Electricity approaching early warning device

Abstract

The invention discloses a near-electricity early-warning device, and the device comprises a transmitter which is used for transmitting an early-warning signal; the sensor is arranged on the transmitter and comprises a trigger circuit, an output circuit, an induction coil, a current oscillator and an induction connecting line, and the induction coil is electrically connected with the current oscillator and used for detecting the electric field intensity through electromagnetic induction; the contact end is connected to the current oscillator through the induction connecting line and is used for being in contact with a live line or equipment and transmitting induction current to the current oscillator; and the transmission connecting line is used for transmitting the early warning signal from the sensor to the transmitter. Through the electromagnetic induction principle, the motor driving mechanism and the ingenious installation design, accurate, timely and reliable detection of electricity approaching early warning is achieved, and safety guarantee is provided for workers.

Description

Technical Field

[0001] The invention relates to the technical field of electric power construction safety, and in particular to a near-electricity early warning device. Background Art

[0002] In the working environment of power construction in substations, operating personnel or mechanical equipment are vulnerable to threats from various high-voltage live equipment and high-voltage transmission lines. Therefore, in order to protect the personal safety of construction personnel, construction personnel or large mechanical equipment need to be equipped with special near-electric warning devices to remind construction personnel to take precautions against electric shock in the event of strong electric intrusion.

[0003] The existing near-electric warning device usually relies on the warning device to issue light and sound warnings during use. However, in the field operation environment, the warning effect is not good and the operating range of the staff is greatly limited. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a near-electric warning device to expand the operating range and improve the warning effect.

[0005] In order to solve the above technical problems, the present invention provides a near electric warning device, comprising:

[0006] A transmitter, used for sending out a warning signal;

[0007] A sensor is arranged on the emitter, the sensor comprising a trigger circuit, an output circuit, an induction coil, a current oscillator and an induction connecting line, the induction coil is electrically connected to the current oscillator, and is used to detect the electric field strength through electromagnetic induction;

[0008] A contact terminal, connected to the current oscillator through the induction connection line, used for contacting with a live line or device to transfer an induction current to the current oscillator;

[0009] A transmission connection line is used to transmit the warning signal from the sensor to the emitter.

[0010] Preferably, the lower surface of the sensor is fixedly connected to one end of the transmission connection line away from the transmitter; the output circuit is located below the trigger circuit and electrically connected to the trigger circuit, the current oscillator is located between the trigger circuit and the output circuit, and the induction coil is arranged in a surrounding manner with the current oscillator; the output end of the current oscillator is fixedly connected to the induction connection line.

[0011] Preferably, both side surfaces of the sensor are fixedly connected with connecting short rods, one end of the connecting short rod away from the sensor is fixedly connected with a limit clamp ring, and the limit clamp ring is engaged and connected with the sensing connecting line.

[0012] Preferably, a placement plate is fixedly connected to the front surface of the emitter, the placement plate is located below the sensor, and a connecting card slot is provided on the upper surface of the placement plate, and the connecting card slot is connected through the transmission connection line.

[0013] Preferably, a T-shaped embedding groove is also provided on the upper surface of the placement plate, and the T-shaped embedding groove is located behind the connecting card slot, and the inside of the T-shaped embedding groove is embedded with a T-shaped embedding strip; the upper surface of the T-shaped embedding strip is fixedly connected with a partition frame, and the partition frame is attached to the rear surface of the sensor, and a colloid net is provided inside the partition frame.

[0014] Preferably, a circular groove is provided on the front surface of the placement plate, a first spring is fixedly connected to the inside of the circular groove, and a connecting sleeve rod is fixedly connected to one end of the first spring away from the circular groove.

[0015] Preferably, one end of the connecting sleeve rod away from the first spring is fixedly connected to a limit baffle, the limit baffle is located on the front surface of the placement plate, the rear surface of the limit baffle is in contact with the front surface of the sensor, and a square groove is provided on the surface of the limit baffle, the square groove is located above the placement plate, and connecting rods are evenly distributed inside the square groove.

