CN110429489B - Power box convenient to cut off power supply fast - Google Patents
Power box convenient to cut off power supply fast Download PDFInfo
- Publication number
- CN110429489B CN110429489B CN201910553431.3A CN201910553431A CN110429489B CN 110429489 B CN110429489 B CN 110429489B CN 201910553431 A CN201910553431 A CN 201910553431A CN 110429489 B CN110429489 B CN 110429489B
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- Prior art keywords
- power
- box
- lever
- trigger
- isolation device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/14—Shutters or guards for preventing access to contacts
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
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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
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
Abstract
The invention discloses a power box convenient for quick power-off, which structurally comprises: the invention discloses a box body, an inner box, a box cover, a clamping strip, a locking block, a lock hole and an unlocking device, which has the beneficial effects that: this problem is solved through structurally being equipped with the trigger, when meeting with the power box trouble or because under the circumstances that the case lid can't open smoothly then can't close the master switch, the release that accessible power box top was equipped with inserts the lockhole and starts the trigger and realize cutting off the power supply fast, the trigger is at first through the transient overvoltage that electric power isolation device elimination power failure produced, prevent that transient overvoltage from causing more serious damage to equipment, avoid influencing domestic circuit, secondly, drive the magnetic coil of lever outage device through electric power isolation device and produce sufficient magnetic field and make the circuit break, thereby can implement the outage action to the power box rapidly under the state of not opening the power box.
Description
Technical Field
The invention relates to the field of power boxes, in particular to a power box convenient for quick power failure.
Background
The power box is arranged at home and used for managing and controlling household appliances and power lines, the power box can be switched on or switched off by means of a manual or automatic switch in normal operation, the circuit is switched off or alarmed by means of a protective appliance in fault or abnormal operation, and the deviation from the normal working state can be prompted or signaled, so that the circuit can be managed conveniently, and the circuit is favorable for maintenance when a circuit fault occurs, wherein the circuit breaker is a core component of the power box and directly determines whether the whole power box can normally operate, and is a weak link which is most prone to fault in a power supply and distribution system, the phenomenon that the circuit breaker cannot normally switch off and power off is often found when the circuit has a problem, the phenomenon that the circuit breaker rejects tripping is commonly existed in field accident treatment, the structure of the power box cannot be smoothly opened due to thermal deformation after the overload operation of the power box, and secondary is easily caused by the overload operation of the power box due to the failure of quick power off in case of Electric power accident, based on above prerequisite, this case has researched and developed a power box convenient to fast outage in order to solve this problem.
Disclosure of Invention
Aiming at the defects of the prior art, the invention is realized by the following technical scheme: an electric box convenient for quick power-off structurally comprises: the box body is connected with the inner box in an embedded mode, the box cover is connected with the box body through the clamping strip, the box cover is connected with the locking piece, the locking piece is provided with the locking hole, the unlocking device is embedded at the top of the box body, the box body is a protection structure of the power box and is also a structural bearing main body of the power box, the box body is made of high-strength metal made of insulating materials and has excellent performances of deformation resistance, high temperature resistance and insulation, the inner measurement size is matched with the inner box and can be effectively attached to the inner box to prevent the inner box from falling off, the box cover is connected with the box body through a hinge in a right single-side opening mode, the material and the box body are made of the same material and have the protection performance of the box body, the two clamping strips are respectively arranged at the upper end and the lower end of the inner side edge of the box cover and are mutually embedded with clamping grooves at corresponding positions of the box body, and the clamping strips do, the locking piece is the structure that exposes of trigger, mainly as the bearing housing of trigger, and the lockhole is hollow cylinder cavity structure, and shape and size is the same with the release end, is on the one hand as the theftproof function use, can't open under the prerequisite with the release, and its inner structure both sides diverse uses the release to the left turn be the hasp mechanism between release case lid and the box, breaks off connection between them, rotates right and then enables the release and directly runs through the lockhole and let release end and trigger collide with each other.
