CN113759156A - Power metering box and use method thereof - Google Patents
Power metering box and use method thereof Download PDFInfo
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- CN113759156A CN113759156A CN202111183886.4A CN202111183886A CN113759156A CN 113759156 A CN113759156 A CN 113759156A CN 202111183886 A CN202111183886 A CN 202111183886A CN 113759156 A CN113759156 A CN 113759156A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000001012 protector Effects 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims description 19
- 230000008569 process Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 10
- 230000002265 prevention Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
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- 238000001179 sorption measurement Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/04—Housings; Supporting racks; Arrangements of terminals
Abstract
The invention provides a power metering box and a using method thereof, belonging to the technical field of power metering; the intelligent anti-theft box comprises a box body and a box door, wherein a circuit-breaking protector and an electric energy meter are installed in the box body, the electric energy meter is electrically connected with the circuit-breaking protector, and an anti-theft switch is also electrically connected between the electric energy meter and the circuit-breaking protector; the anti-electricity-theft switch comprises a shell, wherein the shell is provided with a pair of symmetrically arranged external wiring terminals; a guide block is arranged between the two external wiring terminals and is in sliding connection with the shell; one end of the guide block is connected with a first spring, and the other end of the first spring is connected with the shell; the other end of the guide block is connected with a conducting strip, and the two ends of the conducting strip are respectively in contact connection with the two external wiring terminals; the insulating plate is used for being inserted between the conducting strip and the external wiring terminal and is connected with a driving mechanism for driving the insulating plate to move. The device has simple structure and reasonable design, and can effectively prevent illegal persons from stealing electricity.
Description
Technical Field
The invention belongs to the technical field of electric power metering, and particularly relates to an electric power metering box and a using method thereof.
Background
With the development of economy and social progress, electric power has become an indispensable energy source in life. The batch meter is the electric energy metering device commonly used, installs devices such as terminal box and electric energy meter in the batch meter, and at the practical application in-process, because the supervision is not in place, the condition of stealing the electric energy appears very easily in the outdoor batch meter, and the order in electric power market suffers destruction, causes economic loss. Therefore, power protection is valued by people, and a power metering box capable of preventing electricity stealing is needed.
Disclosure of Invention
In order to solve the problems in the prior art, a power metering box and a using method thereof are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the technical scheme provides a power metering box which comprises a box body and a box door, wherein a circuit-breaking protector and an electric energy meter are installed in the box body, the electric energy meter is electrically connected with the circuit-breaking protector, and an anti-theft switch is also electrically connected between the electric energy meter and the circuit-breaking protector; the anti-electricity-theft switch comprises a shell, wherein the shell is provided with a pair of external wiring terminals which are symmetrically arranged; a guide block is arranged between the two external wiring terminals and is connected with the shell in a sliding way; one end of the guide block is connected with a first spring, and the other end of the first spring is connected with the shell; the other end of the guide block is connected with a conducting strip, and the two ends of the conducting strip are respectively in contact connection with the two external wiring terminals; the insulation board is used for being inserted between the conducting strip and the external wiring terminal and is connected with a driving mechanism for driving the insulation board to move.
The driving mechanism comprises a sliding shaft, the sliding shaft is connected in the shell in a sliding manner, one end of the sliding shaft is connected with a third spring, and the third spring is connected with the shell; the other end of the sliding shaft extends out of the shell;
a follower rod is arranged on one side of the sliding shaft and is connected with the shell in a sliding manner; the follower rod is connected with a second spring; the second spring is connected with the shell; the outer wall of the sliding shaft is connected with a wedge-shaped block used for jacking the follower rod; a first connecting rod is further arranged in the shell and is rotatably connected with the shell through a pin shaft to form a lever structure; one end of the first connecting rod is movably connected with the follower rod; the other end of the first connecting rod is movably connected with the rack; a gear meshed with the rack is also rotatably connected in the shell, and the gear is connected with a rotary table;
the second connecting rod is connected with the shell in a sliding manner; one end of the second connecting rod is connected with the insulating plate, the other end of the second connecting rod is hinged with a third connecting rod, and the third connecting rod is eccentrically hinged with the turntable;
the box door is characterized by further comprising an extrusion column for extruding the sliding shaft to move, wherein the extrusion column is wedge-shaped and is arranged on the inner wall of the box door.
