CN110970881B - Safe circuit cutting equipment - Google Patents
Safe circuit cutting equipment Download PDFInfo
- Publication number
- CN110970881B CN110970881B CN202010006521.3A CN202010006521A CN110970881B CN 110970881 B CN110970881 B CN 110970881B CN 202010006521 A CN202010006521 A CN 202010006521A CN 110970881 B CN110970881 B CN 110970881B
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- vacuum cavity
- power supply
- voltage power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Emergency Protection Circuit Devices (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Protection Of Static Devices (AREA)
Abstract
The invention discloses a safe circuit cutting device, which comprises a box body, wherein a constant voltage power supply is fixedly arranged in the box body, the left end and the right end of the constant voltage power supply are electrically connected with leads, the leads are connected with an external electric appliance, the right end of the constant voltage power supply is a positive electrode, the lead at the left side is electrically connected with an ammeter, and the ammeter monitors the current passing through the leads and the constant voltage power supply.
Description
Technical Field
The invention relates to the field of circuit protection, in particular to a safe circuit cutting-off device.
Background
The circuit breaker is a switch device which can close, bear and break the current under the condition of a normal circuit and can close, bear and break the current under the condition of an abnormal circuit at a specified time.
Disclosure of Invention
In order to solve the problems, the present embodiment designs a safe circuit cutting device, which comprises a box body, wherein a constant voltage power supply is fixedly arranged in the box body, the left end and the right end of the constant voltage power supply are electrically connected with wires, the wires are connected with an external electrical appliance, the right end of the constant voltage power supply is a positive electrode, the left wire is electrically connected with an ammeter, the ammeter is provided with a critical value, the critical value supports against the maximum overload current of the constant voltage power supply, the ammeter monitors the current passing through the wires and the constant voltage power supply, a vacuum cavity is arranged in the box body, a cutting component is arranged in the vacuum cavity and is used for cutting off the left wire and breaking a circuit, an air inlet component is arranged in the inner wall on the upper side of the vacuum cavity, the cutting component cuts off the left wire and simultaneously fills protective gas into the vacuum cavity, avoid the cutting-off assembly cut off the left electric spark when the wire, the constant voltage power supply right side is equipped with keeps apart the chamber, keep apart the intracavity and be equipped with adjusting part, area of contact increase and make the resistance increase current reduction in the circuit between the rotating resistance in the adjusting part and the fixed resistance, the constant voltage power supply upside is equipped with the transmission chamber, the rotation is equipped with sector gear in the transmission chamber, sector gear lower extreme links firmly the drive shaft, built-in motor has set firmly in the transmission chamber downside inner wall, drive shaft lower extreme power connect in the built-in motor, the bilateral symmetry is equipped with symmetrical gear in the transmission chamber, symmetrical gear mesh in sector gear mutually, the one end that symmetrical gear keeps away from sector gear is linked firmly the transmission shaft, the vacuum chamber with keep apart the intracavity upside inner wall in the intercommunication be equipped with the race, left the race internal rotation is equipped with driving pulley, the transmission shaft on the left side is fixedly connected with the driving belt wheel, a transmission belt is connected between the driving belt wheel and the adjusting component, the left end of the transmission shaft on the left side is connected with the air inlet component, a small belt wheel is rotatably arranged in the belt groove on the right side, the small belt wheel is fixedly connected with the transmission shaft on the right side, a deceleration strip is connected between the small belt wheel and the adjusting component, the built-in motor is started, the sector gear is driven to rotate by the driving shaft, the symmetric gear on the right side is driven to rotate firstly, the small belt wheel is driven to rotate by the transmission shaft on the right side, the adjusting component is driven by the deceleration strip and the resistance in a circuit is increased, after the sector gear is disengaged from the symmetric gear on the right side, the sector gear is engaged with the symmetric gear on the left side, and, and then through the left the transmission shaft drive the subassembly that admits air to the vacuum chamber is filled into the protection gas, simultaneously the transmission shaft drives driving pulley rotates, and then passes through the drive belt drive cut off the subassembly and cut off the left the wire, the box upper end has linked firmly the siren, siren electric connection in cut off the subassembly, it cuts off the left to cut off the subassembly during the wire the siren sends out the police dispatch newspaper for remind the people to notice the circuit and