CN115531771A - Leakage protector with overvoltage protection function - Google Patents
Leakage protector with overvoltage protection function Download PDFInfo
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- CN115531771A CN115531771A CN202210564719.2A CN202210564719A CN115531771A CN 115531771 A CN115531771 A CN 115531771A CN 202210564719 A CN202210564719 A CN 202210564719A CN 115531771 A CN115531771 A CN 115531771A
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- protector
- ejector rod
- air bag
- protection function
- overvoltage protection
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- 230000001012 protector Effects 0.000 title claims abstract description 137
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000003860 storage Methods 0.000 claims abstract description 47
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 30
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 30
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 9
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000005381 potential energy Methods 0.000 claims description 6
- 238000006748 scratching Methods 0.000 claims description 2
- 230000002393 scratching effect Effects 0.000 claims description 2
- 239000003063 flame retardant Substances 0.000 abstract description 69
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 46
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000008602 contraction Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 58
- 230000000694 effects Effects 0.000 description 7
- 230000035882 stress Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C2/00—Fire prevention or containment
- A62C2/04—Removing or cutting-off the supply of inflammable material
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
The invention belongs to the technical field of flame retardance of leakage protectors, and particularly relates to a leakage protector with an overvoltage protection function, which comprises a protector and a movable plate, wherein an ejector rod is arranged on the inner side of a storage box, a circulation hole is formed in the ejector rod, the circulation hole is communicated with the interior of the protector, an air bag is arranged between the outer side of the ejector rod and the inner wall of the storage box, a cutting edge is arranged at the position, adjacent to the air bag, of the circulation hole in the ejector rod, and carbon dioxide gas is filled in the air bag; according to the invention, the phenomenon of expansion and expansion is caused by expansion and contraction of the air bag in the storage box, and meanwhile, the air bag gradually draws close to the ejector rod under the blocking effect of the storage box, and then the air bag is scratched by the cutting edge on the ejector rod, so that carbon dioxide in the air bag enters the non-flame-retardant area in the protector through the circulation hole in the ejector rod, and the carbon dioxide extinguishes the combustion area in the protector.
Description
Technical Field
The invention belongs to the technical field of flame retardance of leakage protectors, and particularly relates to a leakage protector with an overvoltage protection function.
Background
A leakage protector, a leakage switch for short, mainly used for protecting the electric shock of a person with fatal danger when equipment has a leakage fault, has the protection functions of overvoltage, short circuit and the like, can be used for protecting the overload and short circuit of a circuit or a motor, and can also be used for the infrequent switching starting of the circuit under the normal condition, and is divided into a leakage protection relay, a leakage protection switch and a leakage protection socket.
The technical scheme includes that the flame-retardant technical scheme comprises a fixed shell, four annular clamping frames positioned on two sides of the fixed shell are fixedly installed at the bottom of an inner cavity of the fixed shell, a flame-retardant gas cylinder is clamped inside the annular clamping frames, a top rod is movably sleeved on the top of the flame-retardant gas cylinder, a sealing ring positioned inside the flame-retardant gas cylinder is fixedly installed on the outer portion of the top rod, an electromagnet positioned below a movable connecting rod is fixedly installed on the side face of the inner cavity of the fixed shell, a metal ring matched with the electromagnet is fixedly installed in the middle of the bottom end of the movable connecting rod, a temperature controller positioned below a fixed shaft is fixedly installed on the side face of the inner cavity of the fixed shell, and exhaust holes uniformly distributed in the left side and the right side of the fixed shell are formed; temperature among the temperature controller detection earth-leakage protector is passed through to above-mentioned patent, can trigger the electro-magnet circular telegram after reaching appointed temperature, then open fire-retardant cylinder, make fire-retardant cylinder blowout fire-retardant gas enter into earth-leakage protector inside and prevent fires, but above-mentioned patent still has a defect, fire-retardant gas in the above-mentioned patent is after the blowout, can have partial gas to flow out fast through the exhaust hole and can't reach good fire-retardant effect, earth-leakage protector can break off the circuit because inside high temperature when the burning appears simultaneously, thereby lead to the unable normal circular telegram operation of temperature controller and electro-magnet, make fire-retardant cylinder can't open and put out a fire.
In view of the above, the present invention provides a leakage protector with an overvoltage protection function to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art, and solve the problems that in the prior art, flame retardant gas is sprayed out through a flame retardant gas bottle for flame retarding, partial gas can not flow out quickly through a vent hole to achieve a good flame retardant effect, and meanwhile, a circuit can be interrupted when a leakage protector burns due to high internal temperature, so that a temperature controller and an electromagnet cannot be powered on normally to operate, and the flame retardant gas bottle cannot be opened for fire extinguishing.
