4results about How to "Stable and reliable structure" patented technology

The utility model discloses a kind of knob brake devices and mower, knob brake device includes knob main body, knob bottom ring, knob cover and locating bead, knob brake device drives the rotation of motor height adjusting device's spiral column, spiral column drives motor in motor height adjusting device to move upwards or downwards, the lower end surface of knob bottom ring is equipped with ring locating hole;Locating bead is located on the device shell upper surface of motor height adjusting device, and is matched with the position of locating hole, and the bottom of each locating bead is equipped with spring;Knob cover is equipped with hole position, after knob main body passes through knob cover, knob cover is fixed with the device shell upper surface. The application can prevent knob from rotating randomly, make the rotation process more stable, simultaneously utilize sound or touch to perceive rotation angle, facilitate angle control, can be applied to adjust the height of motor, to adjust the height of motor front end prop, blade and other devices, structure is firm and stable, suitable for high-power electrical product.

A kind of tower matching chute structure suitable for high-voltage transmission line unmanned aerial vehicle repair, including chute structure, the bottom of chute structure is equipped with support structure, the bottom of support structure is equipped with base structure.Using the above structure, the time flow of single repair module docking and installation operation is greatly reduced, compared with traditional way, the demand for manpower is greatly reduced, and the operation efficiency is greatly improved;The prefabricated part is easy to disassemble and assemble, and can be prepared flexibly according to the demand of existing module, and the combination flexibility is strong;The overall structure of the device is firm and stable, easy to disassemble and assemble, and practical.

The utility model relates to a fork type lifting safety anti-falling device for a riser tube. The device comprises two fork rods which are arranged in parallel, the front ends of the two fork rods are connected through a cross rod, a hanging rod is obliquely arranged above the middle of the two fork rods, the two sides of the hanging rod are connected with the two fork rods through two oblique tie bars respectively, the lower end of the hanging rod extends to the outer side of the cross rod, and the higher end of the hanging rod is located above the middle of the fork rods. A middle nut is arranged on the suspender, and an upper nut is arranged at the higher end of the suspender. The device has the advantages of being high in working efficiency, low in safety risk, low in manufacturing cost, simple in structure and low in operation difficulty.

The utility model discloses a kind of electric wire cable length measuring devices, including measurement base, the top of measurement base is fixedly connected with portal frame, the portal frame is installed with the measurement component for cable length measurement, the top of the portal frame and the position corresponding the measurement component is installed with the limiting component for the cable to be measured limiting, the both sides of measurement base top are installed with the guide component for the cable to be measured guiding, the measurement component includes measurement shaft rotatably installed on the portal frame, metering wheel is fixedly connected on the measurement shaft, the end of the measurement shaft is installed with encoder. The utility model realizes the self-adaptive limiting clamping of different thick and thin cable and the self-adaptive adjustment of cable tension, effectively improve the accuracy and stability of cable length measurement, while having the advantages of stable structure, reliable operation etc., and has wide application prospect in electric wire cable length measurement field.