transship. Advantageously, the adjusting assembly comprises a large belt wheel rotatably disposed in the isolating cavity, the lower end of the speed reducing belt is connected to the large belt wheel, a supporting shaft is fixedly connected in the large belt wheel, the left end of the supporting shaft is rotatably connected to the fixed resistor, the left end of the supporting shaft is fixedly connected to the rotating resistor, the rotating resistor is in contact with the fixed resistor, the rotating resistor is connected to the wire on the right side of the fixed resistor, initially, the contact area between the rotating resistor and the fixed resistor is small, the resistance value of the access circuit is small, the built-in motor is started, and the sector gear is driven to rotate through the driving shaft, so that the symmetrical gear on the right side is driven to rotate, and the small belt wheel is driven to rotate through the transmission shaft on the right side, so that the large belt wheel is driven to rotate through the speed reducing belt, and the rotating, and then increase rotating resistance with area of contact between the fixed resistance, and then increase the resistance of access circuit, work as sector gear and right side when the symmetrical gear breaks away from the meshing, rotating resistance with area of contact is the biggest between the fixed resistance, little band pulley with for speed reduction between the big band pulley, avoid the rotating resistance rotational speed is too fast for the current variation damages at the excessive speed in the circuit constant voltage power supply, rotating resistance's rotation range is within the round, and then makes rotating resistance with fixed resistance remains the contact throughout.
Advantageously, the cutting assembly comprises a driven pulley rotatably disposed in the vacuum chamber, the lower end of the driving belt is connected to the driven pulley, a sliding shaft is splined in the driven pulley, a moving circular plate and a connecting circular plate are rotatably disposed on the left side of the driven pulley, the moving circular plate is fixedly connected to the sliding shaft, the connecting circular plate is splined to the sliding shaft, a sliding plate is rotatably connected to the left end of the sliding shaft, a clamping groove with a left opening is formed in the connecting circular plate, a compression spring is fixedly connected between the left end of the sliding plate and the inner wall of the left side of the vacuum chamber, an arc-shaped groove is formed in the moving circular plate and the connecting circular plate in a left-right through manner, a connector is slidably disposed in the arc-shaped groove, the connectors on two sides are in contact connection with the conductors on the left side, the built, thereby driving the symmetrical gear on the left side to rotate, further driving the driving pulley to rotate through the transmission shaft on the left side, further driving the driven pulley to rotate through the transmission belt, further driving the movable circular plate and the connecting circular plate to rotate through the sliding shaft, at the same time, the interface slides along the arc-shaped groove and keeps the lead on the left side connected, when the sliding plate is right opposite to the clamping groove, the sliding plate is pushed to slide into the clamping groove and clamp the connecting circular plate under the elastic force of the compression spring, at the same time, the sliding plate pushes the sliding shaft to slide rightwards, further driving the movable circular plate to slide rightwards, further separating the interfaces on both sides from connection and cutting off the lead on the left side, the switch is fixedly connected on the inner wall on the right side of the vacuum cavity, the alarm is electrically connected to the switch, the sliding shaft slides rightwards, thereby activating the alarm.
Beneficially, the air inlet assembly comprises an air storage cavity arranged in the inner wall of the upper side of the vacuum cavity, protective air is stored in the air storage cavity, a driving bevel gear is rotationally arranged in the air storage cavity and fixedly connected to the transmission shaft on the left side, a driven bevel gear is arranged at the lower end of the driving bevel gear in a meshed manner, a screw rod is fixedly connected to the lower end of the driven bevel gear, a sliding piston is arranged in the air storage cavity in a sliding manner and connected to the screw rod in a threaded manner, an air inlet hole with a leftward opening is formed in the inner wall of the left side of the air storage cavity in a communicated manner, an air outlet hole with a leftward opening is formed in the inner wall of the left side of the vacuum cavity in a communicated manner, a control valve is fixedly arranged in the air inlet hole and the air outlet hole, when the air inlet hole and the air outlet hole are communicated with an, the transmission shaft on the left side drives the driving bevel gear to rotate, so that the driven bevel gear is driven to rotate, the screw rod drives the sliding piston to descend, protective gas in the gas storage cavity is filled into the vacuum cavity through the one-way valve, an external air pump is connected with the gas inlet hole and the gas outlet hole, the gas in the vacuum cavity can be pumped out, and new protective gas can be supplied into the gas storage cavity.
