CN115980420A - Electricity meter electricity stealing prevention device - Google Patents
Electricity meter electricity stealing prevention device Download PDFInfo
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- CN115980420A CN115980420A CN202310249638.8A CN202310249638A CN115980420A CN 115980420 A CN115980420 A CN 115980420A CN 202310249638 A CN202310249638 A CN 202310249638A CN 115980420 A CN115980420 A CN 115980420A
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Abstract
The invention relates to the field of electricity stealing prevention tools, in particular to an electricity stealing prevention device for an ammeter, which comprises: the device comprises a covering plate, a locking mechanism, an assembling plate, a limiting mechanism and a supporting plate; the invention shields the plurality of ammeters through the plurality of covering plates, when a user conducts electricity stealing activity, the covering plate opposite to the electricity stealing user ammeter is upwards drawn out, the alarm gives an alarm, and the sliding sleeve one adjacent to the covering plate is blocked by the inserting block one, so that the drawn covering plate cannot be reset, and a worker can judge which user conducts electricity stealing according to the blocking condition of the sliding sleeve one adjacent to the covering plate, thereby preventing the user from causing great economic loss to the power industry through electricity stealing, and simultaneously bringing great electricity utilization potential safety hazards to the user.
Description
Technical Field
The invention relates to the field of electricity stealing prevention tools, in particular to an electricity stealing prevention device for an ammeter.
Background
The ammeter is the instrument that is used for measuring the electric energy, measures monthly user's power consumption through the ammeter to this charges, but ammeter electricity larceny prevention means is single, and some ammeters only use to prevent to steal the electricity, can not warn according to the condition, also can not be in the timely suggestion of ammeter after being torn open to user's electricity stealing gimmick is more and more diversified, disguised. The user steals electricity through reforming transform the ammeter, for example increase methods such as shunt resistance, divider resistance, modification pulse in the ammeter and change the table and steal electricity, these steal the electricity gimmick very hidden, are difficult to discover with the naked eye, have brought very big vexation for power consumption inspection work, cause the electric quantity to run off seriously, the user is through stealing the electricity, to the economic loss that the electric power industry caused, also brought great power consumption potential safety hazard simultaneously for user self.
Disclosure of Invention
Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide an electricity meter electricity stealing prevention device, which prevents electricity stealing through a cover plate, and the present invention achieves the above object by the following technical solutions:
an electricity meter electricity larceny prevention device, comprising: the device comprises a covering plate, a locking mechanism, an assembling plate, a limiting mechanism and a supporting plate;
the number of the covering plates is multiple, the covering plates are mutually connected and respectively shield a row of electric meters in the horizontal direction in an electric meter box, the assembling plate and the limiting mechanism are arranged on two sides of the covering plates, the supporting plates are multiple and are fixed in the electric meter box, the supporting plates are respectively arranged at the lower ends of the joints of the covering plates, the lower ends of the two side wall surfaces of the covering plates are respectively provided with a first sliding sleeve and a first inserting block, the lower end of the sliding groove extends out of the first sliding sleeve, the first inserting block is matched with the sliding groove in shape, and a socket is formed in the wall surface of the first inserting block, which forms a ninety-degree included angle with the covering plates;
the stop gear quantity is the same with the overlay, and installs mutually with the overlay respectively, stop gear includes: the clamping device comprises a transmission rod, a first clamping block, a connector, a slideway, a first spring and a first sliding block, wherein one end of the transmission rod is arranged in a first sliding sleeve, the end part of the transmission rod is provided with a second sliding block, the other end of the transmission rod extends into a socket of the first inserting block, the end part of the first inserting block, which is positioned in the socket, is provided with the connector, the first clamping block is arranged on the second sliding block, the length of the first clamping block is smaller than that of the socket of the first inserting block, the upper end surface and the lower end surface of the first clamping block are relatively obliquely arranged, the upper end surface and the lower end surface of the first clamping block are communicated with a first connecting groove and a second connecting groove, the shape of the first connecting groove is matched with the connector, one end of the second connecting groove is communicated with the first connecting groove, and the other end of the first clamping block extends out of the first clamping block;
the locking mechanism includes: casing, second sliding sleeve, locating plate, second fixture block, miniature step motor, limiting plate, switch, alarm, machine controller, welded fastening is passed through on the ammeter case to casing one end, the casing other end is fixed with second sliding sleeve, second sliding sleeve is the same with sliding sleeve one structure, the locating plate is located the casing, locating plate one end extends into second sliding sleeve, and locating plate one end is connected with third slider, the constant head tank is seted up to locating plate other end top surface, be connected with second spring on the locating plate, install second fixture block on the third slider, second fixture block is the same with one structure of fixture block, miniature step motor is located the locating plate top, the limiting plate middle part is connected on miniature step motor's axle, and wherein the junction of limiting plate and miniature step motor axle is provided with torsion spring, switch fixes on the perpendicular wall of casing.