The technical scheme adopted by the invention for solving the technical problems is as follows: the leakage protector with the overvoltage protection function comprises a protector and a movable plate, wherein four right-angle corners of the movable plate are movably connected with the left side of the protector, and a driving assembly is arranged inside the protector and inside the right side of the movable plate;
the storage box is arranged inside the left side of the protector and above the driving assembly, the inner side of the storage box is fixedly connected with the inside of the protector, an ejector rod is arranged on the inner side of the storage box, a circulation hole is formed in the ejector rod, the circulation hole is communicated with the inside of the protector, an air bag is arranged between the outer side of the ejector rod and the inner wall of the storage box, a cutting edge is arranged in the circulation hole in the ejector rod and adjacent to the air bag, a gap exists between the ejector rod and the air bag, the cutting edge of the ejector rod is used for scratching the air bag, and carbon dioxide gas is filled in the air bag.
Preferably, the ejector rod is close to the inside of the protector and is conical in shape with the same height, and the ejector rod is far away from the inside of the protector and is arc-shaped in shape with the same height.
Preferably, the inner diameter of the flow hole of the ejector rod close to the non-flame-retardant area in the protector is larger than the inner diameter of the flow hole in the ejector rod far from the non-flame-retardant area in the protector and at the same height.
Preferably, the gas holder sets up in drive assembly's upper left side, the inside sliding connection of gas holder has the push rod, the outside cover of push rod has taken a photograph reset spring, the upper end of gas holder is provided with the connecting pipe, the upper end of connecting pipe and the inside intercommunication of gasbag, the gas holder is provided with the same gas with the gasbag is inside.
Preferably, be provided with the runner among the drive assembly, the centre of a circle of runner is rotated with the inboard of protector and is connected, the outside below of runner rotates and is connected with the connecting band, the lower extreme of push rod and the upper left end fixed connection of connecting band, under the initial condition reset spring is dragged by the connecting band and is in compression state.
Preferably, the connecting belt is made of polyethylene material.
Preferably, the upper right end of connecting band is provided with a plurality of detection hooks, and detects the inner wall evenly distributed of hook along the protector.
Preferably, the elastic potential energy of the maximum compression distance of the return spring sleeved outside the push rod is greater than the air pressure of the air storage tank filled with air.
Preferably, the air storage tank is movably connected with the interior of the protector, and a detachable plate is arranged on the left side of the storage box.
Preferably, a pressure sensor and an alarm are arranged above the inside of the detection hook and in the inner wall of the protector, and the pressure sensor and the alarm are controlled by an independent circuit.
The invention has the following beneficial effects:
1. according to the leakage protector with the overvoltage protection function, the phenomenon of expansion and increase occurs due to expansion with heat and contraction with cold of the air bag in the storage box, meanwhile, the air bag gradually draws close to the ejector rod under the blocking effect of the storage box, the upper edge of the ejector rod is provided with the cutting edge, and then the cutting edge on the ejector rod cuts the air bag, so that carbon dioxide gas in the air bag enters the non-flame-retardant area inside the protector through the circulation hole inside the ejector rod, the carbon dioxide gas extinguishes the combustion area inside the protector, and safety accidents caused by further expansion of fire are avoided.
2. According to the leakage protector with the overvoltage protection function, the ejector rod of the non-flame-retardant area in the protector is conical, so that carbon dioxide in the air bag directly reaches the non-flame-retardant area through the circulation hole in the ejector rod, the ejector rod far away from the non-flame-retardant area in the protector is arc-shaped, the arc direction of the arc ejector rod points to the non-flame-retardant area, the carbon dioxide in the air bag reaches the non-flame-retardant area in the protector through the arc ejector rod, the concentration degree of carbon dioxide is improved, the carbon dioxide in the air bag is intensively circulated to the non-flame-retardant area in the protector, and the fire extinguishing effect of the protector is improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the protector of the present invention;
FIG. 2 is an internal perspective view of the protector of the present invention;
FIG. 3 is a schematic front view of the protector of the present invention;
FIG. 4 is a partial cut-away perspective view of the interior of the protector of the present invention;
FIG. 5 is a schematic view of the direction A in FIG. 4;
FIG. 6 is a cross-sectional view of the ejector pin in the storage case of FIG. 5 in different states at different positions according to a specific example;
fig. 7 is a sectional view of the jack in the storage box in fig. 5 in a different state at different positions according to another specific example.