The invention has the beneficial effects that: the invention increases the resistance in the circuit and reduces the circuit current before the circuit reaches the maximum load, thereby protecting the power supply and the electric appliances connected on the circuit, simultaneously reducing the situation of electric sparks when the interfaces are disconnected, and firstly charging the protective gas before the two interfaces are disconnected, thereby protecting the elements in the vacuum cavity.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic view showing an overall structure of a safety circuit breaking apparatus according to the present invention;
FIG. 2 is an enlarged schematic view of "A" of FIG. 1;
FIG. 3 is a schematic view of FIG. 1 taken in the direction "B";
fig. 4 is a schematic view of fig. 2 in the direction "C".
Detailed Description
The invention will now be described in detail with reference to fig. 1-4, for ease of description, the orientations described below will now be defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
The invention relates to a safe circuit cutting device, which comprises a box body 11, wherein a constant voltage power supply 13 is fixedly arranged in the box body 11, the left end and the right end of the constant voltage power supply 13 are electrically connected with a lead 17, the lead 17 is connected with an external electric appliance, the right end of the constant voltage power supply 13 is provided with an anode, the lead 17 on the left side is electrically connected with an ammeter 34, the ammeter 34 is provided with a critical value, the critical value is resisted against the maximum overload current of the constant voltage power supply 13, the ammeter 34 monitors the current passing through the lead 17 and the constant voltage power supply 13, a vacuum cavity 12 is arranged in the box body 11, a cutting component 100 is arranged in the vacuum cavity 12, the cutting component 100 is used for cutting off the lead 17 on the left side and cutting off the circuit, an air inlet component 102 is arranged in the inner wall of the upper side of the vacuum cavity 12, the air inlet component 102 is used, avoid cutting off subassembly 100 and cutting off the left electric spark produces during the wire 17, constant voltage power supply 13 right side is equipped with isolation cavity 20, be equipped with adjusting part 101 in the isolation cavity 20, area of contact increase and make the resistance increase current in the circuit reduce between rotating resistor 15 in the adjusting part 101 and the fixed resistor 16, constant voltage power supply 13 upside is equipped with transmission cavity 49, the internal rotation of transmission cavity 49 is equipped with sector gear 24, sector gear 24 lower extreme links firmly drive shaft 25, internal motor 14 that has set firmly in transmission cavity 49 downside inner wall, drive shaft 25 lower extreme power connect in internal motor 14, bilateral symmetry's in transmission cavity 49 be equipped with symmetrical gear 26, symmetrical gear 26 meshes in sector gear 24 mutually, symmetrical gear 26 keeps away from sector gear 24 one end has linked firmly drive shaft 27, vacuum cavity 12 with the inboard wall intercommunication that is equipped with strap groove 23 in isolation cavity 20 upside inner wall, a driving pulley 28 is rotatably arranged in the belt groove 23 on the left side, the transmission shaft 27 on the left side is fixedly connected to the driving pulley 28, a transmission belt 44 is connected between the driving pulley 28 and the adjusting component 101, the left end of the transmission shaft 27 on the left side is connected to the air inlet component 102, a small pulley 22 is rotatably arranged in the belt groove 23 on the right side, the small pulley 22 is fixedly connected to the transmission shaft 27 on the right side, a speed reducing belt 21 is connected between the small pulley 22 and the adjusting component 101, the built-in motor 14 is started, the driving shaft 25 drives the sector gear 24 to rotate, the symmetrical gear 26 on the right side is driven to rotate, the transmission shaft 27 on the right side drives the small pulley 22 to rotate, the adjusting component 101 is driven by the speed reducing belt 21, the resistance in the circuit is increased, and after the sector gear 24 is disengaged from the symmetrical gear 26 on the, the sector gear 24 is meshed with the symmetrical gear 26 on the left side, at the moment, the sector gear 24 drives the symmetrical gear 26 to rotate, the air inlet assembly 102 is driven by the transmission shaft 27 on the left side to fill protective air into the vacuum cavity 12, meanwhile, the transmission shaft 27 drives the driving belt pulley 28 to rotate, the cutting assembly 100 is driven by the transmission belt 44 to cut off the left side of the lead 17, the upper end of the box body 11 is fixedly connected with the alarm 30, the alarm 30 is electrically connected with the cutting assembly 100, and the alarm 30 gives an alarm when the cutting assembly 100 cuts off the left side of the lead 17, so as to remind people of circuit overload.