[0016] Preferably, an adjustment seat is provided on the rear surface of the emitter, a connecting groove is provided on the front surface of the adjustment seat, a movable rod is rotatably connected inside the adjustment seat, the movable rod is connected through the connecting groove, and one end of the movable rod close to the connecting groove is fixedly connected to the rear surface of the emitter.

[0017] Preferably, a fixing ring is fixedly connected to the side surface of the movable rod, a connecting long strip is fixedly connected to the side surface of the fixing ring, and a limiting hole is provided on the surface of the connecting long strip.

[0018] Preferably, a motor is fixedly connected to the inside of the adjustment seat, and the motor is located on both sides of the movable rod, and the output end of the motor is fixedly connected to a rotating long rod, and the side surface of the rotating long rod is fixedly connected to a connecting short strip plate, and the lower surface of the connecting short strip plate is fixedly connected to a connecting long rod, and the connecting long rod is connected through the limiting hole, and the end of the connecting long rod away from the connecting short strip plate is movably connected to the movable plate through a bearing, and the upper surface of the movable plate is fixedly connected to a second spring, and the second spring is located on both sides of the connecting long rod, and the end of the second spring away from the movable plate is fixedly connected to the lower surface of the connecting long strip plate.

[0019] The implementation of the present invention has the following beneficial effects: First, the present invention adopts the principle of electromagnetic induction, and transmits the induced current to the current oscillator by the contact terminal and the live line or equipment through the induction connection line, so that the induction coil generates an alternating magnetic field. The alternating magnetic field will generate an induced current and affect the change of the original magnetic flux, resulting in a change in the oscillation state. By monitoring this change, it is determined whether it is necessary to output a warning signal. This mechanism ensures the accuracy and timeliness of the near-electricity warning, can effectively prevent safety accidents caused by approaching a live body, and ensure the personal safety of the staff.

[0020] Secondly, the present invention designs a motor drive mechanism, which starts the motor to rotate the rotating long rod, thereby driving the connecting short strips and the connecting long rod to move, so that the sensor and the emitter can swing left and right. This design significantly expands the detection range of the near-electricity warning, improves the practicality and reliability of the warning system, and ensures that the near-electricity risk can be effectively detected in various complex environments.

[0021] The present invention also takes into account the installation and heat dissipation issues of the sensor and the emitter. Through the design of the partition frame and the T-shaped fitting strip, an appropriate gap is maintained between the sensor and the emitter, and a colloid net is used to avoid mutual interference. At the same time, the setting of the limit baffle and the square groove ensures the airflow on the front and rear surfaces of the sensor, which helps to dissipate heat. In addition, when the sensor is placed on the placement plate, the sensor is limited and fixed by squeezing the limit baffle and pulling the spring. This design not only improves the convenience of installation, but also ensures the stability and accuracy of the sensor during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 The figure is a schematic diagram of the three-dimensional structure of a near-electric warning device according to an embodiment of the present invention.

[0024] Figure 2 The figure is a schematic diagram of the front internal structure of a near electric warning device according to an embodiment of the present invention.

[0025] Figure 3 It is a schematic diagram of the surface split structure of the placement plate in an embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the internal split structure of the placement plate in an embodiment of the present invention.

[0027] Figure 5 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0028] Figure 6 It is a schematic diagram of the internal split structure of the adjustment seat in an embodiment of the present invention.

[0029] Figure 7 for Figure 6 Schematic diagram of the structure at point B in the middle.

