Anti-theft adjustable three-phase current transformer

Abstract

The utility model discloses a kind of theft-preventing adjustable three-phase current transformers, it is related to current transformer technical field, its technical key points include theft-preventing three-phase current transformer body;Induction magnetic attraction warning mechanism, the induction magnetic attraction warning mechanism is installed and is connected in the lower end inboard of theft-preventing three-phase current transformer body;Opening and closing trigger mechanism, the opening and closing trigger mechanism is installed and is connected on the outside of induction magnetic attraction warning mechanism;Rotary positioning mechanism, the rotary positioning mechanism is fixedly connected on theft-preventing three-phase current transformer body, the rotary positioning mechanism is movably connected with opening and closing trigger mechanism, technical effect is that induction magnetic attraction warning mechanism can carry out sound and light prompt in the lower end inboard of theft-preventing three-phase current transformer body, when sound and light prompt, personnel can be effectively prompted, reach the warning effect of theft-preventing.

Description

Technical Field

[0001] This utility model relates to the field of current transformer technology, specifically to an adjustable three-phase current transformer for preventing electricity theft. Background Technology

[0002] A current transformer is a measuring device that converts high current into low current proportionally. It is mainly used for current monitoring and protection in power systems. Three-phase current transformers are also devices that are easily stolen from, and it is difficult to see the theft without careful observation. To avoid electricity theft, anti-theft adjustable three-phase current transformers are needed.

[0003] The existing Chinese patent CN218004533U, disclosed on December 9, 2022, is an adjustable three-phase current transformer for preventing electricity theft. It includes a three-phase current transformer body, which includes a first current transformer, a second current transformer, and a third current transformer. Each of the first, second, and third current transformers has a wire-passing slot on its front side. A wire clamping block is provided at the top and bottom of the wire-passing slot. An adjustment mechanism is fixedly installed on the front side of the first, second, and third current transformers and on one side of the wire-passing slot opening. The adjustment mechanism includes a mounting block, an inner groove, a screw, an adjustment connecting block, a first gear, a second gear, and a rotating shaft.

[0004] However, in actual use, the above-mentioned device only uses the adjustment mechanism to adapt the installation to the cable size in order to achieve the corresponding anti-theft function. However, it lacks a corresponding active warning mechanism and cannot effectively alert personnel to the problem.

[0005] Therefore, we propose a novel anti-theft adjustable three-phase current transformer to solve the above-mentioned technical problems. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an adjustable three-phase current transformer for preventing electricity theft. This solves the problem that in actual use, the aforementioned devices only utilize adjustment mechanisms to adapt the installation to the cable size, thus achieving the corresponding anti-theft effect, but lack a corresponding active warning mechanism, failing to effectively alert personnel.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: an adjustable three-phase current transformer for preventing electricity theft, comprising: Anti-theft three-phase current transformer body; A magnetic attraction warning mechanism is installed and connected to the lower inner side of the anti-theft three-phase current transformer body; An opening and closing triggering mechanism is installed and connected to the outside of the inductive magnetic warning mechanism; A rotary positioning mechanism is fixedly connected to the body of the anti-theft three-phase current transformer, and the rotary positioning mechanism is movably connected to the opening and closing triggering mechanism.

[0008] Preferably, the anti-theft three-phase current transformer body includes a mounting panel, a connecting end plate is fixedly connected to the upper middle of the mounting panel, three three-phase current transformer housings are fixedly connected to the upper end of the connecting end plate, a magnetic core is installed on the inner side of the three-phase current transformer housing, a coil is wound around the periphery of the magnetic core, and terminals are fixedly connected to both ends of the coil. An inductive magnetic attraction warning mechanism is installed on the inner side of the connecting end plate.

[0009] Preferably, the mounting panel has multiple adjustable mounting screw holes on both sides.

[0010] Preferably, the inductive magnetic alarm mechanism includes a concave end plate, an electromagnet is fixedly connected to the middle of the upper end of the concave end plate, a storage battery box is fixedly connected to the inner end of the concave end plate, a PLC is fixedly connected to the outer end of the storage battery box, an audible and visual alarm is mounted on the outer side of the PLC on the connecting end plate by screws, the PLC is electrically connected to the audible and visual alarm, the storage battery box and the electromagnet through connecting wires, and an opening and closing triggering mechanism is attracted and fixed to the outer side of the electromagnet.

