CN204536396U - A kind of electric-energy meter against charge evasion - Google Patents
A kind of electric-energy meter against charge evasion Download PDFInfo
- Publication number
- CN204536396U CN204536396U CN201520243608.7U CN201520243608U CN204536396U CN 204536396 U CN204536396 U CN 204536396U CN 201520243608 U CN201520243608 U CN 201520243608U CN 204536396 U CN204536396 U CN 204536396U
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- locking
- platform
- lock lever
- telefault
- check lock
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Abstract
The utility model relates to a kind of electric energy meter, there is provided a kind of structure simple, survivable, effectively play the electric-energy meter against charge evasion of anti-electricity-theft behavior, comprise drain pan, be located at the anti-theft circuit plate in drain pan, be located at the shell on drain pan, for the set nut of connected with outer casing and drain pan, set nut is made up of locking head and the check lock lever that is connected with locking head, on locking head, centered by check lock lever, axle is provided with annular receiving groove, check lock lever is arranged with locking spring, locking spring is placed in annular receiving groove, below check lock lever being positioned at locking spring is arranged with the resilient latching member of " ㄇ " font, the left and right sides of resilient latching member horizontally extends left locking platform and right locking platform respectively, left locking platform and right locking platform are also respectively equipped with the dog clutch of multiple " < " and " > " type, below check lock lever being positioned at resilient latching member is also provided with thread head, the diameter of described thread head is greater than check lock lever.
Description
Technical field
The utility model relates to a kind of electric energy meter, particularly a kind of electric-energy meter against charge evasion.
Background technology
At present, usual electric energy meter parts are all installed in table body, show the external table cover that links closely, table cover and the multiplex bolted of table body, and table cover and bolt all have through hole, lead sealing money through above-mentioned through hole, then penetrates a lead sealing block, finally with special sealing pliers clamping lead sealing block, play lead sealing, tamper-proof effect.Although this seal mode has some strength, lead sealing line will through by envelope object and bolt, and then unrolls and to clamp through lead sealing block, threading complicated operation, can only manual operations, robotization cannot install seal additional; And outside lead sealing line is exposed to, very easily replaced by after artificial destruction, antifalse effect is poor.
Utility model content
Therefore, for above-mentioned problem, the utility model proposes a kind of structure simple, survivable, effectively play the electric-energy meter against charge evasion of anti-electricity-theft behavior.
For realizing above-mentioned technical matters, the solution that the utility model is taked is: a kind of electric-energy meter against charge evasion, comprise drain pan, the shell be located at the anti-theft circuit plate in drain pan and be located on drain pan, described shell is provided with the first locking hole screwed in for set nut, described set nut is made up of locking head and the check lock lever that is connected with locking head, on described locking head, centered by check lock lever, axle is provided with annular receiving groove, described check lock lever is arranged with locking spring, locking spring is placed in annular receiving groove, the below described check lock lever being positioned at locking spring is arranged with the resilient latching member of " ㄇ " font, the left and right sides of described resilient latching member horizontally extends left locking platform and right locking platform respectively, left locking platform and right locking platform are also respectively equipped with the dog clutch of multiple " < " and " > " type, the below described check lock lever being positioned at resilient latching member is also provided with thread head, the diameter of described thread head is greater than check lock lever, the position described drain pan corresponding to the first locking hole of shell is provided with the second locking hole, described second locking hole is provided with the left locking hole and right locking hole that supply the left locking platform of resilient latching member and right locking platform to stretch into, the inwall of described left locking hole and right locking hole is equipped with the hangnail platform blocking locking for the dog clutch of locking platform, being tilted to of described hangnail platform is consistent with the direction of the dog clutch on corresponding locking platform, the below that described second locking hole is positioned at left locking hole and right locking hole is provided with threaded hole, thread head on described threaded hole and set nut matches, for the locking of set nut.
Further: described anti-theft circuit plate is provided with the first telefault that input end is connected with zero line N, the second telefault and the zero sequence current mutual inductor that use same winding with described first telefault, the described output terminal of the first telefault is connected with the input end of the telefault of transformer, described second induction coil current output terminal connects DC power cathode by first crystal diode C1, and described DC power anode connects described second induction coil current input end by the second crystal diode C2; Described DC power anode connects the first electromagnetic switch K1 comparatively showing to establish in K switch 0 rear connection small-sized magnetic latching relay B, described first electromagnetic switch K1 is connected to the 4th inductive coil L4 established in power magnetic force keeping relay C, described 4th inductive coil L4 is connected to described DC power cathode, forms loop; The the second electromagnetic switch K2 established in described power magnetic force keeping relay C is arranged on live wire L; DC power anode is by connecting reset switch K3; be connected to the 5th telefault L5 established in power magnetic force keeping relay C; 5th telefault L5 and the 4th inductive coil L4 anti-magnetized coil each other, the 5th telefault L5 is connected to DC power cathode, forms loop; Zero sequence current mutual inductor A, zero sequence current mutual inductor A are by the rectification circuit of four crystal diode compositions, and filter capacitor, voltage stabilizing diode is connected to the 3rd telefault L3 established in small-sized magnetic latching relay B.