The assembling plate is characterized in that one end of the assembling plate is fixed on the electric meter box through welding, the other end of the assembling plate is fixed with a second inserting block, and the shape of the second inserting block is identical to that of the sliding groove.
Preferably, a wireless signal transmitter is further arranged in the shell.
Preferably, miniature step motor is connected with the ammeter electricity, switch passes through circuit one end and connects the ammeter, and the alarm is connected to the other end, miniature step motor is connected to the motor controller.
Preferably, the connector is cylindrical, and the diameter of the connector is larger than the thickness of the transmission rod.
Preferably, the first sliding sleeve is provided with an L-shaped sliding groove.
Preferably, the upper end and the lower end of the two side wall surfaces of the covering plate and the observation window forming an included angle of ninety degrees are respectively provided with a first sliding sleeve and a first inserting block.
Preferably, a slide way is arranged on the wall surface of the transmission rod opposite to the cover plate, a first spring is arranged in the slide way, one end of the first slide block is meshed into the slide way and connected with the first spring, and the other end of the first slide block is fixed on the cover plate.
The invention has the beneficial effects that:
the invention shields the plurality of electric meters through the plurality of covering plates, when a user steals electricity, the covering plate opposite to the electric meter of the electricity stealing user is upwards drawn out, the alarm gives an alarm at the moment, the sliding sleeve one adjacent to the covering plate is blocked by the inserting block one, the drawn covering plate cannot be reset, and a worker can judge which user steals electricity according to the blocking condition of the sliding sleeve one adjacent to the covering plate, so that the economic loss of the power industry caused by the electricity stealing of the user is prevented, and meanwhile, the great potential safety hazard of electricity utilization is brought to the user.
The invention can detect a plurality of electric meters by one alarm, thereby saving the equipment cost.
When a worker inspects a plurality of electric meters, signals are transmitted to the motor controller through the wireless remote controller, the motor controller controls the miniature stepping motor to turn right and left, so that the limiting plate is horizontal, the locking alarm state is relieved, the worker can directly pull out any covering plate to inspect the electric meters, simplicity and convenience are realized, and the covering plate is prevented from being detached by unscrewing a plurality of screws.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic diagram of a side group structure according to the present invention.
FIG. 3 is a first schematic view of a covering plate according to the present invention.
Fig. 4 is a bottom view of the cover plate of the present invention.
Fig. 5 is a schematic structural view of the limiting mechanism of the present invention.
Fig. 6 is a schematic view of a partial structure of the limiting mechanism of the present invention.
FIG. 7 is a schematic view of the locking mechanism of the present invention.
Fig. 8 is a schematic view of the locking mechanism of the present invention locking a position limiting mechanism.
FIG. 9 is a schematic view of the unlocking motion of the locking mechanism of the present invention.
Fig. 10 is a schematic diagram of a second cover plate structure according to the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains, however, the present invention may be implemented in various forms, and thus, the present invention is not limited to the embodiments described below, and in addition, components not connected to the present invention will be omitted from the drawings for more clear description of the present invention.