The reset mechanism comprises a sliding clamping strip, and the sliding clamping strip is connected with the shell in a sliding manner; one end of the sliding clamping strip is connected with a second magnet; the sliding clamping strip is also connected with a fourth spring, and the fourth spring is connected with the shell; a first magnet is also rotatably connected in the shell, and a key hole is formed in the first magnet; the key is matched and spliced with the key hole; the outer wall of the follower rod is connected with a clamping block, the clamping block is provided with an inclined plane, and the clamping block is in adaptive clamping connection with the sliding clamping strip.
The box door is provided with a through hole for a key to penetrate through.
The invention also provides a using method of the power metering box, which comprises the following specific steps:
when the anti-electricity-theft switch is normally used, the box door is closed, and the anti-electricity-theft switch is normally electrified to work; when the box door is opened, the extrusion column of the box door can not limit the sliding shaft any more, and at the moment, the sliding shaft slides under the action of the elastic force of the third spring; the sliding shaft drives the wedge block to move together in the sliding process, the wedge block drives the follower rod to move when moving, and the second spring is compressed; the first connecting rod can be driven to rotate around the pin shaft by the follower rod when the follower rod moves, the rack can be driven to move by the first connecting rod when the first connecting rod rotates, the gear can be driven to rotate by the rack movement, the rotary disc can be driven to rotate, the third connecting rod can be driven to move in the rotating process of the rotary disc, the second connecting rod can be driven to move by the third connecting rod movement, the insulating plate can be driven to move, the insulating plate can enter between the conducting plate and the external wiring terminal in an inserting mode, and power failure is achieved; meanwhile, the conductive sheet can drive the guide block to move, and the first spring generates elastic force.
After the box door is opened, the follower rod can drive the clamping block to move when moving, the sliding clamping strip can be extruded after the clamping block touches the sliding clamping strip when moving, the sliding clamping strip moves towards the direction close to the conducting strip, and the fourth spring is compressed to generate elastic force; when the clamping block moves above the sliding clamping strip, the sliding clamping strip moves towards the direction close to the follower rod under the action of the elastic force of the fourth spring, so that the clamping block is clamped at the top of the sliding clamping strip; the insulation plate is inserted between the conducting plate and the external wiring terminal, so that the power failure is realized, and the state is kept;
if the box door is opened when the maintenance is carried out by a worker, the box door is closed after the maintenance is finished, and at the moment, the extrusion column on the box door extrudes the sliding shaft, so that the sliding shaft is reset; because the staff is provided with a corresponding key, the key penetrates into the key hole through the through hole, and the first magnet is rotated; the attraction between the first magnet and the second magnet after rotation is increased, so that the second magnet drives the sliding clamping strip to move towards the direction away from the follower rod, the limiting is further relieved, and the follower rod drives the clamping strip to move and reset under the action of the elastic force of the second spring; the follower rod drives the first connecting rod to rotate reversely in the resetting process, so that the rack moves reversely and the turntable rotates reversely; the third connecting rod drives the second connecting rod to move reversely, so that the insulating plate is pulled away from the space between the conducting strip and the external wiring terminal; the conducting plate is reset under the elastic force of the first spring and is contacted with the external wiring terminal to complete the electrification.
Compared with the prior art, the invention has the following advantages:
1. the anti-theft switch is provided with the external wiring terminal and the movable conducting plate, and is inserted between the conducting plate and the external wiring terminal through the insulating plate, so that power failure can be realized; the removal of insulation board is driven by actuating mechanism to actuating mechanism links with opening and shutting of chamber door, and when opening the chamber door, actuating mechanism drives the insulation board and removes, makes it peg graft between conducting strip and the external connection terminal, accomplishes the outage, can effectively prevent lawless persons and steal the electricity.
