CN113824044B - Safety monitoring direct current ground fault protection device - Google Patents
Safety monitoring direct current ground fault protection device Download PDFInfo
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- CN113824044B CN113824044B CN202111269572.6A CN202111269572A CN113824044B CN 113824044 B CN113824044 B CN 113824044B CN 202111269572 A CN202111269572 A CN 202111269572A CN 113824044 B CN113824044 B CN 113824044B
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- protection box
- fault protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/185—Electrical failure alarms
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/16—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for repairing insulation or armouring of cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Protection Circuit Devices (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a safety monitoring direct-current ground fault protection device which comprises a movable assembly, wherein a fixed plate is arranged inside the movable assembly, and a short rod is riveted to the front side of the fixed plate. This safety monitoring direct current ground fault protection device, when the broken skin of transmission line electric leakage, the protection box can protect the damaged department of electric wire body this moment, avoids the damaged department electric leakage to hinder the people to reached and be convenient for automatic sheltering from the protection to the broken skin of ground fault protection transmission line department, avoided the electric leakage to cause the electric shock to improve the effect of personal safety nature. At this moment, the supporting force of the supporting spring can be overcome by the sliding plate to move towards the direction of the inductance device, so that the insulation glue inside the insulation glue tank can be repaired at the damaged part of the electric wire body through the one-way pressure valve, and therefore the purpose of automatically repairing the damaged electric leakage part of the grounding fault protection transmission line is achieved, manual repair is not needed, the electric leakage is reduced, and the safety is improved.
Description
Technical Field
The invention relates to the technical field of ground fault protection, in particular to a safety monitoring direct-current ground fault protection device.
Background
The ground fault protection is to warn by tripping a breaker or alarming when an electrical fault occurs between one or more phase conductors and the ground, the existing ground fault protection needs to transmit an electric signal through an electric wire when alarming the electrical fault, but the electric wire has the possibility of skin breaking and electric leakage, and a line with the skin breaking and electric leakage may cause continuous alarming of the ground fault protection, but a maintenance worker cannot repair a fault occurrence place of the ground fault protection and only can replace the new ground fault protection, so that manpower and material resources are consumed, unnecessary economic loss is caused, and in order to solve the problems, a safety monitoring direct current ground fault protection device is provided.
Disclosure of Invention
Aiming at the defects of the prior art, the invention has the advantages of being convenient for automatically shielding the ground fault protection transmission line crust breaking part, avoiding electric shock caused by electric leakage to improve personal safety, being convenient for automatically repairing the ground fault protection transmission line crust breaking electric leakage part, being free from manual repair, reducing electric leakage amount, improving safety and the like, and aims to solve the problems that the existing ground fault protection needs to transmit electric signals through electric wires when alarming the electric fault, but the electric wires have the possibility of crust breaking electric leakage, the ground fault protection can be continuously alarmed by the crust breaking electric leakage circuit, but a maintenance worker can not overhaul the ground fault occurrence place of the ground fault protection and can only replace new ground fault protection, not only consumes manpower and material resources, but also can cause unnecessary economic loss, and the invention provides the following technical scheme: the utility model provides a safety monitoring direct current ground fault protection device, includes the removal subassembly, the inside of removal subassembly is provided with the fixed plate, the front riveting of fixed plate has the quarter butt, one side riveting that the fixed plate was kept away from to the quarter butt has the carriage release arm, one side that the quarter butt was kept away from to the carriage release arm is provided with the circular arc leg, the back riveting at carriage release arm middle part has eccentric protruding dish, the front transmission of eccentric protruding dish is connected with the belt.
The induction device is characterized by further comprising a trigger assembly, an induction device is arranged inside the trigger assembly, a supporting spring is fixedly connected to the top of the induction device, a sliding plate is fixedly connected to one side, away from the induction device, of the supporting spring, a connecting rod is fixedly connected to the top of the sliding plate, a sealing plate is fixedly connected to one side, away from the sliding plate, of the connecting rod, and a connecting spring is fixedly connected to the top of the sealing plate.
The protection box comprises a protection box body, and is characterized by further comprising an electric wire body, wherein current sensors are arranged on the outer arms at two ends of the electric wire body, the protection box is sleeved on the outer arms of the electric wire body, a moving assembly is arranged inside the protection box, an insulating glue groove is formed in the protection box, a hollow liquid injection pipe is arranged inside the insulating glue groove, a one-way pressure valve is arranged at the bottom of the insulating glue groove, and a trigger assembly is arranged inside the protection box.
