5results about How to "Double protection" patented technology

This utility model relates to the field of electricity meter technology, and in particular to a wiring auxiliary structure for electricity meters. It includes a fixed wall plate, with an electricity meter placement component fixedly connected to the upper front end of the fixed wall plate, and a wiring positioning component fixedly connected to the lower front end of the fixed wall plate. Two fixing rods are fixedly connected to the lower front end of the electricity meter placement component, and a fixing locking device is fixedly connected to the lower ends of the two fixing rods. In this wiring auxiliary structure, rotating the three-bladed knob of the fixing locking device drives a screw to push the second wiring positioning plate backward. With the cooperation of the guide rod and guide hole, smooth movement is achieved. Combined with the elastic action of the return spring, the wire is firmly locked to the electricity meter terminal, ensuring a tight and reliable connection. This avoids metering errors and safety hazards caused by poor contact. Furthermore, the entire locking process is simple to operate and can be completed without professional tools, significantly improving wiring efficiency and safety.

A smart continuous traction device includes a support structure, characterized in that: a front traction device (5) is installed on the third support plate (3), the third support plate (3) is connected to the second support plate (2) through the front support leg (7), a rear traction device (6) is installed on the second support plate (2), an automatic clamping device (10) is installed on the front traction device (5) and the rear traction device (6), and a directional guide assembly (36) is installed in the front traction device (5) and the rear traction device (6), and the directional guide assembly (36) is correspondingly set with the automatic clamping device (10). The structure of this application is reasonable, and a continuous traction device consisting of multiple traction devices connected in series can be used to alternately and seamlessly connect, which can alternately perform seamless continuous traction, and the accuracy of movement progress and control is improved. The active clamping of the steel strand makes the steel strand always maintain a stable clamping force, avoiding the risk of slippage, and has good safety performance.

The utility model discloses a grinding machine for processing metal buttons, which comprises a workbench, and the top of the workbench is fixedly connected with an operation box. According to the utility model, the innovative structural design is adopted, and the functions of dust removal, adsorption, fixation and the like are organically combined. Through cooperative operation of an operation box, a water pump, a fan, a dust removal plate and an activated carbon adsorption plate, metal chippings and dust generated in the polishing process can be effectively collected and treated, pollution to the working environment is greatly reduced, dust is prevented from harming the body health of operators, meanwhile, chippings are prevented from entering a transmission part of the polishing machine to aggravate abrasion, and the service life of equipment is prolonged; and by means of a quick positioning structure formed by an electric cylinder and a clamping plate and the humanized operation design formed by a baffle, an opening and a sealing ring, an operator can conveniently and efficiently complete metal button polishing work, double improvement of the protection performance and use convenience is achieved, and the device has the advantages of being convenient to use and having the protection effect on the environment and the operator.

This invention relates to the field of communication encryption technology, specifically to a hybrid encryption method and system. It includes the following steps: generating classical key pairs based on elliptic curve cryptography and generating quantum-resistant key pairs based on modular-lattice cryptography; the sender generates a key seed and encrypts key exchange data blocks using both a classical public key and a quantum-resistant public key; the receiver decrypts the data using the corresponding private key; cross-domain consistency verification is performed; if verification passes, the business data is authenticated and encrypted for transmission; if verification fails, communication is interrupted. This invention integrates elliptic curve classical cryptography and modular-lattice quantum-resistant cryptography to construct a dual-path encryption architecture, solving the problem that a single encryption technology cannot simultaneously achieve both classical communication efficiency and quantum security protection.

The utility model discloses a protective fence structure which comprises a rectangular steel pipe frame formed by welding four steel pipes in a surrounding mode and fixed to an inner ring of a rectangular frame type concrete beam column. The rectangular frame type concrete beam column comprises two horizontal beam columns and two side beam columns; the aluminum square pipes are horizontally arranged in the rectangular steel pipe frame from top to bottom at intervals, and the two ends of each aluminum square pipe are correspondingly connected with the two side steel pipes on the side faces of the rectangular steel pipe frame respectively; the main reinforcing structure comprises main stainless steel angle steel columns located on the outer vertical faces of the multiple aluminum square pipes and close to the corresponding side beam columns. The two ends of the main stainless steel angle steel column are mechanically fixed to the two horizontal beam columns correspondingly. The main stainless steel angle steel column and each aluminum square tube are fixed in a hooping manner at the intersection; the middle of the main stainless steel angle steel column further laterally extends to form a lateral stainless steel angle steel column, and the tail end of the lateral stainless steel angle steel column is mechanically fixed to the corresponding lateral beam column. The method has the advantage that the structural integrity can still be maintained under the condition that local connection failure occurs between the steel pipe frame and the beam column.