As shown in fig. 1-2, an electricity larceny prevention device for an electricity meter comprises: the device comprises a covering plate 1, a locking mechanism 2, an assembling plate 3, a limiting mechanism 4 and a supporting plate 5;
the number of the cover plates 1 is multiple, the cover plates 1 are connected with each other and respectively shield a row of electric meters 7 in the horizontal direction in an electric meter box, the assembling plates 3 and the limiting mechanisms 4 are arranged on two sides of the cover plates 1, the assembling plates 3 and the limiting mechanisms 4 are used for limiting the cover plates 1 in the horizontal direction, the number of the supporting plates 5 is multiple, the supporting plates 5 are respectively arranged at the lower ends of the joints of the cover plates 1, the supporting plates 5 are used for supporting the cover plates 1, and the cover plates 1 are exemplified by three, namely a left cover plate 1-1, a middle cover plate 1-2 and a right cover plate 1-3;
as shown in fig. 3, an observation window 11 is formed in the wall surface at the upper end of the cover plate 1, a first sliding sleeve 12 and a first insertion block 13 are respectively arranged at the lower ends of two side wall surfaces of the cover plate 1 and the observation window 11, which form a ninety-degree included angle, as shown in fig. 4, the first sliding sleeve 12 is provided with an L-shaped sliding chute 121, the lower end of the sliding chute 121 extends out of the first sliding sleeve 12, a strip-shaped through hole 122 is formed in one side of the lower end surface of the first sliding sleeve 12, one end of the strip-shaped through hole 122 is communicated with the middle of the first sliding sleeve 12, the wall surface of the first sliding sleeve 12, which is opposite to the sliding chute 121, the first insertion block 13 is matched with the sliding chute 121 and is L-shaped, a socket 131 is formed in the wall surface of the first insertion block 13, which forms a ninety-degree included angle with the cover plate 1, the cover plates 1-1 are formed in the wall surfaces, the left side, the middle cover plates 1-2 and the right side cover plates 1-3 are mutually connected with the first insertion block 13 through the sliding sleeve 12, so as to transversely and longitudinally position the left side cover plates 1-1, 1-2 and the right side cover plates 1-3;
the number of the limiting mechanisms 4 is the same as that of the covering plate 1, and the limiting mechanisms 4 are respectively installed on the covering plate 1, as shown in fig. 5, each limiting mechanism 4 includes: the sliding sleeve comprises a transmission rod 41, a first clamping block 42, a connecting head 43, a slide way 44, a first spring 45 and a first slide block 46, wherein one end of the transmission rod 41 extends into the first sliding sleeve 12 along the open face of the first sliding sleeve 12, the end part of the transmission rod is provided with a second slide block 411, the second slide block 411 is attached to the inside of the first sliding sleeve 12, the other end of the transmission rod 41 extends into a socket 131 of a first insert block 13, the end part of the first insert block 13, which is positioned in the socket 131, is provided with the connecting head 43, the connecting head 43 is cylindrical, the diameter of the connecting head 43 is larger than the thickness of the transmission rod 41, the slide way 44 is arranged on the wall surface of the transmission rod 41 opposite to the cover plate 1, the slide way 45 is arranged in the slide way 44, one end of the first slide block 46 is engaged into the slide way 44 and connected with the first spring 45, the other end of the connecting rod is fixed on the cover plate 1, the transmission rod 41 can move left and right, a first clamping block 42 is installed on the second sliding block 411, the length of the first clamping block 42 is smaller than that of the insertion opening 131 of the first insertion block 13, the upper end face and the lower end face of the first clamping block 42 are oppositely inclined, as shown in fig. 6, the upper end face and the lower end face of the first clamping block 42 are communicated with a first connecting groove 421 and a second connecting groove 422, the first connecting groove 421 is cylindrical, the diameter of the first connecting groove 421 is larger than that of the connecting head 43, one end of the second connecting groove 422 is communicated with the first connecting groove 421, the other end of the second connecting groove 422 extends out of the first clamping block 42, and the width of the second connecting groove 422 is larger than that of the transmission rod 41;
