39results about How to "Guaranteed not to loosen" patented technology

The invention discloses a clamping apparatus used for fixing a revolving body. The clamping apparatus comprises a clamping apparatus body fixed on a worktable, regulating rods, press plates, two supporting frames and a guide frame, wherein one of the supporting frames is fixed on one end of the clamping apparatus body, the other supporting frame is movably fixed on the other end of the clamping apparatus body, and a removable guide frame is arranged between the supporting frames; the guide frame and the supporting frames are provided with coaxial heart-shaped holes, the supporting frames are further provided with the regulating rods, and the regulating rods are verticality fixed on the axes of the heart-shaped holes; and the press plates are arranged below the regulating rods, the press plates are used for fixing a workpiece on the clamping apparatus body through the regulating rods, and each press plate is arc-shaped. The clamping apparatus used for fixing the revolving body provided by the invention can guarantee that the workpiece is not easy to loose through the regulating rods, the press plates, the supporting frames and the guide frame when being processed; and the procreative precision is improved, the structure is simple and practical, and the clamping apparatus is suitable for volume production.

The invention discloses a bolt anti-loosening structure. The bolt anti-loosening structure is characterized in that the bolt anti-loosening structure comprises a lock bolt, a lock nut and a lock snap spring; the lock nut is screwed into the lock bolt; the lock snap spring is arranged above the lock nut; a lock tongue of the lock snap spring is embedded into a groove of the lock bolt, and a notch of the lock snap spring is embedded into a clamping key of the lock nut; and meanwhile a lock snap spring key is embedded into a groove of the lock nut. According to the anti-loosening bolt method, bolt pretightening force can be controlled within a constant and effective range, connecting parts operating in a vibration state can be effectively connected and safely and normally work, and maintenance operations like mounting and dismounting are made convenient and fast.

The invention discloses a three-core terminal fixing device which structurally comprises a terminal, a connecting ring, a cable and a cable joint. The cable is connected with the connecting ring, theconnecting ring is fixedly mounted on the terminal, the terminal is electrically connected with the connecting ring and cable, the cable joint is electrically connected with the cable, and the cable joint is arranged in the end, far from the connecting ring, of the cable. The device has the advantages that when the cable is inserted into the cable joint, the cable generates a thrust on a rotatingplate, the rotating plate is pushed to rotate and pushes a second rod to move along the rotating plate, two clamping plates move towards each other according to a lever principal, the cable is clamped, and when a central shaft rotates, a connecting line drives a movable block to rotate, a slide rail generates a negative pressure, the stranded cable core is sucked in in the sucking port, it is ensured that the cable core is not loosened, and the cable core is tightly applied to a current conducting plate.

The invention discloses a high-voltage transformer. Fixing frames are fixed to the lower surface of an upper iron yoke. Threaded sleeves are arranged in the fixing frames, and threaded rods penetrate through the threaded sleeves. The threaded rods are sleeved with locking nuts, and the locking nuts are located below the threaded sleeves. Driving discs are arranged at the tops of the threaded rods. Driving devices are arranged on the fixing frames. The output ends of the driving devices are connected with the driving discs through belts. Sliding blocks are arranged at the bottoms of the threaded rods. The upper surfaces of upper pressing plates make contact with the lower surfaces of fixing blocks. Sliding sleeves are fixed in the fixing blocks. The sliding blocks slide in the sliding sleeves. Elastic components are arranged between the bottoms of the sliding blocks and the bottom surfaces inside the sliding sleeves. According to the high-voltage transformer, automatic pressing devices can exert pressure on the upper pressing plates continuously, so that it is guaranteed that a whole winding will not become loose between the upper iron yoke and a lower iron yoke, and it is also guaranteed that coils will not get loose between the upper pressing plates and lower pressing plates.

The invention discloses a time synchronization device with a data line fastening function. The device comprises a time synchronization device body with the data line fastening function. A data line jack is arranged in the back of the time synchronization device body with the data line fastening function. A protection frame is fixedly arranged on the back of the time synchronization device body with the data line fastening function. Adjusting rods are arranged on both sides of the data line jack on the back of the time synchronization device body with the data line fastening function. The telescopic ends of two adjusting rods are fixedly connected through a connecting cross plate. A line clamp plate is fixedly arranged at the top of the connecting cross plate. A line clamp buckle is fixedlyarranged at the bottom of the line clamp plate. A data connection line is inserted into a line insertion slot on the surface of the protection frame. The line clamp plate is in clamp connection withthe surface of the data connection line. One end of the data connection line is inserted into the data line jack. According to the time synchronization device with the data line fastening function, the data connection line is not loosened; normal operation of the time synchronization device with the data line fastening function is ensured; the time synchronization device with the data line fastening function is prevented from data loss caused by the loose data connection line; and the device facilitates the work of people.