As a further technical supplement of the invention, the inner box consists of a box plate, a buckling strip, a through hole, a base body, a circuit breaker, a main switch, a protector and a trigger, wherein the box plate is provided with the buckling strip and is connected with the base body, the through hole is arranged on the box plate and corresponds to the trigger on the base body, the circuit breaker and the main switch are both arranged on the base body, the base body is provided with the protector, the box plate is made of high-strength high-temperature-resistant plastic material and can isolate the influence caused by high temperature generated when the power box runs and prevent deformation, the buckling strip on the box plate is a connecting carrier between the box plate and the base body, when the box plate is buckled on the base body, the box plate and the base body can be temporarily locked through the buckling strip to prevent the box plate from being opened, the through hole is of an oval hole structure penetrating through the box plate, the covering position of the through hole corresponds to the tail, the circuit breaker is an air circuit breaker, which can be used for switching on, breaking and bearing rated working current and fault current such as short circuit, overload and the like in a circuit, and can quickly break the circuit and reliably protect the circuit under the conditions of overload, short circuit, undervoltage and the like of a line and a load, the movable contact, the fixed contact and the contact rod of the circuit breaker are different in structure, but the main purpose is to improve the breaking capacity of the circuit breaker, the current limiting principle of limiting the peak value of the short circuit current during breaking is utilized by a certain contact structure, so that the breaking capacity of the circuit breaker is obviously improved, a master switch is used for power cut-off which needs to be subjected to power maintenance and inspection when a power box normally operates at ordinary times, the protector is a master control structure of all circuits, has a leakage protection function, and can be tripped when a person touches a live body to ensure, the leakage protector is a main function of the leakage protector, if the electrical equipment is not well insulated and leaks electricity to the shell, the protector used for leakage protection can also trip, so that the human body is prevented from touching and getting an electric shock, and the leakage protector has the functions of current on-off, overload protection and short circuit protection.
As a further technical supplement of the invention, the trigger consists of a lever power-off device, a lifting shaft, an electric isolation device, a shell, a conductive block, a pressing block, a limiting block and a reed pipe, wherein the lever power-off device is connected with the electric isolation device through the lifting shaft, the electric isolation device is provided with the shell and is connected with the conductive block, the conductive block is connected with the limiting block through the pressing block, the limiting block is connected with the reed pipe, the lifting shaft is one of core components of the trigger and acts on a lifting force which is used for converting a pushing force transmitted by the electric isolation device into a vertical reciprocating lifting force so as to be connected with the lifting force to drive the lever power-off device, and when the trigger works, the lifting shaft can transmit resistance under the action of current pressure and inertia force, so that the lifting shaft can be subjected to periodic alternating loads such as tension, compression and bending to cause the vibration and fatigue damage of, the torsional vibration and resonance phenomena do not occur in the range of the application pressure, the shell has good balance, the shell has the function of isolating electric power leakage, the shell is mainly used for protecting a conductive block, a pressing block and a limiting block, the conductive block is used for conducting current, the pressing block starts an electric power isolating device linkage lever power-off device through a pushing force, the limiting block realizes the reset of a reed pipe, and the reed pipe is a trigger carrier and is an exposed structure of a trigger.
As a further technical supplement of the invention, the lever power-off device comprises an upper cover, a second arc extinguishing seat, a bimetallic strip, a first arc extinguishing seat, an insulating ring, a shaft collar, a lever, a jump buckle, a power connection block, a support rod and a magnetic coil, wherein the bottom of the upper cover is connected with the second arc extinguishing seat, the second arc extinguishing seat is connected with the first arc extinguishing seat through the bimetallic strip, the insulating ring is arranged at the bottom of the first arc extinguishing seat and connected with the shaft collar, the lever is arranged between the shaft collar and the insulating ring and connected with the power connection block, the power connection block is provided with the jump buckle, the support rod is connected with the magnetic coil, the second arc extinguishing seat and the first arc extinguishing seat are used for extinguishing electric arcs, a large amount of free electrons are contained in the contacts of the switch electrical appliance and media around the contacts, when enough external applied voltage exists between the disconnected contacts, and when the circuit current also reaches the minimum arc generation current, the second arc extinguishing seat and the first arc extinguishing seat, the circuit is continuously conducted, the medium of an electric arc and a nearby area of the electric arc can be changed in a strong physical and chemical mode, the contact and other parts nearby the contact can be burnt out, if the electric arc is not extinguished for a long time, the electric power box can be burnt and even exploded, and the safe operation of a power system is damaged, so that the second arc extinguishing seat and the first arc extinguishing seat are mainly used for extinguishing the electric arc as soon as possible when the power box is powered off, a large amount of generated electric arcs and sparks are quickly extinguished, the fire is avoided, the bimetallic strip is used for high-temperature power failure of the power box, the bimetallic strip can be heated and bent during the overload operation of the power box, the circuit is disconnected, the shaft collar and the lever are both connection carriers of the power connection block and the power isolation device, the trip button is safe for the circuit, and the magnetic coil can generate enough magnetic field to disconnect.
