CN2126559Y - Self-locking type preventing power-stealing device for electric meter - Google Patents
Self-locking type preventing power-stealing device for electric meter Download PDFInfo
- Publication number
- CN2126559Y CN2126559Y CN 92223619 CN92223619U CN2126559Y CN 2126559 Y CN2126559 Y CN 2126559Y CN 92223619 CN92223619 CN 92223619 CN 92223619 U CN92223619 U CN 92223619U CN 2126559 Y CN2126559 Y CN 2126559Y
- Authority
- CN
- China
- Prior art keywords
- cover plate
- braking
- screw bolt
- bolt
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a self-locking type preventing power-stealing device for electric meter, comprising a cover plate, a cover cap, a screw bolt, a gear wheel, a spring, and a pin. A through hole is arranged on the cover plate, and the both sides are respectively provided with a bump. After the screw bolt passes through the cover cap, the spring and the gear wheel are sheathed on the screw bolt. The pin transversally passes through the gear wheel and the screw bolt, and the cover cap is positioned on the cover plate. The lower end of the screw bolt passes through the through hole on the cover plate. The gear wheel is pressed on the cover plate under the action of the spring force. When the screw bolt rotates, the gear teeth rotate following the screw bolt after sliding the bump. When the screw bolt rotates in reverse direction, the vertical braking surface on the bump obstructs the gear teeth so that the gear teeth can not rotate in order to carry out the self-locking. The burglar for stealing electricity can steal the electricity after the cover cap is destroyed, so burglar can be exposed and discovered. The structure of the utility model is reasonable, and the installation is easy.
Description
The utility model relates to a kind of anti-electricity-theft device that is installed on the ammeter.
At present, what the ammeter of domestic use adopted is the bottom cover plate pin configuration, and is added with sealing device, in case open.Yet the thing of stealing still happens occasionally.Electricity filching person is at first pulled out lead sealing by force for stealing, opens cover plate, it is come off upper left side opening of hook in the cover plate lower cavity, and ammeter stops walking.The trip bolt that to import zero line and live wire unclamps then, line is taken out insert institute's electrical appliance, makes power lead not by ammeter, the ammeter cover plate is restored again, and so promptly reaches the stealing purpose, also is not easy to be found.From the above mentioned, existing ammeter is the generation that can not stop the stealing thing effectively.
The purpose of this utility model provides a kind of being installed on the ammeter, in case electricity filching person stealing, thoroughly the self-locking anti-electricity-theft device of its electricity filching behavior of exposure.
The technical scheme that the utility model is taked is as follows: it is by braking cover plate 1, pin 2, cover cap 3, bolt 4, spring 5 and handsetting gear 6 are formed, braking cover plate 1 middle part wherein has a through hole, be positioned at these through hole both sides one braking projection 7 is respectively arranged, cover cap 3 middle parts have a through hole, after bolt 4 passes cover cap 3 middle part through holes, make spring 5 and handsetting gear 6 be sleeved on bolt 4 outsides successively, and pin 2 is horizontally through handsetting gear 6 and bolt 4, handsetting gear 6 is kept off above pin 2, again cover cap 3 is covered on braking cover plate 1, this moment, braking cover plate 1 middle part through hole was passed in bolt 4 lower ends, under the elastic-restoring force effect of spring 5 turning wheel 6 had been pressed on the braking cover plate 1.
The utility model is installed in former cover plate position, below in the ammeter, and it is thereon fixed to brake cover plate 1.The up time swivel bolt 4 then, are arranged in teeth around the handsetting gear 6 of bolt 4 below and constantly slip over from bottom to top behind the braking inclined-plane, projection 7 top and rotate thereupon, up to cover cap 3 being pressed on the braking cover plate 1.When reverse,, 6 inverse times of handsetting gear are rotated, also just can not make the rotation of 4 inverse times of bolt, thereby play self-locking action because the vertical braking surface that teeth are braked on the piece 7 around the handsetting gear 6 blocks.