Furthermore, the fixed plate is welded inside the protection box, and the front structure of the fixed plate is symmetrically arranged, so that the protection box can be conveniently driven to move.
Furthermore, a motor is arranged on the back of the eccentric convex disc, and a switch of the motor is in on-off relation with the inductance device, so that the inductance device can control the motor to stop conveniently.
Further, the arc legs are arranged on the outer side of the electric wire body, and the radian inside the arc legs is matched with the radian of the outer arm of the electric wire body.
Furthermore, the sliding plate is made of nichrome material and is arranged right above the inductance device, so that the sliding plate can be conveniently controlled to move.
Furthermore, the outer arm of the sealing plate is connected in the insulating glue tank in a sealing and sliding manner, and a large amount of insulating glue is arranged in the insulating glue tank, so that the damaged part of the wire body can be repaired conveniently.
Furthermore, one side of the connecting spring, which is far away from the sealing plate, is fixedly connected in the protection box, so that the sealing plate is convenient to reset.
Furthermore, the structure inside the protection box is symmetrically arranged, and the protection box is made of insulating materials, so that the electric leakage position is protected conveniently.
Furthermore, the current sensor of the outer arm of electric wire body both ends has the electric connection relation with the motor at alarm and eccentric protruding dish back, is convenient for report to the police and be convenient for driving motor to start to the electric leakage.
Compared with the prior art, the invention provides a safety monitoring direct current ground fault protection device, which has the following beneficial effects:
1. this safety monitoring direct current ground fault protection device, through eccentric convex disc and arc leg, the electric wire body, the quarter butt, the fixed plate, the protection box, induction system's cooperation is used, when the broken skin electric leakage of transmission line, the both ends of electric wire body produce the electric current poor, the alarm can send the warning this moment, remind workman's transmission line broken skin electric leakage, avoid ground fault protection to send wrong fault alarm, the motor can drive eccentric convex disc motion this moment, further make the arc leg support the outside at the electric wire body, quarter butt and fixed plate can receive a pulling force this moment, further make the outer wall motion of protection box at the electric wire body, when the protection box moves electric wire body electric leakage department, induction system can produce the electromagnetic field this moment, make protection box stop motion, the protection box can protect the damage of electric wire body this moment, avoid the electric leakage of damage department to hinder the people, thereby reached and be convenient for automatic ground fault protection transmission line skin breakage department shelters from the protection, avoid electric leakage to initiate the effect that the electric shock improves personal safety.
2. This safety monitoring direct current ground fault protection device, through sliding plate and supporting spring, inductance device, the closing plate, the insulating glue cistern, the one-way pressure valve, the cooperation of electric wire body is used, supporting force that supporting spring can be overcome to the sliding plate this moment is to the motion of inductance device direction, further make the closing plate at the inside downstream of insulating glue cistern, the insulating glue solution of insulating glue solution inslot portion can be restoreed the damaged department of electric wire body through the one-way pressure valve this moment, need not manual processing, thereby reached and be convenient for repair ground fault protection transmission line crust breaking electric leakage department automatically, need not artifical the repair, reduce the electric leakage, improve the effect of security.
Drawings
FIG. 1 is a schematic perspective cross-sectional view of the overall structure of the present invention;
FIG. 2 is a schematic front view of the movable wall structure of the present invention;
FIG. 3 is a schematic front view of the sealing plate structure of the present invention;
FIG. 4 is a circuit diagram of an inductive device of the present invention.
In the figure: 1. a wire body; 2. a current sensor; 3. a protection box; 4. a moving assembly; 5. an insulating glue tank; 6. a hollow liquid injection pipe; 7. a one-way pressure valve; 8. a trigger component; 41. a fixing plate; 42. a short bar; 43. a moving arm; 44. a circular arc leg; 45. an eccentric cam; 46. a belt; 81. an inductive device; 82. a support spring; 83. a sliding plate; 84. a connecting rod; 85. a sealing plate; 86. a spring is connected.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment of the safety monitoring direct current ground fault protection device is as follows:
the first embodiment is as follows:
referring to fig. 1-2, a safety monitoring dc ground fault protection device includes a moving assembly 4, a fixing plate 41 is disposed inside the moving assembly 4, the fixing plate 41 is welded inside the protection box 3, and the front surface of the fixing plate 41 is symmetrically configured to facilitate driving the protection box 3 to move, a short rod 42 is riveted on the front surface of the fixing plate 41, a moving arm 43 is riveted on one side of the short rod 42 away from the fixing plate 41, an arc leg 44 is disposed on one side of the moving arm 43 away from the short rod 42, the arc leg 44 is disposed on the outer side of the wire body 1, the inner radian of the arc leg 44 is matched with the radian of the outer arm of the wire body 1, an eccentric convex disc 45 is riveted on the back of the middle portion of the moving arm 43, and the front surface of the eccentric convex disc 45 is connected to a belt 46 in a transmission manner.