[0011] Preferably, the opening and closing triggering mechanism includes a shielding panel, an adsorbent panel is fixedly connected to the inner side of the lower end of the shielding panel, the adsorbent panel is magnetically connected to an electromagnet, a touch switch is fixedly connected to the inner side of the shielding panel, the touch switch is electrically connected to a PLC through a connecting wire, a rotating end block is fixedly connected to the middle of the upper end of the shielding panel, and a rotation positioning mechanism is installed on the periphery of the rotating end block.

[0012] Preferably, the touch switch is closed and abuts against the outer wall of the connecting end plate via a shielding panel.

[0013] Preferably, the rotation positioning mechanism includes a concave fixing plate, a rotating sleeve cavity is formed on the inner side of the lower end of the concave fixing plate, a positioning shaft is fixedly connected to the inner side of the rotating sleeve cavity on the concave fixing plate, a rotating end block is sleeved on the periphery of the positioning shaft, and the concave fixing plate is fixedly connected to the connecting end plate.

[0014] (III) Beneficial Effects Compared with the prior art, this utility model provides an adjustable three-phase current transformer for preventing electricity theft, which has the following advantages: 1. The inductive magnetic attraction warning mechanism of this utility model can provide audible and visual prompts on the lower inner side of the anti-theft three-phase current transformer body. When the audible and visual prompts are made, they can effectively alert personnel and achieve the warning effect of preventing electricity theft.

[0015] 2. This utility model, by setting an inductive magnetic attraction warning mechanism, can effectively magnetically fix and provide audible and visual prompts. The concave end plate of the inductive magnetic attraction warning mechanism can be fixed to the inner side of the lower end of the connecting end plate, allowing for stable installation. When the electromagnet is energized, it becomes magnetized and has a magnetic attraction fixing force. The storage battery box can be powered by an internal battery. The PLC can automatically control its use according to the set data. When the PLC receives a circuit disconnection signal from the touch switch, it controls the audible and visual alarm to emit an audible and visual prompt. An opening and closing trigger mechanism is attracted and fixed to the outside of the electromagnet. When the electromagnet is magnetically attracted, it can fix the opening and closing trigger mechanism to close. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the inductive magnetic warning mechanism of this utility model; Figure 4 This is a schematic diagram of the opening and closing triggering mechanism of this utility model; Figure 5 This is a schematic diagram of the rotation positioning mechanism of this utility model.

[0017] In the picture: 1. Three-phase current transformer housing; 2. Shielding panel; 21. Concave fixing plate; 22. Rotating end block; 23. Attachable panel; 24. Touch switch; 25. Positioning shaft; 26. Rotating sleeve cavity; 3. Mounting panel; 4. Audible and visual alarm; 5. Connecting end plate; 6. Magnetic core; 61. Coil; 62. Wiring terminal; 7. PLC; 71. Storage battery box; 72. Concave end plate; 73. Electromagnet. Detailed Implementation

[0018] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0019] Example 1 This embodiment provides a technical solution: an adjustable three-phase current transformer for preventing electricity theft, such as... Figures 1-5 As shown, it includes a three-phase current transformer body for preventing electricity theft, an induction magnetic alarm mechanism, an opening and closing triggering mechanism, and a rotation positioning mechanism.

[0020] The inductive magnetic attraction warning mechanism is installed and connected to the lower inner side of the anti-theft three-phase current transformer body. The inductive magnetic attraction warning mechanism can provide audible and visual prompts on the lower inner side of the anti-theft three-phase current transformer body. When the audible and visual prompts are activated, they can effectively alert personnel and achieve the warning effect of preventing electricity theft. The opening and closing trigger mechanism is installed and connected to the outer side of the inductive magnetic attraction warning mechanism. The opening and closing trigger mechanism can be shielded and protected on the outer side of the inductive magnetic attraction warning mechanism. When the opening and closing trigger mechanism is opened, it releases the abutment circuit and can be triggered. The rotation positioning mechanism is fixed to the anti-theft three-phase current transformer body and can be placed and used stably. The rotation positioning mechanism is movably connected to the opening and closing trigger mechanism, and the opening and closing trigger mechanism can be positioned and rotated on the rotation positioning mechanism.

[0021] like Figures 1-4 As shown, the inductive magnetic alarm mechanism includes a concave end plate 72, which can be fixed to the lower inner side of the connecting end plate 5 for stable installation. An electromagnet 73 is fixed to the middle of the upper end of the concave end plate 72. When energized, the electromagnet 73 is magnetized and has a magnetic attraction force. A storage battery box 71 is fixed to the inner end of the concave end plate 72. The storage battery box 71 is powered by an internal battery. A PLC 7 is fixed to the outer end of the storage battery box 71. The PLC 7 can automatically control the operation according to the set data. An audible and visual alarm 4 is installed on the outer side of the PLC 7 on the connecting end plate 5 by screws. The PLC 7 can control the audible and visual alarm 4 to emit an audible and visual prompt. The PLC 7 is electrically connected to the audible and visual alarm 4, the storage battery box 71 and the electromagnet 73 through connecting wires, and can control the power supply status accordingly. An opening and closing trigger mechanism is attracted and fixed to the outer side of the electromagnet 73. When the electromagnet 73 is magnetically attracted, it can fix the opening and closing trigger mechanism to close.

[0022] The opening and closing triggering mechanism includes a shielding panel 2, which can shield the outer slot of the connecting end plate 5 to provide protection. A magnetically attachable panel 23 is fixedly attached to the inner side of the lower end of the shielding panel 2. The magnetically attachable panel 23 is magnetically connected to the electromagnet 73. The shielding panel 2 can be magnetically fixed to the outer side of the electromagnet 73 for protection. A touch switch 24 is fixedly attached to the inner side of the shielding panel 2. The shielding panel 2 can drive the touch switch 24 to close and touch. The touch switch 24 is electrically connected to the PLC 7 through a connecting wire. The circuit disconnection signal of the touch switch 24 can be effectively transmitted to the PLC 7. The PLC 7 can trigger the corresponding set program operation. A rotating end block 22 is fixedly attached to the middle of the upper end of the shielding panel 2. The shielding panel 2 can be positioned and rotated by the rotating end block 22. A rotation positioning mechanism is installed on the periphery of the rotating end block 22. The rotating end block 22 can be positioned and rotated to open and close on the rotation positioning mechanism. When the touch switch 24 is closed and abuts against the outer wall of the connecting end plate 5 through the shielding panel 2, the opening circuit of the touch switch 24 can be triggered and an electrical signal can be transmitted when it is released.

[0023] The wiring diagrams for PLC7, electromagnet 73, audible and visual alarm 4, accumulator box 71, and touch switch 24 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use, so the control method and wiring layout will not be explained in detail.

[0024] When in use, the inductive magnetic alarm mechanism can provide audible and visual alerts on the lower inner side of the anti-theft three-phase current transformer body. When the audible and visual alerts are activated, they can effectively alert personnel and achieve the warning effect of preventing electricity theft. The opening and closing trigger mechanism can be shielded and protected on the outside of the inductive magnetic alarm mechanism. When the opening and closing trigger mechanism is opened, the contact circuit is released and triggered. The rotation positioning mechanism is fixed to the anti-theft three-phase current transformer body and can be placed and used stably. The opening and closing trigger mechanism can be positioned and rotated on the rotation positioning mechanism.

[0025] Example 2 This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, to further better realize this utility model, the following configuration is specifically adopted: The anti-theft three-phase current transformer body includes a mounting panel 3, which can be installed in a designated position by screws. A connecting end plate 5 is fixedly connected to the middle of the upper end of the mounting panel 3. After installation, the mounting panel 3 can drive the connecting end plate 5 for support and placement. Three three-phase current transformer housings 1 are fixedly connected to the upper end of the connecting end plate 5. The connecting end plate 5 can support the placement of the three three-phase current transformer housings 1. A magnetic core 6 is installed on the inner side of the three-phase current transformer housing 1. A coil 61 is wound around the periphery of the magnetic core 6 to facilitate the normal functioning of the entire transformer. The two ends of the coil 61 are fixedly connected to the terminals 62 for easy connection to the external wiring. An inductive magnetic attraction warning mechanism is installed on the inner side of the connecting end plate 5, which can be installed and placed accordingly. The mounting panel 3 has multiple adjustable mounting screw holes on both sides, which can be adjusted to fix the screws in place as needed.