as shown in fig. 7, the lock mechanism 2 includes: a shell 21, a sliding sleeve II 22, a positioning plate 23, a clamping block II 24, a micro stepping motor 25, a limiting plate 26, a power switch 27, an alarm 28 and a motor controller 29, one end of the shell 21 is fixed on the electric meter box by welding, the other end of the shell 21 is fixed with a sliding sleeve II 22, the second sliding sleeve 22 has the same structure as the first sliding sleeve 12, the first insert 13 of the right cover plate 1-3 is engaged in the second sliding sleeve 22, the second sliding sleeve 22 is communicated with the inside of the housing 21, the positioning plate 23 is positioned in the housing 21, one end of the positioning plate 23 extends into the second sliding sleeve 22, and the end part of the positioning plate 23 positioned in the sliding sleeve II 22 is connected with a sliding block III 231, the top surface of the other end of the positioning plate 23 is provided with a positioning groove 232 extending towards the middle part, the positioning plate 23 is connected with a second spring 2020, the third slide block 231 is provided with a second clamping block 24, the second clamping block 24 and the first clamping block 42 have the same structure, the micro stepping motor 25 is positioned above the positioning plate 23, the micro stepping motor 25 is electrically connected with the ammeter 6, the middle part of the limit plate 26 is connected with the shaft of the micro stepping motor 25, wherein a torsion spring (not shown) is arranged at the connection position of the limiting plate 26 and the shaft of the micro stepping motor 25, the lower end of the initial limiting plate 26 is obliquely abutted against the top surface of the positioning plate 23, and the torsion spring is twisted with stress, the power switch 27 is fixed on the vertical wall surface of the housing 21, one end of the power switch 27 is connected with the electric meter 6 through a line, the other end is connected with the alarm 28, the motor controller 29 is connected with the micro stepping motor 25, a worker transmits a signal to the motor controller 29 through a wireless remote controller, the motor controller 29 controls the micro stepping motor 25 to rotate forwards or overturns by ninety degrees, and a wireless signal emitter (not shown in the figure) is further arranged in the shell 21;
one end of the assembling plate 3 is fixed on the electric meter box through welding, the other end of the assembling plate 3 is fixedly provided with a second inserting block, the shape of the second inserting block is matched with that of the sliding groove 121, and the second inserting block of the assembling plate 3 is inserted into the first sliding sleeve 12 of the left covering plate 1-1.
When the covering plate 1 is installed, a worker firstly inserts the second inserting block 12 of the assembly plate 3 downwards into the first sliding sleeve 12 of the left covering plate 1-1, the second inserting block abuts against the first clamping block 42, the first clamping block 42 moves out of the sliding groove 121, and meanwhile, the transmission rod 41 drives the connecting head 43 to move out of the socket 131 of the first inserting block 13; the worker then installs the middle covering plate 1-2 downwards, the first inserting block 13 of the left covering plate 1-1 abuts against the first clamping block 42 on the middle covering plate 1-2 and moves out of the sliding groove 121, and the connecting head 43 on the left covering plate 1-1 is inserted into the first connecting groove 421 of the first clamping block 42 on the middle covering plate 1-2; finally, the worker downwards moves the right cover plate 1-3 again, the actions are repeated, the compression of the first springs 45 and the second springs 20 is completed, and the first springs 45 and the second springs 20 cannot return due to the blocking of the second insertion block;
as shown in fig. 10, the upper and lower ends of the two side walls of the cover plate 1 and the observation window 11 forming an included angle of ninety degrees are respectively provided with a sliding sleeve one 12 and an insertion block one 13 to increase the strength when the plurality of cover plates 1 are connected with each other.
