CN112566479A

CN112566479A - Ammeter case with automatic power-off protection just prevents losing fire

Info

Publication number: CN112566479A
Application number: CN202110020425.9A
Authority: CN
Inventors: 王建玮
Original assignee: Xunxiu Trade Co ltd
Current assignee: Xunxiu Trade Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-03-26

Abstract

The invention discloses an ammeter box with automatic power-off protection and anti-misfire function, which comprises a protection device, wherein a fan mechanism for airflow flowing is arranged in the protection device, the device is simple in structure and convenient and fast to operate, when the device is in normal use, a worker firstly places an ammeter in the ammeter box and then connects the ammeter with the device, then installs and fixes the ammeter box on a wall by using bolts, and then connects a wire with the ammeter box, so that the wire used by residents is led out, in the whole operation process of the ammeter, the airflow of the ammeter box can fully flow due to the fan mechanism of the ammeter box, when the ammeter runs in an overload state, the ammeter box can be subjected to power-off protection in time under the action of the protection mechanism, and meanwhile, a power-off interface can also be subjected to partial vacuum treatment due to the fan mechanism of the device, so as to avoid fire, thereby the ammeter is protected, the power utilization safety is also protected, and the large-area power failure is prevented.

Description

Ammeter case with automatic power-off protection just prevents losing fire

Technical Field

The invention relates to the field of related design of electric meters, in particular to an electric meter box with automatic power-off protection and fire loss prevention.

Background

In life, an electric energy meter is a short-term instrument for measuring electric energy, which is also called an electric meter, a fire meter, an electric energy meter and a kilowatt-hour meter, and refers to an instrument for measuring various electric quantities, and is inseparable to the life of people;

at the present stage, the ammeter adopted by people sometimes causes fire due to aging of the ammeter because of overlong service time, and meanwhile, due to long-time overload operation of the ammeter, the ammeter is easy to overheat, and safety power utilization accidents are easy to happen.

Disclosure of Invention

The invention aims to solve the technical problem of providing an electric meter box with automatic power-off protection and fire loss prevention, and overcomes the problems.

The invention is realized by the following technical scheme.

The invention discloses an electric meter box with automatic power-off protection and anti-misfire functions, which comprises a protection device, wherein a fan mechanism for airflow flowing is further arranged in the protection device, a protection mechanism for preventing an electric meter from generating a fire disaster is further arranged in the protection device, an auxiliary mechanism for fixing the protection device is further arranged in the protection device, the protection mechanism comprises an electric meter placing cavity and an electric meter, the electric meter is arranged in the electric meter placing cavity, a working cavity communicated with the outside is further arranged in the lower cavity wall of the electric meter placing cavity, a socket is arranged in the working cavity, an electric wire is fixedly connected between the upper end surface of the socket and the lower end surface of the electric meter, fixture block cavities with openings facing the working cavity are further arranged in the left cavity wall and the right cavity wall of the working cavity, another part of a fixture block positioned in the working cavity is further arranged in the fixture block cavity, and the end surface of the fixture block far away from the working cavity is fixedly connected with a The spring, the fixture block is kept away from the terminal surface fixedly connected with thick rope of working chamber, still be equipped with the cavity passageway in the cavity wall behind the working chamber, be equipped with the sprue chamber in the cavity wall under the cavity passageway, it is located to be equipped with another part in the sprue chamber the jam piece of cavity passageway, under the jam piece terminal surface fixedly connected with other end with sprue chamber lower chamber wall fixed connection's expanding spring, still be equipped with in the sprue chamber cavity wall behind the sprue chamber and draw the piece chamber, draw the piece intracavity be equipped with another part be located the sprue intracavity and with sprue fixedly connected's draw the piece, draw under the piece terminal surface fixedly connected with other end with draw piece chamber lower chamber wall fixed connection's draw piece reset spring, draw under the piece terminal surface still fixedly connected with long rope, still be equipped with the plug in the working chamber.