2. The driving mechanism is realized in a mechanical mode, and no additional electric part is needed; when the box door is opened, the extrusion column of the box door can not limit the sliding shaft any more, and the sliding shaft slides under the action of the elastic force of the third spring; the sliding shaft drives the wedge block to move together in the sliding process, the wedge block drives the follower rod to move when moving, and the second spring is compressed; the first connecting rod can be driven to rotate around the pin shaft by the follower rod when the follower rod moves, the rack can be driven to move by the first connecting rod when the first connecting rod rotates, the gear can be driven to rotate by the rack movement, the rotary disc can be driven to rotate, the third connecting rod can be driven to move in the rotating process of the rotary disc, the second connecting rod can be driven to move by the third connecting rod movement, the insulating plate can be driven to move, the insulating plate can enter between the conducting plate and the external wiring terminal in an inserting mode, and power failure is achieved; since lawless persons are not easy to find the matching relation between the sliding shaft and the extrusion column, after the box door is opened, the lawless persons can be stranded on how to supply power, and the purpose of electricity larceny prevention can be well achieved by using ingenious and reasonable structures and the matching among all the parts.
3. The whole device is also provided with a reset mechanism, the reset mechanism needs to be driven by a key, a worker is provided with a corresponding key, the key penetrates into the key hole through the through hole, and the first magnet is rotated; the attraction between the first magnet and the second magnet after rotation is increased, so that the second magnet drives the sliding clamping strip to move towards the direction away from the follower rod, the limiting is further relieved, and the follower rod drives the clamping strip to move and reset under the action of the elastic force of the second spring; the follower rod drives the first connecting rod to rotate reversely in the resetting process, so that the rack moves reversely and the turntable rotates reversely; the third connecting rod drives the second connecting rod to move reversely, so that the insulating plate is pulled away from the space between the conducting strip and the external wiring terminal; the conducting plate is reset under the elastic force of the first spring and is contacted with the external wiring terminal to complete electrification; the anti-theft device can prevent lawless persons from stealing electricity, and can facilitate unpacking and maintenance of workers and subsequent power transmission.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural view of the door of the present invention in an open state.
Figure 3 is a sectional view of the interior of the casing of the anti-tamper switch.
Fig. 4 is a view showing the internal structure of the anti-theft switch in a power-off state.
FIG. 5 is a schematic view of the structure in the direction B-B.
Fig. 6 is an enlarged view of the structure of the region M.
FIG. 7 is a schematic view of the structure in the direction C-C.
Fig. 8 is a schematic configuration diagram of the reset mechanism in the reset state.
Description of reference numerals:
1 a circuit breaking protector; 2, a box door; 3, a box body; 4, an electric energy meter; 5 a viewing hole; 6, a box door lock; 7, operating holes; 8, a burglar-proof switch; 81 extruding the column; 82 through holes; 9 an insulating plate; 10 a guide block; 11 a first spring; 12 a conductive sheet; 13 contact points; 14 external connection terminals; 15 rack bars; 16 a first link; 17 a second spring; 18 a follower rod; 19 a fixture block; 20 wedge-shaped blocks; 21 a slide shaft; 22 a third spring; 23 a second link; 24 a turntable; 25 gears; 26 a third link; 27 fixing blocks; 28 a first magnet; 29 a fourth spring; 30 a second magnet; 31 slide the strip.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1 to 8, the present embodiment proposes to provide a power metering box, which includes a box body 3 and a box door 2, wherein the box door 2 is hinged with the box body 3 through a hinge; a circuit breaker protector 1 and an electric energy meter 4 are installed in the box body 3, the electric energy meter 4 is electrically connected with the circuit breaker protector 1, and an anti-theft switch 8 is also electrically connected between the electric energy meter 4 and the circuit breaker protector 1; the box door 2 is provided with an observation hole 5, and transparent glass is arranged in the observation hole 5, so that observation is facilitated; an operation hole 7 for operating the circuit breaker protector 1 is formed below the observation hole 5, and a box door lock 6 is installed on one side of the box door 2, so that the box door 2 can be locked.
The following describes the anti-theft switch 8 in detail:
the anti-electricity-theft switch 8 comprises a shell, wherein the shell is provided with a pair of external wiring terminals 14 which are symmetrically arranged and used for being connected with an external power line; a guide block 10 is arranged between the two external wiring terminals 14, the guide block 10 is connected with the shell in a sliding way, and the guide block 10 can move back and forth along the shell; one end of the guide block 10 is connected with a first spring 11, the other end of the first spring 11 is connected with the shell, and the first spring 11 is used for providing elastic force; the other end of the guide block 10 is connected with a conducting strip 12, the two ends of the conducting strip 12 are respectively in contact connection with two external wiring terminals 14, and the conducting strip 12 can be in close contact with the external wiring terminals 14 by virtue of the elasticity of the first spring 11; the insulating plate 9 is inserted between the conducting plate 12 and the external wiring terminal 14, and the insulating plate 9 is connected with a driving mechanism for driving the insulating plate 9 to move.
