An efficient troubleshooting intelligent circuit breaker

Abstract

The present invention relates to the technical field of circuit breakers, and specifically to an efficient troubleshooting intelligent circuit breaker, comprising a circuit breaker housing, an electric push rod embedded in the inner wall of the circuit breaker housing, a maintenance box fixedly connected to the movable end of the electric push rod, a rectangular hole opened in the side wall of the maintenance box, a rectangular block slidably connected to the inner wall of the rectangular hole, a lead screw rotatably connected to the inner wall of the rectangular block, a cylindrical grinding disc connected to the top wall of the rectangular block through a locking component, a plurality of through holes evenly distributed on the inner side wall of the cylindrical grinding disc, and a rubber bladder fixedly installed on the inner wall of each through hole. The present invention sets structures such as a temperature sensor, a nut, and a brush plate. When a high temperature fault occurs in the circuit breaker, a micro motor is turned on, and under the action of a plurality of first connecting rods and a plurality of second connecting rods, the brush plate is tilted and moved outward for a distance inside the through hole, and the rubber bladder is squeezed outward to produce deformation, so as to start the intelligent troubleshooting function.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to an efficient troubleshooting intelligent circuit breaker. Background Art

[0002] A circuit breaker is a switch device that can close, carry and disconnect the current under normal circuit conditions and close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, protect power lines and motors, etc., and automatically cut off the circuit when they have serious overloads or short circuits and undervoltage faults. Its function is equivalent to the combination of fuse switches and over-underheating relays. Moreover, it is generally not necessary to change parts after breaking the fault current. It has been widely used.

[0003] At present, during the use of circuit breakers, when oil or oxides adhere to the moving contacts and stationary contacts inside the circuit breaker, the resistance of the moving contacts and stationary contacts will increase, thereby causing the temperature of the circuit breaker to rise and cause abnormal high temperature. At present, maintenance electricians are required to disassemble and repair the circuit breaker to complete the troubleshooting of such faults. The efficiency of troubleshooting is low, and manual troubleshooting of the fault requires the circuit breaker to be in the open and closed state for a long time, delaying the supply of electricity.

[0004] To this end, we designed an efficient troubleshooting intelligent circuit breaker. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose an efficient troubleshooting intelligent circuit breaker.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A highly efficient troubleshooting intelligent circuit breaker comprises a circuit breaker housing, an electric push rod is embedded and installed on the inner wall of the circuit breaker housing, the movable end of the electric push rod is fixedly connected to a maintenance box, a rectangular hole is opened on the side wall of the maintenance box, a rectangular block is slidably connected to the inner wall of the rectangular hole, a lead screw is passed through the top wall of the rectangular block and is rotatably connected, a cylindrical grinding disc is connected to the top wall of the rectangular block through a locking component, a plurality of through holes are evenly distributed on the inner side wall of the cylindrical grinding disc, a rubber bladder is fixedly installed on the inner wall of each through hole, and a wool bladder is slidably connected to the inner wall of the through hole A brush plate, a wedge block is slidably connected to the inner wall of the maintenance box, a cavity is opened on the inner wall of the wedge block, the lead screw is fixedly connected to the second conical wheel after passing through the wedge block, the inner wall of the cavity is rotatably connected to the first conical wheel, the inner wall of the maintenance box is fixedly connected to a support plate, the side wall of the support plate passes through and is rotatably connected to a spline shaft, the spline shaft passes through the wedge block and is keyed to the first conical wheel, the other end of the spline shaft is fixedly connected to the second bevel gear, a micro motor is fixed to the inner wall of the maintenance box, and the output end of the micro motor is fixedly connected to a cam through a rotating shaft.

[0008] Preferably, one end of the cylindrical grinding disc is fixedly connected to a conical block, the side wall of the rotating shaft is fixedly connected to a first bevel gear, the side wall of the wedge block is fixedly connected to a concave block, a rotating rod is rotatably connected to the inner wall of the concave block, the side wall of the rotating rod is fixedly connected to a friction wheel, and the side wall of the support plate is elastically connected to the side wall of the wedge block through a tension spring.

