power system line construction, and improving construction safety and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-04-03
AI Technical Summary
In the construction of existing power system lines, the five-prevention system cannot effectively prevent the safe removal of temporary grounding wires, resulting in frequent accidents caused by misoperation of grounding wires being attached to live lines, and there is a lack of effective early warning mechanisms.
A proximity alarm is installed on the clamp of the grounding device. Through sliding adjustment and flip-to-store design, it can monitor the dangerous distance between the grounding wire and live parts in real time and issue a warning signal when danger is detected to avoid misoperation.
It effectively warns of misoperation when connecting grounding wires to live circuits, improves construction safety, reduces the probability of accidents, and protects the alarm from damage through its storage design, extending its service life.
Smart Images

Figure CN121790796A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of power system line construction technology, and in particular to a grounding device with early warning function. Background Technology
[0002] During power system line construction and maintenance, grounding wires are required to ensure reliable grounding and the safety of power distribution equipment and construction personnel. The safe removal of grounding wires after construction is crucial for the safe operation of the power system. However, the existing "five-prevention" system cannot address the safe removal of temporary grounding wires, creating security loopholes that prevent timely detection and prevention of switching on with the grounding wire connected. During the transition from operating to maintenance status, after energizing the equipment and connecting the grounding wire, unforeseen factors such as sudden power restoration or incorrect switching intervals may occur, leading to accidental grounding accidents while the equipment is energized.
[0003] Therefore, there is an urgent need for a grounding device with early warning function that can realize in-situ monitoring of power grounding wires, strengthen safety protection, and avoid accidents caused by misoperation of grounding wires being hung on live wires, so as to ensure the safety of construction. Summary of the Invention
[0004] The purpose of this invention is to provide a grounding device with an early warning function, which can monitor the dangerous distance between the grounding wire and live parts in real time, thereby providing early warning, reducing the probability of accidents, and ensuring the safety of construction.
[0005] The present invention adopts the following technical solution: A grounding device with an early warning function includes an insulating rod, a wire clamp is provided on the top of the insulating rod, and a proximity alarm is provided on the wire clamp. In the initial state, the proximity alarm is located outside the wire clamp; wherein the proximity alarm can slide and adjust along the wall of the wire clamp, and when it moves to the end of the wire clamp opening, it flips over and is stored in the space inside the wire clamp.
[0006] Preferably, the wire clamp has a movable groove on its side wall, the movable groove including a horizontal section on the upper part of the wire clamp and a vertical section in the middle part of the wire clamp, the horizontal section and the vertical section being connected by an arc transition; a bracket is slidably disposed in the movable groove, and the proximity alarm is disposed on the bracket; wherein the bracket can be adjusted by rotating around the sliding point between itself and the movable groove.
[0007] Preferably, the bracket is movably provided with rollers, the rollers are located in the movable groove, and the bracket can be adjusted by rotating the rollers.
[0008] Preferably, the wire clamp includes an upper support body and a lower support body, and the upper support body and the lower support body are slidably connected; a positioning element that cooperates with each other is provided between the bracket and the wire clamp.
[0009] Preferably, the positioning element includes a positioning plate disposed on the bracket, a sliding groove disposed on the lower support body, a downwardly extending slider disposed at the end of the upper support body away from the wire clamp opening, a positioning hole disposed on the side wall of the sliding groove, a positioning groove disposed on the slider, and the positioning plate extending into the positioning groove through the positioning hole; wherein, the bracket can be stretched and adjusted along its length.
[0010] Preferably, the bracket includes a fixed section connected to the roller, a movable section elastically connected to the fixed section, and the proximity alarm and the positioning plate are respectively disposed on both sides of the movable section.
[0011] Preferably, the fixed section has a guide hole, and the movable section has a guide rod. The guide rod extends movably into the guide hole and is connected to a spring disposed in the guide hole.
[0012] Preferably, the movable slots are symmetrically arranged on both sides of the wire clamp, and the bracket has a U-shaped structure.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention sets a proximity alarm on the line clamp. When the line clamp is close to the suspension position, if there is current, the proximity alarm will sound an alarm, reminding the operator to confirm the correctness of the operation, effectively eliminating safety hazards, protecting power personnel, eliminating the phenomenon of misoperation, and ensuring the safe and stable operation of the power system and protecting personnel safety.