In order to ensure a good contact effect, the outer terminals 14 and the conductive sheet 12 are provided with contacts 13 that are engaged with each other, thereby preventing a contact failure.
The driving mechanism can adopt the following arrangement mode:
the driving mechanism comprises a sliding shaft 21, the sliding shaft 21 is connected in the shell in a sliding way, and the sliding shaft 21 can slide freely; one end of the sliding shaft 21 is connected with a third spring 22, the third spring 22 is connected with the shell, and the third spring 22 plays a role in resetting; the other end of the slide shaft 21 extends outside the housing.
A follower rod 18 is arranged at one side of the sliding shaft 21, and the follower rod 18 is connected with the shell in a sliding way and can slide freely; the follower rod 18 is connected with a second spring 17; the second spring 17 is connected with the shell; the outer wall of the sliding shaft 21 is connected with a wedge block 20 for jacking the follower rod 18, and when the sliding shaft 21 moves, the wedge block 20 can jack the follower rod 18 in the moving process; a first connecting rod 16 is further arranged in the shell, and the first connecting rod 16 is rotatably connected with the shell through a pin shaft to form a lever structure; one end of the first connecting rod 16 is movably connected with the follower rod 18; the device also comprises a rack 15 connected with the shell in a sliding way, and the rack 15 can slide freely; the other end of the first connecting rod 16 is movably connected with the rack 15; in order to guarantee the rotation of first connecting rod 16, all seted up the bar groove at the both ends of first connecting rod 16, follower rod 18 and rack 15 all are connected with the hinge, and hinge swing joint is in the bar groove, and the hinge both can rotate by relative bar groove promptly, can remove by relative bar groove again.
A gear 25 meshed with the rack 15 is further rotatably connected in the shell, the gear 25 is connected with a rotary table 24, the rotary table 24 is fixedly connected with the gear 25, and the rotary table 24 can rotate along with the gear 25.
The whole device also comprises a second connecting rod 23, and the second connecting rod 23 is connected with the shell in a sliding way; one end of the second connecting rod 23 is connected with the insulating plate 9, the other end of the second connecting rod 23 is hinged with a third connecting rod 26, and the third connecting rod 26 is eccentrically hinged with the rotary table 24; when the rotary disc 24 rotates, the third connecting rod 26 drives the second connecting rod 23 to move, and further drives the insulating plate 9 to move.
The device also comprises an extrusion column 81 used for extruding the sliding shaft 21 to move, wherein the extrusion column 81 is wedge-shaped and is provided with an inclined surface; the extrusion column 81 is arranged on the inner wall of the box door 2; when the door 2 is closed, the pressing column 81 presses the slide shaft 21, so that the slide shaft 21 moves; similarly, when the door 2 is opened, the limit of the pressing column 81 on the slide shaft 21 is released, and the slide shaft 21 is reset by the third spring 22.
The invention also provides a using method of the power metering box, which comprises the following specific steps:
when the anti-theft electric door is normally used, the door 2 is closed, and the anti-theft electric switch 8 is normally electrified to work; when the door 2 is opened, the extrusion column 81 of the door 2 can not limit the sliding shaft 21 any more, and at this time, the sliding shaft 21 slides under the elastic force of the third spring 22; the sliding shaft 21 drives the wedge block 20 to move together in the sliding process, the wedge block 20 drives the follower rod 18 to move when moving, and the second spring 17 is compressed; the follower rod 18 can drive the first connecting rod 16 to rotate around the pin shaft when moving, the first connecting rod 16 can drive the rack 15 to move when rotating, the rack 15 can drive the gear 25 to rotate when moving, and further drive the turntable 24 to rotate, the turntable 24 can drive the third connecting rod 26 to move in the rotating process, the third connecting rod 26 can drive the second connecting rod 23 to move when moving, and further drive the insulating plate 9 to move, so that the insulating plate 9 is inserted between the conducting plate 12 and the external wiring terminal 14, and power failure is realized; in the process, due to the extrusion and insertion of the insulating plate 9, the conducting strip 12 drives the guide block 10 to move, and the first spring 11 generates elastic force.