[0009] Preferably, the locking component includes a slot opened on the top wall of the rectangular block, a magnetic spring is fixedly connected to the inner wall of the slot, a block is fixedly connected to the other end of the magnetic spring, a slot is opened on the bottom wall of the cylindrical grinding plate, and the block and the slot are plugged and connected.

[0010] Preferably, the inner wall of the cylindrical grinding disc is fixedly connected to a circular tube block, the side wall of the circular tube block is evenly and rotatably connected to a plurality of first connecting rods, the other end of each of the first connecting rods is rotatably connected to an adjacent side wall of a brush plate, the side wall of the lead screw is threadedly connected to a nut, the side wall of the nut is evenly and rotatably connected to a plurality of second connecting rods, the other end of each of the second connecting rods is rotatably connected to an adjacent side wall of a brush plate.

[0011] Preferably, one end of the round rod is fixedly connected to a circular plate, the side wall of the circular plate is fixedly connected to a guide column, the side wall of the guide column is rotatably connected to a guide rod, the side wall of the concave block is fixedly connected to a box body, the inside of the box body is sealingly and slidably connected to a piston, and the end of the guide rod away from the guide column is rotatably connected to the side wall of the piston.

[0012] Preferably, a dust suction pipe is embedded in the side wall of the brush plate, and a plurality of one-way air inlet pipes and a one-way air outlet pipe are fixedly connected through the inner wall of the box body.

[0013] Preferably, one end of the one-way air inlet pipe away from the box body is fixedly connected to a corresponding dust suction pipe, and one end of the one-way air outlet pipe away from the box body is fixedly connected to an external dust collection bag.

[0014] Preferably, a wedge-shaped plate is slidably connected to the inner side wall of the maintenance box, the top wall of the wedge-shaped block is fixedly connected to an elastic C-shaped plate via a connecting plate, and a switching conductive sheet is symmetrically installed on the inner side wall of the elastic C-shaped plate.

[0015] Preferably, the two transfer conductive plates are electrically connected via a conductive wire, a telescopic spring is fixedly connected to the side wall of the connecting plate, the other end of the telescopic spring is fixedly connected to the side wall of the maintenance box, and the wedge plate and the wedge block slide against each other.

[0016] Preferably, a temperature sensor is installed on the inner wall of the maintenance box, and the temperature sensor is electrically connected to the electric push rod and the micro motor through the controller.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. By setting structures such as temperature sensors, nuts and brush plates, when the temperature inside the circuit breaker housing continues to rise and approaches abnormal high temperature, the cone block is driven to be inserted into the gap between the static contact and the moving contact, and the micro motor is turned on. Under the cooperation of multiple first connecting rods, multiple second connecting rods connected to the rotation of the nut side wall will drive the brush plate to move outward for a certain distance inside the through hole, and squeeze the rubber bladder outward to produce deformation, so as to start the intelligent troubleshooting function;

[0019] 2. By setting up structures such as magnetic springs, rubber sacs and nuts, energize the magnetic springs, and then turn on the micro motor to make the lead screw continue to rotate. Since the block has been disengaged from the slot, the lead screw will drive the cylindrical grinding disc to rotate synchronously through structures such as the nut, the second connecting rod and the brush plate, squeezing the rubber sac so that the cleaning agent is adsorbed on the side of the brush plate. The brush plate will first clean the oil stains adhered to the contact protrusions on the static contact and the moving contact. At this time, the high temperature abnormality caused by the oil stains adhered to the static contact and the moving contact can be eliminated.

