CN211126366U

CN211126366U - Radio frequency coaxial connector with spiral connection structure and adapted to armor cable

Info

Publication number: CN211126366U
Application number: CN202020211619.8U
Authority: CN
Inventors: 蔡周武
Original assignee: Suzhou Knox Communication Technology Co ltd
Current assignee: Suzhou Knox Communication Technology Co ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-07-28
Anticipated expiration: 2030-02-20

Abstract

The utility model relates to a join in marriage radio frequency coaxial connector who connects armour cable with spiral connection structure, the armour cover is established on the cable, radio frequency coaxial connector includes that shell and part set up the bush in the shell, shell and bush fixed connection are passed to the one end of cable, the armour is located between shell and the cable, the surface of armour is equipped with the heliciform recess along its circumference direction, the shell inner wall is provided with along its circumference direction can with the heliciform recess matched with heliciform flange of armour, mutually support through heliciform recess and heliciform flange in the armour screw in shell makes armour and shell relatively fixed. The spiral flange that the connector passes through the shell is direct to be mutually supported with the heliciform recess of armour and is makeed armour and shell relatively fixed, simple structure can also guarantee the reliability of connecting.

Description

Radio frequency coaxial connector with spiral connection structure and adapted to armor cable

Technical Field

The utility model belongs to the technical field of the radio frequency coaxial connector, concretely relates to join in marriage radio frequency coaxial connector who connects armoured cable with spiral connection structure.

Background

With the rapid development of modern electronic equipment, low-loss and high-reliability cable components are used more and more, and in the using process, no other protective layer exists outside the whole cable sheath, so that the cable is easily extruded and twisted, and the electrical property is unstable. While conventional rf coaxial connectors cannot attach armor cables. In recent years, connectors capable of being connected with an armored cable have been developed gradually, for example, a fixing structure of stainless steel hose armor of a coaxial cable and a radio frequency connector disclosed in chinese patent CN104092067B includes an armor arranged on a cable, the armor is a stainless steel hose and is fixedly connected to a housing of the connector by a sleeve, the sleeve is provided with an external thread and a shaft shoulder or an inner wall is provided with a spiral flange; the spring is screwed into the groove of the armor, and the sleeve of the shaft shoulder is in threaded connection with the connector or the sleeve of the spiral flange is screwed into the groove of the armor and is in threaded connection with the connector. Although the radio frequency coaxial connector can be connected with the armor cable, the sleeve or the sleeve and the spring are required to be arranged between the armor cable and the connector, so that the structure is complex, the number of parts is large, the assembly is complex, and the assembly time is long.

Disclosure of Invention

In order to solve the deficiencies in the prior art, the utility model provides a modified has the radio frequency coaxial connector who connects armour cable of spiral connection structure.

For solving the technical problem, the utility model discloses a following technical scheme:

The radio frequency coaxial connector comprises a shell and a bushing, wherein the bushing is partially arranged in the shell, one end of the cable penetrates through the shell and is fixedly connected with the bushing, the armor is located between the shell and the cable, a spiral groove is formed in the outer surface of the armor along the circumferential direction of the armor, a spiral flange which can be matched with the spiral groove of the armor is arranged on the inner wall of the shell along the circumferential direction of the inner wall of the shell, and the armor is screwed into the shell and is relatively fixed with the shell through the mutual matching of the spiral groove and the spiral flange.

In a further embodiment, the inner wall of the housing is provided with a stop for limiting the length of the armor screwed into the housing.

In a further embodiment, the end of the cable is welded through the armor, jacket and liner.

In further embodiments, the armor is a flexible armor. Such as flexible spring armor.

In a further embodiment, the housing is made of metal.

In a further embodiment, the rf coaxial connector further comprises a connecting assembly having one end detachably connected to an external component and the other end connected to the housing, and the bushing is located between the connecting assembly and the housing.

In a further embodiment, the connecting assembly comprises a connecting sleeve coaxially connected with the housing, and the housing is connected with the connecting sleeve through threads.

In a further embodiment, the outer surface of one end of the housing is provided with an external thread, and the inner wall of the connecting sleeve is provided with an internal thread which can be in threaded fit with the external thread of the housing.

Furthermore, the inner wall of the connecting sleeve is also provided with a resisting part for resisting the lining between the connecting sleeve and the shell.

In a further embodiment, the bushing includes a first bushing portion located between the connection assembly and the housing and a second bushing portion extending from an end of the first bushing portion along a length of the housing into the housing.

In a further embodiment, the radio frequency coaxial connector is adapted to a flexible cable having an outer diameter of 3.6mm or less.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

The utility model discloses a radio frequency coaxial connector is through setting up the heliciform flange at the shell inner wall, and direct heliciform recess with the armor surface mutually supports and makes armor and shell relatively fixed, simple structure, can also guarantee the reliability of connecting, and can also prevent that the cable from receiving the extrusion and warping, improves the electrical property stability of cable subassembly in the use, effectively improves cable subassembly's shielding efficiency simultaneously, has improved the life of product.

