CN2492855Y - Sealing cover capable of avoiding fraudullent use of electricity for watt-hour meter - Google Patents
Sealing cover capable of avoiding fraudullent use of electricity for watt-hour meter Download PDFInfo
- Publication number
- CN2492855Y CN2492855Y CN 01231066 CN01231066U CN2492855Y CN 2492855 Y CN2492855 Y CN 2492855Y CN 01231066 CN01231066 CN 01231066 CN 01231066 U CN01231066 U CN 01231066U CN 2492855 Y CN2492855 Y CN 2492855Y
- Authority
- CN
- China
- Prior art keywords
- nut
- inner core
- screw rod
- ratchet
- watt
- 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 is an electric meter sealing cover for preventing electricity theft, which consists of a transparent cover (1), a throughhole (2), a nut coat (3), an inner core (4), a pawl (5), a rachet (6) and a screw (7). After the transparent cover is fixed on an electric meter box, when the nut is rotated in a reverse direction, the inner core cannot be driven to rotate and therefore loosened; under the condition of not damaging the structure, the screw cannot be dismounted, thus preventing electricity theft.
Description
Technical field: the utility model is a kind of electrical installation, promptly a kind of power-steeling preventing electric meter seal closure.
Background technology: existing watt-hour meter mainly prevents power stealing with lead sealing, and reliability is very poor.Other has some anti-electricity-theft ammeters that adopt new and high technologies such as remote control, computer, the structure more complicated, and cost is higher, is unsuitable for popularization and application.
Summary of the invention: develop a kind of dependable performance, arrangement on watt-hour meter for avoiding fraudulent use simple in structure, with low cost.This apparatus features is: adopt a translucent cover that watt-hour meter can be buckled in the inside, be connected by unidirectional bolt between translucent cover and the table case that watt-hour meter is installed, unidirectional bolt also is to be made of screw rod and nut, its screw rod is identical with the screw rod of plain bolt, nut then is to be made of nut overcoat, inner core and ratchet, the profile of nut overcoat is identical with plain nut, be polygon, then there is a circular hole centre, the circular-hole internal-wall strand connects ratchet, inner core places in the circular hole, and periphery is provided with to match with ratchet and carries out the ratchet of one-directional rotation.
The inner core of said nut can be connected mutually with the screw rod of bolt.
Can establish the screw that matches with screw rod in the middle of the inner core of said nut.
This bolt during the nut reverse rotation, can not drive inner core and rotate, thereby can not become flexible after translucent cover and ammeter box is fixing, under the situation of not destroying structure, can't demounting bolt, thus electricity filching behavior can't be carried out.
Fig. 1 is the front view of translucent cover, and Fig. 2 is its vertical view.
Fig. 3 is that the master of unidirectional bolt looks enlarged drawing.
Fig. 4 is its left view.
Among the figure as seen, translucent cover 1, through hole 2, nut overcoat 3, inner core 4, ratchet 5, ratchet 6, screw rod 7.
Embodiment: as shown in Figure 1, 2, this seal closure is a kind of translucent cover 1, and spiral-lock does not influence the numeral of observing watt-hour meter outside watt-hour meter.The translucent cover both sides are provided with through hole 2.During use, ammeter is buckled in the cover, the through hole 2 on both sides is connected by bolt and ammeter box.
Shown in Fig. 3,4, the bolt that is adopted is a kind of special unidirectional bolt, and the screw rod 7 of this bolt is identical with the screw rod of plain bolt, just the nut difference.Nut is made of overcoat, inner core, the overcoat periphery is identical with plain nut, can be sexangle, be circular hole in the middle of the overcoat, and inner core 4 is housed in the hole, be provided with ratchet 6 around the inner core, hinge ratchet 5 in the overcoat, when overcoat during to the direction rotation of tightening, ratchet withstands ratchet, drive inner core and rotate in the same way, finish fixation procedure.When the overcoat reverse rotation, ratchet can only slide on ratchet can't drive inner core, thereby can't loose bolts.
