CN111219101B - Anti-electricity-theft safety lock for electric meter box - Google Patents
Anti-electricity-theft safety lock for electric meter box Download PDFInfo
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- CN111219101B CN111219101B CN201911191268.7A CN201911191268A CN111219101B CN 111219101 B CN111219101 B CN 111219101B CN 201911191268 A CN201911191268 A CN 201911191268A CN 111219101 B CN111219101 B CN 111219101B
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- groove
- cylindrical groove
- electric meter
- steel pipe
- cast steel
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
- E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/0038—Operating or controlling locks or other fastening devices by electric or magnetic means using permanent magnets
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/02—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means
- E05B47/026—Movement of the bolt by electromagnetic means; Adaptation of locks, latches, or parts thereof, for movement of the bolt by electromagnetic means the bolt moving rectilinearly
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special 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
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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
Abstract
The invention discloses an electricity larceny prevention safety lock for an electric meter box, which comprises a fixed seat fixedly arranged on a box door of the electric meter and two fixed plates fixedly arranged on the box wall of the electric meter, wherein a through groove is formed in the box door of the electric meter, two connecting rods are movably arranged in the through groove, two ends of each connecting rod are respectively and fixedly connected with a connector and a fixed block, the two connectors are arranged in the fixed seat in a sliding manner, corresponding fixed blocks and the fixed plates are jointly provided with an anti-theft assembly, each anti-theft assembly comprises a limiting groove arranged on the corresponding fixed plate, a first cylindrical groove arranged on the corresponding fixed block and a mounting groove, and each mounting groove is communicated with the corresponding first cylindrical groove. The invention has simple structure, can effectively avoid the behaviors that lawless persons open the door of the electric meter privately and steal electric power illegally, and can change the setting mode of the device regularly by workers, thereby confusing the observation of the lawless persons.
Description
Technical Field
The invention relates to the technical field of electric meter box theft prevention, in particular to an electricity larceny prevention safety lock for an electric meter box.
Background
Along with the development of economy, the living standard of people is gradually improved, most of families buy a large number of household appliances such as refrigerators, washing machines, air conditioners and the like, along with the improvement of technology and the improvement of requirements of people, the power of most of household appliances is gradually increased, the power consumption is increased, lawless persons usually change circuits in an electric meter box to reduce the expenditure, so that the consumption of electric quantity counted by the electric meter is reduced, and the behavior belongs to illegal behaviors and even follows criminal responsibility.
The existing electric meter box usually uses a copper lock to lock the box door, for lawless persons, the electricity larceny prevention means is too backward, the lawless persons can easily pry open the copper lock to change the circuit, if a dial type coded lock or other mechanical locks are adopted, a better electricity larceny prevention effect can be achieved at the initial installation stage, but as time goes on, the lawless persons can know the password in a snooping and eavesdropping mode and still can cause the occurrence of an electricity larceny case, therefore, the electricity larceny prevention safety lock for the electric meter box is provided.
Disclosure of Invention
The invention aims to solve the problem that actions such as circuit modification by private and electricity stealing are caused by the fact that a lock on an electric meter box is easily pried by a lawless person in the prior art, and provides an electricity stealing prevention safety lock for the electric meter box.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electricity larceny prevention safety lock for an electric meter box comprises a fixed seat fixedly mounted on a box door of the electric meter and two fixed plates fixedly mounted on the box wall of the electric meter, wherein a through groove is formed in the box door of the electric meter, two connecting rods are movably arranged in the through groove, two ends of each connecting rod are respectively and fixedly connected with a connector and a fixed block, the two connectors are arranged in the fixed seat in a sliding manner, and an anti-theft assembly is arranged on the corresponding fixed block and the corresponding fixed plate;
every the theftproof subassembly is all including offering the spacing groove on corresponding the fixed plate and offering first cylindrical groove, the mounting groove on corresponding the fixed block, and every mounting groove all is linked together with the first cylindrical groove that corresponds, every all be equipped with straight board and first excitation coil, every in the mounting groove first cylindrical inslot all is equipped with first cast steel pipe, and is connected with first spring, every between first cast steel pipe and the straight board that corresponds first cast steel intraductal permanent magnet that all inlays.
Preferably, every all be equipped with the connector in the connector, and every first excitation coil all is connected, two with corresponding connector electricity first excitation coil specification is different.
