4results about How to "Avoidance of errors" patented technology

This invention relates to the field of eccentricity measurement technology, specifically to a puncture needle axis alignment eccentricity measuring device with a handle. It solves the problems of eccentricity measurement relying heavily on manual visual inspection with specialized instruments, resulting in low detection efficiency. Furthermore, the instruments are difficult to adapt to different models and sizes of puncture needles, requiring frequent fixture changes, and the measurement benchmark is difficult to establish accurately, leading to measurement errors. The device includes a base assembly with a rotating component at its top, and a linkage component at the top of each rotating component. A lifting detection mechanism is located inside the linkage component, and a benchmark positioning mechanism is located at the top of the inner side of the lifting detection mechanism. The invention utilizes the output end of a hydraulic cylinder to push up a movable ring, which in turn drives an adjusting rod to rise. This adjusting rod then synchronously raises the benchmark platform, allowing the device to accommodate puncture needles of different lengths.

According to the technical scheme, the rubber mixing mill is characterized in that the rubber mixing mill comprises a rack, a rear material roller and a front material roller are rotationally connected to the interior of the rack, two driving motors are connected to one side of the rack, driving shafts of the two driving motors penetrate through one side of the rack and are connected with the rear material roller and the front material roller respectively, and the rear material roller and the front material roller are connected with the rack. By means of a synchronous moving mode, the distances between the multiple blades are the same after the blades move, the effect of cutting the films with the same width is achieved, the situation that errors occur due to manual adjustment is avoided, and meanwhile when a moving block moves, through a sliding block on the bottom face of the moving block and a moving rod on one side of the moving block, the moving block can be conveniently moved. And the moving block is limited from two different directions, so that the moving stability of the moving block is improved.

The invention discloses a metal plate drilling device for manufacturing power distribution switch control equipment, and relates to the technical field of metal plate drilling, and the metal plate drilling device comprises a supporting assembly, a protection assembly and a metal plate body. The upper side and the lower side of a metal plate body which is connected between the metal protective cover and the bottom of the mounting frame in a penetrating manner can be pressed and limited, and a blocking groove, a limiting blocking rod, an arc-shaped clamping plate and a second compression spring structure are matched; the left side and the right side of the metal plate body connected between the metal protective cover and the bottom of the mounting frame in a penetrating mode can be clamped and limited, the stability of connection between the metal plate body and the supporting assembly and between the metal plate body and the protective assembly can be improved, and the situation that errors are generated during drilling treatment of the metal plate body can be effectively avoided; and through the structure of the horizontal moving box, the lifting adjusting frame and the splicing bracket, horizontal displacement and lifting adjustment can be conducted on the perforating machine additionally installed at the bottom of the connecting part according to the use condition.

The present invention relates to the technical field of environmental monitoring, and discloses an air sampling device for environmental monitoring, comprising a placement box and a fixed box, wherein the fixed box is fixedly connected to the outer wall of the placement box, a support plate is fixedly connected to the interior of the placement box, and a multi-mode sampling component for sampling air in multiple ways is arranged inside the placement box; the telescopic shafts of two micro electric gas rods are simultaneously started to move two worms to a meshing state with a worm gear, and two air samples at the same position are synchronously collected, so that the sample error caused by time difference or other factors can be reduced, and the real situation of the air at the position can be more accurately reflected, so as to provide more reliable data for environmental monitoring and analysis, and the air at the same position is simultaneously drawn into two sampling tubes, and the two samples obtained can be compared and analyzed, and the distribution and change of pollutants in the air can be better understood by comparing the difference between the two samples.