[0014] Furthermore, the proximity alarm of the present invention can be slidably adjusted along the wall of the clamp, allowing it to be placed in different positions as needed. This ensures the working effect while avoiding obstruction of the clamp's attachment. After use, it can also be stored in the clamp's space, reducing the occupation of external space and preventing the proximity alarm from being exposed on the outside of the clamp and thus avoiding collision damage. Attached Figure Description
[0015] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the wire clamp of the present invention; Figure 3 This is a schematic diagram of the structure of the support body on the wire clamp of the present invention; Figure 4 This is a schematic diagram of the structure of the bracket of the present invention. Detailed Implementation
[0016] The present invention will now be described clearly and completely with reference to the accompanying drawings and embodiments: like Figures 1 to 4 As shown, the grounding device with early warning function according to the present invention includes an insulating rod 1, a wire clamp 2 at the top of the insulating rod 1, the wire clamp 2 being a flat-mouth grounding wire clamp 2, and a proximity alarm 3 mounted on the wire clamp 2. The proximity alarm 3 adopts a commonly used model in the prior art, and its working principle is well known to those skilled in the art, so its specific principle will not be described further. In the initial state, the proximity alarm 3 is located outside the wire clamp 2, ensuring normal early warning function without obstructing the hanging of the wire clamp 2; the proximity alarm 3 can slide and adjust along the wall of the wire clamp 2, facilitating flexible adjustment of its position and improving the convenience of hanging the wire clamp 2. When the proximity alarm 3 is moved to the end of the wire clamp 2 opening, it can be flipped and stored inside the wire clamp 2, reducing the occupation of external space and avoiding the phenomenon of the proximity alarm 3 being exposed to the outside of the wire clamp 2 and being damaged by collision during storage or transportation.
[0017] Specifically, a movable groove 4 is provided on the side wall of the clamp 2. The movable groove 4 is symmetrically arranged on both sides of the clamp 2. The movable groove 4 includes a horizontal section 4-1 located at the upper part of the clamp 2 and a vertical section 4-2 located in the middle of the clamp 2. The horizontal section 4-1 and the vertical section 4-2 are connected by an arc transition, which facilitates the horizontal and vertical adjustment of the proximity alarm 3 in the clamp 2. A bracket 5 is slidably arranged in the movable groove 4. The bracket 5 has a U-shaped structure, and the proximity alarm 3 is fixedly arranged on the bracket 5. The bracket 5 can be rotated and adjusted with the sliding point between it and the movable groove 4 as the axis so that the proximity alarm 3 can be stored after the work is completed. Preferably, a roller 6 is movably arranged in the bracket 5. The roller 6 is located in the movable groove 4, and the bracket 5 can be adjusted by rotating the roller 6 to complete the storage of the proximity alarm 3.
[0018] Furthermore, such as Figure 2 and Figure 3 As shown, in this invention, the wire clamp 2 includes an upper support body 2-1 and a lower support body 2-2. The upper support body 2-1 and the lower support body 2-2 are slidably connected to adjust the height of the wire clamp 2, thereby increasing the clamping range of the wire clamp 2 and enhancing the practicality of the invention. The bracket 5 and the wire clamp 2 are provided with mutually cooperating positioning components, which can position the adjusted wire clamp 2 and ensure the stability of the adjusted wire clamp 2.
[0019] Specifically, the positioning component includes a positioning plate 7 mounted on the bracket 5. A vertical groove is provided on the upper support body 2-2, and a downwardly extending slider 8 is provided on the upper support body 2-1 at the end away from the opening of the wire clamp 2. A positioning hole 9 is provided on the side wall of the groove, and a positioning groove 10 is provided on the slider 8. The positioning plate 7 extends into the positioning groove 10 through the positioning hole 9. By switching the positioning plate 7 in different positioning grooves 10, the positioning of the adjusted wire clamp 2 can be completed, ensuring the stability of the wire clamp 2 during operation. At the same time, the connection between the positioning plate 7 and the positioning hole 9 and the positioning groove 10 can also be used to position the bracket 5, ensuring that the bracket 5 is arranged vertically to the slider 8, providing stable support for the proximity alarm 3, and preventing the proximity alarm 3 from driving the bracket 5 to rotate along the roller 6 during operation. The bracket 5 can be stretched and adjusted along its length to control the positioning plate 7 to disengage from the positioning groove 10, completing the up-and-down sliding adjustment of the upper support body 2-1 on the lower support body 2-2. Simultaneously, after use, the positioning plate 7 can be pulled out from the positioning hole 9 to move and adjust the position of the bracket 5, so as to fold and store the proximity alarm 3. At this time, the proximity alarm 3 is usually fixed at the positioning hole 9 in the working state, so as to achieve the purpose of positioning the adjusted wire clamp 2 while providing early warning. Preferably, the present invention can also provide a limiting groove matching the positioning plate 7 on the inner top wall of the upper support 2-1, so that when the proximity alarm 3 is stored inside the upper support 2-1, the positioning plate 7 is inserted into the limiting groove to complete the positioning of the bracket 5. At this time, the bracket 5 and the slider 8 are in a parallel state.