By adopting preceding solution, the beneficial effects of the utility model are: the electric-energy meter against charge evasion of design as mentioned above, during installation, by the check lock lever of set nut through the first locking hole on shell, and the left locking hole left locking platform of resilient latching member and right locking platform sticked into respectively on drain pan and right locking hole, then the locking head of instrument rotational lock nut, the threaded hole that thread head on check lock lever is rotated on drain pan is locked, in this process, because nut is locked downwards, locking spring can be driven to move downward, locking spring produces the pressure acted on resilient latching member, under this pressure effect, resilient latching member can produce elastic deformation, the left and right locking platform of resilient latching member is upheld along the left and right locking hole on drain pan, owing to left locking platform and right locking platform being also respectively equipped with the dog clutch of multiple " < " and " > " type, and the inwall of left locking hole and right locking hole is equipped with the hangnail platform blocking locking for the dog clutch of locking platform, and being tilted to of hangnail platform is consistent with the direction of the dog clutch on corresponding locking platform, then hangnail platform also serves guide effect to left and right locking platform in the process of left and right locking platform extension, the dog clutch of " < " and " > " type namely on left and right locking platform can be upheld along the dip plane of the hangnail platform on each self-locking hole, the restoring force shunk to check lock lever can be produced after the elastic deformation of simultaneously resilient latching member, under this restoring force is combined with the structure of hangnail platform, the dog clutch of " < " and " > " type on left and right locking platform can engage by compact siro spinning technology with the hangnail platform on each self-locking hole, if someone wants dismounting electric energy meter, electric energy meter can not be opened under the connection not destroying left and right locking platform and locking hole, once there be people to destroy structure by force to reach electricity filching behavior, because electric energy meter depredation is obviously also easy to be found out, therefore, described electric-energy meter against charge evasion, syndeton between drain pan and shell is simple, seal is effective, also the concrete syndeton between drain pan and shell is not easily observed from outside, not easily be imitated and destroy syndeton, stealing is carried out once be destroyed by force, because depredation is obviously also easy to be penetrated electricity filching behavior, seal successful, anti-theft function is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the circuit connection diagram of anti-theft circuit plate in the utility model embodiment.
Embodiment
Now with specific embodiment, the utility model is further illustrated by reference to the accompanying drawings.
With reference to figure 1, what the utility model embodiment disclosed is, a kind of electric-energy meter against charge evasion, comprise drain pan 1, the shell 2 be located at the anti-theft circuit plate in drain pan 1 and be located on drain pan 1, described shell 2 is provided with the first locking hole 21 screwed in for set nut 3, described set nut 3 is made up of locking head 31 and the check lock lever 32 that is connected with locking head 31, on described locking head 31, centered by check lock lever, axle is provided with annular receiving groove, described check lock lever 32 is arranged with locking spring 4, locking spring 4 is placed in annular receiving groove, the below described check lock lever 32 being positioned at locking spring is arranged with the resilient latching member 5 of " ㄇ " font, the left and right sides of described resilient latching member 5 horizontally extends left locking platform and right locking platform respectively, left locking platform and right locking platform are also respectively equipped with the dog clutch of multiple " < " and " > " type, the below described check lock lever 32 being positioned at resilient latching member 5 is also provided with thread head 33, the diameter of described thread head 33 is greater than check lock lever 32, the position described drain pan 1 corresponding to the first locking hole 21 of shell 2 is provided with the second locking hole, described second locking hole is provided with the left locking hole 11 and right locking hole 12 that supply the left locking platform of resilient latching member and right locking platform to stretch into, the inwall of described left locking hole 11 and right locking hole 12 is equipped with the hangnail platform 13 blocking locking for the dog clutch of locking platform, being tilted to of described hangnail platform is consistent with the direction of the dog clutch on corresponding locking platform, the below that described second locking hole is positioned at left locking hole and right locking hole is provided with threaded hole 14, described threaded hole 14 matches with the thread head 33 on set nut 3, for the locking of set nut 3.