Further, still be equipped with the displacement chamber in the protection device, the displacement intracavity is equipped with the displacement piece, the terminal surface fixedly connected with other end before the displacement piece with displacement chamber front chamber wall fixed connection's reset spring, terminal surface fixedly connected with main contact point before the displacement piece, displacement chamber front chamber wall fixedly connected with auxiliary contact, displacement piece rear end face fixedly connected with fuse and thick rope, still be equipped with another part in the displacement intracavity and be located external dead lever, terminal surface fixedly connected with other end before the dead lever with displacement piece rear end face fixed connection's compression spring.

Further, the fan mechanism comprises a fan cavity which is positioned in the wall of the back cavity of the electricity meter placing cavity and is communicated with the outside, two filter plates are arranged in the fan cavity, a driving shaft is rotatably connected between the filter plates, the driving shaft is fixedly connected with a fan and a driving belt wheel, the front side of the fan cavity is fixedly connected with a fan on the front end face of the filter plate, an air circulation channel communicated with the outside is also arranged in the wall of the upper cavity of the electricity meter placing cavity, a driven cavity is also arranged in the protection device, the wall of the front cavity and the back cavity of the driven cavity is rotatably connected with a driven shaft, the driven shaft is fixedly connected with a driven belt wheel, the driven belt wheel is connected with the driving belt wheel through a belt, the driven shaft is connected with a rotating gear through a spline, a rotating ring groove is arranged in the rotating gear, a rotating slide block is connected in the rotating, terminal surface fixedly connected with before the rotatory slider the other end of thick rope, the antechamber wall rotates and is connected with fixed rotating shaft, rotatory rope sheave of fixed rotating shaft fixedly connected with and straight-tooth gear, around having on the rotatory rope sheave the other end of thick rope with the other end of long rope, before the straight-tooth gear terminal surface fixedly connected with other end with the rotatory torsional spring of antechamber wall fixed connection before the slave chamber, be equipped with in the fan chamber cavity wall down the other end of empty passageway.

Further, still be equipped with in the protection device and run through the inside ponding passageway of protection device, still be equipped with the lamp in the protection device and place the chamber, the chamber left side chamber wall fixedly connected with lamp is placed to the lamp, the intracavity is placed to the lamp still is equipped with the glass board, both ends all are equipped with two fixed orificess about the protection device, still be equipped with the lid chamber in the protection device, the chamber wall rotates about the lid chamber and is connected with the lid pivot, lid pivot fixedly connected with fixed plate, terminal surface fixedly connected with transparent plate under the fixed plate, the fixed plate with lid pivot fixedly connected with rotates the torsional spring.

Further, complementary unit is including being located still be equipped with the button chamber in the protection device, the button intracavity still is equipped with the button piece, button piece rear end face fixedly connected with other end with button chamber rear cavity wall fixed connection's button displacement spring, button piece up end fixedly connected with string, the ammeter is placed and still is equipped with the restriction chamber in the chamber lower chamber wall, it is located to be equipped with another part in the restriction intracavity the restriction piece of intracavity is placed to the ammeter, under the restriction piece terminal surface fixedly connected with other end with restriction chamber lower chamber wall fixed connection's restriction reset spring, terminal surface fixedly connected with under the restriction piece the other end of string.

Furthermore, the end face of the fixture block, which is far away from the working cavity, is fixedly connected with the rotating rope wheel through the thick rope, the rotating rope wheel is fixedly connected with the lower end face of the pulling block through the long rope, and the elastic force of the button displacement spring is larger than that of the limiting reset spring.

The invention has the beneficial effects that: the device simple structure, the simple operation, the device staff is at first placed the ammeter in the ammeter case and then the ammeter is connected with the device when normal use, then utilize the bolt mounting to fix the ammeter case on the wall, later be connected the line with the ammeter case again, thereby draw forth the line that the resident used, at the whole in-process of ammeter operation, because the fan mechanism of ammeter case makes the air current of ammeter case carry out abundant flow, when the ammeter appears overload operation, the ammeter case can carry out timely outage protection in protection mechanism's effect this moment, outage interface goes out and also can carry out local vacuum because the fan mechanism of device carries out simultaneously, avoid the conflagration to take place, thereby the ammeter has been protected, the power consumption safety has also been protected, the power failure of large tracts of land has been prevented to appear.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure A-A of FIG. 1 according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of the structure B-B in FIG. 2 according to an embodiment of the present invention;

FIG. 4 is an enlarged view of the structure at C in FIG. 2 according to an embodiment of the present invention.