Still include electric wire body 1, the outer arm at 1 both ends of electric wire body is provided with current sensor 2, the current sensor 2 of the outer arm in 1 both ends of electric wire body has the electric connection relation with the motor at alarm and eccentric flange 45 back, be convenient for report to the police and be convenient for driving motor to start the electric leakage, the outer arm of electric wire body 1 has cup jointed protection box 3, the inside structural symmetry of protection box 3 sets up, and protection box 3 comprises for insulating material, be convenient for protect electric leakage department, the inside of protection box 3 is equipped with removal subassembly 4, the inside of protection box 3 is provided with insulating glue cistern 5, the inside of insulating glue cistern 5 is equipped with a large amount of insulating glue solution, be convenient for repair electric wire body 1 damaged department, the inside of insulating glue cistern 5 is provided with hollow injection pipe 6, the bottom of insulating glue cistern 5 is provided with one-way pressure valve 7, the inside of protection box 3 is equipped with triggers subassembly 8.
When the transmission line breaks the skin electric leakage, the both ends of electric wire body 1 produce the electric current poor, the alarm can send the warning this moment, remind workman's transmission line to break the skin electric leakage, avoid ground fault protection to send wrong fault alarm, the motor can drive eccentric protruding dish 45 motion this moment, further make arc leg 44 support the outside at electric wire body 1, short bar 42 and fixed plate 41 can receive a power of dragging this moment, further make protection box 3 move at the outer wall of electric wire body 1, when protection box 3 moves electric wire body 1 electric leakage department, inductor 81 can produce the electromagnetic field this moment, make protection box 3 stop motion, protection box 3 can protect the damage department of electric wire body 1 this moment, avoid the damage department electric leakage to hinder the people, thereby reached and be convenient for carry out the protection of sheltering from ground fault protection transmission line department automatically, avoid electric leakage to cause the electric shock to improve the effect of personal security.
Example two:
referring to fig. 1, fig. 3, and fig. 4, a safety monitoring dc ground fault protection device includes a trigger assembly 8, an inductance device 81 is disposed inside the trigger assembly 8, a motor is disposed on the back of an eccentric convex disc 45, and a switch of the motor is in an on-off relationship with the inductance device 81, so that the inductance device 81 controls the motor to stop, a support spring 82 is fixedly connected to the top of the inductance device 81, a sliding plate 83 is fixedly connected to one side of the support spring 82 away from the inductance device 81, the sliding plate 83 is made of nichrome material, and the sliding plate 83 is directly above the inductance device 81, so that the sliding plate 83 is conveniently controlled to move, a connecting rod 84 is fixedly connected to the top of the sliding plate 83, a sealing plate 85 is fixedly connected to one side of the connecting rod 84 away from the sliding plate 83, an outer arm of the sealing plate 85 is slidably connected to the inside of an insulating glue tank 5, a connecting spring 86 is fixedly connected to the top of the sealing plate 85, and a side of the spring 86 away from the sealing plate 85 is fixedly connected to the inside of the protection box 3, so that the sealing plate 85 can be conveniently reset.
Still include electric wire body 1, the outer arm at 1 both ends of electric wire body is provided with current sensor 2, the current sensor 2 of the outer arm at 1 both ends of electric wire body has the electric connection relation with the motor at alarm and eccentric cam 45 back, be convenient for report to the police and be convenient for driving motor to start the electric leakage, the outer arm of electric wire body 1 has cup jointed protection box 3, the inside structural symmetry of protection box 3 sets up, and protection box 3 comprises for insulating material, be convenient for protect electric leakage department, the inside of protection box 3 is equipped with removal subassembly 4, the inside of protection box 3 is provided with insulating glue cistern 5, the inside of insulating glue cistern 5 is equipped with a large amount of insulating glue solution, be convenient for repair 1 damaged department of electric wire body, the inside of insulating glue cistern 5 is provided with hollow injection liquid pipe 6, the bottom of insulating glue cistern 5 is provided with one-way pressure valve 7, the inside of protection box 3 is equipped with triggers subassembly 8.
