32results about How to "Prevent unauthorized disassembly" patented technology

The invention discloses an anti-burglary locking-controlled ball check valve. The anti-burglary locking-controlled ball check valve comprises a valve body, a bonnet and a valve element, wherein the valve element is connected with a wrench through a valve stem, the valve stem is positioned in a filler bin arranged on the side of the valve body, and a limiting stop tongue for limiting the rotating angle range of the wrench is formed on the wrench; an external port of the bonnet forms a structure of an anti-burglary connector, and a check valve structure is formed on a fluid channel of the bonnet; and a locking screw of which the head is provided with a prismatoidal tightening structure is arranged between the limiting stop tongue and the outer wall of the filler bin of the valve body. The locking screw is used for locking the wrench through the outer wall of the filler bin, and the wrench is unlocked when the locking screw is only separated from the outer wall of the filler bin or the limiting stop tongue. The anti-burglary locking-controlled ball check valve has the advantages that locking and burglary prevention can be effectively carried out, the mounting distance is fixed, and hidden leaking points are few; the locking screw is free of missing risks; and when the anti-burglary locking-controlled ball check valve is used in a household fuel gas pipeline, the trouble that running water flows back into the fuel gas pipeline due to the wrong connection of the gas pipeline and a water pipeline can be effectively eliminated.

The invention discloses a lock control ball valve. The lock control ball valve comprises a valve body, a valve cover and a valve element. A wrench is connected to the valve element through a valve rod, the valve rod is located in a filling bin arranged on one side of the valve body, and the wrench is provided with a limiting stopping tongue for limiting the rotation angle scope of the wrench; a locking screw is arranged between the limiting stopping tongue and the outer wall of the filling bin of the valve body, a screwing structure in a triangular prism or four-pedal plum column shape is formed at the head of the locking screw, and the locking screw is used for locking the wrench through the outer wall of the filling bin; and the wrench only can be unlocked when the locking screw is separated from the outer wall of the filling bin or the limiting stopping tongue. The lock control ball valve has the beneficial effects that the locking screw can only be unscrewed with a special opening tool, the valve is effectively prevented from being opened due to maloperation or being opened arbitrarily, and the using safety of a user is guaranteed; in addition, the opening tool is small in structural size, convenient to carry, small in force and long in service life and brings convenience to locking and unlocking operation; and the hidden danger of losing the locking screw is avoided.

The invention relates to the field of dismounting-prevention tee joints, and discloses a dismounting-prevention tee joint capable of being operated with gas and a tee joint dismounting wrench. A sealing plunger assembly (1) is arranged in a tee joint body (4) and comprises a plunger shell (101), beads (102), springs (103) and a plunger core (104). The beads (102) extend into bead embedding grooves (401) in the inner wall of the tee joint body (4). The plunger core (104) is provided with a plunger core internal cavity (1043). Inward-convex walls (1044) are further arranged at an opening of the plunger core internal cavity (1043). By adopting the technical scheme, a plug, a blank cap and the sealing plunger assembly can be taken out of the tee joint only through the special tee joint dismounting wrench, dismounting can be conducted with gas, and the sealing plunger assembly cannot be jacked into the tee joint through the wrench, so that the dismounting-prevention characteristic is better improved, and the tee joint can be effectively prevented from being dismounted by non-work personnel.

The invention discloses a remote terminal anti-disassembly control method suitable for excavators, which strengthens the communication security between the GPS terminal and the main controller through an irreversible encryption algorithm, cloud and EDS algorithms, establishes a reliable object communication connection, and Penalties are imposed for breaking connections, better preventing malicious teardowns.

The invention discloses an anti-theft freight pallet device. The anti-theft freight pallet device comprises a freight pallet, a covering bag and a sealing mark, wherein goods are stacked on the freight pallet, the stacked goods are completely covered with the covering bag, and the sealing mark is used for sealing the covering bag onto the freight pallet. An annular groove is formed in the periphery of the freight pallet, and the edge of an opening of the covering bag is embedded into the annular groove. The sealing mark is arranged on the groove in a surrounding mode. The sealing mark is used for sealing and locking the edge of the opening of the covering bag which is arranged on the periphery of the freight pallet in a sleeved mode onto the freight pallet. The anti-theft freight pallet device is quite convenient to use. One worker can complete all operations. The anti-theft freight pallet device meets the requirements for stacking the goods and carrying the goods at the same time. The goods can be effectively prevented by the anti-theft freight pallet device from being moved and unloaded by other people without authorization, and therefore the anti-theft freight pallet device has the good protection function and the good anti-theft function. According to the anti-theft freight pallet device, through combination of the covering bag, the sealing mark and the pallet, the goods are covered and protected in an omnibearing mode, and the anti-theft function is achieved during follow-up logistic chain operation and pallet storage.

The invention discloses an anti-disassembling threaded component and a mobile terminal having the anti-disassembling threaded component, and aims at solving the technical problems that the present mobile terminal is liable to be maliciously disassembled and then whether the product is altered or destroyed by others cannot be judged by the after-sales service. The anti-disassembling threaded component comprises a hollow screw, a self-locking mechanism and a screw disassembling tool used for disassembling the hollow screw. The hollow screw is installed in a threaded hole arranged between upper and lower shells. The self-locking mechanism is arranged at the tail end of the threaded rod of the hollow screw. The hollow screw is provided with a through hole. The push rod of the screw disassembling tool is inserted into the through hole to act on the self-locking mechanism. The nonstandard special self-locking mechanism, the hollow screw and the matched screw disassembling tool are arranged, and the self-locking mechanism can be utilized to prevent the mobile terminal product from being disassembled by others without permission so that the problem of the suspected disassembling of the mobile terminal product by the user himself does not occur in the after-sales service process, and the contradiction between the user and the warranty engineer can be technically solved.