CN100502149C

CN100502149C - A coaxial cable connector

Info

Publication number: CN100502149C
Application number: CNB2007101275251A
Authority: CN
Inventors: 宋志刚
Original assignee: LUOSENBOGE YATAI ELECTRONIC CO Ltd
Current assignee: LUOSENBOGE YATAI ELECTRONIC CO Ltd; Rosenberger Asia Pacific Electronics Co Ltd
Priority date: 2007-06-28
Filing date: 2007-06-28
Publication date: 2009-06-17
Anticipated expiration: 2027-06-28
Also published as: CN101106222A

Abstract

The invention discloses a coaxial cable connector, comprising a male joint and a female joint cooperated with each other by cutting graftage. The male and the female joints respectively are provided with a cable connecting end of end connecting coaxial cable, and the other ends are the cutting graftage ends to cooperate with each other, wherein a clamp ring in an open valve structure and protruding a barb in inner diameter direction is provided on the sleeve-connecting front end on the step of the male joint outer conductor apart from the front end with certain distance; a groove corresponding to the barb on the front end of the clamp ring is opened on the outer diameter surface outside the female joint outer conductor apart from the end face of the cutting graftage end with certain distance. When the male joint are connected with the female joint and the cooperation of cutting graftage is achieved, the barb of the clamp ring is clamped into the groove of the outer conductor outside the female joint, realizing the cutting-graftage locking of the male joint and the female joint. The coaxial cable connector in the invention can realize plugging and unplugging between joints by simple actions, saving operation time.

Description

A kind of coaxial cable connector

Technical field

The present invention relates to the cable connector technology, relate in particular to a kind of coaxial cable connector.

Background technology

Coaxial cable is widely used in various signals and transmits the especially occasion of video signal transmission, and a kind of structure of typical coaxial cable as shown in Figure 1.

Fig. 1 illustrates the center conductor 1 of center for generally being made of copper of coaxial cable, this center conductor 1 is insulated 2 encirclement of layer, coat outer conductor 3 outside this insulating barrier 2, this outer conductor 3 is bellows-shaped or screw thread form, the outer conductor 3 outer crusts 4 that coat nonconductive material one-tenth.

When using above-mentioned coaxial cable, need effective connection between the obstructed cable, so that effectively transmitted signal is avoided the decay of signal.For this reason, used the jockey of multiple coaxial cable in the prior art

Please referring to Fig. 2, this illustrates a kind of coaxial cable connector of prior art.Left part is the public type joint 21 of this coaxial cable connector among Fig. 2, and the right side is a parent form joint 22.Described public type joint 21 has and is used for the connector center conductor 211 that is electrically connected with coax cable center conductor 1, this center conductor 211 is the taper projective structure, its peripheral ring is around insulator 212, insulator 212 is outer around the connector outer conductor 213 that is used for coaxial cable outer conductor 3 electrical ties, and this connector outer conductor 213 has the circumference of protrusion to the counterface direction.The lobed step of these connector outer conductor 213 peripheries is used to overlap connected nut 214.Corresponding with the structure of this public affairs type joint 21, described parent form joint 22 has and is used for the connector center conductor 221 that is connected with coax cable center conductor, and this connector center conductor 221 has the recessed jack that matches with described connector center conductor 211 front ends; The peripheral ring of this connector center conductor 221 is around insulator 222, and this insulator 222 stretches out described center conductor 221 end faces one segment distance to the part that cooperates with public type joint 21 end faces, forms the recessed space that holds described connector center conductor 211 when pegging graft.Described insulator 222 peripheral rings are around connector outer conductor 223, and this connector outer conductor 223 is divided into inside and outside two circumference to the counterface direction, form between the two for holding the space that described public type joint connector outer conductor 213 protrudes circumference; Have screw thread on the front end periphery of this connector outer conductor 223, this threaded portion matches with the internal thread of the nut 214 of described public type joint 21.When described public type joint 21 is pegged graft mutually with parent form joint 22, the center conductor of described public type joint 21 and the projection of outer conductor insert the recessed portion of described parent form joint 22 respectively, and be in contact with one another, for both are cooperated closely, also the nut 214 of described public type joint 21 to be tightened with the screw thread of described parent form joint 22 outer conductor peripheries, be made this connector obtain to cooperate closely.

From above-mentioned prior art constructions as can be known.Under prior art, connector is pegged graft needs to use screw thread pair to cooperate, and causes in the use and can not directly plug, and it is more to expend time in, and has reduced operating efficiency.

Summary of the invention

At the above-mentioned defective of the coaxial cable connector of above-mentioned prior art, the technical problem that the present invention solves is that a kind of coaxial cable connector is provided, and this coaxial cable connector can directly plug easily, need not screw thread and screws.

The present invention discloses a kind of coaxial cable connector, comprise public type joint and parent form joint that mutual grafting cooperates, described public type joint and parent form joint one end are respectively the cable link of termination coaxial cable, the other end is the inserted terminal of pegging graft and cooperating with the other side, wherein, public type joint comprises and is positioned at protruding and be the tubular public affairs type joint outer conductor of the public type joint center conductor of post and outmost turns to inserted terminal of center, and with both the insulation the public type splice insulation body that is positioned at mesosphere, described public type joint center conductor and public type joint outer conductor are concentric; The inserted terminal of described parent form joint comprises that the column parent form joint center conductor of front end face perforate and front end constitute clamping shape and the close-connected double-deck parent form joint outer conductor in rear end, and be positioned at mesosphere with both the insulation parent form splice insulation body, when public type joint and the grafting of parent form joint, described public type joint center conductor inserts in the perforate of front end face of described parent form joint center conductor, described public type joint outer conductor inserts in the described parent form joint outer conductor front end interlayer, on the step of described public type joint outer conductor apart from the front end certain distance, the socket front end has to internal diameter direction projection barb, and the collar of lobe formula structure is opened in employing, this collar stretches out this step certain distance, and has the elastic force that shrinks to internal diameter direction; The outer field external diameter identity distance of described parent form joint outer conductor is on the position of inserted terminal end face, have groove corresponding to described collar front end barb, when described public type joint inserts the parent form joint, the public type joint outer conductor of described collar and socket thereof inserts in the retaining part of described parent form joint outer conductor together, cooperate when putting in place when pegging graft, the barb of described collar snaps in the groove of the outer outer conductor of described parent form joint, realizes the locking latch of public type joint and parent form joint; This collar is socketed with the lock ring of separating that can slide outward before and after it is axially done, this front end of separating lock ring has the equidirectional barb that matches with the barb of described collar on internal diameter direction, when the position of this barb is just can be behind this release hoop mobile, fasten the barb forward position of described collar, and this barb scooped up, realize unlocking function.

Preferably, the rear end face of described collar is propped up by the spacing ring that socket is fixed on public type joint outer conductor rear portion, realizes the axial location of this collar.

Preferably, describedly separate moving axially of lock ring and be subject to the jump ring that is installed on the described spacing ring.

Preferably, described periphery of separating lock ring has former and later two annular protrusions, and the outer surface of above-mentioned projection is through annular knurl processing.

Preferably, forward end one side of groove on the outer diametric plane of described parent form joint outer conductor skin is vertical step, is the inclined-plane by rear end one side.

Compared with prior art, the public type joint of coaxial cable connector provided by the invention closely is connected by overhead structure each other with the parent form joint, this kind structure can both can realize public type joint and the plug each other of parent form joint with simple action, need not threaded together; Therefore, adopt coaxial cable connector provided by the invention to plug quickly.

Description of drawings

Fig. 1 is the structural representation of coaxial cable;

Fig. 2 is the coaxial cable connector structural representation of prior art;

Fig. 3 is the coaxial cable connector structural representation that first embodiment of the invention provides.

Embodiment

Please referring to Fig. 3, this figure is the half sectional view of the coaxial cable connector that provides of first embodiment of the invention.

This coaxial cable connector 3 comprises public type joint 31, parent form joint 32, and both cooperations of pegging graft mutually realize the connection to two sections coaxial cables.Both all have the cable link of termination coaxial cable, and the inserted terminal of pegging graft and cooperating with the other side.Below to be front end towards the inserted terminal direction, be the rear end towards cable link direction.

Described public type joint 31 comprises the public type joint of the tubular outer conductor 313 of public type joint center conductor 311 of the column that is positioned at the center and outmost turns, and the public type splice insulation body 312 that both insulation is positioned at mesosphere.

Described center conductor 311 comprises front end center conductor 311A and rear end center conductor 311B.Described front end center conductor 311A integral body is cylindricity, is made up of three parts, and anterior for having the protrusion front end to the inserted terminal protrusion of taper, this end top of protruding front end is the plane; What be connected with this taper shape protrusion front end is the middle part cylinder of transition; This middle part cylinder connects the rear portion cylinder by the step of projection, has the cylindrical hole with certain diameter in the heart from the cylindrical rear end face in described rear portion.Described rear end center conductor 311B comprises three sections cylinders that diameter increases step by step from the front end to the rear end, is step transition between three sections.Its cylinder external diameter foremost matches with the cylindrical center cylindrical hole in described front end center conductor 311A rear portion, and, insert the center cylindrical hole at front end center conductor 311A rear portion when this cylinder foremost after, the transition shoulder of this front end cylinder and middle part cylinder props up the rear end face of described front end center conductor 311A, realizes the axial location to front end center conductor 311A; Described middle part cylinder and rear portion cylinder adopt step transition equally; The rear end face center of this rear end center conductor 311B has the cylindrical hole that is used to hold coax cable center conductor 1, and the front end of this cylindrical hole is conical.

Described insulator 312 comprises preceding insulator 312A, back insulator 312B, is shell-like.Diametrically, described preceding insulator 312A internal diameter is enclosed within on the middle part cylinder of described rear end center conductor 311B, and its external diameter then props up the inwall of described outer conductor 313; In the axial direction, its front end face props up the rear end face of described front end center conductor 311A near the internal diameter position; Thereafter on the transition shoulder of the end face middle part cylinder that props up described rear end center conductor 311B near the internal diameter position and rear portion cylinder, the close external diameter position of end face then props up on the step on described outer conductor 313 internal diameters thereafter.Described back insulator 312B props up the internal diameter of described outer conductor 313 with its external diameter, and its front end face props up the rear end face of rear end center conductor 311B near the internal diameter position, and its internal diameter is identical with the internal diameter of rear end center conductor 311B.

Described outer conductor 313 is a tubular, is enclosed within on the external diameter of described preceding insulator 312A; Some steps are all arranged on its internal diameter and the external diameter, be used to realize various limit functions.The leading portion of this outer conductor 313 is a thin cylinder, and the position apart from the front end face certain distance has a boss A on the external diameter of this thin cylinder.The step bottom position of this boss A front end is with sealing ring 318.

The unique distinction of present embodiment is, on the boss A of the external diameter of described outer conductor 313, is socketed with and forwards adopts the collar 314 of opening lobe formula structure.The front end of this collar 314 end face direction forward stretches out this step A certain distance, but it still has certain distance foremost apart from outer conductor 313.This collar 314 be foremost a circle to the barb of internal diameter direction button, the material of this collar 314 and structure make it have certain elasticity, can part a little open at radially outer external force effect end, after external force is cancelled, then can inwardly be punctured into original diameter.The rear end face of collar 314 is fixed on outer conductor 313 by socket and props up than the spacing ring 315 at rear portion, makes this collar 314 in the axial direction can't be movable, realizes axial location; The external diameter of the external diameter of described spacing ring 315 and this collar 314 is roughly concordant, and its front end face is close to the rear end face of described step A, realizes the location.The middle part of spacing ring 315 has annular groove, be embedded with spacing jump ring 317 in this annular groove, these collar 314 outer sockets can be slided before and after it is axially done separates lock ring 316, this internal diameter front portion of separating lock ring 316 has the step that internal diameter increases, its front end has the equidirectional barb that matches with the barb of described collar 314 on internal diameter direction, this can separated lock ring 316 when mobile backward just in the inwardly protruded extreme higher position of this barb, fasten the barb forward position of described collar 314, and this barb scooped up, realize unlocking function.This separates lock ring 316 mobilely is limited by described spacing jump ring 317, it can only be moved axially in certain distance, this is when guaranteeing that this is separated lock ring 316 and moves to front position, can unclamp the barb of described collar 314, and when mobile backward, the barb of described collar 314 can be scooped up, realize release.Simultaneously, this is separated also has former and later two annular protrusions on the periphery of lock ring 316, and the outer surface of projection makes it axially be convenient to receive external force through annular knurl processing.

Described parent form joint 32 has three layers of concentric column and cylindrical body equally, comprises the column center conductor 321 of heart and the tubular outer conductor 323 of outmost turns, and with the shell-like insulator 322 of the mesosphere of both insulation.

Described column center conductor 321, its end face towards inserted terminal has axial counterbore, its shape and diameter match with the described front end center conductor 311A of public affairs joint 31, and this periphery of one section that has counterbore is for opening lobe formula structure, make this section radially have certain elasticity, the front end center conductor 311A that said structure and shape are convenient to described public type joint 31 inserts; The rear end face of this column center conductor 321 has the deep hole that front end is taper, and the diameter of this deep hole matches with the center conductor of coaxial cable, and the hole of front end face and rear end face does not connect each other.

Insulator 322A and back insulator 322B before described insulator 322 comprises, insulator 322A entangles the leading portion of described center conductor 321 before described, the front end face of described back insulator 322B then props up the rear end face of center conductor 321, its internal diameter is identical with the deep hole that the rear end face of described column center conductor 321 is opened, and its external diameter then contacts with the internal diameter of outer conductor 323.

Described outer conductor 323 is divided into inside and outside two-layer, is respectively internal layer outer conductor 323A and outer outer conductor 323B, and is enclosed within respectively on the external diameter of described preceding insulator 322A and back insulator 322B; Inside and outside two-layerly be connected together, front portion in rear sleeve be described internal layer outer conductor 323A at internal layer, described outer outer conductor 323B is at skin, a fixed gap is left in the centre, formation clamping shape, the opening of clamping is towards described inserted terminal; This holding sheet can be used to insert the thin cylinder of described public type joint outer conductor 313 leading portions, and in the bottom of this holding sheet, the step to the external diameter direction of described internal layer outer conductor 323A constitutes the holding sheet bottom end face; On the outer wall of described outer outer conductor 323B, apart from the position of front end face certain distance, have groove corresponding to described collar 314 front end barbs, forward end one side of this groove is vertical step-like, is the inclined-plane by rear end one side.Be nested with scolder cover 325 on the internal diameter at the rear portion of described outer outer conductor 323B, both end face contacts site are equipped with rear portion O shape circle 324.The step of the front end face projection of scolder cover 325 props up the rear end face of described back insulator 322B.

When using, described public type joint 31 and described parent form joint 32 be termination coaxial cable separately respectively.Wherein, the center conductor 1 of coaxial cable inserts the cylindrical hole of the 311B rear end face of public type joint 31, the rear end face of insulating barrier 2 front end faces of this coaxial cable and described back insulator 312B offsets, 3 of the outer conductors of coaxial cable insert in the described outer conductor 313, and its outer wall and described outer conductor 313 inwalls are closely socket mutually.For described parent form joint 32, the center conductor 1 of described coaxial cable inserts in the deep hole of described center conductor 321 rear end faces, its insulating barrier 2 inserts the internal diameter of described scolder cover 325, entangle the external diameter of described scolder cover 325 after 3 of its outer conductors are peeled off with this coaxial cable insulation cable body, and can adopt welding manner that this outer conductor and described scolder cover 325 are welded.Above-mentioned termination mode makes the center conductor 1 of public type joint 31 and parent form joint 32 be connected respectively with the coaxial cable end of the same name of its termination with outer conductor 3.

After above-mentioned termination is finished, can realize the grafting of public type joint 31 and parent form joint 32 easily.During grafting, the front end center conductor 311A of public type joint 31 inserts the counterbore of parent form joint 32 center conductors 321 front ends.The thin cylinder of described public type joint 31 leading portions inserts the holding sheet of parent form joint 32 outer conductors 323, simultaneously, described collar 314 props up the end face of the outer outer conductor 323B of described parent form joint to the barb of internal diameter direction button, and under the guide effect of barb end face, along with going deep into and stressed opening of pegging graft, outside outer outer conductor 323B, slide on the diametric plane, when reaching described layer of outer conductor 323B external diameter upper groove, this barb at collar 314 self under the elastic force effect that internal diameter direction shrinks, be absorbed in this groove, realize locking latch.At this moment, the end of the same name of described public type joint 31 and parent form joint 32 is pegged graft mutually and is put in place, and whole grafting process finishes.

