CN117117776B - Safety protection self-outage assembly for power engineering service and protection method - Google Patents
Safety protection self-outage assembly for power engineering service and protection method Download PDFInfo
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- CN117117776B CN117117776B CN202310941649.2A CN202310941649A CN117117776B CN 117117776 B CN117117776 B CN 117117776B CN 202310941649 A CN202310941649 A CN 202310941649A CN 117117776 B CN117117776 B CN 117117776B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 107
- 238000001514 detection method Methods 0.000 claims abstract description 59
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- 230000009471 action Effects 0.000 claims description 38
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- 230000007246 mechanism Effects 0.000 claims description 21
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- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 11
- 238000004806 packaging method and process Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 9
- 238000013461 design Methods 0.000 claims description 8
- 230000003111 delayed effect Effects 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 6
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- 230000001960 triggered effect Effects 0.000 abstract description 6
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- 230000008020 evaporation Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 26
- 238000009825 accumulation Methods 0.000 description 7
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- 238000003892 spreading Methods 0.000 description 1
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Classifications
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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
- H01H71/66—Power reset mechanisms
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
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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
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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
- H02H3/02—Details
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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
- H02H3/02—Details
- H02H3/025—Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection
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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
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
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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
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
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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
- H02H3/02—Details
- H02H3/06—Details with automatic reconnection
- H02H3/066—Reconnection being a consequence of eliminating the fault which caused disconnection
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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
- 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
- H02H3/093—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 with timing means
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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
- H02H3/10—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 additionally responsive to some other abnormal electrical conditions
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
- H02H5/083—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays responsive to the entry or leakage of a liquid into an electrical appliance
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to the field of electric power technology service, and discloses a safety protection self-outage assembly and a protection method for electric power engineering service, wherein the self-outage assembly formed by a water inlet detection patch cord, a short-circuit end transfer device and a self-resetting air switch is matched for working, when a small amount of water seepage occurs at the inserted connection position of a power connector and an output patch plug, the small amount of water seepage is directly evaporated by detecting a fusing evaporation mode on site, the tripping and breaking protection is not required to be triggered by the self-resetting air switch, and the production interruption is avoided; when a large amount of water seeping at the joint is inserted between the power connector and the output adapter plug, the heat of the loop is intermittently accumulated by intermittent triggering short circuit, the short circuit end is transferred by utilizing the thermal deformation effect of the bimetallic strip, active short circuit triggering jump of the self-resetting air switch is carried out, the main body of the power equipment is effectively jumped and broken for protection when the water seeping is more, the property loss is reduced, and the product is suitable for effective outage protection when large-scale equipment like power service equipment is used.
Description
Technical Field
The invention relates to the field of power technology service, in particular to a safety protection self-outage assembly and a protection method for power engineering service.
Background
The power engineering service industry is an important component of the power industry and mainly comprises four links of power generation, power transmission, power distribution and power utilization. With the continuous development of global economy, the power engineering service industry is also rapidly developing. In the next few years, the development prospect of the power engineering service industry is very wide.
The device for electric power engineering service operation is mostly high-power equipment, in order to ensure the safety of the electric power operation of the high-power electric power equipment, an automatic power-off device is independently arranged on each device, the current automatic power-off device is an air switch manufactured by utilizing an electromagnetic principle, and mainly performs circuit fast tripping and circuit breaking protection under the conditions of water inlet short circuit and overload high temperature of the device, effective electric protection is provided for the devices and personnel, and the device is manufactured by adopting an electronic information technology at present, so that the device can monitor various electric power states, but the intelligent air switch has environmental limitation in the actual use process, and particularly has the problems of unstable chip work and untimely jump on the intelligent air switch when the electric power engineering service operation is performed in underground and a strong magnetic field environment.
The prior art has the following defects: the conventional air switch at present has good power-off protection capability for high-power equipment, but in the actual use process, the following problems still exist, and the main problems are as follows: 1. the tripping action of the air switch is necessarily performed after the equipment has the problems, and the tripping action is delayed relative to the equipment fault occurrence time, especially the water inlet short-circuit fault, when the air switch has long service time and insensitive mechanical jump action, the short-circuit heating in a short time can burn the circuit structure of the equipment, especially the exposed plug part of the equipment when the delay time is longer; 2. after the air switch jumps, the air switch often needs to be manually pushed to reset, and the device is inconvenient to operate.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, the present invention provides a safety protection self-powered-off assembly for power engineering service and a protection method thereof, so as to solve the problems in the above-mentioned background art.
The invention provides the following technical scheme: the safety protection self-power-off assembly for the power engineering service comprises a power equipment main body, wherein a water inlet detection switching line is inserted in the power equipment main body, a short-circuit end transfer device is inserted in the water inlet detection switching line, a self-reset air switch is inserted in the short-circuit end transfer device, and the power equipment main body is in transitional butt joint with the self-reset air switch through the water inlet detection switching line and the short-circuit end transfer device;
The water inlet detection patch cord comprises a conduit, an input patch plug and an output patch plug are respectively in butt joint with the input and output ends of the conduit, the output patch plug is in butt joint with the power connector in an inserting way, an annular groove is formed in the outer end wall of the output patch plug, and a plurality of first detection filaments and second detection filaments which are distributed in a staggered way are fixedly sleeved in the annular groove;
The short-circuit end transfer device comprises a shielding box, a pair of switching electrode heads which are symmetrically and electrically connected are fixedly arranged in the shielding box, an input switching plug is inserted into the shielding box and is electrically connected with the switching electrode heads, first detection filaments and second detection filaments penetrate into an output switching plug and are electrically connected with different electrode ends of the output switching plug, and a bimetallic strip is fixedly arranged at one electrode end of the switching electrode heads.