During installation, by the check lock lever 32 of set nut 3 through the first locking hole 21 on shell, and the left locking hole 11 left locking platform of resilient latching member 5 and right locking platform sticked into respectively on drain pan 1 and right locking hole 12, then the locking head 31 of instrument rotational lock nut 3, the threaded hole 14 that thread head 33 on check lock lever 32 is rotated on drain pan 1 is locked, in this process, because nut is locked downwards, locking spring 4 can be driven to move downward, locking spring 4 produces the pressure acted on resilient latching member 5, under this pressure effect, resilient latching member 5 can produce elastic deformation, the left and right locking platform of resilient latching member 5 is upheld along the left and right locking hole on drain pan 1, owing to left locking platform and right locking platform being also respectively equipped with the dog clutch of multiple " < " and " > " type, and the inwall of left locking hole 11 and right locking hole 12 is equipped with the hangnail platform 13 blocking locking for the dog clutch of locking platform, and being tilted to of hangnail platform 13 is consistent with the direction of the dog clutch on corresponding locking platform, then hangnail platform 13 also serves guide effect to left and right locking platform in the process of left and right locking platform extension, the dog clutch of " < " and " > " type namely on left and right locking platform can be upheld along the dip plane of the hangnail platform on each self-locking hole, the restoring force shunk to check lock lever 32 can be produced after the elastic deformation of simultaneously resilient latching member 5, under this restoring force is combined with the structure of hangnail platform 13, the dog clutch of " < " and " > " type on left and right locking platform can engage by compact siro spinning technology with the hangnail platform on each self-locking hole, if someone wants dismounting electric energy meter, electric energy meter can not be opened, once there be people to destroy structure by force to reach electricity filching behavior, because electric energy meter depredation is obviously also easy to be found out under the connection not destroying left and right locking platform and locking hole.
With reference to figure 2, on described anti-theft circuit plate, the input end of the first telefault L1 is connected with zero line N, and the output terminal of the first telefault L1 is connected with the input end of the telefault of transformer, and the second telefault L2 and the first telefault L1 uses same winding.Second telefault L2 current output terminal connects DC power cathode by first crystal diode C1, and DC power anode connects the second telefault L2 current input terminal by the second crystal diode C2.DC power anode connects the first electromagnetic switch K1 comparatively showing to establish in K switch 0 rear connection small-sized magnetic latching relay B, first electromagnetic switch K1 is normal open switch, first electromagnetic switch K1 is connected to the 4th inductive coil L4 established in power magnetic force keeping relay C, and the 4th inductive coil L4 is connected to DC power cathode; The the second electromagnetic switch K2 set in power magnetic force keeping relay C is arranged on live wire L as normally closed switch, the second electromagnetic switch K2; DC power anode is by connecting reset switch K3, be connected to the 5th telefault L5 established in power magnetic force keeping relay C, 5th telefault L5 and the 4th inductive coil L4 anti-magnetized coil each other, the 5th telefault L5 is connected to DC power cathode, forms loop.Zero sequence current mutual inductor A, zero sequence current mutual inductor A are by the rectification circuit of four crystal diode compositions, and filter capacitor, voltage stabilizing diode is connected to the 3rd telefault L3 established in small-sized magnetic latching relay B.
When described electric-energy meter against charge evasion uses, when the online stealing of user, take disconnected pressure, shunting, backflow, when pouring line stealing into, zero sequence current mutual inductor A will be made to induce current/voltage, when stealing power reaches 500w, the electric current of inducting obtains electric generation magnetic by establishing the 3rd telefault L3 in small-sized magnetic latching relay B, the the first electromagnetic switch K1 established in small-sized magnetic latching relay B closes, now connect the power circuit of power magnetic force keeping relay C, 4th telefault L4 obtains electric generation magnetic, make the second electromagnetic switch K2 commutation be located in power magnetic force keeping relay C on live wire L, namely the second electromagnetic switch K2 disconnects, cut off user's power supply.When connecting external reset switch K3, connect the power circuit of the 5th telefault L5,5th telefault L5 obtains the electric generation magnetic contrary with the 4th telefault L4, the inductance magnetic of power magnetic force keeping relay C is eliminated, second electromagnetic switch K2 resets, namely the second electromagnetic switch K2 closes, and restores electricity.
The electric-energy meter against charge evasion designed in sum, syndeton between drain pan and shell is simple, seal is effective, also the concrete syndeton between drain pan and shell is not easily observed from outside, not easily be imitated and destroy syndeton, stealing is carried out once be destroyed by force, because depredation is obviously also easy to be penetrated electricity filching behavior, seal successful, anti-theft function is strong, further also in conjunction with the technology that the anti-theft circuit on anti-theft circuit plate is further completely antitheft, avoid various electricity filching behavior, good anti-theft effect.