Preferably, each fixing plate is internally provided with a third cylindrical groove, the third cylindrical groove is elastically connected with a second cast steel pipe through a second spring, each fixing block is internally provided with a second cylindrical groove matched with the corresponding third cylindrical groove in specification, and a magnetic block is arranged in the second cylindrical groove.
Preferably, every equal fixed mounting has second excitation coil in the mounting groove, and the axis of second excitation coil and the axis that corresponds the magnetic path are located same straight line, every second excitation coil all is connected with the connector electricity.
Preferably, the distance between the limiting groove and the third cylindrical groove on the same fixing plate is greater than the distance between the corresponding first cylindrical groove and the corresponding second cylindrical groove.
The invention has the beneficial effects that:
1. through setting up fixing base and apron, can play the fixed action to connector and connecting rod to the apron inboard is provided with the convex platform, and the convex platform can play fixed, bearing effect to the connecting rod and the connector of upside on the one hand, and on the other hand can shelter from each device, makes the theftproof safety lock more pleasing to the eye.
2. Through setting up theftproof subassemblies such as spacing groove, first column shape groove, mounting groove, straight board, first excitation coil, the accessible is cast the steel pipe and is realized being connected of fixed plate and fixed block with the block that corresponds the cell body, guarantees that ammeter case door closed condition down both do not take place relative displacement.
3. Under the natural state, first cast steel pipe stretches out first cylindrical groove, and the degree of depth that stretches out is greater than the spacing groove, consequently when first cast steel pipe inserts the spacing inslot, can offset with the diapire of spacing groove completely to reduce the angle of first cast steel pipe slope, make the connection between the two more stable.
4. The specification of two first excitation coils is different, and the ammeter case door need be let in the electric current of equidimension in to two excitation coils to the specification of the connector of connector department only matches with the specification of the portable power that the staff carried, and lawless persons both can't acquire the portable power of the same specification, can't learn the size of the electric current that needs to let in again, consequently hardly opens the ammeter chamber door through non-violent means.
5. By using the cast steel pipe as the clamping piece, the strength of the anti-electricity-theft safety lock can be ensured, and adverse effects of the cast steel pipe on the magnetic field inside the safety lock can be avoided.
6. Under the inertia thinking, lawless persons can supply currents with the same size and the same direction to the magnet exciting coils, so that the second cast steel pipe can rapidly extend into the second cylindrical groove under the action of the second magnet exciting coils and the magnetic blocks, the fixed block is prevented from moving, and the door of the electric meter box is kept locked.
7. Through setting up two excitation coils, accessible changes excitation coil number of turns, iron core intensity, wire around establishing modes such as direction and obtain the theftproof subassembly of different unblock modes to greatly enriched the using-way of anti-electricity-theft safety lock, made it more difficult by lawless persons to open.
In conclusion, the invention has simple structure, can effectively avoid the behaviors that lawless persons open the door of the electric meter and illegally steal electric power, and can regularly change the arrangement mode of the device by working personnel, thereby confusing the observation of the lawless persons.
Drawings
FIG. 1 is a schematic structural view of an electricity larceny prevention safety lock for an electricity meter box according to the present invention;
FIG. 2 is a schematic structural diagram of a fastening device in an electricity larceny prevention safety lock for an electricity meter box according to the present invention;
fig. 3 is a schematic structural diagram of a fixing plate in the embodiment 1 of the electricity larceny prevention safety lock for the electric meter box according to the present invention;
fig. 4 is a schematic view of an internal structure of a fixing block in the embodiment 1 of the electricity larceny prevention safety lock for the electric meter box according to the present invention;
fig. 5 is a schematic structural view of an electricity larceny prevention safety lock for an electricity meter box according to an embodiment 1 of the invention, wherein a fixing block is matched with a fixing plate;
FIG. 6 is a schematic structural diagram of a fixing plate in the anti-electricity-theft safety lock for an electricity meter box of the embodiment 2 of the present invention;
fig. 7 is a schematic view of an internal structure of a fixing block in the embodiment 2 of the electricity larceny prevention safety lock for the electric meter box according to the present invention;
fig. 8 is a schematic structural view of an electricity larceny prevention safety lock for an electricity meter box in the embodiment 2 of the invention, wherein a fixing block is matched with a fixing plate for use.
