3results about How to "Does not affect the connection" patented technology

This utility model discloses an anti-skew nut clamping mechanism, relating to the technical field of clamping mechanisms. It includes a clamping base with an internal mounting groove at the bottom. A motor is fixedly mounted on one side of the clamping base, and a bidirectional lead screw is fixedly mounted inside the mounting groove at the motor's output end. Two sleeve blocks are threaded onto the outer side of the bidirectional lead screw. The beneficial effects of this utility model are: through the arrangement of the motor, bidirectional lead screw, sleeve blocks, connecting plate, clamping head, mounting plate, guide cylinder, slide rod, positioning plate, electromagnet, positioning cone, and connecting rod, when the two connecting plates and clamping head approach each other for clamping, the connecting rod pushes the positioning plate, electromagnet, and positioning cone downwards, thereby inserting the positioning cone into the nut hole for guidance. Simultaneously, the electromagnet, when energized, generates magnetic force to attract the nut to the positioning plate. This ensures the accuracy of the nut clamping by the clamping head, effectively preventing skew during nut clamping.

This utility model discloses a casualty search backpack, comprising a main backpack body, a drone, a remote control unit, several spare batteries, a cover plate, and a secondary backpack body. The main backpack body has a first groove, a second groove, and a third groove on its front side. The cover plate covers the front side of the main backpack body and is detachably connected to it, covering the first, second, and third grooves. A suspension device is fixed to the bottom of the drone. The suspension device is used to suspend the secondary backpack body from the bottom of the drone for transport to the location of the casualty and deployment. Two carrying straps are fixed to the back of the main backpack body. The top of the secondary backpack body is detachably connected to the bottom of the main backpack body. A soft handle is provided on the top of the secondary backpack body. This utility model enables rapid casualty search and flexible and efficient delivery of emergency supplies using a single backpack.

This utility model relates to a flue fireproof backflow preventer, comprising a valve body, a valve plate, and a hinge mechanism, as well as a valve plate locking mechanism. The valve plate locking mechanism includes a hinge seat, a locking element, a fusible link, and a limiting element. The hinge seat is mounted on the valve body. One end of the locking element is hinged to the hinge seat via a locking torsion spring. The locking element has a through hole, through which the free end of the fusible link passes and connects to the limiting element. The fusible link includes a first fusible link and a second fusible link. The limiting element is mounted on the first fusible link, and the second fusible link is connected to the hinge seat. The valve body has a positioning hole for the hinge seat or the second fusible link to extend. This utility model has a simple structure and is easy to operate. It can meet the requirements of normal kitchen ventilation and exhaust of smoke to the public flue, prevent the backflow of high-temperature smoke in the public flue, and prevent high-temperature smoke from entering the public flue during a kitchen fire. It can effectively prevent the spread of fire, giving this flue fireproof backflow preventer high fire resistance and wider application.