[0020] 3. During the rotation of the shaft, the shaft will also drive the cam to rotate synchronously. By setting structures such as the cam, the wedge block and the rotating rod, on the one hand, the friction wheel and the rotating rod can drive the concave block and the wedge block to reciprocate synchronously in the horizontal direction, so that the lead screw drives the multiple brush plates on the cylindrical grinding disc to reciprocate in the horizontal direction during the self-rotation process, and then the multiple rotating brushes clean the oil stains on the surfaces of the static contact and the moving contact in a horizontal reciprocating manner;

[0021] 4. On the other hand, the cam can drive the friction wheel and the rotating rod to rotate. By setting the piston, the box body and the dust suction pipe and other structures, the air circulation around the static contact and the moving contact will be accelerated in the process of drawing gas through the dust suction pipe, thereby accelerating the evaporation of the detergent water stains adhering to the surface of the static contact and the moving contact, and accelerating the efficiency of troubleshooting the static contact and the moving contact;

[0022] 5. When the wedge block moves to the left to the end of the stroke, the connecting plate and the wedge plate are arranged so that the elastic U-shaped plate moves upward for a certain distance, and its inner wall will respectively clamp against the static contact and the moving contact. At this time, the two transfer conductive sheets and conductive wires on the elastic U-shaped plate will replace the static contact and the moving contact to realize the closing of the power supply circuit. After the detergent water stains on the surface of the static contact and the moving contact are completely evaporated, the power supply circuit can be powered on, avoiding long-term power-off maintenance to eliminate the fault;

[0023] 6. When eliminating high-temperature faults caused by oxides generated on the static contact and the moving contact, by setting up a second connecting rod, a cylindrical grinding wheel, a lead screw and other structures, the grinding part on the side of the cylindrical grinding wheel performs horizontal reciprocating grinding and removing the oxides on the surface of the static contact and the moving contact during the self-rotation process. At this time, the rotating rod will draw the dust generated by the grinding oxide layer into the dust suction pipe through the circular plate, the guide rod and the piston and other structures during the rotation process, thereby completing the discharge and collection of the oxide dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of an efficient troubleshooting intelligent circuit breaker proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the structure inside the maintenance box of an efficient troubleshooting intelligent circuit breaker proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the structure inside a cylindrical grinding disc in a highly efficient troubleshooting intelligent circuit breaker proposed by the present invention;

[0027] Figure 4 This is a schematic diagram of the internal structure of a box in an efficient troubleshooting intelligent circuit breaker proposed by the present invention;

[0028] Figure 5 A schematic diagram of the internal structure of a through hole in an efficient troubleshooting intelligent circuit breaker proposed by the present invention;

[0029] Figure 6 A schematic diagram of the connection relationship between the first connecting rod, the second connecting rod and the brush plate in a high-efficiency troubleshooting intelligent circuit breaker proposed by the present invention;

[0030] Figure 7A schematic diagram of the positional relationship between an elastic U-shaped plate and a transfer conductive sheet in a highly efficient troubleshooting intelligent circuit breaker proposed by the present invention;

[0031] Figure 8 This is a schematic diagram of the appearance structure of an elastic C-shaped plate in an efficient troubleshooting intelligent circuit breaker proposed by the present invention.