As a further technical supplement of the invention, the electric power isolation device consists of a diversion lower plate, anchoring wire clamps, a diverter, a wave projecting cavity, an insulating rod, a guide wheel and a diversion upper plate, wherein the diversion lower plate is arranged at one end of the diverter, the anchoring wire clamps are arranged at four corners of the diverter, the wave projecting cavity is arranged at two ends of the diverter, the other end of the diverter is connected with the diversion upper plate through the insulating rod, the diversion upper plate is provided with the guide wheel, the diversion lower plate is used for connecting a lifting shaft to enable the electric power isolation device and the lever power-off device to be linked, the diverter is used for diverting residual electric power, the residual electric power can slightly deviate along the insulating rod along the temperature change when the insulating rod is influenced by the electric power, but the deviation does not occur under the condition that the rated tension is less than three times, all parts of the diverter, which are in contact with the working, when the power box breaks down, transient overvoltage exceeding normal working voltage can be generated, the surge cavity can be matched with the insulating rod to absorb residual surge energy more perfectly, and the transient overvoltage is well inhibited.
Advantageous effects
The invention is applied to the power-off technology of the power box, and mainly aims to solve the problems that the phenomenon that a breaker cannot normally open a brake and power off is often found when a circuit has a problem, the phenomenon that the breaker rejects tripping commonly exists in field accident treatment, and the structure of the power box cannot be smoothly opened due to thermal deformation after the power box runs in an overload mode;
the trigger is structurally arranged to solve the problem, when the power box is in failure or the box cover cannot be opened smoothly and then the main switch cannot be closed, the trigger can be started by inserting the unlocking device arranged at the top of the power box into the lock hole to realize rapid power off, firstly, the trigger eliminates transient overvoltage generated by power failure through the power isolation device to prevent the equipment from being seriously damaged by the transient overvoltage and avoid influencing household circuits, secondly, the power isolation device drives the magnetic coil of the lever power-off device to generate enough magnetic field to break the circuit, and a large amount of electric arcs and sparks generated are rapidly extinguished by the second arc extinguishing seat and the first arc extinguishing seat to avoid fire disasters, so that the power-off action of the power box can be rapidly implemented under the state that the power box is not opened.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic diagram of an external structure of a power box facilitating quick power-off according to the present invention.
Fig. 2 is a structural diagram of an inner box of the power box convenient for quick power off according to the present invention.
Fig. 3 is a front sectional view of a trigger structure of a power box facilitating rapid power off according to the present invention.
Fig. 4 is a front sectional view of a power isolation device of a trigger of a power box for facilitating quick power-off according to the present invention.
Fig. 5 is a front sectional view of a trigger lever power-off device of a power box convenient for quick power-off according to the present invention.
In the figure: the device comprises a box body-1, an inner box-2, a box cover-3, a clamping strip-4, a locking block-5, a locking hole-6, an unlocking device-7, a box plate-10, a buckling strip-11, a through hole-12, a base body-13, a circuit breaker-14, a main switch-15, a protector-16, a trigger-17, a lever power-off device-20, a lifting shaft-21, a power isolation device-22, a shell-23, a conductive block-24, a pressing block-25, a limiting block-26, a reed pipe-27, a diversion lower plate-30, an anchoring wire clamp-31, a shunt-32, a surge cavity-33, an insulating rod-34, a guide wheel-35, a diversion upper plate-36, an upper cover-40, a second arc extinguishing seat-41, a bimetallic strip-42, a lock plate-6, a lock release, The first arc extinguishing seat-43, the insulating ring-44, the collar-45, the lever-46, the jump buckle-47, the power connection block-48, the support rod-49 and the magnetic coil-50.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Examples
Referring to fig. 1, the present invention provides a power box convenient for fast power off, which comprises: the box body 1 is connected with the inner box 2 in an embedded mode, the box cover 3 is connected with the box body 1 through the clamping strip 4, the box cover 3 is connected with the locking block 5, the locking block 5 is provided with the locking hole 6, the unlocking device 7 is embedded at the top of the box body 1, the box body 1 is a protection structure of the power box and is also a structure bearing main body of the power box, the box body is made of high-strength metal made of insulating materials and has excellent performances of deformation prevention, high temperature resistance and insulation, the internal measurement size is matched with the inner box 2 and can be effectively attached to the inner box 2 to prevent falling off, the box cover 3 is connected with the box body 1 through a hinge and is in a right side single side opening mode, the materials and the box body 1 are the same materials and have the protection performance of the box body 1, the clamping strips 4 are two in total and are respectively arranged at the upper end and the lower end of the inner side edge of the box cover 3 and are mutually matched with clamping grooves at corresponding positions of the box body 1, after withholding, there is not the external force intervention can not be by oneself the disconnection, locking piece 5 is the structure that exposes of trigger 17, mainly as the bearing housing of trigger 17, lockhole 6 is the hollow cylinder cavity structure, the overall dimension is the same with unlocking device 7 end, on the one hand, regard as the theftproof function to use, can't open under the prerequisite of unused unlocking device 17, its inner structure both sides are diverse, it is the hasp mechanism between unlocking case lid 3 and the box 1 to use unlocking device 17 to rotate left, the disconnection between them, it then can make unlocking device 7 directly run through lockhole 6 and let unlocking device 7 end and trigger collide each other to rotate right.