Above, be only the embodiment utilizing this origination techniques content, the modification that any those skilled in the art use this creation to do, change, all belong to the scope of the claims that this creation is advocated, and be not limited to those disclosed embodiments.
Claims (2)
1. an electric-energy meter against charge evasion, it is characterized in that: comprise drain pan, the shell be located at the anti-theft circuit plate in drain pan and be located on drain pan, described shell is provided with the first locking hole screwed in for set nut, described set nut is made up of locking head and the check lock lever that is connected with locking head, on described locking head, centered by check lock lever, axle is provided with annular receiving groove, described check lock lever is arranged with locking spring, locking spring is placed in annular receiving groove, the below described check lock lever being positioned at locking spring is arranged with the resilient latching member of " ㄇ " font, the left and right sides of described resilient latching member horizontally extends left locking platform and right locking platform respectively, left locking platform and right locking platform are also respectively equipped with the dog clutch of multiple " < " and " > " type, the below described check lock lever being positioned at resilient latching member is also provided with thread head, the diameter of described thread head is greater than check lock lever, the position described drain pan corresponding to the first locking hole of shell is provided with the second locking hole, described second locking hole is provided with the left locking hole and right locking hole that supply the left locking platform of resilient latching member and right locking platform to stretch into, the inwall of described left locking hole and right locking hole is equipped with the hangnail platform blocking locking for the dog clutch of locking platform, being tilted to of described hangnail platform is consistent with the direction of the dog clutch on corresponding locking platform, the below that described second locking hole is positioned at left locking hole and right locking hole is provided with threaded hole, thread head on described threaded hole and set nut matches, for the locking of set nut.
2. electric-energy meter against charge evasion according to claim 1, it is characterized in that: described anti-theft circuit plate is provided with the first telefault that input end is connected with zero line N, the second telefault and the zero sequence current mutual inductor that use same winding with described first telefault, the described output terminal of the first telefault is connected with the input end of the telefault of transformer, described second induction coil current output terminal connects DC power cathode by first crystal diode C1, and described DC power anode connects described second induction coil current input end by the second crystal diode C2; Described DC power anode connects the first electromagnetic switch K1 comparatively showing to establish in K switch 0 rear connection small-sized magnetic latching relay B, described first electromagnetic switch K1 is connected to the 4th inductive coil L4 established in power magnetic force keeping relay C, described 4th inductive coil L4 is connected to described DC power cathode, forms loop; The the second electromagnetic switch K2 established in described power magnetic force keeping relay C is arranged on live wire L; DC power anode is by connecting reset switch K3; be connected to the 5th telefault L5 established in power magnetic force keeping relay C; 5th telefault L5 and the 4th inductive coil L4 anti-magnetized coil each other, the 5th telefault L5 is connected to DC power cathode, forms loop; Zero sequence current mutual inductor A, zero sequence current mutual inductor A are by the rectification circuit of four crystal diode compositions, and filter capacitor, voltage stabilizing diode is connected to the 3rd telefault L3 established in small-sized magnetic latching relay B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243608.7U CN204536396U (en) | 2015-04-22 | 2015-04-22 | A kind of electric-energy meter against charge evasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243608.7U CN204536396U (en) | 2015-04-22 | 2015-04-22 | A kind of electric-energy meter against charge evasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204536396U true CN204536396U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520243608.7U Expired - Fee Related CN204536396U (en) | 2015-04-22 | 2015-04-22 | A kind of electric-energy meter against charge evasion |
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| CN (1) | CN204536396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444535A (en) * | 2018-12-06 | 2019-03-08 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of electric energy meter with long-range control electromagnetic type charging seal |
| CN113075437A (en) * | 2021-04-08 | 2021-07-06 | 扬州万泰电子科技有限公司 | High-reliability intelligent electric meter |
-
2015
- 2015-04-22 CN CN201520243608.7U patent/CN204536396U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444535A (en) * | 2018-12-06 | 2019-03-08 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of electric energy meter with long-range control electromagnetic type charging seal |
| CN109444535B (en) * | 2018-12-06 | 2023-10-20 | 国网辽宁省电力有限公司鞍山供电公司 | Electric energy meter with remote control electromagnetic charging seal |
| CN113075437A (en) * | 2021-04-08 | 2021-07-06 | 扬州万泰电子科技有限公司 | High-reliability intelligent electric meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160422 |
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| CF01 | Termination of patent right due to non-payment of annual fee |