6results about How to "Quick maintenance and replacement" patented technology

The invention discloses a subreflector electric lifting assembly and an antenna, and belongs to the technical field of antennas. The auxiliary reflecting surface electric lifting assembly comprises a bottom plate, a driving motor, two reversing transfer cases, a plurality of right-angle commutators, three linear executing mechanisms and a connecting plate. A driving motor divides power into two paths through a first reversing transfer case, and one path drives a first linear execution mechanism through a first vertical right-angle reverser; and the other path sequentially passes through a first horizontal right-angle reverser and a second reversing transfer case for secondary distribution and steering, and finally drives a second linear actuating mechanism and a third linear actuating mechanism directly and respectively through a second horizontal right-angle reverser and a second vertical right-angle reverser. The three linear executing mechanisms stretch out and draw back synchronously to drive the connecting plate and the auxiliary reflecting surface to lift integrally and stably. The single driving motor is matched with the specific mechanical transmission chain, so that three-point rigid synchronous driving is realized, and the problems of inconvenience in manual lifting of the auxiliary reflecting surface of the vehicle-mounted antenna, poor synchronous precision of multiple motors and over-limit transportation are solved.

The utility model discloses a kind of ship distress alarm device, comprising: control main body, fixed mounting seat on ship, the connecting slot is opened on the mounting seat, the connecting plug is set in the corresponding position of control main body rear side, the connecting plug is inserted and mounted in connecting slot;Fixing mechanism is set between mounting seat and control main body, for fixing control main body with mounting seat;Connecting mechanism is set on mounting seat, for installing protective baffle on mounting seat, the utility model structure is reasonable, the quick disassembly of device can be realized, the maintenance replacement of later period is convenient, can better satisfy use demand.

This utility model discloses a magnetically attached switch on / off device, relating to the field of switch on / off technology. It includes: a housing with a housing fixing hole, a bolt clearance cavity, a contact piece slot, a movable block limiting slot, a second spring mounting post, a movable block guide post hole, and a movable block moving cavity; the contact piece is fixed in the contact piece slot; a connecting bridge is disposed in the first spring mounting cavity; a connecting bolt passes through the connecting bolt mounting cavity; a first spring is disposed between the first spring mounting post and the connecting bridge; and a second spring is disposed between the second spring mounting post and the second spring mounting cavity. Through an openable and closable magnet compartment door combined with a spring limiting pin mechanism, the device ensures stable installation of the strong magnet while facilitating maintenance and replacement. It guarantees the reliability of emergency disconnection, effectively preventing mechanical damage caused by misoperation, and its quickly replaceable magnet structure further improves the ease of maintenance and service life of the equipment.

The utility model relates to a quick-plug self-locking structure of a radio frequency probe, which comprises a cable joint, one side of the cable joint is fixedly connected with a connecting sleeve, the other side of the cable joint is fixedly connected with an external cable, the inner wall of the connecting sleeve is provided with an accommodating groove, one end of the connecting sleeve is provided with a limiting groove, and the limiting groove is fixedly connected with the cable joint. One end of the external cable extends into the connecting sleeve and is fixedly connected with a first terminal, one end of the first terminal is fixedly connected with a reset spring, the interior of the limiting groove is movably connected with a probe body, one end of the probe body is fixedly connected with a limiting block, and one end of the limiting block is fixedly connected with a second terminal. According to the quick-insertion self-locking structure of the radio frequency probe, the quick-insertion self-locking function is realized, so that the convenience of installation is improved, the problem of tedious installation operation is solved, and the probe body can be conveniently and quickly maintained and replaced.

The invention provides a VHF and IP voice converged communication method and device for a special ship. The method comprises the following steps: monitoring environment temperature and electromagnetic interference intensity in real time; a pre-stored antenna parameter compensation library is matched based on the environment temperature, and radio frequency front end transmission parameters are dynamically optimized; and performing multi-modal noise suppression on the received VHF audio signal, wherein the multi-modal noise suppression comprises the following steps of: generating a time-frequency mask based on electromagnetic interference intensity by adopting a complex convolution attention network to suppress electromagnetic interference; and converting the processed signal into an IP voice data packet, and reversely converting the IP voice data packet into a VHF signal through a protocol conversion engine to realize a bidirectional communication link. The voice communication quality and reliability in the polar region environment are improved, and the navigation safety is guaranteed.

The invention relates to the technical field of filling valves, and discloses a filling valve rod and a filling valve, the filling valve rod and the filling valve are applied to the filling valve, the filling valve rod comprises a valve arm and a sealing body, and the sealing body is fixedly arranged at the bottom of the valve arm and used for accurately controlling on-off of a water outlet of the valve body along with the lifting action of the valve arm to achieve accurate opening and closing control over filling materials. The valve arm comprises a driving main arm, a diaphragm and an auxiliary rod, the driving main arm is fixedly sleeved with the diaphragm, the diaphragm is used for achieving dynamic sealing between the valve arm and an inner cavity of the valve body, and filling materials are prevented from leaking from the matching position of the valve rod. According to the filling valve rod and the filling valve, after filling is finished, the collecting bin can accurately reset to receive residual materials dripping from the water outlet port, the situation that the materials drip to pollute packaging bottles, filling stations and the production environment is avoided, the movement track of the collecting bin can be restrained through sliding fit of the transverse groove and the guide arm, meanwhile, deviation and jamming of the collecting bin are avoided, and the stability of reciprocating displacement is guaranteed.