In the figure: 1. a protector; 2. a movable plate; 3. a drive assembly; 31. a rotating wheel; 32. a connecting belt; 33. a detection hook; 4. a gas storage tank; 41. a push rod; 42. a return spring; 43. a connecting pipe; 5. a storage box; 51. a top rod; 52. a flow-through hole; 53. a detachable plate; 6. an air bag.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 7:
the first embodiment is as follows: the leakage protector with the overvoltage protection function comprises a protector 1 and a movable plate 2, wherein four right-angle corners of the movable plate 2 are movably connected with the left side of the protector 1, and a driving assembly 3 is arranged inside the protector 1 and on the right side of the movable plate 2;
the storage box 5 is arranged inside the left side of the protector 1 and above the driving assembly 3, the inner side of the storage box 5 is fixedly connected with the inside of the protector 1, a top rod 51 is arranged inside the storage box 5, a circulation hole 52 is formed in the top rod 51, the circulation hole 52 is communicated with the inside of the protector 1, an air bag 6 is arranged between the outer side of the top rod 51 and the inner wall of the storage box 5, a cutting edge is arranged at a position, adjacent to the air bag 6, of the circulation hole 52 in the top rod 51, a gap is formed between the top rod 51 and the air bag 6, the cutting edge of the top rod 51 is used for cutting the air bag 6, and the air bag 6 is filled with carbon dioxide gas.
When the protector works, the areas which cannot realize the flame-retardant function, such as coil assemblies and the like containing insulating materials, in the protector 1 are called non-flame-retardant areas, when the protector 1 works normally, the non-flame-retardant working areas in the protector 1 are positioned on the right side of the ejector rod 51, and the circulation hole 52 in the ejector rod 51 is communicated with the non-flame-retardant working areas, when electric leakage or overvoltage occurs in a circuit, elements in the protector 1 work to disconnect the circuit, so that the operation safety of the whole circuit is protected, meanwhile, after the protector 1 runs for a long time, some dust can permeate into the protector 1, and local aging occurs when an internal circuit runs for a long time, when the current or voltage is higher in the protector 1, the high temperature generated in the protector can cause the combustion in the non-flame-retardant working areas in the protector 1, a gap exists between the air bag 6 in the protector 1 and the ejector rod 51 when the protector 1 works normally, at the moment, the air bag 6 in the storage box 5 expands due to cold due to heat, so that the expansion and the expansion of the air bag 6 gradually approaches the direction of the ejector rod 51, and the air bag 6 breaks the cutting edge of the air in the air bag 6, thereby further preventing the fire-retardant gas from entering the flame-retardant working area in the protector 1, and preventing the fire-retardant working area from further preventing the fire-retardant working environment that the fire-retardant working area of the existing protector 1 and preventing equipment from being damaged by the fire-retardant equipment, and preventing equipment from being damaged by the fire-caused by the fire-retardant working area, and preventing the fire-caused by the fire-retardant working area, and preventing equipment.
As a specific embodiment of the present invention, the shape of the top bar 51 close to the non-flame-retardant region inside the protector 1 and having the same height is tapered, and the shape of the top bar 51 far from the non-flame-retardant region inside the protector 1 and having the same height is arc-shaped.
During operation, gasbag 6 appears the inflation because protector 1 inside burning high temperature, and by the back of cutting along on the ejector pin 51, ejector pin 51 shape that is close to protector 1 inside non-fire-retardant region this moment is the toper, make carbon dioxide gas pass through the direct non-fire-retardant region of opening 52 in the ejector pin 51 in the gasbag 6, receive the inside spatial layout of protector 1 simultaneously, ejector pin 51 of keeping away from protector 1 inside non-fire-retardant region is the arc, and arc ejector pin 51 arc line direction directional non-fire-retardant region, make carbon dioxide gas in gasbag 6 reach protector 1 inside non-fire-retardant region through arc ejector pin 51, thereby carbon dioxide's concentration degree has been improved, make carbon dioxide gas in gasbag 6 more can concentrate to the non-fire-retardant regional circulation in protector 1, the fire extinguishing effect in protector 1 has been improved.