Detailed Description

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Referring to fig. 1-4, the electric meter box with automatic power-off protection and fire loss prevention comprises a protection device 10, a fan mechanism 75 for airflow flowing is further arranged in the protection device 10, a protection mechanism 76 for preventing an electric meter from generating a fire disaster is further arranged in the protection device 10, an auxiliary mechanism 77 for fixing the device is further arranged in the protection device 10, the protection mechanism 76 comprises an electric meter placing cavity 23 which is also arranged in the protection device 10, an electric meter 24 is arranged in the electric meter placing cavity 23, a working cavity 17 communicated with the outside is further arranged in the lower cavity wall of the electric meter placing cavity 23, a socket 16 is arranged in the working cavity 17, an electric wire 15 is fixedly connected between the upper end surface of the socket 16 and the lower end surface of the electric meter 24, fixture cavities 20 with openings facing the working cavity 17 are further arranged in the left and right cavity walls of the working cavity 17, and fixture blocks 19 with the other parts located in the working cavity 17 are further arranged in the fixture cavities 20, the end face of the fixture block 19 far away from the working cavity 17 is fixedly connected with a fixture block return spring 22 with the other end fixedly connected with the cavity wall of the fixture block cavity 20, the end face of the fixture block 19 far away from the working cavity 17 is fixedly connected with a thick rope 21, the rear cavity wall of the working cavity 17 is also provided with an empty channel 56, the lower cavity wall of the empty channel 56 is provided with a block cavity 51, the block cavity 51 is internally provided with a plugging block 50 with the other part positioned in the empty channel 56, the lower end face of the plugging block 50 is fixedly connected with a telescopic spring 52 with the other end fixedly connected with the lower cavity wall of the block cavity 51, the rear cavity wall of the block cavity 51 is also provided with a pull block cavity 54, the pull block cavity 54 is internally provided with a pull block 53 with the other part positioned in the block cavity 51 and fixedly connected with the plugging block 50, the lower end face of the pull block 53 is fixedly connected with a pull block return spring 74 with the other end fixedly connected with the lower, the lower end face of the pulling block 53 is also fixedly connected with a long rope 55, and a plug 18 is further arranged in the working cavity 17.

Advantageously, a displacement cavity 58 is further arranged in the protection device 10, a displacement block 29 is arranged in the displacement cavity 58, a return spring 26 is fixedly connected to the front end face of the displacement block 29, the other end of the return spring is fixedly connected with the front cavity wall of the displacement cavity 58, a main contact 25 is fixedly connected to the front end face of the displacement block 29, an auxiliary contact 57 is fixedly connected to the front cavity wall of the displacement cavity 58, a fuse 27 and a thick rope 28 are fixedly connected to the rear end face of the displacement block 29, another part of a fixing rod 31 located outside is further arranged in the displacement cavity 58, and a compression spring 30 is fixedly connected to the front end face of the fixing rod 31, the other end of the compression spring is fixedly connected with the rear.

Beneficially, fan mechanism 75 includes that it is located the ammeter and places the fan chamber 39 that still is equipped with the intercommunication with the external world in the chamber wall behind the chamber 23, be equipped with two filter plates 37 in the fan chamber 39, it is connected with driving shaft 36 to rotate between the filter plates 37, driving shaft 36 fixedly connected with fan 34 and driving pulley 35, the front side filter plate 37 preceding terminal surface fixedly connected with fan 38, the ammeter is placed and is still equipped with the circulation of air passageway 40 with the external world intercommunication in the chamber wall in the chamber 23, still be equipped with driven chamber 62 in the protection device 10, the chamber wall rotates around the driven chamber 62 and is connected with driven shaft 71, driven shaft 71 fixedly connected with driven pulley 63, driven pulley 63 with driving pulley 35 is connected through belt 32, driven shaft 71 is connected with rotary gear 64 through the spline, be equipped with rotatory annular 67 in the rotary gear 64, through sliding connection has rotatory slider 65 in the rotatory annular 67, the other end of end face fixedly connected with before the rotatory slider 65 with from 62 front chamber wall fixedly connected with rotating spring 66 of slave chamber, end face fixedly connected with before the rotatory slider 65 the other end of thick rope 28, from 62 front chamber walls of slave chamber rotate and be connected with fixed rotating shaft 73, fixed rotating shaft 73 fixedly connected with rotates rope sheave 70 and straight-tooth gear 69, around having on the rotatory rope sheave 70 the other end of thick rope 21 with the other end of long rope 55, the straight-tooth gear 69 before the end face fixedly connected with other end with from 62 front chamber wall fixedly connected's of slave chamber torsional spring 68, be equipped with in the fan chamber 39 lower chamber wall the other end of empty passageway 56.