[0032] In the figure: 1, circuit breaker housing; 2, connecting plate; 201, static contact; 202, moving contact; 3, maintenance box; 4, rectangular hole; 5, rectangular block; 6, lead screw; 7, cylindrical grinding disc; 8, conical block; 9, through hole; 10, brush plate; 11, first connecting rod; 12, round tube block; 13, nut; 14, second connecting rod; 15, slot; 16, block; 17, slot; 18, magnetic spring; 19, wedge block; 20, cavity; 21, micro motor; 22, rotating shaft; 23, first bevel gear; 24, second bevel gear; 25, Spline shaft; 26, first conical wheel; 27, second conical wheel; 28, tension spring; 29, concave block; 30, rotating rod; 31, friction wheel; 32, cam; 33, circular plate; 34, guide column; 35, guide rod; 36, telescopic spring; 37, piston; 38, one-way air inlet pipe; 39, one-way air outlet pipe; 40, dust suction pipe; 41, wedge plate; 42, transfer conductive sheet; 43, elastic wedge plate; 44, conductive wire; 45, temperature sensor; 46, rubber bladder; 47, electric push rod; 48, support plate; 49, box body. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Reference Figure 1 - Figure 8A high-efficiency troubleshooting intelligent circuit breaker comprises a circuit breaker housing 1, an electric push rod 47 is embedded in the inner wall of the circuit breaker housing 1, a movable end of the electric push rod 47 is fixedly connected to a maintenance box 3, a rectangular hole 4 is provided on the side wall of the maintenance box 3, a rectangular block 5 is slidably connected to the inner wall of the rectangular hole 4, a lead screw 6 is rotatably connected to the top wall of the rectangular block 5, a cylindrical grinding disc 7 is connected to the top wall of the rectangular block 5 through a locking component, the side wall of the cylindrical grinding disc 7 is a continuously raised grinding portion, a plurality of through holes 9 are evenly distributed on the inner wall of the cylindrical grinding disc 7, a rubber bladder 46 is fixedly installed on the inner wall of each through hole 9, a pressure relief valve is installed on the inner wall of the rubber bladder 46, the rubber bladder 46 is made of rubber material, a brush plate 10 is slidably connected to the inner wall of the through hole 9, and the inner wall of the maintenance box 3 is slidably connected to the inner wall of the maintenance box 3. A wedge block 19 is connected, and a cavity 20 is opened on the inner wall of the wedge block 19. After the lead screw 6 passes through the wedge block 19, it is fixedly connected to the second conical wheel 27. The inner wall of the cavity 20 is rotatably connected to the first conical wheel 26. The wedge block 19 drives the first conical wheel 26 to move synchronously horizontally, so that the first conical wheel 26 is always meshed with the second conical wheel 27. A support plate 48 is fixedly connected to the inner wall of the maintenance box 3. A spline shaft 25 is rotatably connected to the side wall of the support plate 48. The spline shaft 25 passes through the wedge block 19 and is keyed to the first conical wheel 26. The other end of the spline shaft 25 is fixedly connected to the second bevel gear 24. A micro motor 21 is fixed to the inner wall of the maintenance box 3. The output end of the micro motor 21 is fixedly connected to the rotating shaft 22, and the side wall of the rotating shaft 22 is fixedly connected to the cam 32.

[0035] A conical block 8 is fixedly connected to one end of the cylindrical grinding disc 7, a first bevel gear 23 is fixedly connected to the side wall of the rotating shaft 22, a concave block 29 is fixedly connected to the side wall of the wedge block 19, a rotating rod 30 is rotatably connected to the inner wall of the concave block 29, a friction wheel 31 is fixedly connected to the side wall of the rotating rod 30, the surface of the friction wheel 31 is rough and the friction force is large, a tension spring 28 is fixedly connected to the side wall of the support plate 48, and the other end of the tension spring 28 is fixedly connected to the side wall of the wedge block 19.

[0036] The locking member includes a slot 17 (such as Figure 5 As shown), the inner wall of the slot 17 is fixedly connected with a magnetic spring 18, and the magnetic spring 18 is a prior art. After the magnetic spring 18 is energized, due to electromagnetic induction, the magnetic spring 18 interacts with the current in the external magnetic field to generate different pulling forces to control the tensile deformation and movement state of the magnetic spring 18, that is, the magnetic spring 18 can shrink when energized. The other end of the magnetic spring 18 is fixedly connected with a block 16, and the block 16 is slidably connected inside the slot 17. A slot 15 is provided on the bottom wall of the cylindrical grinding disc 7, and the block 16 and the slot 15 are plug-connected.

[0037] A circular tube block 12 is fixedly connected to the inner wall of the cylindrical grinding disc 7. A plurality of first connecting rods 11 are rotatably connected to the side wall of the circular tube block 12 in a uniform distribution. The other end of each first connecting rod 11 is rotatably connected to the side wall of the adjacent brush plate 10. A nut 13 is threadedly connected to the side wall of the lead screw 6. A plurality of second connecting rods 14 are rotatably connected to the side wall of the nut 13 in a uniform distribution. The other end of each second connecting rod 14 is rotatably connected to the side wall of the adjacent brush plate 10.