The working principle of the invention is as follows:
when the electricity stealing user conducts electricity stealing activities, the electricity stealing user needs to pull out one covering plate 1 upwards, for example, pull out the middle covering plate 1-2, as shown in fig. 8, the limiting mechanism 4 installed on the right covering plate 1-3 is reset through the horizontal movement of the first spring 45, the positioning plate 23 drives the second clamping block 24 to reset through the second spring 20, at this time, the second clamping block 24 is inserted into the socket 131 of the first insertion block 13 on the right covering plate 1-3, the first clamping block 42 is inserted into the first sliding sleeve 12, the limiting plate 26 is reset and rotated into a vertical shape through the torsion spring, the lower end of the limiting plate 26 is located at one end inside the positioning groove 232, the upper end of the limiting plate 26 abuts against the power switch 27, so that the alarm 28 gives an alarm, the wireless signal transmitter sends an alarm signal to the power company, if the electricity stealing user wants to prevent the alarm 28 from giving an alarm by inserting the middle covering plate 1-2 back downwards, when an electricity stealing user inserts the first insert 13 of the middle cover plate 1-2 into the first slide sleeve 12 of the right cover plate 1-3, because the right cover plate 1-3 is connected with the second insert 24 through the connecting head 43 of the transmission rod 41 to form linkage, the positioning plate 23 moves horizontally, then the wall surface of the positioning groove 232 abuts against the lower end of the limiting plate 26, the upper end of the limiting plate 26 abuts against the power switch 27, so that the second clamping block 24 is kept in the socket 131 of the first insert 13 on the right cover plate 1-3, the first clamping block 42 is kept in the first slide sleeve 12, namely the second clamping block 24 fixes the right cover plate 1-3, the right cover plate 1-3 cannot be drawn out, the first clamping block 42 on the right cover plate 1-3 seals the sliding groove 121 of the first slide sleeve 12, the middle cover plate 1-2 cannot be reset, and a worker seals the first sliding sleeve 12 through the first clamping block 42 on the right cover plate 1-3, the user can know which user steals electricity, even if the user steals electricity after power failure or power failure, when the user has an incoming call, the alarm 28 can also alarm, when the middle covering plate 1-2 needs to be reset again, the user needs to go to the field, as shown in fig. 9, the user transmits a signal to the motor controller 29 through the wireless remote controller, the motor controller 29 controls the micro stepping motor 25 to overturn for ninety degrees, so that the limiting plate 26 is horizontal, and the locking of the positioning plate 23 is released.
If when the staff examined the ammeter, the staff passed through wireless remote control and transmitted signal for motor controller 29, and motor controller 29 control miniature step motor 25 ninety degree upsets to limiting plate 26 is the level form, does not lock locating plate 23, and the staff can directly take out arbitrary overlay 1 and inspect the ammeter.
Claims (7)
1. An electricity meter electricity larceny prevention device, comprising: the device comprises a covering plate (1), a locking mechanism (2), an assembling plate (3), a limiting mechanism (4) and a supporting plate (5); the method is characterized in that: the number of the covering plates (1) is multiple, the covering plates (1) are connected with one another and respectively shield a row of electric meters (7) in an electric meter box in the horizontal direction, the assembling plate (3) and the limiting mechanism (4) are arranged on two sides of the covering plates (1), the supporting plates (5) are multiple and fixed in the electric meter box, the supporting plates (5) are respectively arranged at the lower ends of the joints of the covering plates (1), the lower ends of the two side wall surfaces of the covering plates (1) are respectively provided with a first sliding sleeve (12) and a first inserting block (13), the lower end of the sliding groove (121) extends out of the first sliding sleeve (12), the shape of the first inserting block (13) is matched with the sliding groove (121), and a jack (131) is formed in the wall surface of the first inserting block (13) and the covering plates (1) at a ninety-degree included angle;
the number of the limiting mechanisms (4) is the same as that of the covering plates (1), the limiting mechanisms are respectively installed on the covering plates (1), and each limiting mechanism (4) comprises: the sliding block mechanism comprises a transmission rod (41), a first clamping block (42), a connecting head (43), a sliding way (44), a first spring (45) and a first sliding block (46), wherein one end of the transmission rod (41) is arranged in a sliding sleeve (12) along the inner side of the sliding sleeve, the end part of the transmission rod (41) is provided with a second sliding block (411), the other end of the transmission rod (41) extends into a socket (131) of a first insertion block (13), the connecting head (43) is arranged at the end part of the first insertion block (13) which is positioned in the socket (131), the first clamping block (42) is arranged on the second sliding block (411), the length of the first clamping block (42) is smaller than that of the socket (131) of the first insertion block (13), the upper end surface and the lower end surface of the first clamping block (42) are relatively obliquely arranged, the upper end surface and the lower end surface of the first clamping block (42) are communicated with a first connecting groove (421) and a second connecting groove (422), the shape of the first connecting groove (421) is matched with the connecting head (43), one end of the second connecting groove (422) is communicated with the first connecting groove (421), and the other end of the first clamping block (42) extends out;
the locking mechanism (2) comprises: a shell (21), a sliding sleeve II (22), a positioning plate (23), a clamping block II (24), a micro stepping motor (25), a limiting plate (26), a power switch (27), an alarm (28) and a motor controller (29), one end of the shell (21) is fixed on the electric meter box by welding, the other end of the shell (21) is fixed with a second sliding sleeve (22), the second sliding sleeve (22) has the same structure as the first sliding sleeve (12), the positioning plate (23) is positioned in the shell (21), one end of the positioning plate (23) extends into the second sliding sleeve (22), one end of the positioning plate (23) is connected with a third sliding block (231), the top surface of the other end of the positioning plate (23) is provided with a positioning groove (232), a second spring (20) is connected to the positioning plate (23), a second clamping block (24) is installed on the third sliding block (231), the second clamping block (24) has the same structure as the first clamping block (42), the micro stepping motor (25) is positioned above the positioning plate (23), the middle part of the limit plate (26) is connected with the shaft of the micro stepping motor (25), wherein a torsion spring is arranged at the connection part of the limiting plate (26) and the shaft of the micro stepping motor (25), the power switch (27) is fixed on the vertical wall surface of the shell (21);
the electric meter box is characterized in that one end of the assembling plate (3) is fixed on the electric meter box through welding, the other end of the assembling plate (3) is fixed with a second inserting block, and the shape of the second inserting block is identical to that of the sliding groove (121).