Beneficially, still be equipped with in the protection device 10 and run through the inside ponding passageway 11 of protection device 10, still be equipped with the lamp in the protection device 10 and place chamber 13, the lamp is placed chamber 13 left side chamber wall fixedly connected with lamp 12, the lamp is placed and is still equipped with glass board 14 in the chamber 13, both ends all are equipped with two fixed orificess 33 about protection device 10, still be equipped with lid chamber 59 in the protection device 10, chamber wall rotates about lid chamber 59 and is connected with lid pivot 60, lid pivot 60 fixedly connected with fixed plate 41, terminal surface fixedly connected with transparent plate 42 under fixed plate 41, fixed plate 41 with lid pivot 60 fixedly connected with rotates torsional spring 61.

Beneficially, the auxiliary mechanism 77 includes a button cavity 47 further disposed in the protection device 10, a button block 49 is further disposed in the button cavity 47, a rear end face of the button block 49 is fixedly connected with a button displacement spring 48, the other end of the button displacement spring is fixedly connected with a rear cavity wall of the button cavity 47, a string 46 is fixedly connected with an upper end face of the button block 49, a limiting cavity 44 is further disposed in a lower cavity wall of the electric meter placing cavity 23, another portion of a limiting block 43 disposed in the electric meter placing cavity 23 is disposed in the limiting cavity 44, a limiting return spring 45, the other end of the limiting block 43 is fixedly connected with the lower cavity wall of the limiting cavity 44, and the other end of the string 46 is fixedly connected with a lower end face of the limiting block 43.

Advantageously, the end surface of the latch 19 away from the working chamber 17 is fixedly connected with the rotating rope wheel 70 through the thick rope 21, the rotating rope wheel 70 is fixedly connected with the lower end surface of the pulling block 53 through the long rope 55, and the elastic force of the button displacement spring 48 is greater than that of the limiting return spring 45.

Sequence of mechanical actions of the whole device:

in the initial state: the return spring 26 is in the open position, and another part of the blocking block 50 is located in the empty channel 56 and blocks the empty channel 56 between the working chamber 17 and the fan chamber 39, so that a closed cavity between the plug 18 and the socket 16 is formed in west gulch city.

1: firstly, the operator pushes the button block 49 to tighten the string 46 and then moves the restricting block 43 downward, at which time the operator rotates the transparent plate 42, then places the electricity meter 24 in the electricity meter placing cavity 23, releases the button block 49, which in turn causes the button block 49 to advance under the action of the button displacement spring 48, which in turn causes the string 46 to relax again, which in turn causes the restricting block 43 to move upwards under the action of the restricting return spring 45 to return, then connected to the socket 16 through the electric wire 15, and then the transparent plate 42 is rotated reversely, at this time, due to the structural action of the restricting block 43, the installation of the electricity meter 24 is completed, then the plug 18 is inserted into the working cavity 17, at this time, the plug 18 is connected with the socket 16, and at this time, the plug 18 and the socket 16 are seamlessly connected under the action of the clamping blocks 19 on the left side and the right side of the plug 18, so that the leading-out of the wire is completed;