In the figure: the electric meter comprises a 1 electric meter box door, a 2 fixing seat, a 3 connecting head, a 4 cover plate, a 5 connecting rod, a 6 electric meter box wall, a 7 fixing block, a 701 first cylindrical groove, a 702 mounting groove, a 703 second cylindrical groove, a 8 fixing plate, a 801 limiting groove, an 802 third cylindrical groove, a 9 first cast steel pipe, a 10 straight plate, 11 first magnet exciting coil, 12 second cast steel pipe, 13 second magnet exciting coil and 14 magnetic blocks.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 1-5, an electricity larceny prevention safety lock for an electric meter box comprises a fixed seat 2 fixedly installed on a box door 1 of the electric meter and two fixed plates 8 fixedly installed on box walls 6 of the electric meter, wherein a through groove is formed in the box door 1 of the electric meter, two connecting rods 5 are movably arranged in the through groove, two ends of each connecting rod 5 are respectively and fixedly connected with a connector 3 and a fixed block 7, the two connectors 3 are arranged in the fixed seat 2 in a sliding manner, and the corresponding fixed blocks 7 and the fixed plates 8 are provided with an anti-theft component;
each anti-theft component comprises a limiting groove 801 arranged on the corresponding fixing plate 8, a first cylindrical groove 701 arranged on the corresponding fixing block 7 and mounting grooves 702, each mounting groove is communicated with the corresponding first cylindrical groove 701, a straight plate 10 and a first excitation coil 11 are arranged in each mounting groove 702, a first cast steel pipe 9 is arranged in each first cylindrical groove 701, a first spring is connected between each first cast steel pipe 9 and the corresponding straight plate 10, and a permanent magnet is embedded in each first cast steel pipe 9;
in a natural state, the length of the first spring is greater than half of the length of the first cylindrical groove 701, the first cast steel pipe 9 extends out of the first cylindrical groove 701, and the extending length is greater than the depth of the limiting groove 801;
In the invention, a plurality of wire connectors are arranged in each connector 3, each first excitation coil 11 is electrically connected with the corresponding wire connector, and the specifications of the two first excitation coils 11 are different.
The thickness that fixed plate 8 is on a parallel with 1 both sides of ammeter case door is greater than the thickness at fixed plate 8 middle part, only when 7 down or upwards slip of fixed block to breaking away from behind fixed plate 8, ammeter case door 1 just can open, otherwise fixed block 7 offsets with the lateral wall of fixed plate 8, ammeter case door 1 still can't remove.
The working principle of the embodiment is as follows: when the door 1 of the electric meter is closed, the portable power supply is connected through the connector on the connector 3, and the magnetic field generated after the first excitation coil 11 is powered on attracts the first cast-steel tube 9 to approach the direction of the straight plate 10 (actually, the magnetic field generates attraction to the permanent magnet in the first cast-steel tube 9, the permanent magnet is not shown in the figure), so that the first cast-steel tube 9 completely enters the first cylindrical groove 701;
two fixing blocks 7 extend into the ammeter box from the through groove through the two connecting rods 5, then the two connecting rods 5 are respectively moved to the upper end and the lower end of the through groove, at the moment, the first cylindrical groove 701 is just opposite to the limiting groove 801, then the portable power supply is turned off, under the action of the first spring, the first cast steel pipe 9 extends out of the first cylindrical groove 701 again, and because the extending length of the first spring is larger than the depth of the limiting groove 801 in a natural state, the first cast steel pipe 9 transversely spans the first cylindrical groove 701 and the limiting groove 801 to play a role in fixing the position of the fixing block 7;
the fixed seat 2, the connector 3, the connecting rod 5 and the fixed block 7 can be regarded as a whole, the fixed seat is fixed with a fixed plate 8 on the wall 6 of the electric meter box, namely the door 1 of the electric meter box is fixed with the wall 6 of the electric meter box, then the cover plate 4 is arranged on the fixed seat 2 by using bolts, and the cover plate 4 can protect the connector 3 and beautify the connector;
when needing to open electric meter box door 1, be connected portable power source and connector once more, make first cast steel pipe 9 get into first cylindrical groove 701, fixed block 7 and the separation of fixed plate 8, move connector 3 and connecting rod 5 to running through the groove middle part and can open electric meter box door 1, and the specification of two first excitation coil is different, the electric current size of required access is also different, also can't open the electric meter box door if the current strength does not reach the corresponding value, and lawless persons do not have the portable power source of adaptation and just can't open the box door, can only destroy the cabinet door through the violence means, be easily discovered by people and destroy the vestige.