When the transmission line breaks the skin and leaks electricity, the supporting force that supporting spring 82 can be overcome to the motion of inductance means 81 direction by sliding plate 83 this moment, further make closing plate 85 in the inside downstream of insulating glue cistern 5, the inside insulating glue liquid of insulating glue cistern 5 can pass through one-way pressure valve 7 and restore the damaged department of electric wire body 1 this moment, need not manual handling, thereby reached and be convenient for repair ground fault protection transmission line breaks the skin and leaks electricity automatically department, need not manual repair, reduce the amount of leakage, the effect of security improves.
Example three:
referring to fig. 1-4, a safety monitoring dc ground fault protection device includes a moving assembly 4, a fixing plate 41 is disposed inside the moving assembly 4, the fixing plate 41 is welded inside the protection box 3, and the front surface of the fixing plate 41 is symmetrically configured to facilitate driving the protection box 3 to move, a short rod 42 is riveted on the front surface of the fixing plate 41, a moving arm 43 is riveted on one side of the short rod 42 away from the fixing plate 41, an arc leg 44 is disposed on one side of the moving arm 43 away from the short rod 42, the arc leg 44 is disposed on the outer side of the wire body 1, the inner radian of the arc leg 44 is matched with the radian of the outer arm of the wire body 1, an eccentric convex disc 45 is riveted on the back of the middle portion of the moving arm 43, and the front surface of the eccentric convex disc 45 is connected to a belt 46 in a transmission manner.
Still including triggering assembly 8, triggering assembly 8's inside and being provided with inductance device 81, eccentric protruding dish 45's back is provided with the motor, and the switch of this motor has the on-off relation with inductance device 81, be convenient for inductance device 81 control motor stops, inductance device 81's top fixedly connected with supporting spring 82, one side fixedly connected with sliding plate 83 that inductance device 81 was kept away from to supporting spring 82, sliding plate 83 is nichrome material, and sliding plate 83 is directly over inductance device 81, be convenient for control sliding plate 83 removes, sliding plate 83's top fixedly connected with connecting rod 84, one side fixedly connected with closing plate 85 of sliding plate 83 is kept away from to connecting rod 84, the sealed sliding connection of outer arm of closing plate 85 is in the inside of insulating glue groove 5, one side fixed connection that closing plate 85 was kept away from to closing plate 85's top fixedly connected with connecting spring 86 is in the inside of protection box 3, it resets to be convenient for closing plate 85.
Still include electric wire body 1, the outer arm at 1 both ends of electric wire body is provided with current sensor 2, the current sensor 2 of the outer arm at 1 both ends of electric wire body has the electric connection relation with the motor at alarm and eccentric cam 45 back, be convenient for report to the police and be convenient for driving motor to start the electric leakage, the outer arm of electric wire body 1 has cup jointed protection box 3, the inside structural symmetry of protection box 3 sets up, and protection box 3 comprises for insulating material, be convenient for protect electric leakage department, the inside of protection box 3 is equipped with removal subassembly 4, the inside of protection box 3 is provided with insulating glue cistern 5, the inside of insulating glue cistern 5 is equipped with a large amount of insulating glue solution, be convenient for repair 1 damaged department of electric wire body, the inside of insulating glue cistern 5 is provided with hollow injection liquid pipe 6, the bottom of insulating glue cistern 5 is provided with one-way pressure valve 7, the inside of protection box 3 is equipped with triggers subassembly 8.
When the transmission line breaks the skin electric leakage, the both ends of electric wire body 1 produce the electric current poor, the alarm can send the warning this moment, remind workman's transmission line to break the skin electric leakage, avoid ground fault protection to send wrong fault alarm, the motor can drive eccentric protruding dish 45 motion this moment, further make arc leg 44 support the outside at electric wire body 1, short bar 42 and fixed plate 41 can receive a power of dragging this moment, further make protection box 3 move at the outer wall of electric wire body 1, when protection box 3 moves electric wire body 1 electric leakage department, inductor 81 can produce the electromagnetic field this moment, make protection box 3 stop motion, protection box 3 can protect the damage department of electric wire body 1 this moment, avoid the damage department electric leakage to hinder the people, thereby reached and be convenient for carry out the protection of sheltering from ground fault protection transmission line department automatically, avoid electric leakage to cause the electric shock to improve the effect of personal security.