In the time the pin and box sub of connector need being separated, add axial external force action backward on lock ring 316 peripheries as long as separate at public type joint, the described lock ring 316 of separating moves backward, the barb of its front end buckles under the inclined-plane of described collar 314 front end barbs, and it is scooped up, the front end barb of collar 314 is broken away from the groove on the diametric plane outside described outer outer conductor 323B, at this moment, can will should from described parent form joint 32, extract by public affairs type joint 31.

The coaxial fitting that the foregoing description provides can realize the direct plug between public type joint 31 and the parent form joint 32, need not to use screw thread to screw, and makes to connect simply, shortens the operating time.

The principle of above connector is specially adapted to the DIN type interface of radio frequency (RF) coaxial connector, described DIN type interface is owing to be a kind of radio frequency (RF) coaxial connector Interface Standard that is proposed by German standard association (Deutsches Institut f ü r Normung), therefore in the world, especially be commonly referred to as DIN type interface in Europe; This connector interface is called 7/16 or L29 (radio frequency (RF) coaxial connector) interface at home.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims

1, a kind of coaxial cable connector, comprise public type joint and parent form joint that mutual grafting cooperates, described public type joint and parent form joint one end are respectively the cable link of termination coaxial cable, the other end is the inserted terminal of pegging graft and cooperating with the other side, wherein, public type joint comprises and is positioned at protruding and for the public type joint center conductor of column be positioned at the public type joint of the tubular outer conductor of outmost turns to its inserted terminal of center, and with the public type splice insulation body that is positioned at mesosphere of described public type joint center conductor and public type joint outer conductor insulation, described public type joint center conductor and public type joint outer conductor are concentric; The inserted terminal of described parent form joint comprises that the column parent form joint center conductor of front end face perforate and front end constitute clamping shape and the close-connected double-deck parent form joint outer conductor in rear end, and between described parent form joint center conductor and parent form joint outer conductor and with both the insulation parent form splice insulation body, when public type joint and the grafting of parent form joint, described public type joint center conductor inserts in the perforate of front end face of described parent form joint center conductor, described public type joint outer conductor inserts in the described parent form joint outer conductor front end interlayer, it is characterized in that, on the step of described public type joint outer conductor apart from its front end certain distance, the socket front end has to internal diameter direction projection barb, and the collar of lobe formula structure is opened in employing, this collar stretches out this step certain distance, and has the elastic force that shrinks to this internal diameter direction; The outer field external diameter identity distance of described parent form joint outer conductor is on the position of the inserted terminal end face of parent form joint, have groove corresponding to described collar front end barb, when described public type joint inserts the parent form joint, the public type joint outer conductor of described collar and socket thereof inserts in the retaining part of described parent form joint outer conductor together, cooperate when putting in place when pegging graft, the barb of described collar snaps in the described groove of the outer field outer diametric plane of described parent form joint outer conductor, realizes the locking latch of public type joint and parent form joint; This collar is socketed with the lock ring of separating that can slide outward before and after it is axially done, this front end of separating lock ring has the equidirectional barb that matches with the barb of described collar on the direction of footpath within it, when the position of equidirectional barb that should match with the barb of described collar is just can be behind this release hoop mobile, fasten the barb forward position of described collar, and the barb of this collar scooped up, realize unlocking function.

2, coaxial cable connector according to claim 1 is characterized in that, described collar rear end face is propped up by the spacing ring that socket is fixed on public type joint outer conductor rear portion, realizes the axial location of this collar.

3, coaxial cable connector according to claim 2 is characterized in that, describedly separates moving axially of lock ring and is subject to the jump ring that is installed on the described spacing ring.

According to each described coaxial cable connector of claim 1-3, it is characterized in that 4, described periphery of separating lock ring has former and later two annular protrusions, the outer surface of above-mentioned projection is through annular knurl processing.

According to each described coaxial cable connector of claim 1-3, it is characterized in that 5, the described groove on the outer diametric plane of described parent form joint outer conductor skin is vertical step by this groove front end one side, is the inclined-plane by this groove rear end one side.