U-shaped hanging clamp for power line

Abstract

The utility model discloses a power line U type hanging clamp, relates to the power line hanging clamp technical field, and comprises a U type double chuck and a rod handle, the rod handle is fixedly installed at the tail end of the U type double chuck, the U type double chuck comprises an insulation type hook frame and a detection box, the insulation type hook frame comprises a front frame, a middle frame and a rear frame, the U-shaped hanging clamp is in contact with a power line to form a circuit loop, and an input and output alternating current mutual inductor is arranged in the circuit loop. A closed circuit is formed in the ground wire, alternating-current coupling signals with fixed frequency are injected through the input mutual inductor to enable current to be generated in the closed circuit loop, and when alternating-current signals with fixed frequency are detected by the output alternating-current mutual inductor in the circuit loop, whether the contact resistance of the ground wire is zero or not is intelligently measured, so that the hitching state of the ground wire is detected and monitored.

Description

Technical Field

[0001] This utility model relates to the field of power line clip technology, specifically a U-shaped power line clip. Background Art

[0002] The connection of power grounding wires is a crucial safety device for power outage maintenance of power lines, circuit breakers, transformers, etc., in the power grid. The reliability of grounding wire connection significantly impacts the personal safety of maintenance personnel. Therefore, real-time detection and monitoring of the grounding wire connection status are of paramount importance. The key factor affecting the reliability of grounding wire connection is whether the contact resistance at the connection point between the clamp and the power line is zero. Only when the contact resistance is zero can it be considered a secure connection of the grounding wire; otherwise, the grounding wire clamp may be loosely connected or have poor contact with the power line, potentially causing equipment burnout and the formation of ground voltage, resulting in personal injury or death. In practice, because the power line contact points are often exposed to the elements, metal surface corrosion can occur, leading to poor contact between the power line contact points and the clamps (generating contact resistance). Furthermore, the operating head of the double-tongue clamp hook is a single hook and a single clamp. When it is attached to the power line that needs to be grounded, the connection is judged only by manual observation or monitoring of the contact position. People cannot know whether the clamp and the power line are in reliable contact, and therefore cannot know whether the grounding wire is reliably grounded. This poses a safety hazard to the maintenance of power lines and equipment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a U-shaped power line clip, which solves the problem that existing power line contact points are often exposed to the elements, causing metal surface corrosion and resulting in poor contact between the power line contact points and the clip (generating contact resistance). Furthermore, the double-tongue clip hook operating head uses a single hook and a single clip, meaning that when it is hung on a power line requiring grounding, the contact is only determined by manual observation or monitoring of the contact position. This makes it impossible to determine whether the clip is reliably in contact with the power line, and consequently, whether the grounding wire is reliably grounded, posing a safety hazard to the maintenance of power lines and equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a U-shaped power line clamp, comprising a U-shaped double clamp and a handle, wherein the handle is fixedly installed at the end of the U-shaped double clamp, the U-shaped double clamp comprising an insulated hook frame and a detection box, the insulated hook frame comprising a front frame, a middle frame, and a rear frame, wherein a connecting plate is fixedly installed at the center of the gap between the front frame and the middle frame and at the center of the gap between the middle frame and the rear frame, the detection box is fixedly installed between the handle and the front frame, the middle frame, and the rear frame, the detection box being provided with an end cap, and clamping components are respectively provided in the gap between the front frame and the middle frame and in the gap between the middle frame and the rear frame.

[0005] Preferably, the clamping assembly includes a power line clamp plate, which is hinged to the gap between the front frame and the middle frame and the gap between the middle frame and the rear frame. The upper end of the power line clamp plate is exposed outside the insulated hook frame. A torsion spring is installed in the gap between the front frame and the middle frame and the gap between the middle frame and the rear frame, and located on one side of the power line clamp plate. The torsion spring is in contact with the power line clamp plate.

[0006] Preferably, a front hanging clip is fixedly installed on the outer wall of the front frame, and a rear hanging clip is fixedly installed on the outer wall of the rear frame. Copper strips are fixedly installed on the front and rear hanging clips respectively, and the copper strips are fixedly connected to the through end of the power line clamp.