The utility model is rational in infrastructure, and is easy for installation.Because fastening bolt 4 can not rotate and unclamp the inverse time, when electricity filching person is desired stealing, cover cap 3, braking cover plate 1 must be destroyed and could realize stealing, but owing to cover cap 3, braking cover plate 1 can not restore, this has just thoroughly exposed the electricity filching behavior of electricity filching person again.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model vertical view.
Fig. 3 is bolt 4 structural representations.
41. pin-and-hole.
Fig. 4, Fig. 5 are the structural representation of handsetting gear 6.
61. semi-circular hole.
Two braking projections 7 on the braking cover plate 1 are symmetrically located at the both sides of middle part through hole respectively.Braking projection 7 tops are an inclined-plane.Respectively there is a relative semi-circular hole 61 symmetria bilateralis position, handsetting gear 6 bottom, be sleeved on handsetting gear 6 on the bolt 4 after, make semi-circular hole 61 aim at pin-and-hole 41 on the bolts 4, then pin 2 is inserted.Bolt 4 lower ends pass braking cover plate 1 back screw in the former cover plate of ammeter in the hold-down nut in the topped cavity, and bolt 4 screwed, so that this device is fixed on the ammeter.
Claims (3)
1, a kind of self-locking ammeter anti-electricity-theft device, it is characterized in that forming by braking cover plate 1, pin 2, cover cap 3, bolt 4, spring 5 and handsetting gear 6, described braking cover plate 1 middle part has a through hole, and being positioned at these through hole both sides respectively has a braking projection 7, and cover cap 3 middle parts have a through hole; After bolt 4 passes cover cap 3 middle part through holes, make spring 5 and handsetting gear 6 be sleeved on bolt 4 outsides successively, and pin 2 is horizontally through handsetting gear 6 and bolt 4, handsetting gear 6 is kept off above pin 2, again cover cap 3 is covered on braking cover plate 1, this moment, braking cover plate 1 middle part through hole was passed in bolt 4 lower ends, under the elastic-restoring force effect of spring 5 handsetting gear 6 had been pressed on the braking cover plate 1.
2, self-locking ammeter anti-electricity-theft device according to claim 1, it is characterized in that braking projection 7 tops on the described cover plate 1 are an inclined-plane, this inclined-plane low side and cover plate 1 surface contact and raises gradually, is braking surface with cover plate 1 Surface Vertical and brake another side on the projection 7.
3, self-locking ammeter anti-electricity-theft device according to claim 1 is characterized in that screwing in the interior hold-down nut of ammeter lower cavity after braking cover plate 1 is passed in described bolt 4 lower ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223619 CN2126559Y (en) | 1992-05-30 | 1992-05-30 | Self-locking type preventing power-stealing device for electric meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223619 CN2126559Y (en) | 1992-05-30 | 1992-05-30 | Self-locking type preventing power-stealing device for electric meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2126559Y true CN2126559Y (en) | 1993-01-13 |
Family
ID=33769304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92223619 Expired - Fee Related CN2126559Y (en) | 1992-05-30 | 1992-05-30 | Self-locking type preventing power-stealing device for electric meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2126559Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656111B (en) * | 2008-08-20 | 2011-12-07 | 深圳长城开发科技股份有限公司 | Sliding opening and closing device of communication port |
| CN102792171A (en) * | 2010-03-15 | 2012-11-21 | 萨基姆通讯能源及电信联合股份公司 | Package having opening detection |
-
1992
- 1992-05-30 CN CN 92223619 patent/CN2126559Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656111B (en) * | 2008-08-20 | 2011-12-07 | 深圳长城开发科技股份有限公司 | Sliding opening and closing device of communication port |
| CN102792171A (en) * | 2010-03-15 | 2012-11-21 | 萨基姆通讯能源及电信联合股份公司 | Package having opening detection |
| CN102792171B (en) * | 2010-03-15 | 2016-02-24 | 萨基姆通讯能源及电信联合股份公司 | Open the packaging of detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |