CN100508287C

CN100508287C - Connection structure of the coaxial cable and connector

Info

Publication number: CN100508287C
Application number: CNB2006100379954A
Authority: CN
Inventors: 殷国平
Original assignee: ZHENJIANG TONGDA ELECTRONICS CO Ltd
Current assignee: ZHENJIANG TONGDA ELECTRONICS CO Ltd
Priority date: 2006-01-25
Filing date: 2006-01-25
Publication date: 2009-07-01
Anticipated expiration: 2026-01-25
Also published as: CN101009403A

Abstract

The invention belongs to communication equipment fittings, relates to a coaxial-cable and linker connection structure which is used to connect the coaxial-cable and linker. It includes coaxial-cable and linker shell, the inner screw thread is set in the service entrance of the linker shell; the transition shell is connected with the inner screw thread of the service entrance via the fore end of the outer screw thread, the back end of the transition shell is connected with turnbuckle via the outer screw thread; Closing ring is set at the fore end of the inner hole of the transition shell, the closing ring comprises two half-coils, and the first group of portrait slot is set at the wall of the closing ring, the fore end of the closing ring is limited, the back end of the closing ring is pressed to the inner hole of the transition shell; there is clamp sheath at the back end of the transition shell, the outer wall of the clamp sheath is set with the inner wall of the transition shell to pyramidal face which matches with each other, the second group of the portrait slot is set at the wall of the clamp sheath, the back end of the clamp sheath is limited. The invention is simple, installation is convenient, and the connection is firm, the hermeticity is well.

Description

Coaxial cable and connector connecting structure

Technical field

The invention belongs to the communication apparatus accessory, relate to a kind of coaxial cable and connector connecting structure that coaxial cable is connected with coaxial cable connector of being used for.

Background technology

When coaxial cable is connected with coaxial cable connector, coaxial cable end need be stretched into the housing of connector, the conductor that makes coaxial cable is connected with terminal in the connector, and the insulating coating of coaxial cable then is connected with the housing of connector by certain syndeton.Existingly be used for that the insulating coating of coaxial cable and coaxial cable connector are carried out connection structure connecting and exist the not high defective of connection reliability mostly: show that on the one hand overcoat and housing bonding strength are lower, when external force pulling cable, make the coupling part of conductor directly stressed easily, cause conduction contact part loose contact to occur, influence the normal operation of circuit; Show that on the other hand the sealing between connector shell and the coaxial cable insulation cable overcoat is relatively poor, break down because of water inlet easily, be difficult to answer the occasion of some outdoor application.

Summary of the invention

Technical problem to be solved by this invention provides a kind of simple in structure, easy for installation, make simultaneously between coaxial cable insulation cable overcoat and the connector shell be connected firmly, the coaxial cable and the connector connecting structure of good airproof performance.

Coaxial cable of the present invention and connector connecting structure include the connector shell that a coaxial cable that has a cylindrical insulating coating and inside are equipped with coaxial link, connector shell has a columniform incoming line, and the incoming line place is provided with internal thread; Have a transition shell to be connected with the screw-internal thread fit of incoming line by the external screw thread of front end, the rear end of transition shell is connected by external screw thread and a swivel nut, and the transition shell has the endoporus that passes for coaxial cable; Endoporus front end at the transition shell is provided with a collar, this collar is made up of two half-turns that are separated, have the first group of vertical slit that leads to the rear end on the barrel of collar, make that the back segment of collar can be within the specific limits to the center position strain, the collar front end is by the step axial limiting on the connector shell incoming line inwall, and the part that the rear end of collar can strain is pressed in the endoporus of transition shell; Be provided with a gripping sleeve in the endoporus rear end of transition shell, the conical surface that the inwall of the outer wall of gripping sleeve and transition shell endoporus rear end is arranged to cooperatively interact, have the second group of vertical slit that leads to front end on the barrel of gripping sleeve, make that the gripping sleeve leading portion can be within the specific limits to the center position strain, the gripping sleeve rear end is by the step axial limiting on the swivel nut inwall.

Between incoming line inwall and transition outer shell outer wall, be provided with first sealing ring, between swivel nut inwall and transition outer shell outer wall, be provided with second sealing ring, between swivel nut rear inner wall and coaxial cable insulation cable overcoat, be provided with the 3rd sealing ring.

Back segment at the collar inwall can have notch, is used for increasing the coefficient of friction of inwall.Leading portion at the gripping sleeve inwall also has the annular groove that is used for increasing coefficient of friction.

The present invention is simple in structure, reasonable in design; When the transition shell is threaded with connector shell and swivel nut, can carry out reliable clamping to the screen and the insulating coating of coaxial cable respectively by collar and gripping sleeve, improved its bonding strength greatly; Simultaneously because the sealing ring sealing is all arranged in each coupling part, thereby improve the waterproof sealing performance of whole device, thereby can be applicable to outdoor occasion.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of collar;

Fig. 3 is the end face structure schematic diagram of collar;

Fig. 4 is the structural representation of gripping sleeve.

Embodiment

As shown in Figure 1, this coaxial cable and connector connecting structure include connector shell 1, transition shell 2, swivel nut 3, collar 4, gripping sleeve 5 and have the coaxial cable 6 of cylindrical insulating coating, are connected by threaded engagement respectively between transition shell 2 and connector shell 1 and the swivel nut 3.

Transition shell 2 front ends are provided with collar 4, collar is made up of (as Fig. 2 two half-turns that are separated, shown in Figure 3), the front end of collar is spacing by the step on the connector shell 1 incoming line inwall, the back segment of collar is pressed into the endoporus of transition shell 2, because the collar back segment has first group of vertical slit 41, the diameter of bore of the shell of transition simultaneously 2 is slightly less than the external diameter of collar back segment, thereby can force the collar back segment to be out of shape to central elastic, the collar inwall is pressed on the screen of coaxial cable, can also have notch 42 on the inwall of collar back segment, to increase the coefficient of friction between itself and the screen.

As shown in Figure 1, the rear end of transition shell 2 is provided with gripping sleeve 5, cooperate by the conical surface 6 between the inwall of gripping sleeve leading portion outer wall and transition shell back segment, the rear end of gripping sleeve is spacing by the step on swivel nut 3 inwalls, like this when swivel nut 3 and transition shell 2 are connected, just gripping sleeve 5 is pressed into forward, because the gripping sleeve leading portion has second group of vertical slit 51, thereby under the effect of the conical surface 6, the gripping sleeve leading portion can be out of shape to central elastic, and the gripping sleeve inwall is pressed on the insulating coating of coaxial cable.

As shown in Figure 4, have some annular grooves 52 on the inwall of gripping sleeve leading portion, can increase the coefficient of friction between gripping sleeve inwall and the coaxial cable insulation cable overcoat, make clamping more firm.

As shown in Figure 1, between the incoming line inwall of connector shell 1 and transition shell 2 outer walls, be provided with first sealing ring 71, between swivel nut 3 inwalls and transition shell 2 outer walls, be provided with second sealing ring 72, between swivel nut rear inner wall and coaxial cable insulation cable overcoat, be provided with the 3rd sealing ring 73.

Claims

1, a kind of coaxial cable and connector connecting structure, include the connector shell (1) that a coaxial cable (6) that has a cylindrical insulating coating and inside are equipped with coaxial link, it is characterized in that: connector shell (1) has a columniform incoming line, and the incoming line place is provided with internal thread; Have a transition shell (2) to be connected with the screw-internal thread fit of incoming line by the external screw thread of front end, the rear end of transition shell is connected by an external screw thread and a swivel nut (3), and the transition shell has the endoporus that passes for coaxial cable; Endoporus front end at the transition shell is provided with a collar (4), this collar is made up of two half-turns that are separated, have the first group of vertical slit (41) that leads to the rear end on the barrel of collar, the collar front end is by the step axial limiting on the connector shell incoming line inwall, and the rear end of collar is pressed in the endoporus of transition shell (2); Be provided with a gripping sleeve (5) in the endoporus rear end of transition shell, the conical surface (6) that the inwall of the outer wall of gripping sleeve and transition shell endoporus rear end is arranged to cooperatively interact, have the second group of vertical slit (51) that leads to front end on the barrel of gripping sleeve, the gripping sleeve rear end is by the step axial limiting on the swivel nut inwall.

2, coaxial cable according to claim 1 and connector connecting structure, it is characterized in that: between connector shell incoming line inwall and transition outer shell outer wall, be provided with first sealing ring (71), between swivel nut inwall and transition outer shell outer wall, be provided with second sealing ring (72), between swivel nut rear inner wall and coaxial cable insulation cable overcoat, be provided with the 3rd sealing ring (73).

3, coaxial cable according to claim 1 and 2 and connector connecting structure is characterized in that: the back segment at the collar inwall has notch (42).

4, coaxial cable according to claim 3 and connector connecting structure is characterized in that: the leading portion at the gripping sleeve inwall has annular groove (52).