6results about How to "Stability and security" patented technology

This invention discloses a secure authentication method and system based on a general server interface, belonging to the field of interface security control technology. The method involves acquiring the original request message, extracting the interface identifier, timestamp, request parameters, and a first signature value; generating an interface context feature code based on the interface identifier and an interface mapping table, containing call hierarchy and permission domain information; and comparing this with a second signature value generated using a pre-shared key to determine message legitimacy. After confirming message legitimacy, a dynamic channel identifier bound to the interface context feature code is generated and written into the call context stack. The consistency between the dynamic channel identifier and the interface path vector is verified using a Merkle path binding verification algorithm, controlling the execution of the target business module. This invention achieves strong binding between interface message authentication and the server's internal call path, effectively preventing cross-module replay and path mismatch risks, and improving the security and reliability of general interfaces in complex operating environments.

The application relates to a primary-secondary fusion built-in isolation knife circuit breaker, which comprises a box body arranged on one side of a pole-mounted circuit breaker, a box cover which is detachably buckled and installed at the top opening of the box body, an isolation knife switch unit arranged in the box body, an electrical connection device arranged on the outer wall of the box body and electrically connected with the isolation knife switch unit, and the electrical connection device being electrically connected with the pole-mounted circuit breaker; a control mechanism is arranged on the front face of the box body, and the control mechanism is used for controlling the opening and closing states of the isolation knife switch unit; when the control mechanism drives the isolation knife switch unit to be in the closed state, the isolation knife switch unit is rotated to be in plug-in conduction with the corresponding static contact; when the control mechanism drives the isolation knife switch unit to be in the open state, the isolation knife switch unit is rotated to the opposite direction to be in plug-in conduction with the corresponding safety device, and reliable isolation is completed; the safety device is connected with a grounding bolt arranged on the side of the box body; and the application has the advantages of reasonable structure, good protection effect, stable and reliable opening and closing operation and guaranteed electrical isolation.

The utility model relates to the technical field of supports for packaging in silicon steel strip production, and discloses a support for packaging in silicon steel strip production, which comprises a main body mechanism and a supporting mechanism, the supporting mechanism is fixedly arranged in the main body mechanism, and the main body mechanism comprises a support main body, a base and a stand column. A base is fixedly installed at the bottom end of the support body, a plurality of stand columns are fixedly installed on the base, and the stand columns are perpendicular to the base. The movable block of the support can flexibly slide in the sliding groove of the bottom plate and is fixed through the positioning pin, the position can be rapidly adjusted according to the width of silicon steel strips, and accurate positioning of the silicon steel strips with different widths is achieved. By means of the adjustable structure, the strip materials can be effectively prevented from deviating in the placing process, an accurate initial position is provided for subsequent packaging work, and the packaging efficiency is improved.

The utility model discloses a kind of shelf device and cooking equipment, for cooking equipment, cooking equipment is equipped with heating cavity, including shelf assembly, shelf assembly includes storage rack and the limiting portion being set on storage rack;The inner wall of heating cavity is equipped with support edge and the protruding block located heating cavity inside, the gap between protruding block and support edge forms the clamping groove of storage rack clamping, and support edge is equipped with the gap for avoiding corresponding with protruding block;When storage rack is pulled out from clamping groove horizontally to the limiting portion and protruding block abuts, protruding block limits storage rack to continue to pull out horizontally to completely separate from heating cavity;When storage rack is stretched out outside heating cavity and one end is lifted to certain angle, the other end of storage rack enters into gap for avoiding, limiting portion avoids protruding block, and storage rack can be pulled out completely in heating cavity. Thus, by protruding block located inside heating cavity, protruding block and the limiting portion of storage rack interact, ensure that inclination angle is not too large, to effectively prevent food material from sliding or equipment damage.

This invention discloses a deformation-resistant booster pipe with a protective device, belonging to the field of booster pipe technology. It includes a protective cover located at the booster pipe joint, comprising an upper cover and a lower cover. Transmission mechanisms are symmetrically arranged inside the upper and lower covers. An upper sealing cover is installed between the two transmission mechanisms of the upper cover, and a lower sealing cover is installed between the two transmission mechanisms of the lower cover. Limiting frames are symmetrically installed on both side walls of the upper cover, and guide cylinders are symmetrically arranged on both side walls of the lower cover. Guide rods are movably arranged inside the guide cylinders, and two limiting blocks are movably arranged on each guide rod. A triggering mechanism is provided between the guide cylinders and the lower cover. This invention can resist external impacts and prevent joint deformation, and can also specifically solve the leakage problem after joint sealing failure, thus improving the overall pressure-bearing capacity, structural strength, and safety protection level of the booster pipe, and extending the service life of the pipeline.

The invention relates to the technical field of automobile assembly, and discloses large automobile unpowered hydraulic damping equipment which comprises a control system and a braking system. The braking system comprises a hydraulic damper, a transmission gear pair, a hub and a fixing plate, the fixing plate is located at the end of the axle, the mounting position of the fixing plate is fixed, the hydraulic damper is fixedly mounted on the fixing plate and is in transmission connection with the hub through the transmission gear pair, and the central axis of the hydraulic damper is parallel to the central line of the axle; through the coupling effect of the hydraulic damper and the transmission gear pair, effective control over the rotating speed of the wheels is achieved, a strong braking power source does not need to be additionally arranged, and therefore driving potential safety hazards and vehicle assembling, manufacturing and using cost are remarkably reduced.