Preferably, the self-resetting air switch comprises a packaging shell, a spanner and a central lever are rotatably arranged in the packaging shell, a first pull ring is rotatably bridged between the spanner and the central lever, a lower conductive wire is arranged in the central lever, a second pull ring is rotatably bridged between the lower conductive wire and the central lever, a first spring is bound between the second pull ring and the central lever, a binding piece is fixedly connected in the packaging shell, a second spring is bound between the binding piece and the spanner, an upper conductive wire and a self-resetting long-distance telescopic ejector rod are fixedly clamped in the packaging shell, a conductive coil is wound on a conduction path of the upper conductive wire, the self-resetting long-distance telescopic ejector rod is arranged in the conductive coil, a telescopic end of the self-resetting long-distance telescopic ejector rod is contacted with the top end of the central lever, and a spring energy storage delay self-resetting mechanism is driven by the telescopic end of the self-resetting long-distance telescopic ejector rod;
when the electric power device is used, a worker pushes a spanner into place, spanner moment changes, the central lever is driven to synchronously rotate through the first pull ring, the central lever is in a horizontal posture, the second spring is stretched, the first spring is compressed, the central lever in the horizontal posture can drive the second pull ring to finally stretch the lower conducting wire to a position propped against the upper conducting wire, the whole circuit is conducted, a strong electromagnetic field is generated in a conducting coil of the upper conducting wire when a short circuit passes through, the self-resetting long-distance telescopic ejector rod is pushed to move downwards, the central lever is pressed downwards, after spanner moment changes, the action component can rapidly jump to drive the upper conducting wire and the lower conducting wire to finish separating tripping action in millisecond time, and in the tripping process, the self-resetting long-distance telescopic ejector rod telescopic end can drive a spring energy storage delay self-resetting mechanism to store energy, the down-resetting and closing the spanner delay time, manual closing of the worker is not needed, the device is more convenient to operate, and the device can work stably in the electric power service underground and strong magnetic field environment is ensured.
Preferably, the spring energy storage time-delay self-resetting mechanism comprises a transmission bar, a toothed plate is fixedly clamped at the bottom end of the transmission bar, a first gear is meshed with the side edge of the toothed plate, a second gear is meshed with the outer end wall of the first gear, a spring is fixedly clamped at the output end of the second gear, a multi-stage speed reduction module is fixedly clamped at the output end of the spring, a third gear is fixedly clamped at the output end of the multi-stage speed reduction module, a fourth gear is meshed with the outer end wall of the third gear, and the fourth gear is clamped on a spanner;
The spring energy storage time-delay self-resetting mechanism has the specific action process that the flexible end of the self-resetting long-distance telescopic ejector rod moves downwards synchronously along with the transmission strip and the toothed plate synchronously pushed by the self-resetting long-distance telescopic ejector rod on the premise of not influencing tripping action after the self-resetting air switch is pushed to trip in long-stroke pushing work, the toothed plate drives the first gear and the second gear to synchronously mesh and rotate so as to drive the spring to store energy, the multi-stage speed reduction module is used for decelerating and releasing the accumulated energy of the spring after the energy storage is completed, the specific speed reduction effect is realized by the stage number of the multi-stage speed reduction module, the energy released by the speed reduction is finally transmitted to the spanner through the third gear and the fourth gear, and the spanner slowly rotates upwards to close under the meshing transmission relation of the third gear and the fourth gear, so that the spanner can automatically delay closing and reset after tripping for a period of time, the artificial closing action is not needed, and the using convenience of the device is improved.
Preferably, the wrench is fixedly clamped with a one-way bearing at the mounting position of the fourth gear, and the fourth gear is fixedly clamped outside the one-way bearing;
Through the unidirectional locking effect of the unidirectional bearing, the meshing transmission of the third gear to the fourth gear can be smoothly transmitted to the spanner through the unidirectional bearing, the spanner is switched on in a delayed manner, and during tripping, the downward rotation tripping action of the spanner is not reversely transmitted to the fourth gear through the unidirectional bearing, so that the reverse meshing transmission of the fourth gear to the third gear does not exist, the possibility that the parts such as a multistage reduction module and a spring associated with the third gear prevent or slow down the rotation tripping action of the spanner is avoided, the spring energy storage delay self-resetting mechanism is ensured, the smooth delay resetting action of the spanner is not blocked, the overlong separation time of an upper conducting wire and a lower conducting wire is avoided, a large amount of electric arcs are pulled out in an initial separation stage, the possibility that the self-resetting air switch burns out is improved, and the use safety of the self-resetting air switch is improved.
Preferably, the design size of the second gear is smaller than that of the first gear, and a unidirectional bearing is also arranged at the joint of the second gear and the spring;
through the design size arrangement of the second gear selected for use is smaller than the design size of the first gear selected for use, the first gear and the second gear have a certain transmission ratio, when the first gear rotates in a semicircle or a circle, the second gear can drive the spring to smoothly rotate for a plurality of circles for energy storage, the energy storage action is smoothly completed, the unidirectional bearing assembled at the joint of the second gear and the spring ensures that the rotation energy storage process of the toothed plate, the first gear and the second gear to the spring can be smoothly carried out through the same unidirectional locking effect, and the reverse energy release process of the spring can not be blocked due to the reverse engagement of the second gear, the first gear and the toothed plate, so that the energy storage release action of the spring energy storage delay self-resetting mechanism is further ensured to be orderly carried out.
Preferably, a plurality of arc extinguishing grid plates which are uniformly arranged are fixedly clamped in the packaging shell, the bottom ends of the arc extinguishing grid plates are fixedly connected with arc striking plates, and the lower conductive wires are fixedly connected with the arc striking plates;
In the process of smoothly tripping the wrench and rapidly separating the lower conductive wire and the upper conductive wire, the short-circuit large arc generated during separation is smoothly guided into the arc extinguishing grid plate to be extinguished through the arc striking plate, so that the use safety of the self-resetting air switch is further improved.
Preferably, a protective shell is fixedly arranged on the self-resetting air switch, and the first gear, the second gear, the spring, the multi-stage speed reduction module and the third gear are all arranged in the protective shell;
To provide stable working support for the first gear, the second gear, the spring, the multi-stage reduction module and the third gear through the protective housing.