[0038] As Figure 4 shown, one end of a rotating rod 30 is fixedly connected to a circular plate 33. A guiding column 34 is fixedly connected to the side wall of the circular plate 33. The guiding column 34 is eccentrically arranged on the circular plate 33. A guiding rod 35 is rotatably connected to the side wall of the guiding column 34. A box body 49 is fixedly connected to the side wall of the concave block 29. A piston 37 is hermetically and slidably connected inside the box body 49. The end of the guiding rod 35 far from the guiding column 34 is rotatably connected to the side wall of the piston 37.

[0039] A dust suction pipe 40 is embedded and installed on the side wall of the brush plate 10 (as Figure 6 shown). The dust suction pipe 40 is arranged in a dislocation manner with the bristles of the brush plate 10. A plurality of one-way intake pipes 38 and one one-way outlet pipe 39 are fixedly connected through the inner wall of the box body 49.

[0040] The end of the one-way intake pipe 38 far from the box body 49 is fixedly communicated with a corresponding dust suction pipe 40. The end of the one-way outlet pipe 39 far from the box body 49 is fixedly communicated with an external dust collection bag. The one-way intake pipe 38 only allows the medium to enter the inside of the box body 49 from the dust suction pipe 40, and the one-way outlet pipe 39 only allows the medium inside the box body 49 to be squeezed into the external dust collection bag.

[0041] As Figure 1 and Figure 7 shown, a wedge-shaped plate 41 is slidably connected through the inner side wall of the maintenance box 3. The top wall of the wedge-shaped plate 41 is fixedly connected to an elastic U-shaped plate 43 through a connecting plate 2.转接导电片42 are symmetrically installed on the inner side wall of the elastic U-shaped plate 43.

[0042] Two转接导电片42 are electrically connected through a conducting wire 44. A telescopic spring 36 is sleeved on the side wall of the connecting plate 2. One end of the telescopic spring 36 is fixedly connected to the side wall of the connecting plate 2, and the other end of the telescopic spring 36 is fixedly connected to the side wall of the maintenance box 3. The wedge-shaped plate 41 abuts and slides against the wedge-shaped block 19.

[0043] A temperature sensor 45 is installed on the inner wall of the maintenance box 3. The temperature sensor 45 is a prior art and will not be elaborated here. The temperature sensor 45 is electrically connected to an electric push rod 47 and a micro motor 21 through a controller, achieving an intelligent control effect.

[0044] In the present invention, a static contact 201 and a moving contact 202 are provided inside the circuit breaker housing 1. The static contact 201 and the moving contact 202 are in contact with each other to realize the passage of the power supply line. This is the prior art and will not be described in detail here.

[0045] When the temperature inside the circuit breaker housing 1 continues to rise and approaches an abnormally high temperature, the temperature sensor 45 cuts off the power supply line through the controller, and causes the movable end of the electric push rod 47 to drive the maintenance box 3 to move a certain distance. The maintenance box 3 then drives the conical block 8 to insert into the gap between the static contact 201 and the moving contact 202, and then separates the static contact 201 and the moving contact 202 until the side wall of the cylindrical grinding plate 7 and the contact protrusions of the side walls of the static contact 201 and the moving contact 202 are in contact. Then, the micro motor 21 is turned on for a period of time, and the output end of the micro motor 21 drives the rotating shaft 22 to rotate, and the rotating shaft 22 drives the first bevel gear 23 to rotate, and the first bevel gear 23 drives the spline shaft 25 to rotate through the second bevel gear 24 meshing with it, and the spline shaft 25 drives the first conical wheel 26 keyed to it to rotate, and the first conical wheel 26 drives the lead screw 6 to rotate through the second conical wheel 27, and the nut 13 threadedly connected to the side wall of the lead screw 6 moves upward for a distance, and under the cooperation of multiple first connecting rods 11, multiple second connecting rods 14 rotatably connected to the side wall of the nut 13 will drive the brush plate 10 to move outward for a distance inside the through hole 9. In this process, the brush plate 10 will squeeze the rubber bag 46 outward under the action of the extrusion force to produce deformation, thereby reducing the pressure damage to the rubber bag 46 and facilitating the subsequent contraction of the rubber bag 46.