Referring to fig. 2, the present invention provides a power box convenient for fast power off, which includes: the inner box 2 is composed of a box plate 10, a buckle strip 11, a through hole 12, a base body 13, a breaker 14, a master switch 15, a protector 16 and a trigger 17, wherein the box plate 10 is provided with the buckle strip 11 and is connected with the base body 13, the through hole 12 is arranged on the box plate 10 and corresponds to the trigger 17 on the base body 13, the breaker 14 and the master switch 15 are both arranged on the base body 13, the base body 13 is provided with the protector 16, the box plate 10 is made of high-strength high-temperature-resistant plastic materials and can isolate the influence caused by high temperature generated when the power box operates and prevent deformation, the buckle strip 11 on the box plate 10 is a connecting carrier between the box plate 10 and the base body 13, when the box plate 10 is buckled with the base body 13, the box plate 10 can be temporarily locked by the buckle strip 11 to prevent the box plate 10 from being opened, the through hole 12 is an oval hole penetrating through the box plate 10, the covering position of the through hole corresponds to the, the breaker 14 is an air breaker which is used for switching on, breaking and bearing rated working current, short circuit, overload and other fault currents in a circuit, and can quickly break the circuit to reliably protect the circuit under the conditions that the circuit and a load are overloaded, short circuit, undervoltage and the like, but the main purpose is to improve the breaking capacity of the breaker, utilize a certain contact structure and limit the current limiting principle of a short-circuit current peak value during breaking, have obvious effect on improving the breaking capacity of the breaker, the main switch 15 is used for power cut-off which needs power maintenance and inspection when a power box normally operates at ordinary times, is a master control structure of all circuits, and the protector 16 has a leakage protection function, people touch the electrified body and can trip, ensure personal safety, be leakage protector's main function, if the consumer does not well insulate on the shell, the used protector 16 of leakage protection also can trip, avoids human touch electric shock, possesses electric current break-make function, overload protection and short-circuit protection function simultaneously.
Referring to fig. 3, the present invention provides a power box convenient for fast power off, which includes: the trigger 17 is composed of a lever power-off device 20, a lifting shaft 21, an electric isolation device 22, a shell 23, a conductive block 24, a pressing block 25, a limiting block 26 and a reed tube 27, the lever power-off device 20 is connected with the electric isolation device 22 through the lifting shaft 21, the electric isolation device 22 is provided with the shell 23 and is connected with the conductive block 24, the conductive block 24 is connected with the limiting block 26 through the pressing block 25, the limiting block 26 is connected with the reed tube 27, the lifting shaft 21 is one of core components of the trigger 17 and acts on a lifting force which is used for converting a pushing force transmitted by the electric isolation device 22 into reciprocating up and down to be connected with the lifting force to drive the lever power-off device 20, and when the trigger works, the lifting shaft 21 can transmit resistance under the action of current pressure and inertia force, so that the lifting shaft 21 can cause vibration and fatigue failure of the lifting shaft 21 under the action of periodic alternating loads, therefore, the lifting shaft 21 has sufficient strength and rigidity, does not generate torsional vibration and resonance phenomena within the range of use pressure, and has good balance, the shell 23 has the function of isolating electric power leakage, and is mainly used for protecting the conductive block 24, the pressing block 25 and the limiting block 26, the conductive block 24 is used for conducting current, the pressing block 25 starts the electric power isolation device 22 through pushing force to link the lever power-off device 20, the limiting block 26 realizes the reset of the reed pipe 27, and the reed pipe 27 is a trigger carrier and is an exposed structure of the trigger 17.