[0007] Preferably, a copper bar is fixedly installed between the two side walls inside the detection box, and the two ends of the copper bar pass through the detection box and are connected to the front and rear clamps.

[0008] Preferably, the detection box is equipped with an AC signal generator circuit, an AC detection circuit, and an audio-visual display circuit. The coil of the AC signal generator circuit is mounted on a copper horizontal bar, and the coils of the AC detection circuit and the audio-visual display circuit are also mounted on the copper horizontal bar.

[0009] Preferably, the side wall of the detection box is provided with a ground wire terminal.

[0010] Beneficial effects

[0011] This invention provides a U-shaped power line clamp, solving the problems of existing power line contact points being constantly exposed, leading to metal surface corrosion and poor contact (resistance) between the power line contact points and the clamp; and the double-tongue clamp hook operating head being a single hook and single clamp, where contact is judged only by manual observation or monitoring of the contact position when it is hung on a power line requiring grounding, making it impossible to know whether the clamp and power line are reliably in contact, and consequently, whether the grounding wire is reliably grounded, thus posing a safety hazard for power line and equipment maintenance. This invention forms a circuit loop through the contact between the U-shaped clamp and the power line, and inserts input and output AC transformers into the circuit loop. By injecting a fixed-frequency AC coupling signal through the input transformer, current is generated in the closed circuit loop. When the output AC transformer in the circuit loop detects the fixed-frequency AC signal, it intelligently measures whether the grounding wire contact resistance is zero, thereby realizing the detection and monitoring of the grounding wire connection status. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a U-shaped power line clip according to the present invention.

[0013] Figure 2This is a cross-sectional view of the U-shaped power line clip of this utility model.

[0014] Figure 3 This is a bottom view of the U-shaped power line clip of this utility model.

[0015] Figure 4 This is an exploded structural diagram of the U-shaped power line clamp described in this utility model.

[0016] In the diagram: 1. Rod handle; 2. Detection box; 3. Front frame; 4. Middle frame; 5. Rear frame; 6. Connecting plate; 7. End cap; 8. Power line clamp; 9. Torsion spring; 10. Front hanging clip; 11. Rear hanging clip; 12. Copper strip; 13. Copper single bar; 14. AC signal generator circuit; 15. AC detection circuit and audio-visual display circuit; 16. Ground wire terminal. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a U-shaped power line clamp, including a U-shaped double clamp and a handle 1. The handle 1 is fixedly installed at the end of the U-shaped double clamp. The U-shaped double clamp includes an insulated hook frame and a detection box 2. The insulated hook frame includes a front frame 3, a middle frame 4, and a rear frame 5. A connecting plate 6 is fixedly installed at the center of the gap between the front frame 3 and the middle frame 4 and at the center of the gap between the middle frame 4 and the rear frame 5. The detection box 2 is fixedly installed between the handle 1 and the front frame 3, the middle frame 4, and the rear frame 5. The detection box 2 is provided with an end cap 7. Clamping components are respectively provided in the gap between the front frame 3 and the middle frame 4 and in the gap between the middle frame 4 and the rear frame 5.

[0019] The U-shaped double clamps are hung on the power cables, and the clamping components between the front frame 3, middle frame 4, and rear frame 5 clamp and fix the power cables.

[0020] In this embodiment, the clamping assembly includes a power line clamp plate 8, which is hinged to the gap between the front frame 3 and the middle frame 4 and the gap between the middle frame 4 and the rear frame 5. The upper end of the power line clamp plate 8 is exposed in the insulated hook frame. A torsion spring 9 is installed in the gap between the front frame 3 and the middle frame 4 and the gap between the middle frame 4 and the rear frame 5 and located on one side of the power line clamp plate 8. The torsion spring 9 is in contact with the power line clamp plate 8.

[0021] Under the action of the torsion spring 9, the power line clamp 8 clamps and fixes the power cable.

[0022] In this embodiment, a front hanging clip 10 is fixedly installed on the outer wall of the front frame 3, and a rear hanging clip 11 is fixedly installed on the outer wall of the rear frame 5. Copper strips 12 are fixedly installed on the front hanging clip 10 and the rear hanging clip 11, respectively, and the copper strips 12 are fixedly connected to the through end of the power line clamp plate 8.

