High sealing radio frequency coaxial-cable pin type connectorThe utility model relates to a kind of connector that tightness is improved between a kind of radio frequency coaxial-cable pin type connector, especially cable and the connector.
In the process that designs, constructs, keeps in repair network for many years, what failure rate was higher is because the cable connector poor sealing performance, steam and water enter connector, and cause the oxidation of connector interior metal parts, even steam, water enter in some equipment by connector, cause the various faults of network, reduced the reliability and the useful life of network.
Originally in order to solve sealing problem, adopted remedial measures such as thermoplastic sleeve pipe heat-sealing connector usually, because of high-altitude in the open air, construction is inconvenient, and effect is also undesirable.
The utility model purpose provides a kind of connector of high sealing performance, and it can keep sealing property and good radiofrequency characteristics under the lowered in field environment for a long time, and installs simple and easy.
This purpose is to adopt two kinds of methods of double sealing and segmentation lock ring to realize.
First, be with between the cover [10] of connector and the seat [9] and connector cover [10] O RunddichtringO between cable change twice [1] and [2] and [3] and [4] into, and two seals circle [3] all uses rectangular seal with [4] between cover [10] and the cable, to increase sealing effectiveness.Be in the sealing ring [2] and [3] and isolate from outer air of internal layer, be difficult for wearing out, even outer sealing ring [1] is aging with [4], internal layer sealing ring [2] can guarantee still that with [3] connector has enough tightnesses, thereby has prolonged useful life.
Second, a part with original connector---lock ring cover (it not only lock ring cable oversheath but also its outer conductor of lock ring) is separated into two individual part [5] and [6], difference lock ring cable outer conductor and oversheath, do not pin down mutually, thereby improved the tensile strength of cable and connector and the reliability of ground connection.
Concrete structure of the present utility model is provided by following examples and Figure of description thereof.Accompanying drawing is the profile according to the high sealing radio frequency coaxial-cable connector that the utility model proposes.
Describe in detail according to the specific design details that the utility model proposes below in conjunction with accompanying drawing.
Cable is put into this connector by technological requirement cutting, the seat of connector [9] with the cover [10] by being threaded, when screw thread is screwed into certain depth, cable outer conductor tighten ring [7] interacts with pad [8], produce opposite thrust, along with screw thread screws gradually, active force is strengthened, so outer conductor lock ring cover [5] and oversheath lock ring cover [6] have under the effect of the tightening ring on inclined-plane at two separately, opening draws in, and the lock ring internal diameter dwindles, and embraces the oversheath and the outer conductor of cable tightly, the power of connector grasping cable is strengthened, and ground connection is more reliable; Two sealing rings [3] in the cover also are out of shape to center of circle direction under this power effect with [4], and the extruded cable oversheath has been finished the double sealing to cable; Simultaneously, the two seals circle [1] on the connector holder [9] and [2] are squeezed and successively enter gap between seat [9] and the cover [10], have finished seat [9] simultaneously and have overlapped double sealing between [10].