According to the embodiment, the adjusting assembly 101 is described in detail below, the adjusting assembly 101 includes a large pulley 18 rotatably disposed in the isolating cavity 20, the lower end of the speed reducing belt 21 is connected to the large pulley 18, a supporting shaft 19 is fixedly connected to the large pulley 18, the left end of the supporting shaft 19 is rotatably connected to the fixed resistor 16, the left end of the supporting shaft 19 is fixedly connected to the rotating resistor 15, the rotating resistor 15 is in contact with the fixed resistor 16, the rotating resistor 15 and the fixed resistor 16 are connected to the right wire 17, initially, the contact area between the rotating resistor 15 and the fixed resistor 16 is small, the resistance value of the access circuit is small, the built-in motor 14 is started, the sector gear 24 is further rotated by the driving shaft 25, the symmetric gear 26 is further rotated, and the small pulley 22 is further rotated by the driving shaft 27 on the right side, and then drive the big band pulley 18 through the deceleration strip 21 and rotate, and then drive the resistance 15 through the back shaft 19 and rotate, and then increase the area of contact between the resistance 15 and the fixed resistance 16, and then increase the resistance of inserting the circuit, when the sector gear 24 breaks away from the meshing with the symmetrical gear 26 on right side, the area of contact between the resistance 15 and the fixed resistance 16 is the biggest, for speed reduction transmission between the small band pulley 22 and the big band pulley 18, avoid the resistance 15 rotational speed is too fast, make the current change in the circuit too fast damage the constant voltage power supply 13, the rotation range of resistance 15 is within one round, and then make the resistance 15 and the fixed resistance 16 keep in contact all the time.
According to an embodiment, the cutting assembly 100 is described in detail below, the cutting assembly 100 includes a driven pulley 38 rotatably disposed in the vacuum chamber 12, the lower end of the transmission belt 44 is connected to the driven pulley 38, a sliding shaft 39 is splined in the driven pulley 38, a moving circular plate 41 and a connecting circular plate 42 are rotatably disposed on the left side of the driven pulley 38, the moving circular plate 41 is fixedly connected to the sliding shaft 39, the connecting circular plate 42 is splined to the sliding shaft 39, a sliding plate 35 is rotatably connected to the left end of the sliding shaft 39, a slot 52 with a leftward opening is disposed in the connecting circular plate 42, a compression spring 51 is fixedly connected between the left end of the sliding plate 35 and the inner wall of the left side of the vacuum chamber 12, an arc-shaped slot 36 is disposed in the moving circular plate 41 and the connecting circular plate 42 and penetrates left and right, a connector 37 is slidably disposed, the connectors 37 on both sides are connected in contact, the connectors 37 are connected to the lead 17 on the left side, the built-in motor 14 is started, the drive shaft 25 drives the sector gear 24 to rotate, the symmetric gear 26 on the left side is further driven to rotate, the drive shaft 27 on the left side drives the drive pulley 28 to rotate, the drive belt 44 drives the driven pulley 38 to rotate, the sliding shaft 39 drives the movable circular plate 41 and the connecting circular plate 42 to rotate, the connectors 37 slide along the arc-shaped groove 36 and keep the lead 17 on the left side connected, when the sliding plate 35 is facing the clamping groove 52, the sliding plate 35 is pushed by the elastic force of the compression spring 51 to slide into the clamping groove 52 and clamp the connecting circular plate 42, and the sliding plate 35 pushes the sliding shaft 39 to slide to the right, and then drive the removal plectane 41 slides to the right, and then makes the interface 37 of both sides break away from the connection and cut off the left wire 17, linked firmly switch 40 on the inner wall of vacuum cavity 12 right side, siren 30 electric connection in switch 40, slide shaft 39 slides to the right and starts switch 40, and then starts siren 30.