2: at this time, the worker installs the right end face of the device on the wall, then the device is fixedly connected by the bolt, at this time, the fan 38 is started, so that the air flow enters the electricity meter placing cavity 23 through the air circulation channel 40 and then passes through the fan cavity 39 to the outside, in the process, the fan 34 is driven to rotate, the driving shaft 36 is driven to rotate, the driven belt wheel 63 is driven to rotate, the driven shaft 71 is driven to rotate, so that the working temperature of the normal work of the electricity meter is completed, when the electricity meter is subjected to overload power-on, the fuse 27 is fused, the displacement block 29 moves forward under the action of the reset spring 26, so that the thick rope 28 is tensioned, and when the main contact point 25 is in contact with the auxiliary contact point 57, the lamp 12 is lightened, at this time, the worker observes the lamp 12 and knows that the fuse is broken, the thick rope 28 is tensioned and then, further, the rotating gear 64 is meshed with the straight-tooth gear 69, the rotating gear 64 rotates to drive the straight-tooth gear 69 to rotate, further the fixed rotating shaft 73 is driven to rotate, further the rotating rope wheel 70 is driven to rotate, further the thick rope 21 and the long rope 55 are tensioned, the thick rope 21 is tensioned, further the clamping block 19 moves towards the direction far away from the working cavity 17, further the limitation on the plug 18 is relieved, the plug 18 moves downwards under the action of self gravity, the long rope 55 is tensioned, further the pulling block 53 moves downwards, further the blocking block 50 is driven to move downwards, at the moment, the empty channel 56 is unobstructed again, further the working cavity 17 is communicated with the fan cavity 39 again, at the moment, due to the fact that the air pressure in the fan cavity 39 is low, the air pressure in the working cavity 17 is high, further the closed cavity formed between the plug 18 and the socket 16 becomes vacuum, and therefore the fire caused by electric sparks generated by sudden disconnection of the plug 18, thereby completing the automatic power-off protection function of the electric meter, and at the moment, the fan 38 is turned off;

3: after the maintenance is finished, the worker moves the fixing rod 31 backwards at the moment, so that the displacement block 29 moves backwards, so that the thick rope 28 is loosened again, then the fuse 27 is reinstalled, the reconnection of the fuse is finished, the thick rope 28 is loosened, so that the rotary gear 64 moves backwards and resets under the action of the rotary spring 66, at the moment, the pulling block 53 moves upwards and resets under the action of the pulling block resetting spring 74, meanwhile, the plugging block 50 moves upwards and resets under the action of the telescopic spring 52, meanwhile, the fixture block 19 moves and resets in the direction close to the working cavity 17 under the action of the fixture block resetting spring 22, then, the plug 18 is inserted into the working cavity 17, at the moment, the plug 18 is connected with the socket 16, at the moment, the plug 18 is in seamless connection with the socket 16 under the action of the fixture blocks 19 on the left side and the right side, so that the leading-out of the cable is.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an ammeter case with auto-power-off protection just prevents losing fire, includes protection device, its characterized in that: a fan mechanism for air flow is further arranged in the protection device, a protection mechanism for preventing an ammeter from generating fire is further arranged in the protection device, an auxiliary mechanism for device fixing is further arranged in the protection device, the protection mechanism comprises an ammeter placing cavity which is arranged in the protection device, an ammeter is arranged in the ammeter placing cavity, a working cavity communicated with the outside is further arranged in the lower cavity wall of the ammeter placing cavity, a socket is arranged in the working cavity, an electric wire is fixedly connected between the upper end surface of the socket and the lower end surface of the ammeter, fixture block cavities with openings facing the working cavity are further arranged in the left cavity wall and the right cavity wall of the working cavity, another part of fixture blocks positioned in the working cavity are further arranged in the fixture block cavities, and the end surface of each fixture block far away from the working cavity is fixedly connected with a fixture block reset spring of which the other end is fixedly connected with the, the fixture block is far away from the end face fixedly connected with thick rope of the working cavity, a hollow channel is further arranged in the cavity wall of the working cavity, a blocking block cavity is arranged in the cavity wall of the hollow channel, another part in the blocking block cavity is arranged on a blocking block of the hollow channel, the other end of the end face fixedly connected with the blocking block cavity is fixedly connected with an expansion spring of the blocking block cavity lower cavity wall, a pulling block cavity is further arranged in the cavity wall of the blocking block cavity, another part in the pulling block cavity is arranged on the blocking block cavity and is fixedly connected with a pulling block, the other end of the pulling block lower end face fixedly connected with the pulling block reset spring of the pulling block cavity lower cavity wall fixedly connected with the pulling block lower end face, a long rope is further fixedly connected with the pulling block lower end face, and a plug is further arranged in the working cavity.