Preferably, an electric control air valve is fixedly arranged in the shielding box, the switching electrode heads are symmetrically and electrically connected to the input and output ends of the electric control air valve, a deformation sensor patch is fixedly adhered to the bimetallic strip, and signal transmission between the deformation sensor patch and the electric control air valve is completed in the shielding box through a data line;
When the load of the power equipment main body increases, the bimetallic strip can also generate thermal deformation, the bimetallic strip can actively trigger short circuit when the load of the power equipment main body increases to generate heat, the power equipment main body is actively powered off for protection, and the power spring energy storage delay self-resetting mechanism in the self-resetting air switch can smoothly store energy through an active triggering short circuit mode, so that energy is provided for active closing, and the deformation state of the bimetallic strip by the deformation sensor patch is transmitted back to the electric control air valve through a data line, so that real-time recording is performed.
Preferably, a miniature fire extinguishing air tank is arranged in the electric control air valve, the miniature fire extinguishing air tank is controlled to be opened and closed by the electric control air valve, a heat-resistant sealing air bag is sleeved in a ring groove formed in the output adapter plug, the first detection thread and the second detection thread are adhered and fixed on the heat-resistant sealing air bag, and the heat-resistant sealing air bag is mutually communicated with the fire extinguishing air tank arranged in the electric control air valve through an air pipe which synchronously penetrates through the conduit;
In the working process of supplying power to the main body of the electric power equipment through an external power supply, the electric control air valve is synchronously supplied, the deformation state of the deformation sensor patch is recorded in real time through the electric control air valve, when deformation occurs, namely, the miniature fire extinguishing air tank arranged in the main body of the electric power equipment is controlled to be opened through the electric control air valve, the heat-resistant sealing air bag is inflated to prevent external water from continuously penetrating into a power connector and an output adapter plug to be inserted into a connecting position, the bimetallic strip is deformed and overlapped with different electrode ends of the adapter electrode heads, namely, external water seepage is insulated and plugged in advance before triggering a short-circuit action, the possibility of injury of external workers caused by water seepage and electric leakage electric shock is avoided before tripping protection of a self-resetting air switch, the electric leakage protection effect of the self-outage assembly to the on-site workers is further improved, the electric leakage damage of the circuit structure in the main body of the electric power equipment is also avoided to be not treated cleanly in time when the water seepage is detected, and when the electric power is burnt at the position of the short-circuit end transfer device where the short-circuit end is located, and the fire extinguishing air tank is burnt in the miniature fire extinguishing air tank can extinguish the short-circuit end transfer device in the combustion state, and the explosion of the electric power shock main body is prevented from being caused to be damaged in time, and the main body of the explosion of the electric power shock connection is prevented from being caused, and the electric shock of the main body is not to be far away from the water connection.
A protection method for a safety protection self-power-off component for electric power engineering service comprises the following steps:
S1, power supply work: the power equipment main body is stably powered by a self-powered off assembly formed by a water inlet detection patch cord, a short-circuit end transfer device and a self-resetting air switch;
S2, water inlet and power off: the water inflow detection patch cord, the short-circuit end transfer device and the self-resetting air switch are matched to work, so that different water seepage at the joint of the water inflow detection patch cord and the power equipment main body are correspondingly treated, and the power equipment main body is effectively protected on the premise of ensuring stable production of the power equipment main body;
s3, overload power-off: the thermal deformation finished by the bimetallic strip actively triggers the short-circuit effect, so that not only can the water inlet power-off protection effect be realized, but also the overload power-off protection effect can be realized;
S4, actively resetting: the self-resetting air switch is tripped and power-off protected through a spring energy storage delay self-resetting mechanism additionally arranged in the self-resetting air switch, and a mechanical tripping component is actively delayed to be switched on;
S5, insulating protection: the deformation action of the bimetallic strip is recorded in real time through the electric control air valve and the deformation sensor patch, and when the deformation action occurs, the electric control air valve controls the miniature fire extinguishing air tank to actively supply air and expand to the heat-resistant sealing air bag at the joint of the electric power equipment main body and the water inlet detection patch cord, so that external water seepage is prevented, and the joint of the electric power equipment main body and the water inlet detection patch cord is insulated and protected.
The invention has the technical effects and advantages that:
1. According to the invention, the self-outage assembly formed by the water inlet detection adapter wire, the short-circuit end shifter and the self-resetting air switch is matched for working, when a small amount of water seepage occurs at the joint of the power connector and the output adapter plug, the small amount of water seepage is directly evaporated by detecting a fusing evaporation mode on site, the self-resetting air switch is not required to trigger tripping circuit breaking protection, the production interruption is avoided, meanwhile, the small amount of water seepage short circuit is avoided, the tripping action of the self-resetting air switch is not timely, a large amount of heat is accumulated at the joint of the power equipment main body and the water inlet detection adapter wire in a short time, and the power equipment main body and the water inlet detection adapter wire are burnt on fire, so that the possibility of serious safety accidents occurs; when the power connector and the output adapter plug are inserted with a large amount of water seepage at the joint, the short circuit is triggered intermittently to accumulate heat of a loop, and the short circuit end is transferred by utilizing the thermal deformation effect of the bimetallic strip, so that the jump action speed of the self-resetting air switch can still be faster than the water seepage short circuit heat accumulation speed at the power connector and the output adapter plug even if the self-resetting air switch works for a long time, the power device can effectively jump and break the circuit for protection of the main body of the power device when water seepage is more, property loss is reduced, and the self-resetting air switch is suitable for effective power-off protection when large-scale equipment such as power service equipment is used.