Example two
As shown in fig. 6 to 8, the present embodiment is different from embodiment 1 in that: a third cylindrical groove 802 is further formed in each fixing plate 8, a second cast steel pipe 12 is elastically connected to the inside of the third cylindrical groove 802 through a second spring, a permanent magnet is also arranged in the second cast steel pipe 12, a second cylindrical groove 703 matched with the corresponding third cylindrical groove 802 in specification is formed in each fixing block 7, and a magnetic block 14 is arranged in the second cylindrical groove 703.
Equal fixed mounting has second excitation coil 13 in every mounting groove 702, and the axis of second excitation coil 13 is located same straight line with the axis that corresponds magnetic block 14, and every second excitation coil 13 all is connected with the connector electricity, and the wire in first excitation coil 11 and the second excitation coil 13 outside is around establishing opposite direction.
The distance between the limiting groove 801 and the third cylindrical groove 802 on the same fixing plate 8 is greater than the distance between the corresponding first cylindrical groove 701 and the corresponding second cylindrical groove 703.
In this embodiment, the permanent magnet in the second cast steel tube 12 and the magnetic block 14 in the second cylindrical groove 703 are attracted in opposite directions, and the first excitation coil 11 and the second excitation coil 13 need to be energized simultaneously when the door 1 of the electric meter is closed;
it should be noted that, in a natural state, the second cast-steel tube 12 is completely located in the third cylindrical groove 802, and the second excitation coil 13 generates a repulsive force to the permanent magnet in the second cast-steel tube 12 after being powered on;
when the connecting rod 5 moves to the upper side and the lower side of the through groove, the second cylindrical groove 703 firstly passes through the third cylindrical groove 802 and then reaches the limiting groove 801, in the process, under the action of the magnetic field generated by the first excitation coil 11 and the second excitation coil 13, the first cast steel pipe 9 cannot extend into the third cylindrical groove 802, and the second cast steel pipe 12 cannot enter the first cylindrical groove 701; when the connecting rod 5 moves to the top or the bottom of the through groove, the first cylindrical groove 701 is just opposite to the position of the limiting groove 801, the portable power supply is disconnected, and the first cast steel pipe 9 automatically extends into the limiting groove 801; when the electric meter box door 1 needs to be opened, the sequence of the steps is reversed.
If a lawbreaker observes that the worker knows the method and the subsequent operation steps of switching on the current after operating, when the link 5 is moved downwards, the second cylindrical groove 703 is opposite to the third cylindrical groove 802, and because the winding directions of the wires outside the first excitation coil 11 and the second excitation coil 13 are opposite, the current with the opposite direction needs to be switched on the second excitation coil 13 to repel the permanent magnet inside the second cast steel tube 12, and the lawbreaker usually switches on the currents with the same size and the same direction to the excitation coils under the inertia thinking effect, so the second cast steel tube 12 can rapidly extend into the second cylindrical groove 703 under the effects of the second excitation coil 13 and the magnetic block 14, thereby preventing the fixed block 7 from moving and keeping the lock of the door 1 of the electric meter.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. The electricity larceny prevention safety lock for the electric meter box comprises a fixing seat (2) fixedly installed on an electric meter box door (1) and two fixing plates (8) fixedly installed on an electric meter box wall (6), and is characterized in that a through groove is formed in the electric meter box door (1), two connecting rods (5) are movably arranged in the through groove, two ends of each connecting rod (5) are respectively and fixedly connected with a connecting head (3) and a fixing block (7), the two connecting heads (3) are arranged in the fixing seat (2) in a sliding mode, and an anti-theft component is arranged on the corresponding fixing block (7) and the corresponding fixing plate (8) together;
each anti-theft component comprises a limiting groove (801) arranged on a corresponding fixing plate (8), a first cylindrical groove (701) and a mounting groove (702) arranged on a corresponding fixing block (7), each mounting groove is communicated with the corresponding first cylindrical groove (701), a straight plate (10) and a first magnet exciting coil (11) are arranged in each mounting groove (702), a first cast steel pipe (9) is arranged in each first cylindrical groove (701), a first spring is connected between each first cast steel pipe (9) and the corresponding straight plate (10), and a permanent magnet is embedded in each first cast steel pipe (9);