The nut inner core of this bolt can be connected mutually with screw rod, also can individualism.The former is suitable for showing to have on the case fixed form of screw, and the latter is suitable for the fixed form that bolts and nuts match.
Claims (3)
1, a kind of power-steeling preventing electric meter seal closure, it is characterized in that: adopt a translucent cover (1) that watt-hour meter can be buckled in the inside, be connected by unidirectional bolt between translucent cover (1) and the table case that watt-hour meter is installed, unidirectional bolt also is to be made of screw rod (7) and nut, its screw rod is identical with the screw rod of plain bolt, nut then is by nut overcoat (3), inner core (4) and ratchet (5) constitute, the profile of nut overcoat (3) is identical with plain nut, be polygon, then there is a circular hole centre, circular-hole internal-wall hinge ratchet (5), inner core place in the circular hole of overcoat (3), and periphery is provided with the ratchet (6) that matches and carry out one-directional rotation with ratchet (5).
2, power-steeling preventing electric meter seal closure according to claim 1 is characterized in that: the inner core of said nut (4) can be connected mutually with the screw rod (7) of bolt.
3, power-steeling preventing electric meter seal closure according to claim 1 is characterized in that: can establish the screw that matches with screw rod (7) in the middle of the inner core of said nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231066 CN2492855Y (en) | 2001-07-26 | 2001-07-26 | Sealing cover capable of avoiding fraudullent use of electricity for watt-hour meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01231066 CN2492855Y (en) | 2001-07-26 | 2001-07-26 | Sealing cover capable of avoiding fraudullent use of electricity for watt-hour meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2492855Y true CN2492855Y (en) | 2002-05-22 |
Family
ID=33645431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01231066 Expired - Fee Related CN2492855Y (en) | 2001-07-26 | 2001-07-26 | Sealing cover capable of avoiding fraudullent use of electricity for watt-hour meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2492855Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369985A (en) * | 2015-12-11 | 2016-03-02 | 招商局重庆交通科研设计院有限公司 | Curved-plate type anchorage device for carbon fiber plates |
| CN107607758A (en) * | 2017-08-30 | 2018-01-19 | 国家电网公司 | Modified low-temperature measurement safety device |
| CN108390624A (en) * | 2018-03-05 | 2018-08-10 | 苏州市昌美新能源科技有限公司 | A kind of photovoltaic system installation amount device |
| CN111562437A (en) * | 2020-07-20 | 2020-08-21 | 广东电网有限责任公司东莞供电局 | Comprehensive metering intelligent terminal |
| CN117595082A (en) * | 2024-01-19 | 2024-02-23 | 河北久德电气设备有限公司 | Power distribution circuit device |
-
2001
- 2001-07-26 CN CN 01231066 patent/CN2492855Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105369985A (en) * | 2015-12-11 | 2016-03-02 | 招商局重庆交通科研设计院有限公司 | Curved-plate type anchorage device for carbon fiber plates |
| CN107607758A (en) * | 2017-08-30 | 2018-01-19 | 国家电网公司 | Modified low-temperature measurement safety device |
| CN107607758B (en) * | 2017-08-30 | 2019-08-16 | 国家电网公司 | Modified low-temperature measurement safety device |
| CN108390624A (en) * | 2018-03-05 | 2018-08-10 | 苏州市昌美新能源科技有限公司 | A kind of photovoltaic system installation amount device |
| CN111562437A (en) * | 2020-07-20 | 2020-08-21 | 广东电网有限责任公司东莞供电局 | Comprehensive metering intelligent terminal |
| CN111562437B (en) * | 2020-07-20 | 2020-10-16 | 广东电网有限责任公司东莞供电局 | Comprehensive metering intelligent terminal |
| CN117595082A (en) * | 2024-01-19 | 2024-02-23 | 河北久德电气设备有限公司 | Power distribution circuit device |
| CN117595082B (en) * | 2024-01-19 | 2024-03-26 | 河北久德电气设备有限公司 | Power distribution circuit device |
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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 |