2. According to the invention, the spring energy storage delay self-resetting mechanism is additionally arranged in the self-resetting long-distance telescopic ejector rod telescopic end in the tripping process, the spring energy storage delay self-resetting mechanism is driven to store energy in the long-stroke pushing process, the downward tripping spanner is delayed to reset and switch on, manual switching on of a worker is not needed, the device is more convenient to operate, and the device can work stably under the power service underground and in a strong magnetic field environment.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a diagram showing a connection relationship between a main body of an electric power device and a water inlet detection patch cord.
Fig. 3 is a schematic diagram of a structure at a in fig. 2.
Fig. 4 is a schematic structural diagram of a portion of a water inlet detection patch cord and a short-circuit end transfer device according to the present invention.
Fig. 5 is a schematic view of the second view structure of fig. 4.
Fig. 6 is a schematic diagram of the structure at B in fig. 5.
Fig. 7 is a schematic view of a self-resetting air switch portion of the present invention.
Fig. 8 is a schematic structural view.
Fig. 9 is a schematic view of the second view structure of fig. 7.
Fig. 10 is a flowchart of the operation of the present invention.
The reference numerals are: 1. an electric power device main body; 101. a power supply connector; 2. a water inlet detection patch cord; 201. a conduit; 202. inputting a patch plug; 203. outputting a patch plug; 2031. a ring groove; 204. a heat resistant sealed airbag; 2051. a first detection filament; 2052. a second detection filament; 3. a short-circuit side shifter; 301. a shielding box; 302. an electric control air valve; 303. a transfer electrode head; 304. bimetallic strips; 305. a deformation sensor patch; 4. a self-resetting air switch; 401. a package housing; 402. a wrench; 403. a central lever; 404. a first pull ring; 405. a lower conductive line; 406. a second pull ring; 407. a first spring; 408. a binding; 409. a second spring; 410. an upper conductive line; 4101. a conductive coil; 411. self-resetting long-distance telescopic ejector rod; 412. arc extinguishing grid plates; 413. an arc striking piece; 414. a protective housing; 4011. a transmission bar; 4012. a toothed plate; 4013. a first gear; 4014. a second gear; 4015. a spring; 4016. a multi-stage deceleration module; 4017. a third gear; 4018. a fourth gear; 4019. a one-way bearing.
Detailed Description
The embodiments of the present invention will be described more fully with reference to the drawings in the present invention, and the configurations of the structures described in the following embodiments are merely examples, and the safety protection self-power-off assembly and the protection method for electric power engineering service according to the present invention are not limited to the structures described in the following embodiments, but all other embodiments obtained by a person skilled in the art without making any creative effort are within the scope of the present invention.
The invention provides a safety protection self-power-off assembly for electric power engineering service, referring to fig. 1-6, which comprises an electric power equipment main body 1, wherein a water inlet detection adapter wire 2 is inserted on the electric power equipment main body 1, a short-circuit end transfer device 3 is inserted on the water inlet detection adapter wire 2, a self-reset air switch 4 is inserted on the short-circuit end transfer device 3, and the electric power equipment main body 1 is in transitional butt joint with the self-reset air switch 4 through the water inlet detection adapter wire 2 and the short-circuit end transfer device 3;
The power equipment main body 1 is embedded with a power connector 101, the water inlet detection patch cord 2 comprises a conduit 201, an input patch plug 202 and an output patch plug 203 are respectively butted at the input end and the output end of the conduit 201, the output patch plug 203 is in butt joint with the power connector 101 in an inserted way, the outer end wall of the output patch plug 203 is provided with a ring groove 2031, and a plurality of first detection filaments 2051 and second detection filaments 2052 which are distributed in a staggered way are fixedly sleeved in the ring groove 2031;
The short-circuit end translator 3 comprises a shielding box 301, a pair of switching electrode heads 303 which are symmetrically and electrically connected are fixedly installed in the shielding box 301, an input switching plug 202 is inserted into the shielding box 301 and is electrically connected with the switching electrode heads 303, a first detection filament 2051 and a second detection filament 2052 penetrate into an output switching plug 203 and are electrically connected with different electrode ends of the output switching plug 203, and a bimetallic strip 304 is fixedly installed at one electrode end of the switching electrode heads 303.
When the water inlet detection switching wire is used, the output switching plug 203 of the water inlet detection switching wire 2 is inserted and butted with the power connector 101 of the power equipment main body 1, an external power supply is smoothly supplied to the power equipment main body 1 through the self-resetting air switch 4, the short-circuit end shifter 3 and the water inlet detection switching wire 2, and when water is permeated from the inserted and connected position of the power connector 101 and the output switching plug 203 in the stable power supply operation process of the power equipment main body 1, the two conditions are treated differently;
In the first case, when water seepage is not more, in the process of penetrating at the joint of the power connector 101 and the output adapter 203, the water seepage is not more, the water seepage is inevitably fixedly sleeved in the annular groove 2031 formed by the output adapter 203, and the first detecting filaments 2051 and the second detecting filaments 2052 which are distributed in a staggered manner are firstly contacted, so that the first detecting filaments 2051 and the second detecting filaments 2052 which are distributed in a staggered manner from inside to outside are sequentially conducted, in the conduction process, a loop formed by the power connector 101, the water inlet detecting adapter wire 2, the short-circuit end transfer device 3 and the self-resetting air switch 4 is enabled to be in synchronous short circuit with the first detecting filaments 2051 and the second detecting filaments 2052 which are related to different electrode ends of the short-circuit end transfer device 3, a short-circuit high current flows on the complete short-circuit loop, the short-circuit loop is enabled to generate heat, and in the temperature rising process, before the temperature is damaged, the first detecting filaments 2051 and the second detecting filaments 2052 which are distributed in a staggered manner from inside to outside are not damaged, the short-circuit is enabled to be in the direct short-circuit, the water seepage is prevented from being directly caused by the short-circuit, the water seepage is prevented from being blown off, the water seepage is prevented from being directly by the short-circuit device, the short-circuit is prevented from being directly flowing in the short-circuit process, the part is broken, and the water is directly caused by the short-circuit is broken, the water is caused by the short-circuit device, and the water is directly, the water is blown and the water is directly is broken, the short-circuit is caused by the short-circuit condition, and the water is caused by the water and the water is caused by the water has the water accident, and has the water is caused by the water accident, and has high-phase phenomenon is caused by the condition;
