Electrical test short circuit device

Abstract

The utility model relates to the technical field of electrical test, and discloses an electrical test short circuit device, which comprises a first clamping jaw, a second clamping jaw, a winding drum and an Internet of Things terminal, and is characterized in that one side of the first clamping jaw facing the second clamping jaw is fixedly connected with an iron core, and a coil is wound outside the iron core; the side, facing the first clamping jaw, of the second clamping jaw and the position opposite to the iron core are fixedly connected with an armature, and the side, facing the iron core, of the first clamping jaw is provided with a power source. Through the Internet of Things terminal, the power supply works, supplies power to the coil, generates electromagnetic attraction force, attracts the armature, deforms the torsion spring, opens and closes the first clamping jaw and the second clamping jaw, so that the first clamping jaw and the second clamping jaw automatically fall off from the electrical equipment, and the phenomenon that the electrical equipment is damaged due to the fact that the inspection by personnel is not in place can be avoided. And when the short-circuit wire is left on the equipment, the clamp of the test short-circuit device automatically falls off from the equipment when the cabinet door of the electrical switch cabinet is closed, so that the problem of short-circuit blasting during power transmission of the equipment is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing technology, specifically to an electrical testing short-circuit device. Background Technology

[0002] Electrical testing of power equipment is of great significance for timely detection of power equipment faults, elimination of equipment defects, and ensuring stable operation of the power grid. During electrical testing, it is usually necessary to short-circuit the equipment with a jumper wire, and then remove the jumper wire after the test is completed.

[0003] Currently, after the test, the shorting wires are mainly collected manually. Due to the large number of shorting wires, staff need to repeatedly check whether the shorting wires have been completely removed. If the check is not thorough, the shorting wires can easily be left on the equipment, causing major safety accidents such as short circuits and explosions when the equipment is powered on. Therefore, an electrical test shorting device is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides an electrical test short-circuit device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an electrical test short-circuit device, comprising a first gripper, a second gripper, a winding drum, and an Internet of Things (IoT) terminal. An iron core is fixedly connected to the side of the first gripper facing the second gripper, and a coil is wound around the outside of the iron core. An armature is fixedly connected to the side of the second gripper facing the first gripper and opposite to the iron core. A power supply is provided on the side of the first gripper facing the iron core, and the power supply is electrically connected to the coil.

[0006] Furthermore, a connecting wire is provided on one side of both the first and second grippers. A winding drum is movably sleeved on the outer surface of the connecting wire. A winding rod is rotatably passed through the outer surface of the winding drum. A knob is fixedly connected to the winding rod on the outside of the winding drum. A rotating rod is fixedly connected to the side of the winding rod inside the winding drum. Two limiting posts are fixedly connected to the outer surface of the rotating rod. The connecting wire passes between the two limiting posts.

[0007] Furthermore, the outer surface of the knob is threaded through a limiting screw, and a stop block is rotatably connected to the side of the limiting screw near the winding drum. The stop block is in active contact with the outside of the winding drum.

[0008] Furthermore, the outer surfaces of the first and second grippers are each provided with a side seat, and a connecting shaft rotatably passes between the side seats. A torsion spring is sleeved on the outer surface of the connecting shaft, and the two ends of the torsion spring are fixedly connected to the outer surfaces of the first and second grippers, respectively.

[0009] Furthermore, the IoT terminal adopts, but is not limited to, NB-IoT.

[0010] Furthermore, it also includes a position switch installed on the door of the external high-voltage switchgear. The position switch is used to detect the position of the high-voltage switchgear door and has a built-in communication module for wirelessly transmitting information to an Internet of Things (IoT) terminal.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This electrical test short-circuit device, powered by an IoT terminal, supplies power to the coil, generating electromagnetic attraction that draws the armature in, causing the torsion spring to deform. This causes the first and second grippers to open and close, automatically detaching them from the electrical equipment. This prevents situations where short-circuit wires are left on the equipment due to inadequate personnel inspection. When the electrical switch cabinet door is closed, the clamps of the test short-circuit device automatically detach from the equipment, effectively preventing short circuits and explosions when the equipment is powered on.

[0013] 2. This electrical test short-circuit device rotates the knob to drive the rotating rod and the limiting post to rotate, thereby winding up both ends of the connecting wire. The limiting screw and the abutment block limit the knob, thus controlling the length of the connecting wire as needed and avoiding the connection wires becoming too numerous and too long, resulting in a messy connection wire. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the first and second grippers and their related structures of the present invention;

[0016] Figure 3 This is a schematic diagram of the internal structure of the winding drum of this utility model;

[0017] Figure 4 This is a schematic diagram of the winding drum structure of this utility model.

[0018] In the diagram: 1. First gripper; 2. Second gripper; 3. Side seat; 4. Connecting shaft; 5. Torsion spring; 6. Armature; 7. Iron core; 8. Coil; 9. Power supply; 10. Connecting wire; 11. Rewinding drum; 12. Rotating rod; 13. Limiting post; 14. Knob; 15. Limiting screw. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please refer to the following: Figures 1-4 This utility model provides a technical solution: an electrical test short-circuit device, including a first gripper 1, a second gripper 2, a winding drum 11, and an Internet of Things (IoT) terminal. An iron core 7 is fixedly connected to the side of the first gripper 1 facing the second gripper 2, and a coil 8 is wound around the outside of the iron core 7. An armature 6 is fixedly connected to the side of the second gripper 2 facing the first gripper 1 and opposite to the iron core 7. A power supply 9 is provided on the side of the first gripper 1 facing the iron core 7, and the power supply 9 is electrically connected to the coil 8. Specifically, the IoT terminal is electrically connected to the power supply 9, and the IoT terminal enables... When power supply 9 is turned on, it supplies power to coil 8, generating electromagnetic attraction that draws armature 6 in. During this process, the first clamp 1 and the second clamp 2 move, causing one end of the first clamp 1 and the second clamp 2 to open. The first clamp 1 and the second clamp 2 of the test short-circuit device automatically detach from the equipment, thus preventing situations where short-circuit wires are left on the equipment due to inadequate personnel inspection. When the electrical switch cabinet door is closed, the clamps of the test short-circuit device automatically detach from the equipment, effectively preventing short circuits and explosions when the equipment is powered on.

[0022] In this embodiment, a connecting wire 10 is provided on one side of both the first gripper 1 and the second gripper 2. A take-up drum 11 is movably sleeved on the outer surface of the connecting wire 10. A take-up rod is rotatably passed through the outer surface of the take-up drum 11. A knob 14 is fixedly connected to the take-up rod on the outside of the take-up drum 11. A rotating rod 12 is fixedly connected to the side of the take-up rod inside the take-up drum 11. Two limiting posts 13 are fixedly connected to the outer surface of the rotating rod 12. The connecting wire 10 passes between the two limiting posts 13. Specifically, rotating the knob 14 causes the take-up rod to rotate, which in turn causes the rotating rod 12 to rotate. The rotation of the rotating rod 12 causes the limiting posts 13 to rotate and take up both ends of the connecting wire 10. Rotating the knob 14 in the opposite direction will eject the connecting wire 10.

[0023] In this embodiment, the outer surface of the knob 14 is threaded through the limiting screw 15. The limiting screw 15 is rotatably connected to an abutment block on the side near the take-up drum 11. The abutment block is in contact with the outside of the take-up drum 11. Specifically, tightening the limiting screw 15 causes the other end of the abutment block to abut against the surface of the take-up drum 11, thereby limiting the knob 14.

[0024] In this embodiment, side seats 3 are provided on the outer surfaces of the first gripper 1 and the second gripper 2 respectively. A connecting shaft 4 is rotatably passed between the side seats 3. A torsion spring 5 is sleeved on the outer surface of the connecting shaft 4. The two ends of the torsion spring 5 are fixedly connected to the outer surfaces of the first gripper 1 and the second gripper 2 respectively. Specifically, when the first gripper 1 and the second gripper 2 open and close, the side seats 3 rotate around the connecting shaft 4, causing the torsion spring 5 to deform. When the coil 8 stops generating attraction, the torsion spring 5 drives the first gripper 1 and the second gripper 2 to automatically reset.

[0025] In this embodiment, the IoT terminal adopts, but is not limited to, NB-IoT. Specifically, in addition to NB-IoT, the IoT terminal may also adopt one of LoRa or 4G / 5G networks.

[0026] In this embodiment, a position switch installed on the door of the external high-voltage switchgear is also included. The position switch is used to detect the position of the high-voltage switchgear door. The position switch has a built-in communication module for wirelessly transmitting information to an Internet of Things (IoT) terminal. Specifically, after the electrical test is completed and before the electrical equipment is powered on, the high-voltage switchgear door is in a closed state. At this time, the position switch wirelessly transmits the closed position information of the switchgear door to the IoT terminal. The IoT terminal issues a control command to make the power supply module 9 work, supplying power to the coil 8 and generating electromagnetic attraction. It is worth noting that the test personnel can also operate the device via the IoT terminal on the APP to remotely control the opening and closing of the first gripper 1 and the second gripper 2.

[0027] Working Principle: In use, this utility model clamps multiple first jaws 1 and second jaws 2 onto electrical equipment for electrical testing. After the electrical test is completed, the high-voltage switchgear door is closed before powering on the equipment. At this time, the position switch wirelessly transmits the door's closed position information to the IoT terminal. The IoT terminal issues a control command, causing the power supply module 9 to operate, supplying power to the coil 8 and generating electromagnetic attraction, which attracts the armature 6. During this process, the first jaws 1 and second jaws 2 move, causing one end of each jaw to open. The first jaws 1 and second jaws 2 of the test short-circuit device automatically detach from the equipment, thus preventing situations where short-circuit wires are left on the equipment due to inadequate personnel inspection. When the switchgear door is closed, the clamps of the test short-circuit device automatically detach from the equipment, effectively preventing short circuits and explosions when the equipment is powered on.

[0028] During the test, according to the required length of the connecting wire 10, turn the knob 14. The knob 14 drives the take-up rod to rotate the rotating rod 12. The rotation of the rotating rod 12 drives the limit post 13 to rotate and take up both ends of the connecting wire 10. Turning the knob 14 in the opposite direction will release the connecting wire 10. After adjustment, tighten the limit screw 15 so that the other end of the abutment block abuts against the surface of the take-up drum 11 and limits the knob 14. This allows the length of the connecting wire 10 to be controlled as needed, avoiding the connecting wires 10 from being too numerous or too long and becoming messy.

[0029] The IoT terminal has an existing structure, and the control circuit can be implemented by simple programming by those skilled in the art. It is common knowledge in the field. We will only use it and not modify it. Therefore, the control method and circuit connection should not be described in detail.

[0030] 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. An electrical test short-circuit device, comprising a first gripper (1), a second gripper (2), a winding drum (11), and an Internet of Things (IoT) terminal, characterized in that: An iron core (7) is fixedly connected to the side of the first gripper (1) facing the second gripper (2). A coil (8) is wound around the outside of the iron core (7). An armature (6) is fixedly connected to the side of the second gripper (2) facing the first gripper (1) and opposite to the iron core (7). A power supply (9) is provided on the side of the first gripper (1) facing the iron core (7). The power supply (9) is electrically connected to the coil (8).

2. The electrical test short-circuit device according to claim 1, characterized in that: A connecting wire (10) is provided on one side of the first gripper (1) and the second gripper (2). A take-up drum (11) is movably sleeved on the outer surface of the connecting wire (10). A take-up rod is rotatably passed through the outer surface of the take-up drum (11). A knob (14) is fixedly connected to the outside of the take-up drum (11). A rotating rod (12) is fixedly connected to one side of the take-up rod inside the take-up drum (11). Two limiting posts (13) are fixedly connected to the outer surface of the rotating rod (12). The connecting wire (10) passes between the two limiting posts (13).

3. The electrical test short-circuit device according to claim 2, characterized in that: The outer surface of the knob (14) is threaded through a limiting screw (15), and the limiting screw (15) is rotatably connected to an abutment block on the side near the winding drum (11), and the abutment block is in contact with the outside of the winding drum (11).

4. The electrical test short-circuit device according to claim 1, characterized in that: The outer surfaces of the first gripper (1) and the second gripper (2) are provided with side seats (3), and a connecting shaft (4) is rotatably passed between the side seats (3). A torsion spring (5) is sleeved on the outer surface of the connecting shaft (4), and the two ends of the torsion spring (5) are fixedly connected to the outer surfaces of the first gripper (1) and the second gripper (2), respectively.

5. An electrical test short-circuit device according to claim 1, characterized in that: The IoT terminal uses, but is not limited to, NB-IoT.

6. The electrical test short-circuit device according to claim 1, characterized in that: It also includes a position switch installed on the door of the external high-voltage switchgear. The position switch is used to detect the position of the high-voltage switchgear door and has a built-in communication module for wirelessly transmitting information to an Internet of Things (IoT) terminal.

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