Lock catch type seal for electric energy meter

A technology for electric energy meters and locks, which is applied to seals, measuring electrical variables, and measuring devices. It can solve the problems of easy aging of seals, increased management costs, and low sealing efficiency, and achieves simple seal structures, easy installation and operation, and extended use. The effect of longevity

CN102646364AActive Publication Date: 2012-08-22STATE GRID METERING CENT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2012-08-22

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Patent Text Reader

Abstract

The invention discloses a lock catch type seal for an electric energy meter, which comprises a base and a seal cover arranged on the base, wherein the base is internally provided with a counter bore, a screw for fixedly connecting an electric energy meter body penetrates through the counter bore, the lower part of the seal cover extends into the counter bore of the base, the outer circumferential surface of the lower end of the seal cover is provided with an outwards-extending lug boss, an elastic bulge is circumferentially arranged on the inner wall of the counter bore in the base, and the lower end part of the elastic bulge inclines into the base and downwards extends and supports against the lug boss of the seal cover. The lock catch type seal for the electric energy meter has the advantages of no need of penetration of a seal wire, no need of alignment and matching of seal holes, long service life, convenience for installation and firmness in fixation, and completely meets the demand of automatic sealing of an assembly line; and on the premise of not damaging the seal of the electric energy meter, the electric energy meter can not be subjected to electricity stealing, thus having better anti-theft, anti-counterfeiting and anti-electricity stealing properties.
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Description

technical field

[0001] The invention belongs to the technical field of seals, in particular to a lock-type seal for an electric energy meter. Background technique

[0002] The energy meter seal is a device to prevent unauthorized people from opening the energy meter, which can prevent unauthorized people from changing the structure or setting of the energy meter to steal electricity. At present, in the power industry, the traditional sealing structure is to use the sealing line to pass through the plastic shell, seal the screw, and then insert the two ends into a sealing structure, and fix the sealing line by pressing or rotating, without damaging the sealing structure and Under the premise of breaking the sealing line, the sealing line cannot be pulled out, so that the sealing screw cannot be rotated, so that unauthorized people cannot unscrew the sealing screw, open the sealed structure, and play the role of sealing, anti-damage and anti-electricity theft. This structure ...

Examples

Embodiment 1

[0027] like figure 1 As shown, the lock-type seal of the electric energy meter in this example includes a base 2 and a seal cover 1 arranged on the base. Among them, the material of the base is metal, and the material of the sealing cover is plastic; the base 2 is a columnar body with a counterbore 8 in the middle, and the upper part of the sealing cover 1 is a cover plate 3 and the side of the cover plate is a conical surface; 1. A columnar sleeve 4 with openings at both ends, a circle of outer convex edge 10 is provided on the upper peripheral surface of the columnar sleeve 4, and an outwardly extending boss 13 is provided on the outer peripheral surface of the lower end of the cylindrical sleeve. On the outer peripheral surface of the lower end of the lower end, it can also be set as a continuous circle; the upper end surface of the columnar sleeve 4 is provided with a groove, and the side of the groove is also set as a tapered surface with respect to the side of the cover ...

Embodiment 2

[0031] The structure and working principle of the lock-type seal of the electric energy meter in this example are basically the same as those in Embodiment 1, except that:

[0032] like figure 2As shown, in this example, the upper cover plate 3 and the lower cylindrical sleeve 4 of the sealing cover 1 adopt an integrated structure. When the electric energy meter seal does not need to be provided with a seal label, there is no need to provide a cavity 12 for placing the seal label 6 between the cover plate 3 and the cylindrical sleeve 4. In order to effectively improve the strength of the seal cover, simplify the overall structure of the seal, and improve production efficiency , so the cover plate 3 and the columnar sleeve 4 of the sealing cover 1 are made into an integrated structure.