As can be seen from the above description, the power-off of the present invention can be realized by providing the electricity larceny prevention switch 8, providing the electricity larceny prevention switch 8 with the external connection terminal 14 and the movable conducting plate 12, and inserting the insulating plate 9 between the conducting plate 12 and the external connection terminal 14; the movement of the insulating plate 9 is driven by the driving mechanism, and the driving mechanism is linked with the opening and closing of the box door 2, when the box door 2 is opened, the driving mechanism drives the insulating plate 9 to move, so that the insulating plate is inserted between the conducting plate 12 and the external wiring terminal 14, the power failure is completed, and the electricity stealing by lawless persons can be effectively prevented.
The driving mechanism is realized in a mechanical mode, and no additional electric part is needed; when the door 2 is opened, the extrusion column 81 of the door 2 can not limit the sliding shaft 21 any more, and the sliding shaft 21 slides under the action of the elastic force of the third spring 22; the sliding shaft 21 drives the wedge block 20 to move together in the sliding process, the wedge block 20 drives the follower rod 18 to move when moving, and the second spring 17 is compressed; the follower rod 18 can drive the first connecting rod 16 to rotate around the pin shaft when moving, the first connecting rod 16 can drive the rack 15 to move when rotating, the rack 15 can drive the gear 25 to rotate when moving, and further drive the turntable 24 to rotate, the turntable 24 can drive the third connecting rod 26 to move in the rotating process, the third connecting rod 26 can drive the second connecting rod 23 to move when moving, and further drive the insulating plate 9 to move, so that the insulating plate 9 is inserted between the conducting plate 12 and the external wiring terminal 14, and power failure is realized; since lawless persons cannot easily find the matching relationship between the sliding shaft 21 and the extrusion column 81, after the box door 2 is opened, the lawless persons cannot get hold of power supply, and the electricity larceny prevention purpose can be well achieved by using the ingenious and reasonable structure and the matching between the parts.
Example two
With continued reference to fig. 1-8, on the basis of the first embodiment, the entire device further includes a reset mechanism, the reset mechanism includes a sliding clamping strip 31, and the sliding clamping strip 31 is slidably connected with the housing; one end of the sliding clamping strip 31 is connected with a second magnet 30; the sliding clamping strip 31 is also connected with a fourth spring 29, and the fourth spring 29 is connected with the shell; a first magnet 28 is also rotatably connected in the shell, and the first magnet 28 can rotate; the first magnet 28 is provided with a key hole; the key is in matched insertion connection with the key hole; the key is a customized key and is an unusual style in the market, for example, the cross section of the key is triangular or pentagonal or other unusual styles, so that the safety can be improved; the outer wall of the follower rod 18 is connected with a fixture block 19, the fixture block 19 is provided with an inclined surface, and the fixture block 19 is in matched clamping connection with the sliding clamping strip 31.
In order to facilitate the insertion of the key, the door 2 is provided with a through hole 82 for the key to pass through.
The first magnet 28 has an N pole and an S pole, and the second magnet 30 also has an N pole and an S pole; in the initial state, the homopolarity of the two magnets is opposite; when power supply needs to be reset, the first magnet 28 is rotated to make the opposite poles of the first magnet 28 and the second magnet 30 opposite, and the movement of the sliding clamping strip 31 is realized by the adsorption force between the magnets.