In the second case, when the water seepage is more, the multiple first detecting filaments 2051 and the multiple second detecting filaments 2052 which are distributed in a staggered manner are sequentially conducted by more water seepage which is continuously permeated, in the process of triggering short circuit burning, when more water seepage is still unable to be evaporated, short circuit current heat generated in a loop is continuously accumulated in the short circuit process of each loop, intermittent accumulation is performed, so that short time continuous accumulation of a large amount of heat when the connection part of the output adapter plug 203 and the power connector 101 is directly connected with the short circuit of water seepage is avoided, the self-resetting air switch 4 works for a long time, the risk of circuit burning when the jump reaction is slow is avoided, meanwhile, in the process of intermittent accumulation of circuit heat, the bimetallic strip 304 which is related to the circuit is electrically connected with the adapter electrode head 303, the accumulated heat naturally also causes the bimetallic strip 304 to deform and contacts with the other electrode end of the adapter electrode head 303, the whole circuit loop is actively triggered to trip, and the self-resetting air switch 4 is actively triggered to break and protect the power equipment main body 1;
Even if the mechanical jump speed of the self-resetting air switch 4 is slower (but not slower than the water seepage speed), the short-circuit trigger end is converted from the position, close to the power connector 101 and the output adapter 203 of the power equipment main body 1, of the position, close to the position, where the power connector 101 and the output adapter 203 are inserted, of the short-circuit end transferer 3, far away from the power equipment main body 1, so that the possibility of the condition that the power connector 101 and the output adapter 203 burn out the power equipment main body 1 is avoided, the intermittent accumulation of the heat of a loop is realized by intermittent trigger short-circuit, the thermal deformation effect of the bimetallic strip 304 is utilized, the short-circuit end is transferred, the jump action speed of the self-resetting air switch 4 can still be faster than the water seepage short-circuit heat accumulation speed of the position of the power connector 101 and the output adapter 203 even if the self-resetting air switch 4 works for a long time, the jump action speed is still higher than the effective jump protection of the power equipment main body 1 when the water seepage is more, and property loss is reduced.
According to the invention, the self-outage assembly formed by the water inlet detection adapter wire 2, the short-circuit end shifter 3 and the self-resetting air switch 4 is matched for working, when a small amount of water seepage occurs at the joint of the power connector 101 and the output adapter plug 203, the small amount of water seepage is directly evaporated in a field detection fusing evaporation mode, the self-resetting air switch 4 is not required to trigger tripping and breaking protection, so that production interruption is avoided, meanwhile, a small amount of water seepage short circuit is avoided, the tripping action of the self-resetting air switch 4 is not timely, a large amount of heat is accumulated in a short time at the joint of the power equipment main body 1 and the water inlet detection adapter wire 2, and serious safety accidents are possibly caused by fire combustion; when the power connector 101 and the output adapter 203 are inserted with a large amount of water seepage at the joint, the short circuit is triggered intermittently to intermittently accumulate heat of a loop, and the short circuit end is transferred by utilizing the thermal deformation effect of the bimetallic strip 304, so that the jump action speed of the self-resetting air switch 4 can still be faster than the water seepage short circuit heat accumulation speed at the power connector 101 and the output adapter 203 even if the self-resetting air switch works for a long time, and the power device body 1 can be effectively jumped and broken for protection when the water seepage is more, property loss is reduced, and the self-resetting air switch is suitable for effective power-off protection when large-scale equipment such as power service equipment is used.
Further, referring to fig. 1 and 7-9, the self-resetting air switch 4 includes a package housing 401, a wrench 402 and a central lever 403 are rotatably mounted in the package housing 401, a first pull ring 404 is rotatably bridged between the wrench 402 and the central lever 403, a lower conductive wire 405 is disposed in the central lever 403, a second pull ring 406 is rotatably bridged between the lower conductive wire 405 and the central lever 403, a first spring 407 is bound between the second pull ring 406 and the central lever 403, a binding member 408 is fixedly connected in the package housing 401, a second spring 409 is bound between the binding member 408 and the wrench 402, an upper conductive wire 410 is fixedly clamped in the package housing 401, a self-resetting long-distance telescopic ejector rod 411 is fixedly mounted in the package housing, a conductive coil 4101 is wound on a conducting path of the upper conductive wire 410, the self-resetting long-distance telescopic ejector rod 411 is disposed in the conductive coil 4101, a telescopic end of the self-resetting long-distance telescopic ejector rod 411 is in contact with a top end of the central lever 403, and the self-resetting long-distance telescopic ejector rod 411 drives an energy storage delay self-resetting mechanism;
When the electric power device is used, a worker pushes the wrench 402 into place, the moment of the wrench 402 changes, the first pull ring 404 drives the central lever 403 to synchronously rotate, so that the central lever 403 is in a horizontal posture, the second spring 409 is stretched, the first spring 407 is compressed, the central lever 403 in the horizontal posture can drive the second pull ring 406 to finally stretch the lower conductive wire 405 to a position abutting against the upper conductive wire 410, the whole circuit is conducted, when a short circuit passes through, a strong electromagnetic field is generated in the conductive coil 4101 of the upper conductive wire 410, the self-resetting long-distance telescopic ejector rod 411 is pushed to move downwards, the central lever 403 is pushed downwards, after the moment of the wrench 402 changes, the action components can jump rapidly, the upper conductive wire 410 and the lower conductive wire 405 are driven to finish the separation tripping action in millisecond time, in the tripping process, the self-resetting long-distance telescopic ejector rod 411 can drive the spring energy storage mechanism to store energy in the long-stroke pushing process, the self-resetting mechanism is reset and the lower tripped 402 is reset and closed, the electric power device is more convenient to operate, and the electric power device can work in a stable environment in an underground environment.