Referring to fig. 4, the present invention provides a power box convenient for fast power off, which includes: the electric power isolation device 22 comprises a flow guide lower plate 30, an anchoring wire clamp 31, a shunt 32, a wave protruding cavity 33, an insulating rod 34, a guide wheel 35 and a flow guide upper plate 36, wherein the flow guide lower plate 30 is arranged at one end of the shunt 32, the anchoring wire clamp 31 is arranged at four corners of the shunt 32, the wave protruding cavity 33 is arranged at two ends of the shunt 32, the other end of the shunt 32 is connected with the flow guide upper plate 36 through the insulating rod 34, the flow guide upper plate 36 is provided with the guide wheel 35, the flow guide lower plate 30 is used for connecting a lifting shaft 21 to enable the electric power isolation device 22 and the lever power-off device 20 to generate linkage, the shunt 32 is used for shunting residual electric power, the electric power isolation device can slightly deviate along the insulating rod 34 along with temperature change when the insulating rod 34 is influenced by the electric power, but does not deviate under the condition of three times of rated tension, all parts of the shunt 32, which are contacted with a pantograph working surface, are horizontally, when the power box has faults, transient overvoltage exceeding normal working voltage can be generated, the surge cavity 33 can be matched with the insulating rod 34 to absorb residual surge energy more perfectly, and the transient overvoltage can be well inhibited.
Referring to fig. 5, the present invention provides a power box convenient for fast power off, which includes: the lever power-off device 20 comprises an upper cover 40, a second arc-extinguishing seat 41, a bimetallic strip 42, a first arc-extinguishing seat 43, an insulating ring 44, a shaft collar 45, a lever 46, a jump buckle 47, a power connection block 48, a support rod 49 and a magnetic coil 50, wherein the bottom of the upper cover 40 is connected with the second arc-extinguishing seat 41, the second arc-extinguishing seat 41 is connected with the first arc-extinguishing seat 43 through the bimetallic strip 42, the insulating ring 44 is arranged at the bottom of the first arc-extinguishing seat 43 and is connected with the shaft collar 45, the lever 46 is arranged between the shaft collar 45 and the insulating ring 44, the lever 46 is connected with the power connection block 48, the power connection block 48 is provided with the jump buckle 47, the support rod 49 is connected at the bottom of the shaft collar 45, the support rod 49 is connected with the magnetic coil 50, the second arc-extinguishing seat 41 and the first arc-extinguishing seat 43 are both used for extinguishing electric arcs, a large amount of electrons which can be dissociated are contained in the contact of the switch electrical apparatus and, they are strongly dissociated and form an arc, which continues the circuit and causes a strong physicochemical change in the medium of the arc and its vicinity, possibly burning the contact and other parts in the vicinity of the contact, if the electric arc is not extinguished for a long time, the electric box is burnt and even exploded, the safe operation of the electric power system is damaged, therefore, the second arc-extinguishing seat 41 and the first arc-extinguishing seat 43 mainly have the main functions of extinguishing electric arcs as soon as possible when power is cut off, quickly extinguishing a large amount of generated electric arcs and sparks to avoid fire, the bimetallic strip 42 is used for high-temperature power cut-off of the power box, during overload operation of the power box, the bimetal 42 is heated and bent to open the circuit, the collar 45 and the lever 46 are both connection carriers of the electric connection block 48 and the power isolation device 22, the trip 47 is a tripping button for circuit safety, and the magnetic coil 50 can generate enough magnetic field to open the circuit when in short circuit.