According to the embodiment, the air intake assembly 102 is described in detail below, the air intake assembly 102 includes an air storage cavity 31 disposed in an upper inner wall of the vacuum cavity 12, the air storage cavity 31 stores shielding gas, a driving bevel gear 29 is rotatably disposed in the air storage cavity 31, the driving bevel gear 29 is fixedly connected to the transmission shaft 27 on the left side, a driven bevel gear 32 is disposed at a lower end of the driving bevel gear 29 in a meshed manner, a screw 46 is fixedly connected to a lower end of the driven bevel gear 32, a sliding piston 33 is slidably disposed in the air storage cavity 31, the sliding piston 33 is threadedly connected to the screw 46, an air intake 47 with a left opening is disposed in the inner wall on the left side of the air storage cavity 31 in a communicating manner, an air outlet 50 with a left opening is disposed in the inner wall on the left side of the vacuum cavity 12 in a communicating manner, a control valve 48 is disposed in the air intake 47 and the air outlet, the control valve 48 is opened, the check valve 45 with an opening facing the vacuum chamber 12 is fixedly arranged between the gas storage chamber 31 and the vacuum chamber 12, the transmission shaft 27 on the left side drives the driving bevel gear 29 to rotate, and further drives the driven bevel gear 32 to rotate, so that the sliding piston 33 is driven to descend by the screw rod 46, the protective gas in the gas storage chamber 31 is filled into the vacuum chamber 12 through the check valve 45, an external air pump is connected with the air inlet hole 47 and the air outlet hole 50, the gas in the vacuum chamber 12 can be pumped out, and new protective gas can be supplemented into the gas storage chamber 31.
The following describes in detail the steps of using a safety circuit breaking device according to the present disclosure with reference to fig. 1 to 4:
initially, the sliding piston 33 is located at the upper limit position, the sliding plate 35 is located outside the slot 52, the compression spring 51 is in a compressed state, the connectors 37 on both sides are connected, the sliding shaft 39 is not in contact with the switch 40, the sector gear 24 is just meshed with the symmetrical gear 26 on the right side, and the direct contact area between the rotating resistor 15 and the fixed resistor 16 is the smallest.
In use, the ammeter 34 monitors the current through the constant voltage power supply 13 and the lead 17, and when the current through the lead 17 and the constant voltage power supply 13 reaches a threshold value of the ammeter 34, the built-in motor 14 is started, the sector gear 24 is driven to rotate by the driving shaft 25, and the symmetrical gear 26 on the right side is driven to rotate, the small belt wheel 22 is driven to rotate through the right transmission shaft 27, the large belt wheel 18 is driven to rotate through the speed reducing belt 21, the rotating resistor 15 is driven to rotate by the supporting shaft 19, so that the contact area between the rotating resistor 15 and the fixed resistor 16 is increased, thereby increasing the resistance in the access circuit, and further decreasing the current passing through the lead 17 and the constant voltage power supply 13, when the sector gear 24 is disengaged from the symmetrical gear 26 on the right, the contact area between the rotating resistor 15 and the fixed resistor 16 is maximized, and the current passing through the constant voltage power supply 13 and the lead 17 is minimized.