[0020] The bracket 5 includes a fixed section 5-1 connected to the roller 6, and a movable section 5-2 elastically connected to the fixed section 5-1. The proximity alarm 3 is located on the outside of the movable section 5-2, and the positioning plate 7 is located on the inside of the movable section 5-2. A guide hole is provided at the end of the fixed section 5-1 that contacts the movable section 5-2. A guide rod 11 is provided on the movable section 5-2. The guide rod 11 extends into the guide hole and is fixedly connected to a spring 12 located in the guide hole. In the initial state, the movable section 5-2 is in close contact with the fixed section 5-1. When it is necessary to adjust the position of the upper support 2-1 or to store the proximity alarm 3 after use, the movable section 5-2 is pulled, causing the guide rod 11 to move outward along the guide hole. At this time, the spring 12 is stretched, and the positioning plate 7 is moved out of the positioning groove 10 or positioning hole 9. Thus, the restriction of the upper support 2-1 and the bracket 5 is released, and the height of the wire clamp 2 or the position of the bracket 5 can be adjusted.
[0021] This invention, by installing a proximity alarm 3 on the clamp 2 of the grounding device, can detect the presence of live conductors in real time. When unexpected situations occur during grounding, such as sudden power surges or incorrect positioning, the proximity alarm 3 can promptly issue a warning signal, directly reminding the workers to stop operation. This prevents accidents caused by improper grounding while the device is live, effectively addressing the safety pain point of the lack of a targeted warning mechanism in existing technologies and significantly improving personnel safety during line construction and maintenance. Furthermore, the proximity alarm 3 in this invention features a sliding, adjustable, and retractable design. Initially located outside the clamp 2, it ensures the coverage and sensitivity of the warning detection. After the grounding device is installed, the proximity alarm 3 can be flipped and stored inside the clamp 2, preventing damage from collisions and wear during subsequent operations, extending the device's lifespan, and ensuring the compactness of the overall grounding device structure without affecting the stable connection of the grounding wire. This design is highly practical.
Claims
1. A grounding device with an early warning function, comprising an insulating rod, wherein a wire clamp is provided at the top of the insulating rod, characterized in that: The wire clamp is equipped with a proximity alarm. In the initial state, the proximity alarm is located outside the wire clamp. The proximity alarm can slide and adjust along the wall of the wire clamp, and when it moves to the end of the wire clamp opening, it flips over and is stored in the space inside the wire clamp.
2. The grounding device with early warning function according to claim 1, characterized in that: The wire clamp has a movable groove on its side wall. The movable groove includes a horizontal section on the upper part of the wire clamp and a vertical section in the middle part of the wire clamp. The horizontal section and the vertical section are connected by an arc transition. A bracket is slidably disposed in the movable groove, and the proximity alarm is disposed on the bracket. The bracket can be adjusted by rotating around the sliding point between itself and the movable groove.
3. The grounding device with early warning function according to claim 2, characterized in that: The bracket is movably equipped with rollers, which are located within the movable groove, and the bracket can be adjusted by rotating the rollers.
4. The grounding device with early warning function according to claim 3, characterized in that: The wire clamp includes an upper support body and a lower support body, which are slidably connected; a positioning element is provided between the bracket and the wire clamp to cooperate with each other.
5. The grounding device with early warning function according to claim 4, characterized in that: The positioning component includes a positioning plate disposed on the bracket, a sliding groove disposed on the lower support body, a downwardly extending slider disposed at the end of the upper support body away from the opening of the wire clamp, a positioning hole disposed on the side wall of the sliding groove, a positioning groove disposed on the slider, and the positioning plate extending into the positioning groove through the positioning hole; wherein, the bracket can be stretched and adjusted along its length.
6. The grounding device with early warning function according to claim 5, characterized in that: The bracket includes a fixed section connected to the roller, and a movable section is elastically connected to the fixed section. The proximity alarm and the positioning plate are respectively disposed on both sides of the movable section.
7. The grounding device with early warning function according to claim 6, characterized in that: The fixed section has a guide hole, and the movable section has a guide rod. The guide rod extends into the guide hole and connects with a spring located in the guide hole.
8. The grounding device with early warning function according to claim 2, characterized in that: The movable slots are symmetrically arranged on both sides of the wire clamp, and the bracket has a U-shaped structure.