The invention also provides a using method of the power metering box, which comprises the following specific steps:
when the anti-theft electric door is normally used, the door 2 is closed, and the anti-theft electric switch 8 is normally electrified to work; when the door 2 is opened, the extrusion column 81 of the door 2 can not limit the sliding shaft 21 any more, and at this time, the sliding shaft 21 slides under the elastic force of the third spring 22; the sliding shaft 21 drives the wedge block 20 to move together in the sliding process, the wedge block 20 drives the follower rod 18 to move when moving, and the second spring 17 is compressed; the follower rod 18 can drive the first connecting rod 16 to rotate around the pin shaft when moving, the first connecting rod 16 can drive the rack 15 to move when rotating, the rack 15 can drive the gear 25 to rotate when moving, and further drive the turntable 24 to rotate, the turntable 24 can drive the third connecting rod 26 to move in the rotating process, the third connecting rod 26 can drive the second connecting rod 23 to move when moving, and further drive the insulating plate 9 to move, so that the insulating plate 9 is inserted between the conducting plate 12 and the external wiring terminal 14, and power failure is realized; meanwhile, the conducting strip 12 drives the guide block 10 to move, and the first spring 11 generates elasticity;
after the door 2 is opened, the follower rod 18 drives the fixture block 19 to move when moving, when the fixture block 19 moves, and touches the sliding clamp strip 31, the sliding clamp strip 31 is extruded, the sliding clamp strip 31 moves towards the direction close to the conducting strip 12, and the fourth spring 29 is compressed to generate elastic force; when the fixture block 19 moves above the sliding strip 31, the sliding strip 31 moves towards the direction close to the follower rod 18 under the action of the elastic force of the fourth spring 29, so that the fixture block 19 is clamped at the top of the sliding strip 31; the insulating plate 9 is inserted between the conducting plate 12 and the external wiring terminal 14, so that the power is cut off and the state is kept;
if the box door 2 is opened when the worker overhauls, after the overhaul is finished, the box door 2 is closed, and at the moment, the extrusion column 81 on the box door 2 extrudes the sliding shaft 21, so that the sliding shaft 21 is reset; since the worker is provided with a corresponding key, the key is inserted into the key hole through the through hole, and the first magnet 28 is rotated; the attraction between the first magnet 28 and the second magnet 30 after rotation is increased, so that the second magnet 30 drives the sliding clamping strip 31 to move in the direction away from the follower rod 18, and further the limiting is released, so that the follower rod 18 drives the clamping block 19 to move and reset under the action of the elastic force of the second spring 17; during the resetting process, the follower rod 18 drives the first connecting rod 16 to rotate reversely, so that the rack 15 moves reversely and the turntable 24 rotates reversely; the third connecting rod 26 drives the second connecting rod 23 to move reversely, so that the insulating plate 9 is pulled away from the space between the conducting plate 12 and the external wiring terminal 14; the conductive plate 12 is restored by the elastic force of the first spring 11 and contacts the external wiring terminal 14, completing the energization.
Through setting up canceling release mechanical system, canceling release mechanical system need be by the key drive, and only the staff is furnished with corresponding key, adopts this mode, both can prevent that lawless persons from stealing the electricity, also can make things convenient for the staff to unpack and overhaul and make things convenient for follow-up power transmission.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. A power metering box comprises a box body and a box door, wherein a circuit-breaking protector and an electric energy meter are installed in the box body, and the electric energy meter is electrically connected with the circuit-breaking protector; the anti-electricity-theft switch comprises a shell, wherein the shell is provided with a pair of external wiring terminals which are symmetrically arranged; a guide block is arranged between the two external wiring terminals and is connected with the shell in a sliding way; one end of the guide block is connected with a first spring, and the other end of the first spring is connected with the shell; the other end of the guide block is connected with a conducting strip, and the two ends of the conducting strip are respectively in contact connection with the two external wiring terminals; the insulation board is used for being inserted between the conducting strip and the external wiring terminal and is connected with a driving mechanism for driving the insulation board to move.
2. The power metering box of claim 1, wherein the drive mechanism comprises a slide shaft slidably coupled within the housing, a third spring coupled to an end of the slide shaft, the third spring coupled to the housing; the other end of the sliding shaft extends out of the shell;
a follower rod is arranged on one side of the sliding shaft and is connected with the shell in a sliding manner; the follower rod is connected with a second spring; the second spring is connected with the shell; the outer wall of the sliding shaft is connected with a wedge-shaped block used for jacking the follower rod; a first connecting rod is further arranged in the shell and is rotatably connected with the shell through a pin shaft to form a lever structure; one end of the first connecting rod is movably connected with the follower rod; the other end of the first connecting rod is movably connected with the rack; a gear meshed with the rack is also rotatably connected in the shell, and the gear is connected with a rotary table;
the second connecting rod is connected with the shell in a sliding manner; one end of the second connecting rod is connected with the insulating plate, the other end of the second connecting rod is hinged with a third connecting rod, and the third connecting rod is eccentrically hinged with the turntable;
the box door is characterized by further comprising an extrusion column for extruding the sliding shaft to move, wherein the extrusion column is wedge-shaped and is arranged on the inner wall of the box door.