[0030] The accompanying drawings are marked as follows: 1. emitter; 2. signal emitter head; 3. transmission connection line; 4. placement plate; 5. T-shaped fitting groove; 6. T-shaped fitting strip; 7. partition frame; 8. colloid net; 9. connecting slot; 10. circular slot; 11. first spring; 12. connecting sleeve rod; 13. limit baffle; 14. square slot; 15. connecting rod; 16. sensor; 17. trigger circuit; 18. output circuit; 19. induction coil; 20. current oscillator; 21. induction connection line; 22. contact terminal; 23. connecting short rod; 24. limit clamp; 25. adjustment seat; 26. connecting groove; 27. movable rod; 28. fixing ring; 29. ​​connecting long strip; 30. limit hole; 31. motor; 32. rotating long rod; 33. connecting short strip; 34. connecting long rod; 35. movable plate; 36. second spring. DETAILED DESCRIPTION

[0031] The following descriptions of the embodiments are with reference to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented. In the description of the present invention, it should be understood that the terms "longitudinal", "length", "circumferential", "front", "rear", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0032] Please also refer to Figure 1-7 As shown, an embodiment of the present invention provides a near-electric warning device, including:

[0033] An emitter 1, used for issuing an early warning signal;

[0034] A sensor 16 is disposed on the emitter 1. The sensor 16 includes a trigger circuit 17, an output circuit 18, an induction coil 19, a current oscillator 20 and an induction connection line 21. The induction coil 19 is electrically connected to the current oscillator 20 and is used to detect the electric field strength through electromagnetic induction;

[0035] A contact terminal 22, connected to the current oscillator 20 through the induction connection line 21, for contacting with a live line or device to transfer an induction current to the current oscillator 20;

[0036] The transmission connection line 3 is used to transmit the warning signal from the sensor 16 to the emitter 1.

[0037] Specifically, in the embodiment of the present invention, a signal head 2 is fixedly connected to the upper surface of the emitter 1, which is used to send out a warning signal when a dangerous situation is detected. A transmission connection line 3 is fixedly connected to the lower surface of the emitter 1, and the transmission connection line 3 is responsible for transmitting the signal detected by the sensor 16 to the emitter 1, and then to the receiving end inside the cab.

[0038] The sensor 16 is located on the front surface of the transmitter 1, and the lower surface of the sensor 16 is fixedly connected to the end of the transmission connection line 3 away from the transmitter 1. The sensor 16 integrates components such as a trigger circuit 17, an output circuit 18, a current oscillator 20, and an induction coil 19. The trigger circuit 17 and the output circuit 18 are electrically connected, wherein the output circuit 18 is located below the trigger circuit 17. The current oscillator 20 is located between the trigger circuit 17 and the output circuit 18, and its output end is connected to a contact terminal 22 through an induction connection line 21. The induction coil 19 and the current oscillator 20 are arranged in a surrounding manner, and the output end of the current oscillator 20 is fixedly connected to the induction connection line 21, and the end of the induction connection line 21 away from the current oscillator 20 extends out of the interior of the sensor 16, and the end of the induction connection line 21 away from the sensor 16 is fixedly connected to the contact terminal 22. When the top of the manipulator approaches the live line or equipment, the contact end 22 fits with the live line or equipment near the top of the manipulator, and the induced current is transmitted to the current oscillator 20 by the induction connection line 21. The current oscillator 20 causes the induction coil 19 to generate an alternating magnetic field. When the metal object approaches the sensor 16, an induced current is generated in the metal object. According to Faraday's law of electromagnetic induction, the alternating magnetic field generated by the induction coil 19 will generate an induced current inside the metal object. The magnetic field of the induced current will hinder the change of the original magnetic flux, causing the oscillation of the current oscillator 20 to weaken or even stop. After the trigger circuit 17 detects the change in the oscillation state, it will determine whether it is necessary to output an early warning signal. When it is determined that the early warning signal needs to be output, the early warning signal is transmitted to the transmitter 1 through the transmission connection line 3 through the output circuit 18, and the transmitter 1 transmits the early warning signal to the receiving end inside the cab. The staff can receive the early warning signal remotely and take measures in time to ensure the safety of the measurement operation.

[0039] The two side surfaces of the sensor 16 are fixedly connected with connecting short rods 23, and the end of the connecting short rod 23 away from the sensor 16 is fixedly connected with a limit clamp ring 24, and the limit clamp ring 24 is engaged and connected with the sensing connection line 21. The front surface of the emitter 1 is fixedly connected with a placement plate 4, and the upper surface of the placement plate 4 is provided with a connecting slot 9, and the connecting slot 9 is connected with the transmission connection line 3 through.

