3results about How to "Prevent vandalism" patented technology

This utility model relates to the field of door lock technology, specifically a positioning and rotating handle device. It includes a mounting plate with a positioning ring installed in the center. A handle component is rotatably connected to the outside of the positioning ring. The handle component includes a rotating part, the front end of which is fitted onto the positioning ring. A spring is installed inside the rotating part, and a steel ball is attached to the end of the spring. The positioning ring has several equally spaced positioning grooves arranged in a ring on the side near the handle component. When the handle component rotates, the steel ball engages with each positioning groove in sequence, increasing rotational stability and feel. In this positioning and rotating handle device, the spring pushes the steel ball to engage with the positioning grooves on the positioning ring, achieving precise positioning of the handle component during rotation. Each rotation, with the steel ball embedding into the positioning groove, provides clear tactile feedback to the user, preventing any play or jamming during operation. It is particularly suitable for applications requiring high operational precision, improving stability and reliability.

The utility model relates to camera anti -disassembly technical field, and disclose a dangerous goods transport vehicle indoor monitoring camera device with anti -disassembly structure. This dangerous goods transport vehicle indoor monitoring camera device with anti -disassembly structure, including the coupling plate, the coupling seat, camera module and the columnar cylinder, the inside of coupling seat is equipped with the camera module extending to its below, the bottom of coupling plate is opened has the countersunk hole of ring array distribution and extends to its other side and with bolt adaptation, the bottom of coupling plate is embedded and has the internal thread cylinder of ring array distribution and extends to its other side, the bottom of coupling plate is opened has the alignment hole of left and right symmetry distribution and extends to its other side, this device has the advantage that the non -authorized personnel is difficult to disassemble through simple tool, has improved the anti -disassembly performance, effectively prevented malicious destruction, solved the problem that the existing dangerous goods transport vehicle indoor monitoring camera is easy to be disassembled.

This utility model discloses an installation protection component for a data acquisition device, including a mounting cover. A flipping mechanism is fixedly connected to the bottom of the inner wall of the mounting cover, and a shielding control mechanism is fixedly connected to the top of the mounting cover. The data acquisition device is fixedly connected to the top of the flipping mechanism. The mounting cover includes a main body, with wiring slots on both the left and right sides. Connecting blocks are fixedly connected to the front of both the left and right sides of the main body. The bottom left and right sides and the front of the main body are hollowed out. By setting up the mounting cover and the flipping mechanism, stable installation and convenient operation of the data acquisition device are achieved inside the mounting cover. It also fully considers environmental factors in actual use, such as the impact of sunlight angle on operation. Furthermore, the mounting cover effectively prevents debris from falling directly onto the data acquisition device and causing damage.