A disposable anti-tampering lock catch is an integrated piece and comprises a handle, a main tearing portion, a locking portion, a limiting portion and an auxiliary tearing arm. A first tearing structure which cannot be restored after being torn is arranged on the main tearing portion. The auxiliary tearing arm is provided with a second tearing structure, wherein when the disposable anti-tampering lock catch is opened, both the first tearing structure and the second tearing structure are torn, and the shape of the auxiliary tearing arm is deformed after being torn and cannot be reset.

A disposable anti-tampering lock catch is an integrated piece and comprises a handle, a main tearing portion, a locking portion, a limiting portion and an auxiliary tearing arm. A first tearing structure which cannot be restored after being torn is arranged on the main tearing portion. The auxiliary tearing arm is provided with a second tearing structure, wherein when the disposable anti-tampering lock catch is opened, both the first tearing structure and the second tearing structure are torn, and the shape of the auxiliary tearing arm is deformed after being torn and cannot be reset.

An electronic security bolt seal for locking a hasp includes an electronic module that has a circuit board disposed at an interior cavity of a housing. The housing includes apertures aligned with each other, such that a bolt is configured to be inserted through the apertures and through the interior cavity to engage the circuit board and complete an electronics circuit. When the bolt is inserted through the apertures of the housing, a locking device engages a tip region of the bolt that protrudes from the housing to secure the electronic module to the bolt. Responsive to a determination of breaking the electronics circuit, the circuit board is operable to generate a seal tamper signal. The locking element can be unlocked by a user to disengage the locking device from the bolt to permit the bolt to be removed from the electronic module and disengaged from the hasp.

An electronic security bolt seal for locking a hasp includes an electronic module that has a circuit board disposed at an interior cavity of a housing. The housing includes apertures aligned with each other, such that a bolt is configured to be inserted through the apertures and through the interior cavity to engage the circuit board and complete an electronics circuit. When the bolt is inserted through the apertures of the housing, a locking device engages a tip region of the bolt that protrudes from the housing to secure the electronic module to the bolt. Responsive to a determination of breaking the electronics circuit, the circuit board is operable to generate a seal tamper signal. The locking element can be unlocked by a user to disengage the locking device from the bolt to permit the bolt to be removed from the electronic module and disengaged from the hasp.

A tamper proof locking mechanism incorporating a first fixture for attachment to an index protective cover, a second fixture for attachment to an instrument, and a third fixture for connecting the first fixture to the second fixture. The first fixture may have a receptacle, the second fixture may have a plate with an opening, and the third fixture may have a protrusive structure that fits into the receptacle of the first fixture and into the opening in the plate to connect the first fixture to the second fixture. The protrusive structure may have a rivet that is partially embedded with a plastic-like material that reveals tampering when an attempt is made to break a connection between the first fixture and the second fixture.

A bolt seal including a pin and a barrel where the barrel has a storage position on the pin and a lock position on the pin, the bolt seal optionally including a restrainer and optionally being packaged in a container in a common orientation with other bolt seals.

A bolt seal including a pin and a barrel where the barrel has a storage position on the pin and a lock position on the pin, the bolt seal optionally including a restrainer and optionally being packaged in a container in a common orientation with other bolt seals.

The invention relates to means for sealing measuring instruments and equipment, specifically to seals with a blockable rotor to enable monitoring for unauthorized access to instruments measuring consumption of electrical and heating energy, natural gas and water. A seal with a rotor comprises a transparent body (1) made from a high-strength plastic and formed with a cylindrical cavity (2) having a blind end and openings (3) which are formed on lateral sides of the cavity (2) and through which a flexible sealing element passes, and a rectangular cavity (4) which is installed at the open end of the cavity (2), transversely with respect to the latter, wherein the cavities (2) and (4) are interconnected. A rotor (6) is arranged in the cavity (2) so as to be rotatable in one direction. Openings for the flexible sealing element are formed in the lateral walls of the cavity (2) and in the rotor. A cross-shaped blocking element (9) is installed at one end of the rotor. A device (5) for blocking the rotation of the rotor is arranged in the cavity (4), one end of which device is provided with two projections in the form of a fork (13), between which a trapezoidal groove (15) is formed for securing the cross-shaped blocking element (9).

The invention relates to means for sealing measuring instruments and equipment, specifically to seals with a blockable rotor to enable monitoring for unauthorized access to instruments measuring consumption of electrical and heating energy, natural gas and water. A seal with a rotor comprises a transparent body (1) made from a high-strength plastic and formed with a cylindrical cavity (2) having a blind end and openings (3) which are formed on lateral sides of the cavity (2) and through which a flexible sealing element passes, and a rectangular cavity (4) which is installed at the open end of the cavity (2), transversely with respect to the latter, wherein the cavities (2) and (4) are interconnected. A rotor (6) is arranged in the cavity (2) so as to be rotatable in one direction. Openings for the flexible sealing element are formed in the lateral walls of the cavity (2) and in the rotor. A cross-shaped blocking element (9) is installed at one end of the rotor. A device (5) for blocking the rotation of the rotor is arranged in the cavity (4), one end of which device is provided with two projections in the form of a fork (13), between which a trapezoidal groove (15) is formed for securing the cross-shaped blocking element (9).

An electronic security bolt seal for locking a hasp includes an electronic module that has a circuit board disposed at an interior cavity of a housing. The housing includes apertures aligned with each other, such that a bolt is configured to be inserted through the apertures and through the interior cavity to engage the circuit board and complete an electronics circuit. When the bolt is inserted through the apertures of the housing, a locking device engages a tip region of the bolt that protrudes from the housing to secure the electronic module to the bolt. Responsive to a determination of breaking the electronics circuit, the circuit board is operable to generate a seal tamper signal. The locking element can be unlocked by a user to disengage the locking device from the bolt to permit the bolt to be removed from the electronic module and disengaged from the hasp.