[0040] The upper surface of the placement plate 4 is provided with a T-shaped interlocking groove 5, and the T-shaped interlocking groove 5 is located behind the connecting card slot 9. The T-shaped interlocking groove 5 is interlocked with a T-shaped interlocking strip 6, and the upper surface of the T-shaped interlocking strip 6 is fixedly connected with a partition frame 7, and the partition frame 7 is in contact with the rear surface of the sensor 16. A colloid net 8 is provided inside the partition frame 7. The front surface of the placement plate 4 is provided with a circular groove 10, and the inside of the circular groove 10 is fixedly connected with a first spring 11, and the end of the first spring 11 away from the circular groove 10 is fixedly connected with a connecting sleeve rod 12, and the end of the connecting sleeve rod 12 away from the first spring 11 is fixedly connected with a limit baffle 13, and the limit baffle 13 is located on the front surface of the placement plate 4, and the rear surface of the limit baffle 13 is in contact with the front surface of the sensor 16. The surface of the limit baffle 13 is provided with a square groove 14, and the square groove 14 is located above the placement plate 4. Connecting rods 15 are evenly distributed inside the square groove 14.

[0041] During the installation of the near-electricity warning device, pick up the partition frame 7 and fit the T-shaped interlocking strip 6 into the T-shaped interlocking groove 5. Install the partition frame 7 on the upper surface of the placement plate 4, leaving a gap between the sensor 16 and the emitter 1. The colloid net 8 can be used to avoid interference between the emitter 1 and the sensor 16. At the same time, the square groove 14 set on the surface of the limit baffle 13 forms a circulating airflow on the front and rear surfaces of the sensor 16 to ensure the heat dissipation of the sensor 16. Place the sensor 16 on the upper surface of the placement plate 4, so that the sensor 16 squeezes the limit baffle 13, so that the limit baffle 13 drives the connecting sleeve rod 12 forward, pulls the first spring 11, and uses the stress rebound of the first spring 11 to limit and fix the sensor 16 on the limit baffle 13, which is convenient for detecting and warning of near-electricity.

[0042] The rear surface of the emitter 1 is provided with an adjustment seat 25, and the front surface of the adjustment seat 25 is provided with a connecting groove 26. The inside of the adjustment seat 25 is rotatably connected with a movable rod 27, and the movable rod 27 is connected through the connecting groove 26. The end of the movable rod 27 close to the connecting groove 26 is fixedly connected to the rear surface of the emitter 1, and the side surface of the movable rod 27 is fixedly connected with a fixing ring 28, and the side surface of the fixing ring 28 is fixedly connected with a connecting long strip plate 29. The surface of the connecting long strip plate 29 is provided with a limiting hole 30, and the inside of the adjustment seat 25 is fixedly connected with a motor 31, and the motor 31 is located on both sides of the movable rod 27. The output end of the motor 31 is fixedly connected with a rotating long rod 32, and the side surface of the rotating long rod 32 is fixedly connected with a connecting short strip plate 33, and the lower surface of the connecting short strip plate 33 is fixedly connected with a connecting long rod 34, and the connecting long rod 34 is connected through the limiting hole 30. The end of the connecting long rod 34 away from the connecting short strip 33 is movably connected to the movable plate 35 through a bearing, and a second spring 36 is fixedly connected to the upper surface of the movable plate 35, and the second spring 36 is located on both sides of the connecting long rod 34, and the end of the second spring 36 away from the movable plate 35 is fixedly connected to the lower surface of the connecting long strip 29.