[0046] Then, the magnetic spring 18 is energized, and the magnetic spring 18 contracts after being energized, driving the block 16 away from the slot 15, and then the micro motor 21 is turned on to make the screw 6 continue to rotate. At this time, since the block 16 has been separated from the slot 15 and the brush plate 10 cannot continue to move outward, the screw 6 will drive the cylindrical grinding disc 7 to rotate synchronously through the nut 13, the second connecting rod 14 and the brush plate 10. Since the brush plate 10 extends part of the plate body outward from each through hole 9 and squeezes and deforms the rubber capsule 46 outward, when the brush plate 10 and the static contact 201 and the moving contact 202 are in contact, they will squeeze the rubber capsule 46 together, and the rubber capsule 46 The rubber bladder 46 is filled with a cleaning agent for cleaning the oil stains on the surfaces of the moving contact 202 and the static contact 201. When the rubber bladder 46 is subjected to a large extrusion pressure, the cleaning agent filled inside it will overflow from the pressure relief valve of the rubber bladder 46 and be adsorbed on the side of the brush plate 10. The rubber bladder 46 shrinks rapidly under the action of the rubber elastic force and will not interfere with the movement of the brush plate 10. Then the brush plate 10 will first brush and clean the contact protrusions on the static contact 201 and the moving contact 202, and remove the oil stains adhered to the static contact 201 and the moving contact 202. At this time, the high temperature abnormal fault caused by the oil stains adhered to the static contact 201 and the moving contact 202 can be eliminated.

[0047] And during the rotation of the rotating shaft 22, the rotating shaft 22 will also drive the cam 32 to rotate synchronously. The cam 32 is in contact with the friction wheel 31, and the surfaces of the cam 32 and the friction wheel 31 are rough with a large frictional force. Then, during the rotation of the cam 32, on the one hand, it can drive the concave block 29 and the wedge block 19 to reciprocate horizontally synchronously through the friction wheel 31 and the rotating rod 30, so that the lead screw 6 drives the multiple brush plates 10 on the cylindrical grinding disc 7. During the rotation of the cylindrical grinding disc 7, the multiple brush plates 10 on the cylindrical grinding disc 7 will also reciprocate horizontally. Furthermore, the multiple rotating brush plates 10 perform horizontal reciprocating movement cleaning on the oil stains on the surfaces of the static contact 201 and the moving contact 202. On the other hand, the cam 32 can also drive the friction wheel 31 and the rotating rod 30 to rotate. When the rotating rod 30 rotates, the rotating rod 30 drives the circular plate 33 fixedly connected to one end thereof to rotate. The guiding column 34 is eccentrically arranged on the circular plate 33, so that the circular plate 33 drives the guiding rod 35 to move through the guiding column 34. The guiding rod 35 drives the piston 37 fixedly connected thereto to slide sealingly and reciprocally inside the box body 49. Then, the piston 37 will inhale gas from the multiple dust suction pipes 40 through the one-way air inlet pipe 38 and discharge it outward through the one-way air outlet pipe 39. At this time, during the process of pumping gas through the dust suction pipes 40, the air circulation around the static contact 201 and the moving contact 202 will be accelerated, thereby accelerating the evaporation of the cleaning agent water stains adhering to the surfaces of the static contact 201 and the moving contact 202 and improving the efficiency of troubleshooting for the static contact 201 and the moving contact 202.

[0048] During the process of the wedge block 19 moving leftward to the end of its stroke (as Figure 1 shown), at this time, the wedge block 19 will push the wedge plate 41 to slide upward vertically for a certain distance. Then, the wedge plate 41 will drive the elastic U-shaped plate 43 to move upward for a certain distance through the connecting plate 2. The elastic U-shaped plate 43 is made of an elastic material, the tops of its two sides are inclined, and its two side walls form an elastic clamping force after deformation (as Figure 8 shown). After the elastic U-shaped plate 43 moves upward for a certain distance, its inner side walls will be in contact with the static contact 201 and the moving contact 202 respectively. Under the action of the elastic clamping force after deformation, the elastic U-shaped plate 43 clamps the static contact 201 and the moving contact 202 through the adapter conductive sheet 42. The elastic U-shaped plate 43 will not be separated from the static contact 201 and the moving contact 202. Then, at this time, the two adapter conductive sheets 42 and the conductive wire 44 on the elastic U-shaped plate 43 will replace the static contact 201 and the moving contact 202 to realize the closing of this power supply circuit. After the cleaning agent water stains on the surfaces of the static contact 201 and the moving contact 202 are completely evaporated, the power supply to this power supply circuit can be carried out at this time, avoiding long-term power-off maintenance to troubleshoot.

[0049] Subsequently, when eliminating the high temperature fault caused by the oxides generated on the static contact 201 and the moving contact 202, the magnetic spring 18 is powered off, so that the block 16 is stuck in the slot 15, and then the output end of the micro motor 21 is rotated in the opposite direction, so that the lead screw 6 rotates in the opposite direction. At this time, the nut 13 will drive the multiple second connecting rods 14 to move downward along the axis of the lead screw 6. With the cooperation of the multiple first connecting rods 11, the multiple brush plates 10 enter the corresponding through holes 9. At this time, the grinding part on the side of the cylindrical grinding disc 7 will contact the static contact 201 and the moving contact 202. Then Then, the magnetic spring 18 is energized to disengage the block 16 and the slot 15 from the plug-in state, and the nut 13 drops to the limit. Then, the lead screw 6 will drive the cylindrical grinding disc 7 to rotate rapidly. The grinding portion on the side of the cylindrical grinding disc 7 will perform horizontal reciprocating grinding and removing the oxides on the surfaces of the static contact 201 and the moving contact 202 during the self-rotation process. At this time, the rotating rod 30 will draw the dust generated by the grinding oxide layer from the inside of the dust suction pipe 40 through the circular plate 33, the guide rod 35 and the piston 37 during the rotation process, thereby completing the discharge and collection of the oxide dust.

[0050] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An efficient troubleshooting intelligent circuit breaker, comprising a circuit breaker housing (1), characterized in that: An electric push rod (47) is embedded and installed on the inner wall of the circuit breaker housing (1); the movable end of the electric push rod (47) is fixedly connected to the maintenance box (3); a rectangular hole (4) is provided on the side wall of the maintenance box (3); a rectangular block (5) is slidably connected to the inner wall of the rectangular hole (4); a lead screw (6) is rotatably connected to the top wall of the rectangular block (5); the top wall of the rectangular block (5) is connected to a cylindrical grinding disc (7) via a locking component; a plurality of through holes (9) are evenly distributed on the inner wall of the cylindrical grinding disc (7); each of the through holes (9) is provided on the inner wall of the cylindrical grinding disc (7); The inner wall of the through hole (9) is fixedly mounted with a rubber bladder (46), the inner wall of the through hole (9) is slidably connected with a brush plate (10), the inner wall of the inspection box (3) is slidably connected with a wedge block (19), the inner wall of the wedge block (19) is provided with a cavity (20), the lead screw (6) passes through the wedge block (19) and is fixedly connected with a second conical wheel (27), the inner wall of the cavity (20) is rotatably connected with a first conical wheel (26), the inner wall of the inspection box (3) is fixedly connected with a support plate (48), the support plate (48) A spline shaft (25) is rotatably connected to the side wall, the spline shaft (25) passes through the wedge block (19) and is keyed to the first conical wheel (26), the other end of the spline shaft (25) is fixedly connected to the second bevel gear (24), a micro motor (21) is fixedly connected to the inner wall of the maintenance box (3), the output end of the micro motor (21) is fixedly connected to the cam (32) via a rotating shaft (22), one end of the cylindrical grinding disc (7) is fixedly connected to the conical block (8), and the side wall of the rotating shaft (22) is fixedly connected to the first bevel gear The side wall of the wedge block (19) is fixedly connected to a concave block (29), the inner wall of the concave block (29) is penetrated by a rotating rod (30) for rotation connection, the side wall of the rotating rod (30) is fixedly connected to a friction wheel (31), the side wall of the support plate (48) is elastically connected to the side wall of the wedge block (19) through a tension spring (28), and a temperature sensor (45) is installed on the inner wall of the maintenance box (3), and the temperature sensor (45) is electrically connected to the electric push rod (47) and the micro motor (21) through a controller.