[0026] The rotation positioning mechanism includes a concave fixing plate 21, which is fixedly connected to the connecting end plate 5. The concave fixing plate 21 can be stably installed. A rotating sleeve cavity 26 is opened on the inner side of the lower end of the concave fixing plate 21, which can play a limiting and wrapping role. A positioning shaft 25 is fixedly connected to the inner side of the rotating sleeve cavity 26 on the concave fixing plate 21, which can be positioned and installed. A rotating end block 22 is sleeved on the periphery of the positioning shaft 25, and the rotating end block 22 can be positioned and rotated on the periphery of the positioning shaft 25.

[0027] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. An adjustable three-phase current transformer for preventing electricity theft, characterized in that, include: Anti-theft three-phase current transformer body; A magnetic attraction warning mechanism is installed and connected to the lower inner side of the anti-theft three-phase current transformer body; An opening and closing triggering mechanism is installed and connected to the outside of the inductive magnetic warning mechanism; A rotary positioning mechanism is fixedly connected to the body of the anti-theft three-phase current transformer, and the rotary positioning mechanism is movably connected to the opening and closing triggering mechanism.

2. The anti-theft adjustable three-phase current transformer according to claim 1, characterized in that: The anti-theft three-phase current transformer body includes a mounting panel (3), a connecting end plate (5) is fixedly connected to the upper middle of the mounting panel (3), three three-phase current transformer housings (1) are fixedly connected to the upper end of the connecting end plate (5), a magnetic core (6) is installed on the inner side of the three-phase current transformer housing (1), a coil (61) is wound around the periphery of the magnetic core (6), and terminals (62) are fixedly connected to both ends of the coil (61). An induction magnetic attraction warning mechanism is installed on the inner side of the connecting end plate (5).

3. The anti-theft adjustable three-phase current transformer according to claim 2, characterized in that: The mounting panel (3) has multiple adjustable mounting screw holes on both sides.

4. An anti-theft adjustable three-phase current transformer according to claim 1 or 2, characterized in that: The inductive magnetic alarm mechanism includes a concave end plate (72), an electromagnet (73) is fixedly connected to the middle of the upper end of the concave end plate (72), a storage battery box (71) is fixedly connected to the inner end of the concave end plate (72), a PLC (7) is fixedly connected to the outer end of the storage battery box (71), and an audible and visual alarm (4) is installed on the outer side of the PLC (7) on the connecting end plate (5) by screws. The PLC (7) is electrically connected to the audible and visual alarm (4), the storage battery box (71) and the electromagnet (73) through connecting wires. An opening and closing triggering mechanism is attracted and fixed on the outer side of the electromagnet (73).

5. The anti-theft adjustable three-phase current transformer according to claim 4, characterized in that: The opening and closing triggering mechanism includes a shielding panel (2), an adsorption panel (23) is fixedly attached to the inner side of the lower end of the shielding panel (2), the adsorption panel (23) is magnetically connected to an electromagnet (73), a touch switch (24) is fixedly attached to the inner side of the shielding panel (2), the touch switch (24) is electrically connected to a PLC (7) through a connecting wire, a rotating end block (22) is fixedly attached to the middle of the upper end of the shielding panel (2), and a rotating positioning mechanism is installed on the periphery of the rotating end block (22).

6. The anti-theft adjustable three-phase current transformer according to claim 5, characterized in that: The touch switch (24) is closed and abuts against the outer wall of the connecting end plate (5) through the shielding panel (2).

7. An anti-theft adjustable three-phase current transformer according to claim 1 or 5, characterized in that: The rotating positioning mechanism includes a concave fixing plate (21), a rotating sleeve cavity (26) is provided on the inner side of the lower end of the concave fixing plate (21), a positioning shaft (25) is fixedly connected to the inner side of the rotating sleeve cavity (26) on the concave fixing plate (21), a rotating end block (22) is sleeved on the periphery of the positioning shaft (25), and the concave fixing plate (21) is fixedly connected to the connecting end plate (5).

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