2. An electricity meter box with automatic power-off protection and fire loss prevention according to claim 1, characterized in that: still be equipped with the displacement chamber in the protection device, the displacement intracavity is equipped with the displacement piece, the terminal surface fixedly connected with other end before the displacement piece with displacement chamber front chamber wall fixed connection's reset spring, terminal surface fixedly connected with owner contact point before the displacement piece, displacement chamber front chamber wall fixedly connected with auxiliary contact, displacement piece rear end face fixedly connected with fuse and thick rope, still be equipped with another part in the displacement intracavity and be located external dead lever, the terminal surface fixedly connected with other end with displacement piece rear end face fixed connection's compression spring before the dead lever.

3. An electricity meter box with automatic power-off protection and fire loss prevention according to claim 1, characterized in that: the fan mechanism comprises a fan cavity which is positioned in the wall of the rear cavity of the electric meter placing cavity and is communicated with the outside, two filter plates are arranged in the fan cavity, a driving shaft is rotatably connected between the filter plates, the driving shaft is fixedly connected with a fan and a driving belt wheel, the front side of the fan is fixedly connected with a fan on the front end face of the filter plate, an air circulation channel communicated with the outside is also arranged in the wall of the upper cavity of the electric meter placing cavity, a driven cavity is also arranged in the protection device, the wall of the front cavity and the rear cavity of the driven cavity is rotatably connected with a driven shaft, the driven shaft is fixedly connected with a driven belt wheel, the driven belt wheel is connected with the driving belt wheel through a belt, the driven shaft is connected with a rotating gear through a spline, a rotating ring groove is arranged in the rotating gear, a rotating slide block is connected in the, terminal surface fixedly connected with before the rotatory slider the other end of thick rope, the antechamber wall rotates and is connected with fixed rotating shaft, rotatory rope sheave of fixed rotating shaft fixedly connected with and straight-tooth gear, around having on the rotatory rope sheave the other end of thick rope with the other end of long rope, before the straight-tooth gear terminal surface fixedly connected with other end with the rotatory torsional spring of antechamber wall fixed connection before the slave chamber, be equipped with in the fan chamber cavity wall down the other end of empty passageway.

4. An electricity meter box with automatic power-off protection and fire loss prevention according to claim 1, characterized in that: still be equipped with in the protection device and run through the inside ponding passageway of protection device, still be equipped with the lamp in the protection device and place the chamber, the chamber left side chamber wall fixedly connected with lamp is placed to the lamp, the intracavity still is equipped with the glass board to the lamp is placed, both ends all are equipped with two fixed orificess about the protection device, still be equipped with the lid chamber in the protection device, the chamber wall rotates about the lid chamber and is connected with the lid pivot, lid pivot fixedly connected with fixed plate, terminal surface fixedly connected with transparent plate under the fixed plate, the fixed plate with lid pivot fixedly connected with rotates the torsional spring.

5. An electricity meter box with automatic power-off protection and fire loss prevention according to claim 1, characterized in that: the auxiliary mechanism is including being located still be equipped with the button chamber in the protection device, the button intracavity still is equipped with the button piece, button piece rear end face fixedly connected with other end with button chamber rear cavity wall fixed connection's button displacement spring, button piece up end fixedly connected with string, the ammeter is placed and still is equipped with the restriction chamber in the chamber lower chamber wall, the restriction intracavity is equipped with another part and is located the restriction piece of intracavity is placed to the ammeter, the restriction piece down the terminal surface fixedly connected with other end with restriction chamber lower chamber wall fixed connection's restriction reset spring, terminal surface fixedly connected with under the restriction piece the other end of string.

6. An electricity meter box with automatic power-off protection and fire loss prevention according to claim 1, characterized in that: the end face of the clamping block, which is far away from the working cavity, is fixedly connected with the rotating rope wheel through the thick rope, the rotating rope wheel is fixedly connected with the lower end face of the pulling block through the long rope, and the elastic force of the button displacement spring is larger than that of the limiting reset spring.