2. The electricity meter of claim 1, further comprising a wireless signal transmitter disposed within the housing.
3. An electricity meter for preventing fraudulent use of electricity according to claim 1, characterized in that: miniature step motor (25) are connected with ammeter (6) electricity, switch (27) pass through circuit one end and connect ammeter (6), and alarm (28) are connected to the other end, miniature step motor (25) are connected in motor controller (29).
4. The electricity meter of claim 1, wherein: the connector (43) is cylindrical, and the diameter of the connector (43) is larger than the thickness of the transmission rod (41).
5. An electricity meter for preventing fraudulent use of electricity according to claim 1, characterized in that: the sliding sleeve I (12) is provided with an L-shaped sliding groove (121).
6. An electricity meter for preventing fraudulent use of electricity according to claim 1, characterized in that: the upper end and the lower end of two side wall surfaces of which the angles between the covering plate (1) and the observation window (11) are ninety degrees are respectively provided with a sliding sleeve I (12) and an inserting block I (13).
7. An electricity meter for preventing fraudulent use of electricity according to claim 1, characterized in that: the wall surface of the transmission rod (41) opposite to the wall surface of the covering plate (1) is provided with a slide way (44), a first spring (45) is arranged in the slide way (44), one end of a first sliding block (46) is meshed into the slide way (44) and connected with the first spring (45), and the other end of the first sliding block is fixed on the covering plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310249638.8A CN115980420B (en) | 2023-03-15 | 2023-03-15 | Electricity meter anti-theft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310249638.8A CN115980420B (en) | 2023-03-15 | 2023-03-15 | Electricity meter anti-theft device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115980420A true CN115980420A (en) | 2023-04-18 |
| CN115980420B CN115980420B (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310249638.8A Active CN115980420B (en) | 2023-03-15 | 2023-03-15 | Electricity meter anti-theft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115980420B (en) |
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| CN114355005A (en) * | 2022-01-05 | 2022-04-15 | 毛小竹 | Electricity stealing prevention electric energy meter and use method thereof |
| CN115561499A (en) * | 2022-09-09 | 2023-01-03 | 徐媛 | Ammeter box with electricity stealing prevention and alarm functions |
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2023
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050174238A1 (en) * | 2001-05-29 | 2005-08-11 | Knut Foseide | Theft protection plug for electrical devices |
| JP2004226119A (en) * | 2003-01-20 | 2004-08-12 | Tokyo Electric Power Co Inc:The | Terminal cover of watt-hour meter |
| CN201532410U (en) * | 2009-11-26 | 2010-07-21 | 公安县文丰电器有限公司 | Combined type ammeter box |
| CN106018903A (en) * | 2016-06-12 | 2016-10-12 | 南宁思飞电子科技有限公司 | Intelligent ammeter case |
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| CN115561499A (en) * | 2022-09-09 | 2023-01-03 | 徐媛 | Ammeter box with electricity stealing prevention and alarm functions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115980420B (en) | 2023-06-02 |
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