The air storage tank 4 is arranged at the upper left of the driving assembly 3, a push rod 41 is connected to the inside of the air storage tank 4 in a sliding mode, a return spring 42 is sleeved on the outer side of the push rod 41, a connecting pipe 43 is arranged at the upper end of the air storage tank 4, the upper end of the connecting pipe 43 is communicated with the inside of the air bag 6, and the air storage tank 4 is provided with the same gas as the inside of the air bag 6; the same carbon dioxide gas in the gasbag 6 is also stored in the gas holder 4, and the gas holder 4 can carry out supplementary gas in the gasbag 6 through connecting pipe 43 for can obtain the supplementary gas in the gas holder 4 after 6 gasbags are lacerated, thereby improve the carbon dioxide content in the protector 1, when making 1 inside burning that appears, can provide sufficient guarantee, avoided the intensity of a fire to spread and initiate the incident.
A rotating wheel 31 is arranged in the driving assembly 3, the circle center of the rotating wheel 31 is rotatably connected with the inner side of the protector 1, a connecting belt 32 is rotatably connected below the outer side of the rotating wheel 31, the lower end of the push rod 41 is fixedly connected with the upper left end of the connecting belt 32, and the connecting belt 32 is in a tightened state in an initial state; connecting band 32 among the drive assembly 3 can slide at the downside of runner 31, the lower extreme of push rod 41 and the upper left end fixed connection of connecting band 32 simultaneously, it moves down to make the connecting band 32 slide and to drive push rod 41, thereby can store more gas in letting the gas holder 4, and make push rod 41 compress reset spring 42, thereby connecting band 32 is when the inside non-fire-retardant regional conflagration of protector 1, fracture or extension appear in the connecting band 32, thereby push rod 41 loses the pulling force of connecting band 32, reset spring 42 after the compression releases elastic potential energy, make push rod 41 promote the gas in the gas holder 4 and enter into gasbag 6 and supply.
The connecting band 32 is made of polyethylene material; the polyethylene material is widely applied to industrial production with excellent mechanical property, processing property, chemical resistance and the like, and like other high polymer materials, the state and the property of the polyethylene material change along with the change of the environmental temperature, according to experimental data in the prior art, the polyethylene material shows that the rigidity is reduced and the tensile yield stress is reduced along with the rise of the temperature, so that when a non-flame-retardant area in the protector 1 burns, the generated high temperature is conducted to the rotating wheel 31, the rotating wheel 31 conducts the high temperature to the connecting belt 32, the tensile yield stress of the polyethylene material is reduced, the connecting belt 32 becomes soft and extends at the high temperature, then the compressed return spring 42 drives the push rod 41 to move upwards, and the gas in the gas storage tank 4 is pushed into the gas bag 6 for supplement.
The upper right end of the connecting belt 32 is provided with a plurality of detection hooks 33, and the detection hooks 33 are uniformly distributed along the inner wall of the protector 1; when protector 1 is used for different operational environment, the inside working part of protector 1 appears changing, and when the regional increase of inside non-fire-retardant, according to the regional area of non-fire-retardant, then the position of adjustment connecting band 32 on detecting hook 33, thereby connecting band 32 can stimulate push rod 41 and move down further, make and to store more gas in the gas holder 4, when the burning appears in protector 1 inside, gas holder 4 can supply more gas, avoided because of the regional increase of the inside non-fire-retardant of protector 1, and the not enough condition of carbon dioxide gas appears.
The elastic potential energy of the maximum compression distance of the return spring 42 sleeved outside the push rod 41 is greater than the air pressure of the air storage tank 4 filled with air; because the elastic potential energy of the maximum compression distance of the return spring 42 sleeved outside the push rod 41 is greater than the air pressure of the air storage tank 4 filled with gas, according to the area of the non-flame-retardant area inside the protector 1, after the air storage tank 4 is completely filled with carbon dioxide, the elastic potential energy generated after the return spring 42 is completely compressed can overcome the air pressure of the air storage tank 4 filled with gas completely, and the return spring 42 can operate normally, so that when the non-flame-retardant area in the protector 1 burns, the return spring 42 can drive the push rod 41 to operate, and the gas in the air storage tank 4 supplements the gas in the air bag 6 and participates in fire extinguishing.
The gas storage tank 4 is movably connected with the inside of the protector 1, and a detachable plate 53 is arranged at the left side of the storage tank 5; gas holder 4 and protector 1's inside swing joint, make gas holder 4 dismantle in protector 1, thereby satisfy daily maintenance and carry out gaseous supplementary in to gas holder 4, the left side of storage box 5 is provided with can dismantle board 53 simultaneously, make things convenient for gasbag 6 to install in the inside of storage box 5, and gasbag 6 when not using for a long time and need regular maintenance, take off can dismantle board 53 through dismantling the screw, just can change gasbag 6, the condition that ageing damage appears in gasbag 6 long-term not using the top layer, guaranteed that gas holder 4 and gasbag 6 can leave in protector 1 with the optimum all the time, when having avoided follow-up fire accident to take place, gas holder 4 and gasbag 6 can't normally work.
