Lock catch type seal for electric energy meter

Abstract

A lock-type seal for an electric energy meter comprises a base (2) and a seal cover (1) which is arranged on the base (2). A counter bore (8) is arranged in the base (2); a screw (11) which is used for fixed connection to the body of an electric energy meter penetrates through the counter bore (8); the lower part of the seal cover (1) extends into the counter bore (8) of the base (2); a boss (13) which extends outwards is arranged on the external circumferential surface of the lower end of the seal cover (1); and an elastic bulge (9) is arranged along the inner wall of the counter bore (8) in the base (2) in the circumferential direction, and the lower end of the elastic bulge (9) inclines towards the inside of the base (2), extends downwards and abuts on the boss (13) of the seal cover (1). The lock-type seal for an electric energy meter need not thread a seal wire, need not align or match with each seal hole, and completely meets the production line automatic sealing requirements. The lock-type seal for an electric energy meter also has a long service life, convenient installation and firm fixation. On the premise of not breaking the seal of an electric energy meter, theft of electricity cannot be performed on the electric energy meter, thereby affording better theft protection, anti-counterfeiting and electricity theft-protection 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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