Further, referring to fig. 1 and fig. 7-9, the spring energy storage delay self-resetting mechanism includes a driving bar 4011, a toothed plate 4012 is fixedly clamped at the bottom end of the driving bar 4011, a first gear 4013 is meshed with the side edge of the toothed plate 4012, a second gear 4014 is meshed with the outer end wall of the first gear 4013, a spring 4015 is fixedly clamped at the output end of the second gear 4014, a multi-stage speed reduction module 4016 is fixedly clamped at the output end of the spring 4015, a third gear 4017 is fixedly clamped at the output end of the multi-stage speed reduction module 4016, a fourth gear 4018 is meshed with the outer end wall of the third gear 4017, and the fourth gear 4018 is clamped on a wrench 402;
The specific action process of the spring energy storage time-delay self-resetting mechanism is that in the long-stroke pushing work of the telescopic end of the self-resetting long-distance telescopic ejector rod 411, after the self-resetting air switch 4 is pushed and tripped, on the premise of not influencing tripping action, a transmission belt 4011 and a toothed plate 4012 synchronously pushed along with the self-resetting long-distance telescopic ejector rod 411 synchronously move downwards, and then the toothed plate 4012 drives a first gear 4013 and a second gear 4014 to synchronously engage and rotate, so as to drive a spring 4015 to deform and store energy, after the energy storage is finished, a multistage deceleration module 4016 is used for decelerating and releasing the energy stored in the spring 4015, the specific deceleration effect is realized by the multistage deceleration module 4016, and the energy released by the deceleration is finally transferred to a spanner 402 through a third gear 4017 and a fourth gear 4018, and the spanner 402 is slowly rotated and is switched on in an ascending mode under the meshing transmission relation of the third gear 4017 and the fourth gear 4018, so that the spanner 402 can be automatically and time-delayed to reset after a period of tripping action, and the convenience of using the device is improved.
Further, referring to fig. 1 and fig. 7-9, a unidirectional bearing 4019 is fixedly clamped at a mounting position of a fourth gear 4018 on a wrench 402, and the fourth gear 4018 is fixedly clamped outside the unidirectional bearing 4019;
Through the unidirectional locking effect of the unidirectional bearing 4019, the meshing transmission of the third gear 4017 to the fourth gear 4018 can be smoothly transmitted to the wrench 402 through the unidirectional bearing 4019, the wrench 402 is switched on in a delayed manner, and during tripping, the downward rotation tripping action of the wrench 402 is not reversely transmitted to the fourth gear 4018 through the unidirectional bearing 4019, so that the reverse meshing transmission of the fourth gear 4018 to the third gear 4017 does not exist, the possibility that the parts such as the multistage speed reduction module 4016 and the spring 4015 which are related to the third gear 4017 prevent or slow down the rotation tripping action of the wrench 402 is caused, the spring energy storage delay self-resetting mechanism is ensured not to hinder the rotation tripping action of the wrench 402 when the wrench 402 is smoothly delayed for resetting action, the overlong separation time of the upper conductive wire 410 and the lower conductive wire 405 is avoided, a large amount of electric arcs are pulled out during the initial separation stage, the possibility of burning of the self-resetting air switch 4 is improved, and the use safety of the self-resetting air switch 4 is improved.
Further, referring to fig. 1 and fig. 7-9, the design size of the second gear 4014 is smaller than that of the first gear 4013, and a unidirectional bearing 4019 is also arranged at the connection part of the second gear 4014 and the spring 4015;
Through the design size arrangement of the selected second gear 4014 is smaller than the design size of the selected first gear 4013, the first gear 4013 and the second gear 4014 have a certain transmission ratio, when the first gear 4013 rotates in a semicircle or one circle, the second gear 4014 can drive the spring 4015 to smoothly rotate for a plurality of circles to store energy, the energy storage action is smoothly completed, the unidirectional bearing 4019 assembled at the joint of the second gear 4014 and the spring 4015 ensures that the rotation energy storage process of the toothed plate 4012, the first gear 4013 and the second gear 4014 on the spring 4015 can be smoothly carried out, the reverse energy release process of the spring 4015 is not blocked due to the reverse engagement of the second gear 4014, the first gear 4013 and the toothed plate 4012, and the energy storage release action of the spring delay self-resetting mechanism is further ensured to be orderly carried out.
Further, referring to fig. 1 and fig. 7-9, a plurality of arc extinguishing bars 412 are fixedly clamped in the package housing 401, arc striking plates 413 are fixedly connected to the bottom ends of the arc extinguishing bars 412, and the lower conductive wires 405 are fixedly connected with the arc striking plates 413;
in the process of smoothly tripping the wrench 402 and rapidly separating the lower conductive wire 405 and the upper conductive wire 410, the short-circuit large arc generated during separation is smoothly guided into the arc extinguishing grid piece 412 through the arc striking piece 413 to be extinguished, so that the use safety of the self-resetting air switch 4 is further improved.
Further, referring to fig. 1 and fig. 7-9, a protective housing 414 is fixedly mounted on the self-resetting air switch 4, and a first gear 4013, a second gear 4014, a spring 4015, a multi-stage speed reduction module 4016 and a third gear 4017 are all mounted in the protective housing 414;
To provide stable working support for the first gear 4013, the second gear 4014, the spring 4015, the multi-stage reduction module 4016, and the third gear 4017 through the protective housing 414.