At this time, the sliding plate 83 will overcome the supporting force of the supporting spring 82 and move towards the direction of the inductance device 81, so that the sealing plate 85 further moves downwards in the insulating glue tank 5, and at this time, the insulating glue in the insulating glue tank 5 can repair the damaged part of the electric wire body 1 through the one-way pressure valve 7 without manual processing, thereby achieving the effect of facilitating automatic repair of the ground fault protection transmission line skin-breaking electric leakage part, avoiding manual repair, reducing the electric leakage and improving the safety.
The working principle is that when the transmission line is damaged and leaks electricity, the current sensors 2 are arranged on the outer arms at the two ends of the electric wire body 1, so that current difference can be generated at the two ends of the electric wire body 1, and the current sensors 2 on the outer arms at the two ends of the electric wire body 1 are electrically connected with the alarm, so that the alarm can give an alarm to remind workers of the damage and the electricity leakage of the transmission line, and the ground fault protection is prevented from giving false fault alarm.
Because the current sensor 2 of the outer arm at the two ends of the wire body 1 is electrically connected with the motor at the back of the eccentric convex disc 45, the motor can drive the eccentric convex disc 45 to move at the moment, and because the back of the middle part of the moving arm 43 is riveted with the eccentric convex disc 45, the moving arm 43 can receive a driving force of the eccentric convex disc 45 at the moment, because the side of the moving arm 43 away from the short rod 42 is provided with the arc leg 44, the arc leg 44 is arranged at the outer side of the wire body 1, and the radian inside the arc leg 44 is matched with the radian of the outer arm of the wire body 1, the arc leg 44 can be abutted against the outer part of the wire body 1 at the moment, and because the front of the fixed plate 41 is riveted with the short rod 42, and the side of the short rod 42 away from the fixed plate 41 is riveted with the moving arm 43, at the moment, the short rod 42 and the fixed plate 41 can receive a pulling force, because the fixed plate 41 is welded inside the protection box 3, and the structure of the front of the fixed plate 41 is symmetrically arranged, the fixed plate 41 can drive the protection box 3 to move at the outer wall of the wire body 1 at the moment.
Because the trigger assembly 8 is arranged in the protection box 3, and the inductance device 81 is arranged in the trigger assembly 8, when the protection box 3 moves to the electric leakage position of the electric wire body 1, the inductance device 81 can generate an electromagnetic field, and because the switch of the motor at the back of the eccentric convex disc 45 is in on-off relation with the inductance device 81, the motor at the back of the eccentric convex disc 45 can stop running at the moment, the protection box 3 further stops running, and at the moment, the protection box 3 can stop at the broken position of the electric wire body 1, and because the protection box 3 is made of an insulating material, the protection box 3 can protect the broken position of the electric wire body 1 at the moment, the electric leakage at the broken position is avoided from hurting people, so that the effects of conveniently and automatically shielding and protecting the broken position of the ground fault protection transmission line are achieved, electric leakage is avoided, and electric shock is caused, and personal safety is improved.
Because the top of the inductance device 81 is fixedly connected with the supporting spring 82, one side of the supporting spring 82 far away from the inductance device 81 is fixedly connected with the sliding plate 83, the sliding plate 83 is made of nichrome material, and the sliding plate 83 is right above the inductance device 81, at this time, the sliding plate 83 can overcome the supporting force of the supporting spring 82 to move towards the inductance device 81, because the top of the sliding plate 83 is fixedly connected with the connecting rod 84, one side of the connecting rod 84 far away from the sliding plate 83 is fixedly connected with the sealing plate 85, and the outer arm of the sealing plate 85 is connected in the insulating glue groove 5 in a sealing and sliding manner, at this time, the sealing plate 85 can move downwards in the insulating glue groove 5, and because the insulating glue groove 5 is internally provided with a large amount of insulating glue, and the bottom of the insulating glue groove 5 is provided with the one-way pressure valve 7, at this time, the insulating glue in the insulating glue groove 5 can repair the damaged part of the wire body 1 through the one-way pressure valve 7 without manual treatment, thereby achieving the effect of automatically repairing the damaged part of the ground fault protection transmission line crust breaking leakage.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A safety monitoring direct current ground fault protection device, includes removal subassembly (4), its characterized in that: a fixed plate (41) is arranged inside the moving assembly (4), a short rod (42) is riveted to the front face of the fixed plate (41), a moving arm (43) is riveted to one side, far away from the fixed plate (41), of the short rod (42), an arc leg (44) is arranged on one side, far away from the short rod (42), of the moving arm (43), an eccentric convex disc (45) is riveted to the back of the middle of the moving arm (43), and a belt (46) is in transmission connection with the front face of the eccentric convex disc (45);