A pressure sensor and an alarm are arranged above the inside of the detection hook 33 and in the inner wall of the protector 1, and the pressure sensor and the alarm are controlled by an independent circuit; when the inside non-fire-retardant region of protector 1 burns, polyethylene material's connecting band 32 receives high temperature and tensile yield stress reduces, the connecting band 32 can appear becoming soft and extending, reset spring 42 drives push rod 41 and shifts up simultaneously, and drive connecting band 32 upper left end and shift up, when connecting band 32 is stretched to the yield stress limit by push rod 41, the fracture appears in connecting band 32, thereby detect hook 33 and lose the pulling force of connecting band 32, it can not detect pressure to detect the inside pressure sensor of hook 33, thereby trigger the alarm and open and carry out the early warning, make personnel in time discover, and corresponding processing carries out, secondary accident has been avoided, because pressure sensor and alarm are by independent circuit control, thereby during the inside conflagration of protector 1, pressure sensor and alarm still can the independent operation.
Example two:
the difference between the second embodiment and the first embodiment is that the inner diameter of the flow hole 52 of the top rod 51 near the non-flame-retardant area inside the protector 1 is larger than the inner diameter of the flow hole 52 inside the top rod 51 far from the non-flame-retardant area inside the protector 1 and at the same height.
Because the inner diameter of the ejector rod 51 close to the non-flame-retardant area in the protector 1 is larger than the inner diameter of the ejector rod 51 far away from the non-flame-retardant area in the protector 1 and with the same height, when the airbag 6 is lacerated by the cutting edge on the upper edge of the ejector rod 51, the ejector rod 51 close to the flame-retardant area and with larger diameter can pass more carbon dioxide gas, and meanwhile, the circulation speed of the carbon dioxide gas far away from the non-flame-retardant area in the protector 1 at the ejector rod 51 with small inner diameter is reduced, so that more carbon dioxide gas can flow out of the circulation hole 52 in the ejector rod 51 with large diameter close to the non-flame-retardant area, the fire extinguishing effect of the non-flame-retardant area is improved, and meanwhile, partial carbon dioxide can flow out of the circulation hole 52 in the ejector rod 51 with small inner diameter, so that the internal flame-retardant area can also be partially protected, and the balance of internal anti-combustion protection is improved.
The specific working process is as follows:
when the protector works, the protector 1 works normally, a non-flame-retardant working area inside the protector 1 is positioned on the right side of the ejector rod 51, a circulation hole 52 inside the ejector rod 51 is communicated with the non-flame-retardant working area, when electric leakage or overvoltage occurs in a circuit, elements inside the protector 1 work to disconnect the circuit, thereby protecting the operation safety of the whole circuit, meanwhile, after the protector 1 runs for a long time, some dust can permeate into the protector 1, and local aging occurs when an internal circuit runs for a long time, when the current or voltage passing through the inside of the protector 1 is higher, the high temperature generated inside can cause the non-flame-retardant area inside the protector 1 to burn, at the moment, the air bag 6 in the storage box 5 expands due to heat and contracts, thereby causing the phenomenon of expansion and increase, meanwhile, the air bag 6 gradually draws close to the direction of the ejector rod 51 under the blocking effect of the storage box 5, and a cutting edge is arranged on the upper edge of the ejector rod 51, then the air bag 6 is lacerated by the cutting edge on the upper edge of the mandril 51, so that the carbon dioxide in the air bag 6 enters the non-flame-retardant area inside the protector 1 through the circulation hole 52 inside the mandril 51, the carbon dioxide extinguishes the combustion area inside the protector 1, meanwhile, the space layout inside the protector 1 is controlled, the mandril 51 far away from the non-flame-retardant area inside the protector 1 is arc-shaped, the arc direction of the arc mandril 51 points to the non-flame-retardant area, the carbon dioxide in the air bag 6 reaches the non-flame-retardant area inside the protector 1 through the arc mandril 51, thereby improving the concentration degree of the carbon dioxide, leading the carbon dioxide in the air bag 6 to be more intensively circulated to the non-flame-retardant area inside the protector 1, avoiding the safety accident caused by further expansion of fire, and simultaneously, the air storage tank 4 can supplement air to the air bag 6 through the connecting pipe 43, make 6 supplementary gases that can obtain in the gas holder 4 after being lacerated, improved the carbon dioxide content in the protector 1, promoted the fire extinguishing effect.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a take earth-leakage protector of overvoltage protection function, includes protector (1) and fly leaf (2), its characterized in that: four right-angle positions of the movable plate (2) are movably connected with the left side of the protector (1), and a driving assembly (3) is arranged inside the protector (1) and inside the right side of the movable plate (2);
the storage box (5) is arranged inside the left side of the protector (1) and above the driving assembly (3), the inner side of the storage box (5) is fixedly connected with the inside of the protector (1), an ejector rod (51) is arranged inside the storage box (5), a circulation hole (52) is formed in the ejector rod (51), the circulation hole (52) is communicated with the inside of the protector (1), an air bag (6) is arranged between the outer side of the ejector rod (51) and the inner wall of the storage box (5), a cutting edge is formed in the circulation hole (52) inside the ejector rod (51) and in the position adjacent to the air bag (6), a gap exists between the ejector rod (51) and the air bag (6), the cutting edge of the ejector rod (51) is used for scratching the air bag (6), and carbon dioxide gas is filled in the air bag (6).
