Lock catch type seal for electric energy meter

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.

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 ...

AI Technical Summary

Problems solved by technology

This structure mainly has the following four deficiencies: first, the traditional seal needs to wear the seal line, the installation steps are cumbersome, and the sealing efficiency is low; second, the anti-theft performance of the traditional seal structure is poor; third, the lead used in the traditional seal, Serious environmental pollution, and long-term exposure to lead by installation staff, can easily cause poisoning; Fourth, traditional seals are not conducive to digital management and the need for efficient and automatic sealing

[0003] Although the existing technology has made many improvements to the seal structure, some of which do not need to wear the seal line, the installation steps have been simplified, but because the structure is still relatively complicated, and the correction between the seal hole and other parts is required, the installation operation It is cumbersome and cannot be automatically sealed; some improvements in the structure of the seal can temporarily prevent theft, but due to structural defects, the seal is relatively easy to age. After a period of time, the seal will reduce or lose the anti-theft performance. Frequent replacement is required, which increases management costs and is not conducive to implementation

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