CN2240207Y

CN2240207Y - Coaxial cable junction

Info

Publication number: CN2240207Y
Application number: CN 95211334
Authority: CN
Inventors: 李进贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-15
Filing date: 1995-05-15
Publication date: 1996-11-13
Anticipated expiration: 2005-05-15

Abstract

The utility model relates to a coaxial cable junction, comprising a front connector and a rear connector. The inner edge of the front connector is fixedly provided with a bayonet joint, an insulated block and an isolated pipe; the rear end of the front connector is provided with internal screw-threads. The front end of the bayonet joint is convexly exposed at the front edge of the front connector, and the rear end of the bayonet joint is provided with a contacting section. The contacting section extends at the inner edge of the front end of the front connector and is contained by the insulated block. The front end of the isolated pipe is embedded with the rear end of the insulated block. The rear inner edge of the isolated pipe is provided with a diameter expansion port which tapers forwards gradually. The front end of the rear connector is provided with external screw-threads, the inner edge of the rear connector is embedded with a clamp ring, the outer edge of the clamp ring is provided with more than two openings, and the openings rotate around the outer circumference edge of the clamp ring. The utility model can make the joints of coaxial cable wires achieve a convenient construction and the accurate joints of centerlines.

Description

Coaxial fitting

The utility model relates to a kind of coaxial fitting, and the coaxial cable that is used for transmitting the multidigit signal is connected in group through-connection station.

Coaxial fitting commonly used mainly is made up of forward and backward connector.Thereafter connector includes a nut and a C type clamp ring; Front connector include one with bolted joint, an isolated tube, collets and the latch of nut bolt of back connector.During operation, elder generation is exposed outside with the lead of the afterbody of coaxial cable, external insulation layer is peeled off suitable length, cover is stretched in the connector of back, after making the aluminum pipe position of coaxial cable be subjected to the clamping of C type clamp ring, again protruding unstripped aluminum pipe and the inner insulating layer in it of front end that is exposed to the back connector of cable removed suitable length, make the cable inner edge at this position form a cannelure.The isolated tube afterbody of front connector embeds in this cannelure, and it is fixing the front and back connector to be spirally connected again, and the inside conductor cover of cable is stretched into the center of collets, and is connected the end in latch, is connected with the joint of group through-connection station by this latch front end.Aluminum pipe between the inside and outside insulating barrier then connects with the inner edge of front connector.Make the cable tail end block the position by the formed coaxial fitting of forward and backward connector with coaxial transmission signal, avoid producing noise.Work progress by aforesaid coaxial fitting can go out, with inner insulating layer dig establish cannelure quite the difficulty, must to the destination, just can construct at cable pulling, and during construction, cannelure is still kept on the same center line with cable, avoiding the inside conductor off normal, even therefore professional and use special tool(s) that the error of uneven thickness is also arranged unavoidably; If find error at the construction field (site), then must will be connected the cable dismounting of finishing, and block its tail end and handle again again with the back connector, cause on inconvenience in the construction and the timeliness and waste; If after construction,, then can make the signal that this cable transmits often produce noise, cause construction quality bad because of carelessness does not find error; In addition, the inner member of aforesaid forward and backward connector must just can finish described effect, and C type clamp ring have the outer rim that adjustable opening is held on cable on same center line, so in fact C type clamp ring is not proper circle.Though in being embedded at nut, by the spacing and tool correcting function slightly in inclined plane, in use for some time, the situation that the outer rim of the aluminum pipe of cable still has plastic deformation on respect to the position of opening takes place, and causes inside conductor to opening direction generation off normal; The rear end of the isolated tube in the front connector is for overlapping the inner edge of the aluminum pipe of stretching in cable in addition, to keep a suitable gap with the inner edge of front connector, but during fabrication, unsettled place, the rear end of the isolated tube of this kind structure also is easy to generate the phenomenon of deflection and influences the construction and the accuracy of center line.

The new purpose of this practicality is to provide a kind of coaxial fitting, can make cable stressed evenly, prevent distortion, aluminum pipe with this cable directly overlaps in the circumscribed isolated tube of stretching in front connector coaxial to keep again, needn't dig at the aluminum pipe inner edge of cable and establish cannelure, make cable when engaging, can get rid of, engage accurately and the purpose of easy construction to reach with influencing joint accuracy one various factors.

The purpose of this utility model is achieved in that a kind of coaxial fitting, is made of a front connector and a back connector, is installed with a connection-peg, collets, an isolated tube in regular turn behind the interior cause forward direction of its front connector; Back connector family one hollow tube, its inner rim is embedded a clamp ring, it is characterized in that the rear end of described front connector is provided with internal thread, the protruding leading edge that is exposed to front connector of pin front end of pegging graft, its rear end is provided with a contact site, and this contact site extends the front end inner edge of front connector and contained by collets; The front end of isolated tube with collets rear end center embedding string, isolated tube rear portion inner edge has the hole enlargement mouth of convergent forward; The front end of back connector is provided with the external screw thread that can be spirally connected with front connector, and the outer rim of the clamp ring that its inner rim was embedded is provided with plural opening, and this split ring is around in the outer peripheral edges of clamp ring.

The purpose of this utility model also can be realized by another mode: a kind of coaxial fitting, include the back connector, be embedded with a clamp ring in this back connector, it is characterized in that described back connector is two, the front end of this back connector is provided with external screw thread, the outer rim of the clamp ring that its inner rim was embedded is provided with plural opening, this split ring is around in the outer peripheral edges of clamp ring, be provided with a middle base between two back connectors, this middle base is a hollow tube, and two ends have internal thread, be spirally connected with two back connectors respectively, the its inner rim middle-end is provided with a double end pin, and this double end pin middle-end outer rim is arranged with double end collets again, and two ends are connected an isolated tube respectively.

The effect that the utility model can be reached by the aforementioned structure feature has convenient construction and improves the coaxial linking accuracy of cable.During construction, because cable is before cover is stretched in the back connector, as long as divest a part of protruding outer insulator that is exposed to the cable of back connector, and after making the exposed suitable length of inside conductor, directly being inserted in front connector gets final product, needn't dig at the aluminum pipe inner edge and establish cannelure, therefore can reach the purpose of easy construction; On coaxial accuracy, stretch in the back during connector at cable jacket, be held on aluminum pipe by the forward and backward staggered clamp ring of opening, therefore stressed comparatively even, can not cause the situation of off normal or distortion, but the inside conductor of correcting cable; Before being spirally connected of forward and backward connector, the inner insulating layer of cable does not dig establishes cannelure, can prevent to make the off normal of the inside conductor of cable because of digging cannelure, has reduced the possibility of center off normal; The outer rim of isolated tube is faced mutually with the inner edge of front connector, needn't leave the gap, except making more simple and easyly, also can make it to be difficult for crooked, off normal and influence the coaxial linking quality of cable after installation; The front connector rear end is provided with internal thread in the utility model, and, therefore the back connector is provided with external screw thread, increased the accommodation space in the front connector, makes isolated tube can directly be sheathed on the outer rim of cable aluminum pipe.The utility model also is applicable to the coaxial connection of two cables applicable to cable is connected in group through-connection station, the accuracy height and the easy construction of connection, thus reach the new purpose of this practicality.

The accompanying drawing drawing is described as follows:

Fig. 1 three-dimensional exploded view of the present utility model.

The partial sectional view of connector before and after Fig. 2 the utility model

Partial sectional view after connector is spirally connected before and after Fig. 3 the utility model.

Second kind of embodiment three-dimensional exploded view of Fig. 4 the utility model.

Structural representation after second kind of embodiment of Fig. 5 the utility model is spirally connected.

Below in conjunction with embodiment and accompanying drawing detail explanation the utility model thereof.

See also Fig. 1, Fig. 2, the utility model includes a front connector 10, a grafting pin 20, one collets 30, an isolated tube 40, a clamp ring 50 and a back connector 60.Wherein, front connector 10 is a hollow tube, and front outer has external screw thread 101, and the rear end has internal thread 102.Back connector 60 is a hollow tube, and front end has the external screw thread 601 that the internal thread 102 with front connector 10 rear ends is spirally connected.Its inner rim is provided with clamp ring 50, and these clamp ring 50 lateral margins have opening 501.And opening 501 is surrounded on the arrangement of clamp ring, and forward and backward staggered interval setting, produces inside bundle when clamp ring 50 is opened outside being subjected to external force by opening 501 and closes the outer rim of chucking power in order to the aluminum pipe 703 of clamping cable 70.Before operation, earlier with the afterbody stripping portion of cable 70 insulating barrier 701 especially, and after making inside conductor 702 be exposed to outward, cover stretches into the center of back connector 60, be held on the outer rim of aluminum pipe 703 by clamp ring 50, force in cable 70 more backward, can make clamp ring 50 displacement backward thereupon, and the inner edge of embedding back connector 60, by clamp ring 50 and back connector 60 corresponding Shu Heyuan 502,602 bundles close, and the application of force backward is big more, described Shu Heyuan 502,602 effect component in being tilted to are big more, can make the chucking power of aluminum pipe 703 of clamp ring 50 clamping cables 70 big more, thereby make cable 70 fixing with back connector 60, last, again the tail end of cable 70 is directly embedded the rear end of front connector 10, before inciting somebody to action again,

back connector

10,60 corresponding internal and external threads 102,602 screw togather, and promptly finish assembling.

The forward and

backward connector

10,60 that assembling is finished and the annexation of cable, 70 see also Fig. 3.Collets, 30 are the inner edge that is fixedly arranged on front connector 10, and the center of collets is provided with a through hole, and the contact site 201 that latch 20 rear ends are the jaw shape is inserted in this through hole, and the front end of latch 20 extends protruding the place ahead that is exposed to front connector forward; These collets 30 rear end outer rims are the tapering type again, and embed the center of isolated tube 40 Inner Front Ends, and isolated tube 40 is fixedly arranged in the front connector 10.Front connector 10, the pin 20 of pegging graft, insulation 30 and isolated tube 40 are on same center line.Described isolated tube 40 inner edges have an awl mouth 401 that contracts in forward again, and this awl mouthfuls 401 tilts to extend back, and connect backward with awl mouthfuls 401 to have a hole enlargement mouth 402, and the internal diameter of this hole enlargement mouth 402 matches with the external diameter of the aluminum pipe 703 of cable 70.The axle center of awl mouthfuls 401 and hole enlargement mouth 402 also with aforesaid center line on same straight line; When after the clamp ring 50 of connector 60 engage with cable 70; And the internal thread 102 of the external screw thread 601 of its front end of mat and front connector rear end is when being spirally connected; The afterbody aluminum pipe 703 that cable 70 is exposed to clamp ring 50 front ends can embed hole enlargement mouth 402; Inside conductor 702 then can be connected with latch 20 rear side contact sites 201 via the guiding of cone mouth 401; Lead heavy line 702 in making and peg graft pin 20 on same center line; After; By pin 20 and front connector 10 front ends of pegging graft; Be connected with the generation of group through-connection station head; Can reach the basic function that makes cable 70 transmission signals

By the annexation of said elements, can make the coaxial switching engineering of cable 70 can reach convenient construction and improve the effect of accuracy.Wherein aspect construction, go up in cable 70 tail ends before cover is stretched in back connector 60, as long as divest a part of external insulation layer 701, and after making aluminum pipe 703 be subjected to the clamping of clamp ring 50, directly be inserted in the isolated tube interior 40 in the front connector 10,, and make the guiding of inside conductor 702 via awl mouth 401 by hole enlargement mouth 402 location, and accurate fixing, needn't establish cannelure and cause inconvenience in the construction as between inside and outside insulating barrier, digging again so that the deficiency on the accuracy.Aspect accuracy, remove the aforementioned workflow of avoiding easily causing error, reduce outside the error, aforesaid forward and backward

connector

10,60 and be located at element in it, also comparatively accurate in design, wherein, cable 70 through after during connector 60, fixing by holding ring 50, and holding ring 50 is to produce resilient clamp cable 70 by opening 501 forward and backward staggered circulations, make cable 70 outer rims evenly stressed, cable 70 is taken place because of the situation that the uneven distortion of the application of force is directed at the center line off normal of inside conductor 702; When cable 70 is connected with front connector 10 and inner each element thereof via clamp ring 50 clamping accurately again, because isolated tube 40 directly is sheathed on aluminum pipe 703 outer rims of cable 70, but so tight fit between isolated tube 40 outer rims and front connector 10 inner edges, needn't leave the gap, make the accuracy of center line of isolated tube 40 higher, can not produce error and off normal when making and assembling, and isolated tube 40 is directly sheathed and the outer rim of the aluminum pipe 703 of cable 70, can also obtain comparatively stable composition surface, thereby the factor of the various center line off normals that may cause of forgoing makes the joint of cable 70 comparatively accurate.

Front connector 10 and back connector 60 are spirally connected with internal and external threads in the utility model, make it to increase the accommodation space in it, thereby guarantee that isolated tube can directly be sheathed on the outer rim of the aluminum pipe of cable.Again, by seeing among Fig. 3, peel off though the external insulation layer of cable 70 has partly, during with 60 combinations of back connector, its front end still can embed back connector 60 afterbody inner edges, can prevent the moisture content intrusion, strengthens its seal.

Above-mentioned front connector 10 and back connector 60 and inner member thereof are to aim at cable 70 is connected usefulness in group through-connection station, and when practical operation, also often having need be with the situation of two cables polyphones.Execution mode of the present utility model this moment second kind of embodiment as shown in Figures 4 and 5, in the present embodiment, front connector 10 is replaced with a middle base 80, and being connected two cables 70 that are subjected to back connector 60 and clamp ring 50 clampings respectively can finish at the two ends of middle base 80.This middle base 80 is a ducted body, two ends all have internal thread 801 and in order to two after connector 60 be spirally connected.Its inner rim middle-end is provided with a double end pin 802, outer rim is arranged with double end collets 803 again between the double end pin 802, two ends then are connected foregoing isolated tube 40 respectively, and this isolated tube 40 two-phase mappings and establish inner edge with middle base 80, with middle base 80 inner edges mutually Lin Chu fit tightly.Its combination such as preceding, the external insulation layer 701 of the tail end of two cables 70 is divested, and make outside inside conductor 702 is exposed to, after being set in two respectively behind connector 60 and two clamp rings 50, make this back connector 60 respectively spiral shell be located at the two ends of middle base 80, the aluminum pipe 703 that can make two cables 70 is respectively through the correcting of two isolated tubes 40, and makes inside conductor 702 again by double end pin 802 same tandem shafts, and still can make the joint of cable 70 reach the purpose that easy construction and center line accurately are connected.

Claims

1, a kind of coaxial fitting is made of a front connector and a back connector, is installed with a connection-peg, collets, an isolated tube in regular turn behind the interior cause forward direction of its front connector; Back connector family one hollow tube, its inner rim is embedded a clamp ring, it is characterized in that the rear end of described front connector is provided with internal thread, the protruding leading edge that is exposed to front connector of pin front end of pegging graft, its rear end is provided with a contact site, and this contact site extends the front end inner edge of front connector and contained by collets; The front end of isolated tube with collets rear end center embedding string, isolated tube rear portion inner edge has the hole enlargement mouth of convergent forward; The front end of back connector is provided with the external screw thread that can be spirally connected with front connector, and the outer rim of the clamp ring that its inner rim was embedded is provided with plural opening, and this split ring is around in the outer peripheral edges of clamp ring.

2,, it is characterized in that the outer rim of the front end of described front connector is provided with external screw thread according to a kind of coaxial fitting of claim 1.

3,, it is characterized in that the contact site of described grafting pin rear end is the jaw shape according to a kind of coaxial fitting of claim 1.

4,, it is characterized in that described collets rear end outer rim is tapering and embeds in the taper hole at center of isolated tube front end according to a kind of coaxial fitting of claim 1.

5,, it is characterized in that the described forward and backward staggered interval of opening that is surrounded on the clamp ring outer rim is provided with according to a kind of coaxial fitting of claim 1.

6, according to a kind of coaxial fitting of claim 1 or 5, it is characterized in that the outer rim of described clamp ring rear end has the Shu Heyuan of external diameter convergent, its tapering is identical with the tapering of the Shu Heyuan of back connector rear end inner edge.

7,, it is characterized in that the diameter of the hole enlargement mouth of described isolated tube rear end matches with the external diameter of the aluminum pipe of same specification cable according to a kind of coaxial fitting of claim 1.

8, a kind of coaxial fitting, include the back connector, be embedded with a clamp ring in this back connector, it is characterized in that described back connector is two, the front end of this back connector is provided with external screw thread, the outer rim of the clamp ring that its inner rim was embedded is provided with plural opening, this split ring is around in the outer peripheral edges of clamp ring, be provided with a middle base between two back connectors, this middle base is a hollow tube, and two ends have internal thread, be spirally connected with two back connectors respectively, the its inner rim middle-end is provided with a double end pin, and this double end pin middle-end outer rim is arranged with double end collets again, and two ends are connected an isolated tube respectively.

9, a kind of coaxial fitting according to Claim 8, it is characterized in that the outer rim of described two isolated tubes that are connected with the double end collets and the inner edge tight fit of middle base, inner edge side two is respectively equipped with the awl mouth that expands outwardly, the one end is connected in collets, and the other end is sheathed on the outer rim of insulating barrier aluminum pipe of the cable of same specification.

10, a kind of coaxial fitting according to Claim 8 is characterized in that the described forward and backward staggered interval of opening that is surrounded on the clamp ring outer rim is provided with.