The sector gear 24 continues to rotate and drives the left symmetrical gear 26 to rotate, and further drives the driving bevel gear 29 to rotate through the left transmission shaft 27, and further drives the driven bevel gear 32 to rotate, and further drives the sliding piston 33 to slide downwards, and pushes the shielding gas stored in the gas storage chamber 31 downwards into the vacuum chamber 12 through the one-way valve 45, so as to prevent electric sparks from occurring when the ports 37 are disconnected, the left transmission shaft 27 rotates and drives the driving pulley 28 to rotate, and further drives the driven pulley 38 to rotate through the transmission belt 44, and further drives the movable circular plate 41 and the connecting circular plate 42 to rotate through the sliding shaft 39, at this time, the ports 37 slide along the arc-shaped groove 36, when the sliding plate 35 is right opposite to the slots 52, the sliding plate 35 is pushed to slide into the slots 52 under the elastic force of the compression spring 51, so as to clamp the slots 52, and simultaneously drives the movable circular plate 41 to slide rightwards through the sliding shaft, the left lead 17 is then disconnected, and the slide shaft 39 contacts the switch 40 and activates the alarm 30, which stops the built-in motor 14.
The external air pump recharges the shielding gas in the vacuum chamber 12 through the air inlet 47 via the air outlet 50.
The invention has the beneficial effects that: the invention increases the resistance in the circuit and reduces the circuit current before the circuit reaches the maximum load, thereby protecting the power supply and the electric appliances connected on the circuit, simultaneously reducing the situation of electric sparks when the interfaces are disconnected, and firstly charging the protective gas before the two interfaces are disconnected, thereby protecting the elements in the vacuum cavity.
In the above manner, a person skilled in the art can make various changes depending on the operation mode within the scope of the present invention.
Claims (4)
1. The utility model provides a safe circuit cutting equipment, includes the box, its characterized in that: a constant-voltage power supply is fixedly arranged in the box body, the left end and the right end of the constant-voltage power supply are electrically connected with wires, the wires are connected with an external electric appliance, the right end of the constant-voltage power supply is a positive electrode, the wire on the left side of the constant-voltage power supply is electrically connected with an ammeter, and the ammeter monitors the current passing through the wires and the constant-voltage power supply; a vacuum cavity is arranged in the box body, a cutting assembly is arranged in the vacuum cavity and used for cutting off the lead on the left side and breaking a circuit, an air inlet assembly is arranged in the inner wall of the upper side of the vacuum cavity, the lead on the left side is cut off by the cutting assembly, and meanwhile, protective air is filled into the vacuum cavity by the air inlet assembly; an isolation cavity is arranged on the right side of the constant voltage power supply, an adjusting component is arranged in the isolation cavity, the contact area between a rotating resistor and a fixed resistor in the adjusting component is increased, and the resistance in a circuit is increased, and the current is reduced; a transmission cavity is formed in the upper side of the constant voltage power supply, a sector gear is rotatably arranged in the transmission cavity, the lower end of the sector gear is fixedly connected with a driving shaft, a built-in motor is fixedly arranged in the inner wall of the lower side of the transmission cavity, the lower end of the driving shaft is in power connection with the built-in motor, symmetrical gears are symmetrically arranged in the transmission cavity in a left-right mode, the symmetrical gears are meshed with the sector gear, and a transmission shaft is fixedly connected to one end, far away from the sector gear, of; a belt groove is formed in the inner wall of the upper side of the vacuum cavity and the isolation cavity, a driving belt wheel is rotationally arranged in the belt groove on the left side, the transmission shaft on the left side is fixedly connected with the driving belt wheel, a transmission belt is connected between the driving belt wheel and the adjusting assembly, the left end of the transmission shaft on the left side is connected to the air inlet assembly, a small belt wheel is rotationally arranged in the belt groove on the right side, the small belt wheel is fixedly connected with the transmission shaft on the right side, and a deceleration strip is connected between the small belt wheel and the adjusting assembly; the upper end of the box body is fixedly connected with an alarm which is electrically connected with the cutting assembly.
2. A safety circuit interrupting device as recited in claim 1, wherein: the adjusting part is located including rotating keep apart the big band pulley of intracavity, the deceleration strip lower extreme connect in big band pulley, linked firmly the back shaft in the big band pulley, the back shaft left end rotate connect in fixed resistance, the back shaft left end connect in rotary resistance, rotary resistance with contact between the fixed resistance, rotary resistance with fixed resistance connects in the right side the wire.