When the power box is hung at home for use, if the power box is in fault, firstly, the fault reason of the power box is listed and responded, because the power box is in overload operation and generates high temperature, the bimetallic strip 42 on the lever power-off device 20 can be heated and bent in the process of the overload operation of the power box so as to break a circuit, if the power box is in fault and the box cover 3 can be opened smoothly, only the main switch 15 needs to be pulled down for power failure, if the power box can not be opened, the unlocking device 7 is inserted into the lock hole 6 on the box cover 3 and rotates rightwards, the unlocking device 7 directly penetrates through the lock hole 6 so that the tail end of the unlocking device 7 collides with the trigger, the reed pipe 27 on the trigger 17 pushes the power isolation device 22 to drive the lifting shaft 21 to press the lever power-off device 20, and the magnetic coil 50 on the lever power-off device 20 can generate enough magnetic field to break the circuit of the power box when in, meanwhile, the lever power-off device 20 and the power isolation device 22 are utilized to eliminate electric arcs and instantaneous overvoltage generated by instantaneous power-off of the power box, so that the power box is prevented from being damaged.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. An electric box convenient for quick power-off structurally comprises: box (1), inner box (2), case lid (3), card strip (4), locking piece (5), lockhole (6), unlocking ware (7), its characterized in that:
the box body (1) is connected with the inner box (2) in an embedded mode, the box cover (3) is connected with the box body (1) through the clamping strip (4), the box cover (3) is connected with the locking block (5), the locking block (5) is provided with a lock hole (6), and the unlocking device (7) is embedded in the top of the box body (1);
the inner box (2) consists of a box plate (10), a buckling strip (11), a through hole (12), a base body (13), a circuit breaker (14), a main switch (15), a protector (16) and a trigger (17), wherein the box plate (10) is provided with the buckling strip (11) and is connected with the base body (13), the through hole (12) is formed in the box plate (10) and corresponds to the trigger (17) on the base body (13), the circuit breaker (14) and the main switch (15) are both formed in the base body (13), and the base body (13) is provided with the protector (16);
trigger (17) are by lever outage device (20), promote axle (21), electric power isolation device (22), casing (23), conducting block (24), press piece (25), stopper (26), reed pipe (27) to constitute, lever outage device (20) are through promoting axle (21) connection electric power isolation device (22), and electric power isolation device (22) are equipped with casing (23) and link to each other with conducting block (24), and conducting block (24) are through pressing piece (25) connection stopper (26), and stopper (26) link to each other with reed pipe (27).
2. The power box convenient for quick power off of claim 1, wherein: the lever power-off device (20) comprises an upper cover (40), a second arc extinguishing seat (41), a bimetallic strip (42), a first arc extinguishing seat (43), an insulating ring (44), a shaft collar (45), a lever (46), a jump buckle (47), a power connection block (48), a support rod (49) and a magnetic coil (50), wherein the second arc extinguishing seat (41) is connected to the bottom of the upper cover (40), the second arc extinguishing seat (41) is connected to the first arc extinguishing seat (43) through the bimetallic strip (42), the insulating ring (44) is arranged at the bottom of the first arc extinguishing seat (43) and is connected with the shaft collar (45), the lever (46) is arranged between the shaft collar (45) and the insulating ring (44), the power connection block (48) is connected to the lever (46), the jump buckle (47) is arranged on the power connection block (48), the support rod (49) is connected to the bottom of the shaft collar (45), and the support rod (49) is connected with the magnetic coil (.
3. The power box convenient for quick power off of claim 1, wherein: electric power isolation device (22) comprises water conservancy diversion hypoplastron (30), anchor fastener (31), shunt (32), abrupt ripples chamber (33), insulating rod (34), guide pulley (35), water conservancy diversion upper plate (36), shunt (32) one end is located in water conservancy diversion hypoplastron (30), and shunt (32) four corners is equipped with anchor fastener (31), and abrupt ripples chamber (33) are located shunt (32) both ends, and shunt (32) other end passes through insulating rod (34) and connects water conservancy diversion upper plate (36), and water conservancy diversion upper plate (36) are equipped with guide pulley (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553431.3A CN110429489B (en) | 2019-06-25 | 2019-06-25 | Power box convenient to cut off power supply fast |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910553431.3A CN110429489B (en) | 2019-06-25 | 2019-06-25 | Power box convenient to cut off power supply fast |
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| CN110429489A CN110429489A (en) | 2019-11-08 |
| CN110429489B true CN110429489B (en) | 2020-08-25 |
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| CN201910553431.3A Active CN110429489B (en) | 2019-06-25 | 2019-06-25 | Power box convenient to cut off power supply fast |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111145457B (en) * | 2019-12-24 | 2021-02-05 | 上海阿法迪智能数字科技股份有限公司 | Library self-service book borrowing system based on mobile terminal |
| CN111508791B (en) * | 2020-04-15 | 2022-06-21 | 浙江华楷电气有限公司 | Single-wire circuit breaker |
| CN111613979A (en) * | 2020-06-08 | 2020-09-01 | 杭州千耘贸易有限公司 | Alternating current distribution arc protection device capable of avoiding misoperation |
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|---|---|
| CN110429489A (en) | 2019-11-08 |
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