[0043] During the process of near-electricity detection and warning, the motor 31 is started to drive the rotating long rod 32 to rotate, so that the rotating long rod 32 drives the connecting short strip 33 to swing downward, and the connecting long rod 34 moves downward, thereby driving the connecting long strip 29 to swing downward, and the fixed ring 28 drives the movable rod 27 to deflect, so that the emitter 1 drives the sensor 16 to swing left or right, which can expand the detection range of the near-electricity warning and ensure the detection effect of the near-electricity warning.

[0044] When in use, pick up the partition frame 7 and fit the T-shaped fitting strip 6 into the inside of the T-shaped fitting groove 5, and install the partition frame 7 on the upper surface of the placement plate 4, so that a gap is left between the sensor 16 and the emitter 1, and the colloid net 8 can be used to avoid interference between the emitter 1 and the sensor 16. At the same time, the square groove 14 set on the surface of the limit baffle 13 is used to form a circulating airflow on the front and rear surfaces of the sensor 16 to ensure that the heat of the sensor 16 is dissipated, and the sensor 16 is placed on the upper surface of the placement plate 4, so that the sensor 16 squeezes the limit baffle 13, so that the limit baffle 13 drives the connecting sleeve rod 12 forward, pulls the first spring 11, and uses the stress rebound of the first spring 11 to limit and fix the sensor 16. In the process of near-electricity detection and early warning, start the motor 31 to drive the rotating long rod 32 to rotate, so that the rotating long rod 32 drives the connecting short strip plate 33 to swing downward, so that the connecting long rod 34 moves downward, thereby driving The connecting strip 29 swings downward, so that the fixed ring 28 drives the movable rod 27 to deflect, so that the transmitter 1 drives the sensor 16 to swing left or right, which can expand the detection range of the near-electric warning. When the top of the mechanical arm approaches the live line or equipment, the contact end 22 is fitted with the live line or equipment near the top of the mechanical arm, and the induced current is transmitted to the current oscillator 20 by the induction connection line 21. The current oscillator 20 causes the induction coil 19 to generate an alternating magnetic field. When a metal object approaches the sensor 16, an induced current will be generated in the metal. According to Faraday's law of electromagnetic induction, the magnetic field of the induced current will hinder the change of the original magnetic flux, causing the oscillation to weaken or even stop. When the detection circuit detects a change in the oscillation state, it will determine whether to output a signal, and the output circuit 18 will transmit the warning signal to the transmitter 1 through the transmission connection line 3, and the transmitter 1 will transmit the warning signal to the receiving end inside the cab, so as to promptly remind the staff to ensure the normal progress of the measurement operation.

[0045] It can be seen from the above description that compared with the prior art, the beneficial effects brought by the embodiments of the present invention are:

[0046] First, the present invention adopts the principle of electromagnetic induction. By fitting the contact end with the live line or equipment, the induction connecting line is used to transmit the induced current to the current oscillator, thereby causing the induction coil to generate an alternating magnetic field. The alternating magnetic field will generate an induced current and affect the change of the original magnetic flux, resulting in a change in the oscillation state. By monitoring this change, it is determined whether it is necessary to output a warning signal. This mechanism ensures the accuracy and timeliness of the near-electricity warning, can effectively prevent safety accidents caused by approaching a live body, and ensure the personal safety of the staff.

[0047] Secondly, the present invention designs a motor drive mechanism, which starts the motor to rotate the rotating long rod, thereby driving the connecting short strips and the connecting long rod to move, so that the sensor and the emitter can swing left and right. This design significantly expands the detection range of the near-electricity warning, improves the practicality and reliability of the warning system, and ensures that the near-electricity risk can be effectively detected in various complex environments.

[0048] The present invention also takes into account the installation and heat dissipation issues of the sensor and the emitter. Through the design of the partition frame and the T-shaped fitting strip, an appropriate gap is maintained between the sensor and the emitter, and a colloid net is used to avoid mutual interference. At the same time, the setting of the limit baffle and the square groove ensures the airflow on the front and rear surfaces of the sensor, which helps to dissipate heat. In addition, when the sensor is placed on the placement plate, the sensor is limited and fixed by squeezing the limit baffle and pulling the spring. This design not only improves the convenience of installation, but also ensures the stability and accuracy of the sensor during operation.