2. A earth leakage protector with overvoltage protection function according to claim 1, characterized in that: the ejector rod (51) is close to the inside of the protector (1) and is conical in shape with the same height, and the ejector rod (51) is far away from the inside of the protector (1) and is arc-shaped in shape with the same height.
3. A earth leakage protector with overvoltage protection function according to claim 1, characterized in that: the inner diameter of the circulation hole (52) of the ejector rod (51) close to the interior of the protector (1) is larger than the inner diameter of the circulation hole (52) of the ejector rod (51) far away from the interior of the protector (1) and at the same height.
4. A earth leakage protector with overvoltage protection function according to claim 1, characterized in that: the utility model discloses a drive assembly, including drive assembly (3), gas holder (4), the inside sliding connection of gas holder (4) has push rod (41), the outside swing joint of push rod (41) has reset spring (42), the upper end of gas holder (4) is provided with connecting pipe (43), the upper end of connecting pipe (43) and the inside intercommunication of gasbag (6), gas holder (4) are provided with the same gas with gasbag (6) inside.
5. A leakage protector with overvoltage protection function according to claim 1 or 4, characterized in that: be provided with runner (31) in drive assembly (3), the centre of a circle of runner (31) rotates with the inboard of protector (1) to be connected, the outside below of runner (31) rotates and is connected with connecting band (32), the lower extreme of push rod (41) and the upper left end fixed connection of connecting band (32), under the initial condition connecting band (32) are in the state of tightening.
6. A leakage protector with overvoltage protection function according to claim 5, characterized in that: the connecting belt (32) is made of polyethylene material.
7. A leakage protector with overvoltage protection function according to claim 5, characterized in that: the upper right end of connecting band (32) is provided with a plurality of detection hooks (33), and detects hook (33) along the inner wall evenly distributed of protector (1).
8. A leakage protector with overvoltage protection function according to claim 4, characterized in that: the elastic potential energy of the maximum compression distance of the return spring (42) on the outer side of the push rod (41) is larger than the air pressure of the air storage tank (4) after the air storage tank is filled with air.
9. A leakage protector with overvoltage protection function according to claim 1 or 4, characterized in that: the air storage tank (4) is movably connected with the inside of the protector (1), and a detachable plate (53) is arranged on the left side of the storage tank (5).
10. A leakage protector with overvoltage protection function according to claim 7, characterized in that: the inner upper part of the detection hook (33) is provided with a pressure sensor and an alarm in the inner wall of the protector (1), and the pressure sensor and the alarm are controlled by an independent circuit.
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| JP2003159346A (en) * | 2001-11-29 | 2003-06-03 | Mitsuhiro Kato | Automatic fire extinguisher |
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| CN115531771B (en) | 2023-10-24 |
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Effective date of registration: 20230921 Address after: No.29-1, Jiufa Road, Wendeng Economic Development Zone, Weihai City, Shandong Province 264400 Applicant after: Weihai Deliyuan Power Equipment Co.,Ltd. Address before: 510700 Room 903, building 1, Pinxiu Xingyue, sanjidi street, Huangpu District, Guangzhou, Guangdong Province Applicant before: Cheng Yao |
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