[0023] In this embodiment, a copper bar 13 is fixedly installed between the two inner walls of the detection box 2. The two ends of the copper bar 13 pass through the detection box 2 and are connected to the front clip 10 and the rear clip 11.

[0024] In this embodiment, the detection box 2 is further configured to include an AC signal generator circuit 14, an AC detection circuit, and an audio-visual display circuit 15. The coil of the AC signal generator circuit 14 is mounted on a copper bar 13, and the coils of the AC detection circuit and the audio-visual display circuit 15 are also mounted on the copper bar 13.

[0025] AC signal generator circuit 14, AC detection circuit and audio-visual display circuit 15 are connected to an external storage battery, battery or rechargeable battery.

[0026] In this embodiment, the detection box 2 is further configured such that a ground wire terminal 16 is provided on the side wall.

[0027] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0028] Example: As shown in the attached drawings, during use, the insulated hook frame is hung on the power cable that needs to be grounded. The power cable is then simultaneously inserted into the clamps of the front and rear power cable clamps 8 to clamp it. This forms a closed loop, consisting of the front power cable clamp 8, the power cable, the rear power cable clamp 8, the rear hook 11, the copper bar 13, and the front hook 10. When there is a coupled AC signal in the closed loop, an alternating current will be generated. The AC signal generator circuit 14, the AC detection circuit, and the sound and light display circuit 15, which are wound on the copper bar 13, determine whether the power cable is reliably grounded based on the magnitude of the induced current. The AC detection circuit and the sound and light display circuit 15 can emit sound and light to provide a prompt.

[0029] When this invention is not connected to a power line, no circuit loop is formed, and the detected current is zero.

[0030] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A U-shaped power line clip, comprising a U-shaped double clamp and a handle (1), characterized in that, The handle (1) is fixedly installed at the end of the U-shaped double clamp. The U-shaped double clamp includes an insulated hook frame and a detection box (2). The insulated hook frame includes a front frame (3), a middle frame (4), and a rear frame (5). A connecting plate (6) is fixedly installed at the center of the gap between the front frame (3) and the middle frame (4) and at the center of the gap between the middle frame (4) and the rear frame (5). The detection box (2) is fixedly installed between the handle (1) and the front frame (3), the middle frame (4), and the rear frame (5). An end cap (7) is provided on the detection box (2). Clamping components are respectively provided in the gap between the front frame (3) and the middle frame (4) and in the gap between the middle frame (4) and the rear frame (5).

2. A U-shaped power line clip according to claim 1, characterized in that... The clamping assembly includes a power line clamp (8), which is hinged in the gap between the front frame (3) and the middle frame (4) and in the gap between the middle frame (4) and the rear frame (5). The upper end of the power line clamp (8) is exposed in the insulated hook frame. A torsion spring (9) is installed in the gap between the front frame (3) and the middle frame (4) and in the gap between the middle frame (4) and the rear frame (5) and is located on one side of the power line clamp (8). The torsion spring (9) is in contact with the power line clamp (8).

3. A U-shaped power line clip according to claim 2, characterized in that... A front hanging clip (10) is fixedly installed on the outer wall of the front frame (3), and a rear hanging clip (11) is fixedly installed on the outer wall of the rear frame (5). A copper strip (12) is fixedly installed on the front hanging clip (10) and the rear hanging clip (11), and the copper strip (12) is fixedly connected to the through end of the power line clamp (8).

4. A U-shaped power line clip according to claim 3, characterized in that... A copper bar (13) is fixedly installed between the two inner walls of the detection box (2). The two ends of the copper bar (13) pass through the detection box (2) and are connected to the front hanging clip (10) and the rear hanging clip (11).

5. A U-shaped power line clip according to claim 4, characterized in that... The detection box (2) is equipped with an AC signal generator circuit (14), an AC detection circuit and an audio-visual display circuit (15). The coil of the AC signal generator circuit (14) is mounted on a copper bar (13), and the coils of the AC detection circuit and the audio-visual display circuit (15) are mounted on the copper bar (13).

6. A U-shaped power line clamp according to claim 5, characterized in that... The detection box (2) has a ground wire terminal (16) on its side wall.

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