[0049] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A near electric warning device, characterized in that: include: A transmitter, used for sending out a warning signal; A sensor is arranged on the emitter, the sensor comprising a trigger circuit, an output circuit, an induction coil, a current oscillator and an induction connecting line, the induction coil is electrically connected to the current oscillator, and is used to detect the electric field strength through electromagnetic induction; A contact terminal, connected to the current oscillator through the induction connection line, used for contacting with a live line or device to transfer an induction current to the current oscillator; A transmission connection line is used to transmit the warning signal from the sensor to the emitter.

2. The near electric warning device according to claim 1, characterized in that: The lower surface of the sensor is fixedly connected to one end of the transmission connection line away from the transmitter; the output circuit is located below the trigger circuit and is electrically connected to the trigger circuit, the current oscillator is located between the trigger circuit and the output circuit, and the induction coil is arranged in a surrounding manner with the current oscillator; the output end of the current oscillator is fixedly connected to the induction connection line.

3. The near electric warning device according to claim 2, characterized in that: Both side surfaces of the sensor are fixedly connected with connecting short rods, one end of the connecting short rod away from the sensor is fixedly connected with a limit clamp ring, and the limit clamp ring is engaged and connected with the sensing connecting line.

4. The near electric warning device according to claim 3, characterized in that: A placement plate is fixedly connected to the front surface of the emitter, and the placement plate is located below the sensor. A communication slot is provided on the upper surface of the placement plate, and the communication slot is connected with the transmission connection line.

5. The near electric warning device according to claim 4, characterized in that: The upper surface of the placement plate is also provided with a T-shaped embedding groove, which is located behind the connecting card slot, and the inside of the T-shaped embedding groove is embedded with a T-shaped embedding strip; the upper surface of the T-shaped embedding strip is fixedly connected with a partition frame, and the partition frame is attached to the rear surface of the sensor, and a colloid net is arranged inside the partition frame.

6. The near electric warning device according to claim 4, characterized in that: A circular groove is provided on the front surface of the placement plate, a first spring is fixedly connected inside the circular groove, and a connecting sleeve rod is fixedly connected to one end of the first spring away from the circular groove.

7. The near electric warning device according to claim 6, characterized in that: One end of the connecting sleeve rod away from the first spring is fixedly connected to a limit baffle, the limit baffle is located on the front surface of the placement plate, the rear surface of the limit baffle is in contact with the front surface of the sensor, a square groove is provided on the surface of the limit baffle, the square groove is located above the placement plate, and connecting rods are evenly distributed inside the square groove.

8. The near electric warning device according to claim 1, characterized in that: An adjustment seat is provided on the rear surface of the emitter, a connecting groove is provided on the front surface of the adjustment seat, a movable rod is rotatably connected inside the adjustment seat, the movable rod is connected through the connecting groove, and one end of the movable rod close to the connecting groove is fixedly connected to the rear surface of the emitter.

9. The near electric warning device according to claim 8, characterized in that: A fixing ring is fixedly connected to the side surface of the movable rod, a connecting long strip is fixedly connected to the side surface of the fixing ring, and a limiting hole is arranged on the surface of the connecting long strip.

10. The electric proximity warning device according to claim 9, characterized in that: A motor is fixedly connected to the inside of the adjustment seat, and the motor is located on both sides of the movable rod. A rotating long rod is fixedly connected to the output end of the motor. The side surface of the rotating long rod is fixedly connected to a connecting short strip plate. The lower surface of the connecting short strip plate is fixedly connected to a connecting long rod. The connecting long rod is connected through the limiting hole, and one end of the connecting long rod away from the connecting short strip plate is movably connected to the movable plate through a bearing. A second spring is fixedly connected to the upper surface of the movable plate, and the second spring is located on both sides of the connecting long rod. One end of the second spring away from the movable plate is fixedly connected to the lower surface of the connecting long strip plate.

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