Further, referring to fig. 1-6, an electric control air valve 302 is fixedly installed in a shielding box 301, a switching electrode head 303 is symmetrically and electrically connected to an input end and an output end of the electric control air valve 302, a deformation sensor patch 305 is fixedly adhered to a bimetallic strip 304, and signal transmission between the deformation sensor patch 305 and the electric control air valve 302 is completed in the shielding box 301 through a data line;
When the load of the power equipment main body 1 increases, the bimetallic strip 304 also can generate thermal deformation, short circuit can be actively triggered through the bimetallic strip 304 when the load of the power equipment main body 1 increases to generate heat, the power equipment main body 1 is actively powered off for protection, and a spring energy storage delay self-resetting mechanism in the self-resetting air switch 4 can smoothly store energy through an active triggering short circuit mode, energy is provided for active closing, and the deformation state of the bimetallic strip 304 by the deformation sensor patch 305 is transmitted back to the electric control air valve 302 through a data line, so that real-time recording is performed.
Further, referring to fig. 1-6, a miniature fire extinguishing air tank is arranged in the electric control air valve 302, the miniature fire extinguishing air tank is controlled to be opened and closed by the electric control air valve 302, a heat-resistant sealing air bag 204 is sleeved in a ring groove 2031 formed in the output adapter 203, a first detecting thread 2051 and a second detecting thread 2052 are adhered and fixed on the heat-resistant sealing air bag 204, and the heat-resistant sealing air bag 204 is communicated with the fire extinguishing air tank arranged in the electric control air valve 302 through an air pipe synchronously penetrating through the conduit 201;
In the working process of supplying power to the electric equipment main body 1 through an external power supply, the electric control air valve 302 is synchronously powered, the deformation state of the deformation sensor patch 305 is recorded in real time through the electric control air valve 302, when deformation occurs, namely, the miniature fire extinguishing air tank arranged in the electric equipment main body 1 is controlled to be opened through the electric control air valve 302, the heat-resistant sealing air bag 204 is inflated to prevent external water from continuously penetrating into the power supply joint 101 and the connecting position of the output adapter 203, the bimetallic strip 304 is deformed and overlapped at different electrode ends of the adapter electrode head 303, before triggering a short-circuit action, namely, the external water seepage is insulated and blocked in advance, the possibility of the situation that an external worker is damaged by water seepage and electric leakage electric shock is avoided before tripping protection of the self-resetting air switch 4 is carried out, the electric leakage protection effect of the on-site worker by the self-outage assembly is further improved, the electric shock protection effect of the continuous water seepage is also avoided, the electric leakage damage to the connecting position of the water inlet detection line 2 and the electric equipment main body 1 and the circuit structure in the electric equipment main body 1 in the subsequent use process is avoided, and when the flame is burnt at the position of the short-circuit end transfer device 3 where the short-circuit end of the combustion explosion is located, the stored in the miniature fire transfer device is not in the fire extinguishing device is in the fire, the fire extinguishing state, and the explosion state can be prevented from spreading to the fire protection device 1, and the fire protection device is in the fire protection state, and the explosion state is prevented.
Further, referring to fig. 1-10, a protection method for a safety protection self-powered-off component for power engineering service includes the following steps:
S1, power supply work: the power equipment main body 1 is stably powered by a self-powered off assembly formed by the water inlet detection patch cord 2, the short-circuit end transfer device 3 and the self-resetting air switch 4;
s2, water inlet and power off: the water inflow detection patch cord 2, the short-circuit end shifter 3 and the self-resetting air switch 4 are matched to work, so that different water seepage at the joint of the water inflow detection patch cord 2 and the power equipment main body 1 are correspondingly treated, and the power equipment main body 1 is effectively protected on the premise of ensuring stable production of the power equipment main body 1;
S3, overload power-off: the thermal deformation finished by the bimetallic strip 304 actively triggers the short-circuit effect, so that not only can the water inlet power-off protection effect be realized, but also the overload power-off protection effect can be realized;
S4, actively resetting: the self-resetting air switch 4 is tripped and power-off protected through a spring energy storage time-delay self-resetting mechanism additionally arranged in the self-resetting air switch 4, and a mechanical tripping component is actively time-delay switched on;
S5, insulating protection: the deformation action of the bimetallic strip 304 is recorded in real time through the electric control air valve 302 and the deformation sensor patch 305, and when the deformation action occurs, the electric control air valve 302 controls the heat-resistant sealing air bag 204 at the joint of the electric power equipment main body 1 and the water inlet detection patch cord 2 to actively supply air and expand, prevent external water seepage, and insulate and protect the joint of the electric power equipment main body 1 and the water inlet detection patch cord 2.
