Bolt nailhead lead-sealing method and device

Abstract

The invention discloses a lead sealing device and method for screw nail heads, which are applied to prevent watches, boxes, etc. of protected objects from being opened and transformed, resulting in stolen or transformed objects. It includes a metal cap, a sliding sleeve set in the through hole of the metal cap, a screw passing through the sliding sleeve, a stopper that stops the head of the screw, a detachable part is fixed in the central through hole of the stopper, and a lead only that seals each part in the metal cap. . The invention can ensure that the nail head is not blocked by lead when the device is unsealed, so that it can be disassembled smoothly. In addition, the surface of the lead is printed with concave and convex graphics, and the contours of the graphics, points of different depths, and the color depth of impurities in the lead are selected as anti-counterfeiting marks, and the information of the anti-counterfeiting marks can also be stored in the computer database system of the telephone network or the Internet. Among them, it is for managers to obtain relevant information from different places to verify the authenticity of lead only.

Description

technical field [0001] The invention belongs to a lead sealing method and device, and relates to an improvement of the lead sealing method and device and the identification of the authenticity of the lead seal, which is used to prevent the watch, box, box, etc. of the protected object from being opened and changed, causing the protected object Being stolen or changed, it is applied to equipment that must be sealed by a specific department, such as electricity meters, water meters, oil meters, and containers. A sealing method and device that allow unauthorized people to use forged sealing devices to change protected objects without leaving a trace. Background technique [0002] Chinese utility model 03267763.4 discloses an anti-stealing lead seal device applied to electric meters, water meters, etc. Cover the nail heads, and finally seal them in the metal cap with lead. Since the screws are not exposed and are not fixed to a certain part of the device, the thief cannot direc...

AI Technical Summary

Problems solved by technology

But also there are following disadvantages: when the manager wants to open the meter box, it is necessary to adopt a stick tool with a tip to punch a through hole from the center of the lead, remove the lead at the center, and make the through hole and the inner cylinder located in the metal cap The through hole on the upper side is facing, and then a screwdriver can be used to pass through the hole in the center of the lead only and the through hole on the inner cylinder to reach the nail head of the screw, so as to unscrew the screw. However, the tool is blocked during the drilling process. The removed lead is easily pressed into the slot or cross groove of the screw head, and lead is often blocked in the slot or cross groove of the screw head. In this case, the screwdriver cannot open the screw; moreover, The lead caps and metal caps in the prior art have no anti-counterfeiting measures, which cannot fundamentally prevent the problem that the thief uses a counterfeit lead sealing device to re-package and is not easy to be found

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