3results about How to "Avoid contact wear" patented technology

This invention belongs to the field of headphone technology, and specifically relates to a quick-release structure for a headphone battery with elastic contact. It includes: a sound-generating unit with a mounting groove containing a receiver, and at least two inductive elements; and a battery unit with a conductive plate located inside the battery unit. By placing the conductive plate inside the battery unit, leakage caused by contact between the battery electrodes and the external environment is prevented. When the battery unit needs to be placed on the sound-generating unit, the receiver contacts the conductive plate, thereby establishing circuit continuity. This allows for easy assembly and disassembly of the battery unit and the headphone's sound-generating unit. During assembly, simply placing the battery unit on the sound-generating unit allows for automatic alignment and circuit connection through physical contact, eliminating the need for soldering, ribbon cables, or connectors, significantly reducing the difficulty and cost of automated assembly.

The utility model discloses a soft soil foundation reinforcing treatment device for building engineering construction, including rammer base disc, counterweight hammer disc and hanger, the rammer base disc top end superposition has counterweight hammer disc, and the most upper layer tray body surface of counterweight hammer disc is fixed with hanger in the middle, the rammer base disc surface is fixed with the side bolt and center bolt for respectively wearing out counterweight hammer disc and hanger, still include lock mechanism, set up lock mechanism through the counterweight hammer disc above the rammer base disc, after the long -tube nut of lock mechanism is screwed and locks at the side bolt and center bolt of counterweight hammer disc, the long -tube nut of buffer fixed ring and pressure fixed ring can be carded and limit side bolt place groove limit stop loose, and the long -tube nut at hanger can be carded and limit stop loose of L shape inner lock board, prevent long -tube nut loose in the rammer impact process, and simultaneously, U shape muscle can cooperate with fixed column pin and stop L shape inner lock board, avoid L shape inner lock board and pressure fixed ring and be thrown out.

The application relates to the field of vehicle transmission technology and discloses a non-integer multiple magnetic pole proportion and wedge-shaped magnet magnetic force circulating hub system which comprises a bearing seat, a hub assembly, a wheel rim assembly, a first bearing group and a second bearing group. The bearing seat is fixedly connected with a vehicle suspension or a steering knuckle. The hub assembly is rotationally connected between the first bearing group and the bearing seat, the wheel rim assembly is rotationally connected between the second bearing group and the bearing seat, and the wheel rim assembly is coaxially arranged with the hub assembly. A first permanent magnet array is arranged on the hub assembly, and a second permanent magnet array is arranged on the wheel rim assembly. The first permanent magnet array and the second permanent magnet array are arranged between the hub assembly and the wheel rim assembly to form a magnetic field coupling, non-contact power transmission is realized, contact wear and lubrication dependence in traditional mechanical transmission are avoided, transmission efficiency is improved, and the service life of the system is prolonged.