The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
Secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The utility model provides a power engineering service is with safety protection from outage subassembly, includes power equipment main part (1), its characterized in that: the electric power equipment main body (1) is provided with a water inlet detection switching wire (2) in an inserted mode, the water inlet detection switching wire (2) is provided with a short-circuit end transfer device (3) in an inserted mode, the short-circuit end transfer device (3) is provided with a self-resetting air switch (4) in an inserted mode, and the electric power equipment main body (1) is in transitional butt joint with the self-resetting air switch (4) through the water inlet detection switching wire (2) and the short-circuit end transfer device (3);
The power equipment comprises a power equipment main body (1), wherein a power connector (101) is embedded in the power equipment main body, a water inlet detection patch cord (2) comprises a conduit (201), an input patch plug (202) and an output patch plug (203) are respectively connected with an input end and an output end of the conduit (201), the output patch plug (203) is inserted and connected with the power connector (101), an annular groove (2031) is formed in the outer end wall of the output patch plug (203), and a plurality of first detection filaments (2051) and second detection filaments (2052) which are distributed in a staggered mode are fixedly sleeved in the annular groove (2031);
the short-circuit end transfer device (3) comprises a shielding box (301), a pair of switching electrode heads (303) which are symmetrically and electrically connected are fixedly arranged in the shielding box (301), an input switching plug (202) is inserted into the shielding box (301) and is electrically connected with the switching electrode heads (303), first detection filaments (2051) and second detection filaments (2052) penetrate into an output switching plug (203) and are electrically connected with different electrode ends of the output switching plug (203), and a bimetallic strip (304) is fixedly arranged at one electrode end of the switching electrode heads (303);
The self-resetting air switch (4) comprises a packaging shell (401), a spanner (402) and a central lever (403) are rotatably arranged in the packaging shell (401), a first pull ring (404) is rotatably connected between the spanner (402) and the central lever (403) in a bridging manner, a lower conductive wire (405) is arranged in the central lever (403), a second pull ring (406) is rotatably connected between the lower conductive wire (405) and the central lever (403) in a bridging manner, a first spring (407) is bound between the second pull ring (406) and the central lever (403), a binding piece (408) is fixedly connected in the packaging shell (401), a second spring (409) is bound between the binding piece (408) and the spanner (402), an upper conductive wire (410) and a self-resetting long-distance telescopic ejector rod (411) are fixedly clamped in the packaging shell (401), a conductive coil (1) is arranged on a conducting path in a winding manner, the self-resetting long-distance telescopic ejector rod (411) is arranged in the conductive coil (4101), and a self-resetting telescopic rod (411) is in contact with a self-resetting telescopic rod (403) and a self-telescopic rod (403) is in a telescopic rod, and a self-telescopic rod is in a telescopic rod (driving end, and a self-telescopic rod is in a telescopic rod is in contact with a telescopic rod (403) and a self-telescopic rod is in a driving end;
The spring energy storage time-delay self-resetting mechanism comprises a transmission bar (4011), a toothed plate (4012) is fixedly clamped at the bottom end of the transmission bar (4011), a first gear (4013) is meshed with the side edge of the toothed plate (4012), a second gear (4014) is meshed with the outer end wall of the first gear (4013), a spring (4015) is fixedly clamped at the output end of the second gear (4014), a multi-stage speed reduction module (4016) is fixedly clamped at the output end of the spring (4015), a third gear (4017) is fixedly clamped at the output end of the multi-stage speed reduction module (4016), a fourth gear (4018) is meshed with the outer end wall of the third gear (4017), and the fourth gear (4018) is clamped on a spanner (402).
2. A safety protection self-powered-off assembly for electrical engineering services according to claim 1, wherein: the wrench (402) is fixedly clamped with a one-way bearing (4019) at the mounting position of a fourth gear (4018), and the fourth gear (4018) is fixedly clamped outside the one-way bearing (4019).
3. A safety protection self-powered-off assembly for electrical engineering services according to claim 1, wherein: the design size of the second gear (4014) is smaller than that of the first gear (4013), and a one-way bearing (4019) is also arranged at the joint of the second gear (4014) and the spring (4015).
4. A safety protection self-powered-off assembly for electrical engineering services according to claim 1, wherein: the packaging shell (401) is internally fixedly clamped with a plurality of arc extinguishing grid plates (412) which are uniformly arranged, an arc striking plate (413) is fixedly connected to the bottom end of each arc extinguishing grid plate (412), and the lower conductive wire (405) is fixedly connected with the arc striking plate (413).
5. A safety protection self-powered-off assembly for electrical engineering services according to claim 1, wherein: the self-resetting air switch (4) is fixedly provided with a protective shell (414), and the first gear (4013), the second gear (4014), the spring (4015), the multi-stage speed reduction module (4016) and the third gear (4017) are all arranged in the protective shell (414).
6. A safety protection self-powered-off assembly for electrical engineering services according to claim 1, wherein: an electric control air valve (302) is fixedly installed in the shielding box (301), the switching electrode heads (303) are symmetrically and electrically connected to the input end and the output end of the electric control air valve (302), deformation sensor patches (305) are fixedly adhered to the bimetallic strip (304), and signal transmission between the deformation sensor patches (305) and the electric control air valve (302) is completed in the shielding box (301) through data lines.
7. The power engineering service safety protection self-powered off assembly according to claim 6, wherein: be provided with miniature fire-extinguishing gas jar in automatically controlled pneumatic valve (302), miniature fire-extinguishing gas jar is opened by automatically controlled pneumatic valve (302) control and is closed, annular (2031) endotheca that output adapter plug (203) were seted up is equipped with heat-resisting sealed gasbag (204), first detection filament (2051) and second detection filament (2052) bond and are fixed in on heat-resisting sealed gasbag (204), heat-resisting sealed gasbag (204) are through the trachea that runs through in conduit (201) and fire-extinguishing gas jar that sets up in automatically controlled pneumatic valve (302) each other.
8. The protection method of a safety protection self-powered-off assembly for electric power engineering service according to any one of claims 1 to 7, wherein: the method comprises the following steps:
S1, power supply work: the power equipment main body (1) is stably powered by a self-outage assembly formed by the water inlet detection patch cord (2), the short-circuit end transfer device (3) and the self-resetting air switch (4);
S2, water inlet and power off: the water seepage of different water amounts at the joint of the water inlet detection patch cord (2) and the power equipment main body (1) is correspondingly treated through the cooperation of the components on the water inlet detection patch cord (2), the short-circuit end transfer device (3) and the self-resetting air switch (4), and the power equipment main body (1) is effectively protected on the premise of ensuring the stable production of the power equipment main body (1);
s3, overload power-off: the thermal deformation finished by the bimetallic strip (304) actively triggers the short-circuit effect, so that not only can the water inlet power-off protection effect be realized, but also the overload power-off protection effect can be realized;
S4, actively resetting: the self-resetting air switch (4) is tripped and power-off protected through a spring energy storage delay self-resetting mechanism which is additionally arranged in the self-resetting air switch (4), and a mechanical tripping component is actively delayed to be switched on;
s5, insulating protection: the deformation action of the bimetallic strip (304) is recorded in real time through the electric control air valve (302) and the deformation sensor patch (305), and when the deformation action occurs, the electric control air valve (302) controls the miniature fire extinguishing air tank to actively supply air and expand the heat-resistant sealing air bag (204) at the joint of the electric equipment main body (1) and the water inlet detection adapter wire (2), so as to prevent external water seepage, and insulate and protect the joint of the electric equipment main body (1) and the water inlet detection adapter wire (2).
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