3. A safety circuit interrupting device as recited in claim 2, wherein: the cutting assembly comprises a driven belt wheel which is rotatably arranged in the vacuum cavity, the lower end of the transmission belt is connected to the driven belt wheel, a sliding shaft is connected to the inner spline of the driven belt wheel, a moving circular plate and a connecting circular plate are rotatably arranged on the left side of the driven belt wheel, the moving circular plate is fixedly connected to the sliding shaft, the connecting circular plate is connected to the sliding shaft in a spline mode, and a sliding plate is rotatably connected to the left end of the sliding shaft; a clamping groove with a leftward opening is formed in the connecting circular plate, a compression spring is fixedly connected between the left end of the sliding plate and the inner wall of the left side of the vacuum cavity, an arc-shaped groove is formed in the moving circular plate and the connecting circular plate in a left-right through manner, interfaces are arranged in the arc-shaped groove in a sliding manner, the interfaces on two sides are in contact connection, and the interfaces are connected with the wires on the left side; the vacuum cavity is characterized in that a switch is fixedly connected to the inner wall of the right side of the vacuum cavity, and the alarm is electrically connected to the switch.
4. A safety circuit interrupting device as recited in claim 3 wherein: the air inlet assembly comprises an air storage cavity arranged in the inner wall of the upper side of the vacuum cavity, protective gas is stored in the air storage cavity, a driving bevel gear is rotationally arranged in the air storage cavity and fixedly connected to the transmission shaft on the left side, a driven bevel gear is arranged at the lower end of the driving bevel gear in a meshed mode, a screw is fixedly connected to the lower end of the driven bevel gear, a sliding piston is arranged in the air storage cavity in a sliding mode, and the sliding piston is in threaded connection with the screw; an air inlet hole with a leftward opening is formed in the inner wall of the left side of the air storage cavity in a communicated mode, an air outlet hole with a leftward opening is formed in the inner wall of the left side of the vacuum cavity in a communicated mode, and a control valve is fixedly arranged in the air inlet hole and the air outlet hole; and a one-way valve with an opening facing the vacuum cavity is fixedly arranged between the gas storage cavity and the vacuum cavity.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010006521.3A CN110970881B (en) | 2020-01-03 | 2020-01-03 | Safe circuit cutting equipment |
| JP2020075671A JP2021111603A (en) | 2020-01-03 | 2020-04-21 | Safe circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010006521.3A CN110970881B (en) | 2020-01-03 | 2020-01-03 | Safe circuit cutting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110970881A CN110970881A (en) | 2020-04-07 |
| CN110970881B true CN110970881B (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010006521.3A Active CN110970881B (en) | 2020-01-03 | 2020-01-03 | Safe circuit cutting equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2021111603A (en) |
| CN (1) | CN110970881B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186882B (en) * | 2020-09-28 | 2021-08-03 | 乐清捷利电器有限公司 | Power supply detection module of dual-power switch circuit breaker |
| CN112566479A (en) * | 2021-01-07 | 2021-03-26 | 义乌市荀秀贸易有限公司 | Ammeter case with automatic power-off protection just prevents losing fire |
| CN115313191A (en) * | 2022-08-27 | 2022-11-08 | 浙江中能工程设计有限公司 | Power engineering power distribution cabinet with protection function and protection method thereof |
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|---|---|---|---|---|
| CN108885951A (en) * | 2016-03-01 | 2018-11-23 | 原子动力公司 | Hybrid air gap/solid circuit breaker |
| CN109347197A (en) * | 2018-11-19 | 2019-02-15 | 程日鸿 | A kind of emergency protection circuit device for electric |
| CN110253648A (en) * | 2019-07-15 | 2019-09-20 | 三门宣教机械设备有限公司 | A kind of cavity plate truncation process units preventing deformation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140098445A1 (en) * | 2011-08-17 | 2014-04-10 | Donald Randolph Hooper | Signal Activated Circuit Interrupter |
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2020
- 2020-01-03 CN CN202010006521.3A patent/CN110970881B/en active Active
- 2020-04-21 JP JP2020075671A patent/JP2021111603A/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110970881A (en) | 2020-04-07 |
| JP2021111603A (en) | 2021-08-02 |
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