3. The power metering box of claim 2, further comprising a reset mechanism, wherein the reset mechanism comprises a sliding strap, wherein the sliding strap is slidably connected to the housing; one end of the sliding clamping strip is connected with a second magnet; the sliding clamping strip is also connected with a fourth spring, and the fourth spring is connected with the shell; a first magnet is also rotatably connected in the shell, and a key hole is formed in the first magnet; the key is matched and spliced with the key hole; the outer wall of the follower rod is connected with a clamping block, the clamping block is provided with an inclined plane, and the clamping block is in adaptive clamping connection with the sliding clamping strip.
4. The power metering box of claim 3, wherein the box door is provided with a through hole for a key to pass through.
5. A method for using a power metering box, which adopts the power metering box of any one of claims 2-4, and is characterized in that the method comprises the following steps:
when the anti-electricity-theft switch is normally used, the box door is closed, and the anti-electricity-theft switch is normally electrified to work; when the box door is opened, the extrusion column of the box door can not limit the sliding shaft any more, and at the moment, the sliding shaft slides under the action of the elastic force of the third spring; the sliding shaft drives the wedge block to move together in the sliding process, the wedge block drives the follower rod to move when moving, and the second spring is compressed; the first connecting rod can be driven to rotate around the pin shaft by the follower rod when the follower rod moves, the rack can be driven to move by the first connecting rod when the first connecting rod rotates, the gear can be driven to rotate by the rack movement, the rotary disc can be driven to rotate, the third connecting rod can be driven to move in the rotating process of the rotary disc, the second connecting rod can be driven to move by the third connecting rod movement, the insulating plate can be driven to move, the insulating plate can enter between the conducting plate and the external wiring terminal in an inserting mode, and power failure is achieved; meanwhile, the conductive sheet can drive the guide block to move, and the first spring generates elastic force.
6. The use method of the power metering box according to claim 5, wherein after the box door is opened, the follower rod drives the clamping block to move when moving, when the clamping block moves, the sliding clamping strip is extruded after the clamping block touches the sliding clamping strip, the sliding clamping strip moves towards the direction close to the conducting strip, and the fourth spring is compressed to generate elastic force; when the clamping block moves above the sliding clamping strip, the sliding clamping strip moves towards the direction close to the follower rod under the action of the elastic force of the fourth spring, so that the clamping block is clamped at the top of the sliding clamping strip; the insulation plate is inserted between the conducting plate and the external wiring terminal, so that the power failure is realized, and the state is kept;
if the box door is opened when the maintenance is carried out by a worker, the box door is closed after the maintenance is finished, and at the moment, the extrusion column on the box door extrudes the sliding shaft, so that the sliding shaft is reset; because the staff is provided with a corresponding key, the key penetrates into the key hole through the through hole, and the first magnet is rotated; the attraction between the first magnet and the second magnet after rotation is increased, so that the second magnet drives the sliding clamping strip to move towards the direction away from the follower rod, the limiting is further relieved, and the follower rod drives the clamping strip to move and reset under the action of the elastic force of the second spring; the follower rod drives the first connecting rod to rotate reversely in the resetting process, so that the rack moves reversely and the turntable rotates reversely; the third connecting rod drives the second connecting rod to move reversely, so that the insulating plate is pulled away from the space between the conducting strip and the external wiring terminal; the conducting plate is reset under the elastic force of the first spring and is contacted with the external wiring terminal to complete the electrification.
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| CN202111183886.4A CN113759156B (en) | 2021-10-11 | 2021-10-11 | Power metering box and use method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115856381A (en) * | 2022-12-21 | 2023-03-28 | 国网黑龙江省电力有限公司供电服务中心 | Metering box capable of preventing electricity from being stolen and using method thereof |
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| CN113759156B (en) | 2024-03-15 |
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