2. The high-efficiency troubleshooting intelligent circuit breaker according to claim 1 is characterized in that: The locking component comprises a slot (17) formed on the top wall of the rectangular block (5); a magnetic spring (18) is fixedly connected to the inner wall of the slot (17); a block (16) is fixedly connected to the other end of the magnetic spring (18); a slot (15) is formed on the bottom wall of the cylindrical grinding disc (7); and the block (16) and the slot (15) are plug-connected.

3. The high-efficiency troubleshooting intelligent circuit breaker according to claim 2 is characterized in that: The inner wall of the cylindrical grinding disc (7) is fixedly connected to a circular tube block (12); the side wall of the circular tube block (12) is evenly rotatably connected to a plurality of first connecting rods (11); the other end of each of the first connecting rods (11) is rotatably connected to the side wall of an adjacent brush plate (10); the side wall of the lead screw (6) is threadedly connected to a nut (13); the side wall of the nut (13) is evenly rotatably connected to a plurality of second connecting rods (14); the other end of each of the second connecting rods (14) is rotatably connected to the side wall of an adjacent brush plate (10).

4. The high-efficiency troubleshooting intelligent circuit breaker according to claim 3 is characterized in that: One end of the rotating rod (30) is fixedly connected with a circular plate (33). A guiding column (34) is fixedly connected to the side wall of the circular plate (33). A guiding rod (35) is rotatably connected to the side wall of the guiding column (34). A box body (49) is fixedly connected to the side wall of the concave block (29). A piston (37) is hermetically and slidably connected inside the box body (49). One end of the guiding rod (35) away from the guiding column (34) is rotatably connected to the side wall of the piston (37).

5. The high-efficiency troubleshooting intelligent circuit breaker according to claim 4 is characterized in that: A dust suction pipe (40) is embedded and installed on the side wall of the brush plate (10). A plurality of one-way intake pipes (38) and one one-way outlet pipe (39) are fixedly connected through the inner wall of the box body (49).

6. The high-efficiency troubleshooting intelligent circuit breaker according to claim 5, characterized in that: One end of the one-way intake pipe (38) away from the box body (49) is fixedly communicated with a corresponding dust suction pipe (40). One end of the one-way outlet pipe (39) away from the box body (49) is fixedly communicated with an external dust collection bag.

7. The efficient troubleshooting intelligent circuit breaker according to claim 1 is characterized in that: A wedge-shaped plate (41) is slidably connected through the inner side wall of the maintenance box (3). An elastic U-shaped plate (43) is fixedly connected to the top wall of the wedge-shaped plate (41) through a connecting plate (2). Connecting conductive sheets (42) are symmetrically installed on the inner side wall of the elastic U-shaped plate (43).

8. The high-efficiency troubleshooting intelligent circuit breaker according to claim 7, characterized in that: The two connecting conductive sheets (42) are electrically connected through a conductive wire (44). A telescopic spring (36) is sleeved and fixedly connected to the side wall of the connecting plate (2). The other end of the telescopic spring (36) is fixedly connected to the side wall of the maintenance box (3). The wedge-shaped plate (41) abuts against and slides with the wedge-shaped block (19).

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