a plurality of wire connectors are arranged in each connector (3), each first magnet exciting coil (11) is electrically connected with the corresponding wire connector, the specifications of the two first magnet exciting coils (11) are different, a third cylindrical groove (802) is further formed in each fixing plate (8), a second cast steel pipe (12) is elastically connected in the third cylindrical groove (802) through a second spring, a second cylindrical groove (703) matched with the corresponding third cylindrical groove (802) in specification is formed on each fixed block (7), a magnetic block (14) is arranged in the second cylindrical groove (703), a second magnet exciting coil (13) is fixedly arranged in each mounting groove (702), the central axis of each second excitation coil (13) and the central axis of the corresponding magnetic block (14) are positioned on the same straight line, and each second excitation coil (13) is electrically connected with a wire connector;
the permanent magnet in the second cast steel pipe (12) and the magnetic block (14) in the second cylindrical groove (703) are attracted in opposite directions, the second cast steel pipe (12) is completely positioned in the third cylindrical groove (802) in a natural state, and the second excitation coil (13) generates repulsion force on the permanent magnet in the second cast steel pipe (12) after being electrified; when the connecting rod (5) moves towards the upper side and the lower side of the through groove, the second cylindrical groove (703) firstly passes through the third cylindrical groove (802) and then reaches the limiting groove (801), in the process, under the action of a magnetic field generated by the first excitation coil (11) and the second excitation coil (13), the first cast steel pipe (9) cannot extend into the third cylindrical groove (802), and the second cast steel pipe (12) cannot enter the first cylindrical groove (701); when the connecting rod (5) moves to the top or the bottom of the through groove, the first cylindrical groove (701) is just opposite to the position of the limiting groove (801), the portable power supply is disconnected, and the first cast steel pipe (9) can automatically extend into the limiting groove (801); when the door (1) of the electric meter needs to be opened, the sequence of the steps is reversed.
2. Anti-electricity-theft safety lock for electric meter boxes according to claim 1, characterized in that the distance between the third cylindrical groove (802) and the limiting groove (801) on the same fixing plate (8) is greater than the distance between the corresponding first cylindrical groove (701) and second cylindrical groove (703).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911191268.7A CN111219101B (en) | 2019-11-28 | 2019-11-28 | Anti-electricity-theft safety lock for electric meter box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911191268.7A CN111219101B (en) | 2019-11-28 | 2019-11-28 | Anti-electricity-theft safety lock for electric meter box |
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| Publication Number | Publication Date |
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| CN111219101A CN111219101A (en) | 2020-06-02 |
| CN111219101B true CN111219101B (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911191268.7A Active CN111219101B (en) | 2019-11-28 | 2019-11-28 | Anti-electricity-theft safety lock for electric meter box |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111677374B (en) * | 2020-08-12 | 2020-11-13 | 国网山东省电力公司高密市供电公司 | Electromagnetic locking ammeter and locking control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799518A (en) * | 1997-01-22 | 1998-09-01 | Suetech Industries Co., Ltd. | Door lock assembly |
| CN2746083Y (en) * | 2004-04-13 | 2005-12-14 | 刘明富 | Special bullet sleeve type electronic antitheft lock for electricity meter box |
| CN204116409U (en) * | 2014-09-18 | 2015-01-21 | 郑州朗鑫智能电子科技有限公司 | The anti-unlatching ammeter box of a kind of intelligent electric meter |
| CN205404639U (en) * | 2016-02-26 | 2016-07-27 | 国家电网公司 | Anti -electricity -stealing electric -meter box |
-
2019
- 2019-11-28 CN CN201911191268.7A patent/CN111219101B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799518A (en) * | 1997-01-22 | 1998-09-01 | Suetech Industries Co., Ltd. | Door lock assembly |
| CN2746083Y (en) * | 2004-04-13 | 2005-12-14 | 刘明富 | Special bullet sleeve type electronic antitheft lock for electricity meter box |
| CN204116409U (en) * | 2014-09-18 | 2015-01-21 | 郑州朗鑫智能电子科技有限公司 | The anti-unlatching ammeter box of a kind of intelligent electric meter |
| CN205404639U (en) * | 2016-02-26 | 2016-07-27 | 国家电网公司 | Anti -electricity -stealing electric -meter box |
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| CN111219101A (en) | 2020-06-02 |
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Effective date of registration: 20210511 Address after: 226600 No.18, Jungong Road, Hai'an hi tech Zone (formerly Hai'an town), Hai'an City, Nantong City, Jiangsu Province Applicant after: JIANGSU JIYE ELECTRIC Co.,Ltd. Address before: No. 489, helanxi Road, Xixia District, Yinchuan City, Ningxia Hui Autonomous Region Applicant before: Liu Xiaodan |
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