the induction heating device is characterized by further comprising a trigger assembly (8), an induction device (81) is arranged inside the trigger assembly (8), a supporting spring (82) is fixedly connected to the top of the induction device (81), a sliding plate (83) is fixedly connected to one side, far away from the induction device (81), of the supporting spring (82), a connecting rod (84) is fixedly connected to the top of the sliding plate (83), a sealing plate (85) is fixedly connected to one side, far away from the sliding plate (83), of the connecting rod (84), and a connecting spring (86) is fixedly connected to the top of the sealing plate (85);
still include electric wire body (1), the outer arm at electric wire body (1) both ends is provided with current sensor (2), the outer arm of electric wire body (1) has cup jointed protection box (3), the inside of protection box (3) is equipped with removes subassembly (4), the inside of protection box (3) is provided with insulating glue cistern (5), the inside of insulating glue cistern (5) is provided with hollow notes liquid pipe (6), the bottom of insulating glue cistern (5) is provided with one-way pressure valve (7), the inside of protection box (3) is equipped with triggers subassembly (8), the back of eccentric protruding dish (45) is provided with the motor, and the switch of this motor has the on-off relation with inductance device (81).
2. A safety monitoring dc ground fault protection device according to claim 1, wherein: the fixing plate (41) is welded inside the protection box (3), and the front surface of the fixing plate (41) is symmetrically arranged.
3. A safety monitoring dc ground fault protection device according to claim 1, wherein: the arc legs (44) are arranged on the outer side of the wire body (1), and the radian of the inner parts of the arc legs (44) is matched with the radian of the outer arms of the wire body (1).
4. A safety monitoring dc ground fault protection device according to claim 2, wherein: the sliding plate (83) is made of nichrome material, and the sliding plate (83) is arranged right above the inductance device (81).
5. A safety monitoring dc ground fault protection device according to claim 2, wherein: the outer arm of the sealing plate (85) is connected in the insulating glue tank (5) in a sealing and sliding mode, and a large amount of insulating glue is arranged in the insulating glue tank (5).
6. A safety monitoring dc ground fault protection device according to claim 2, wherein: one side of the connecting spring (86) far away from the sealing plate (85) is fixedly connected inside the protection box (3).
7. A safety monitoring dc ground fault protection device according to claim 3, wherein: the structure inside the protection box (3) is symmetrically arranged, and the protection box (3) is made of insulating materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269572.6A CN113824044B (en) | 2021-10-29 | 2021-10-29 | Safety monitoring direct current ground fault protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111269572.6A CN113824044B (en) | 2021-10-29 | 2021-10-29 | Safety monitoring direct current ground fault protection device |
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| CN113824044A CN113824044A (en) | 2021-12-21 |
| CN113824044B true CN113824044B (en) | 2023-01-13 |
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| CN202111269572.6A Active CN113824044B (en) | 2021-10-29 | 2021-10-29 | Safety monitoring direct current ground fault protection device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201589839U (en) * | 2009-12-25 | 2010-09-22 | 上海希明电气技术有限公司 | Integrated device for inspecting ground fault of direct-current system |
| CN102385020A (en) * | 2010-08-20 | 2012-03-21 | 施耐德电器工业公司 | Directional detection of an earth fault with a single sensor |
| CN110672984A (en) * | 2019-11-22 | 2020-01-10 | 国网四川省电力公司检修公司 | Portable direct current system ground fault detection device |
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| US9759759B2 (en) * | 2015-07-15 | 2017-09-12 | Vale S.A. | Apparatus and method for sensing a leakage current between first and second locations in a single wire earth return circuit |
| CN111864694B (en) * | 2019-04-30 | 2022-09-27 | 上海复旦微电子集团股份有限公司 | Residual current protection circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201589839U (en) * | 2009-12-25 | 2010-09-22 | 上海希明电气技术有限公司 | Integrated device for inspecting ground fault of direct-current system |
| CN102385020A (en) * | 2010-08-20 | 2012-03-21 | 施耐德电器工业公司 | Directional detection of an earth fault with a single sensor |
| CN110672984A (en) * | 2019-11-22 | 2020-01-10 | 国网四川省电力公司检修公司 | Portable direct current system ground fault detection device |
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