The utility model discloses a radio frequency coaxial connector not only can be applied to national defense key engineering such as aviation, space flight, communication, boats and ships, weapon, but also wide application in technical field such as large-scale outdoor communication equipment and automatic control.

Drawings

Fig. 1 is a schematic half-sectional view of an rf coaxial connector adapted with an armor cable according to an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

Fig. 3 is a schematic half-sectional view of an rf coaxial connector adapted with an armor cable according to an embodiment of the present invention (connection assembly not shown);

Fig. 4 is a schematic cross-sectional view of a housing of an rf coaxial connector adapted with an armor cable according to an embodiment of the present invention;

In the figure: 1. a cable; 2. armor; 21. a helical groove; 3. a housing; 31. a helical flange; 32. a limiting part; 4. a bushing; 41. a bushing portion; 42. a second bushing part; 5. a connecting assembly; 51. connecting sleeves; 51a, a resisting part.

Detailed Description

The invention is further described below with reference to the drawings in the specification:

As shown in fig. 1-4, the radio frequency coaxial connector for connecting an armor cable is provided, an armor 2 is sleeved on a cable 1, the radio frequency coaxial connector comprises a connecting component 5 with one end detachably connected with an external component, a housing 3 connected with the other end of the connecting component 5, and a bushing 4 arranged between the connecting component 5 and the housing 3, one end of the cable 1 penetrates through the housing 3 and is fixedly connected with the bushing 4, the armor 2 is arranged between the housing 3 and the cable 1, the outer surface of the armor 2 is provided with a spiral groove 21 along the circumferential direction, the inner wall of the housing 3 is provided with a spiral flange 31 capable of matching with the spiral groove 21 of the armor 2 along the circumferential direction, the armor 2 is screwed into the housing 3, the armor 2 and the housing 3 are relatively fixed through the mutual matching of the spiral groove 21 and the spiral flange 31, and the connection of the armor 2 and the housing 3 is performed through the spiral structure between the armor 2, the reliability of connection is guaranteed, the armor 2 is prevented from loosening, and the reliability and the electrical property stability of the cable assembly are improved.

A stopper 32 for limiting the length of the armor 2 screwed into the housing 3 is provided on the inner wall of the housing 3.

In this example, the connecting assembly 5 includes a connecting sleeve 51 coaxially connected to the housing 3, the housing 3 is connected to the connecting sleeve 51 through a screw, specifically, an outer surface of one end of the housing 3 is provided with an external thread, and an inner wall of the connecting sleeve 51 is provided with an internal thread capable of being in threaded fit with the external thread of the housing 3.

The liner 4 includes a first liner portion 41 between the nipple 51 and the end of the casing 3 and a second liner portion 42 extending from the end of the first liner portion 41 toward the inside of the casing 3 in the longitudinal direction of the casing 3. A stopper portion 51a for stopping the bushing portion 41 between the connection sleeve 51 and the end portion of the housing 3 is provided on the inner wall of the connection sleeve 51.

In this example, the housing 3 is made of metal, and the armor 2 is a flexible armor.

The radio frequency coaxial connector is adapted to a flexible cable with an outer diameter of 3.6 mm.

The assembly process of the radio frequency coaxial connector comprises the following steps: the end of the cable 2 sequentially penetrates through the armor 2 and the shell 3 and then is welded with the bushing 4, the armor 2 is screwed into the shell 3 to enable the spiral groove 21 of the armor 2 to be matched with the spiral flange 31 of the shell 3, so that the armor 2 and the shell 3 are relatively fixed, then the shell 3 and the connecting sleeve 51 of the connecting assembly 5 are locked in a threaded mode, the second bushing part 42 of the bushing 4 is inserted into the shell 3, the first bushing part 41 of the bushing 4 is fixed between the connecting sleeve 51 and the shell 3, and then the end of the cable 2 is fixed with the shell 3 and the connecting assembly 5. The spiral structure of the inner wall of the shell 3 is connected with the spiral structure of the armor 2, so that the stability and reliability of the electrical property are realized. Meanwhile, the armor layer is connected outside the outer sheath of the cable, the whole cable assembly is protected, the cable is prevented from being extruded and distorted to deform, and the reliability and the electrical property stability of the cable assembly are improved.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A radio frequency coaxial connector connected with an armor cable in a matching mode, wherein the armor is sleeved on the cable, the radio frequency coaxial connector comprises a shell and a lining which is partially arranged in the shell, one end of the cable penetrates through the shell and is fixedly connected with the lining, the armor is located between the shell and the cable, a spiral groove is formed in the outer surface of the armor along the circumferential direction of the armor, and the radio frequency coaxial connector is characterized in that: the spiral flange matched with the spiral groove of the armor is arranged on the inner wall of the shell along the circumferential direction of the inner wall of the shell, and the armor and the shell are relatively fixed through mutual matching of the spiral groove and the spiral flange when the armor is screwed into the shell.

2. The armor cable mated radio frequency coaxial connector of claim 1, wherein: the inner wall of the shell is provided with a limiting part for limiting the length of the armor screwed into the shell.

3. The armor cable mated radio frequency coaxial connector of claim 1, wherein: the end of the cable is welded through the armor, the jacket and the liner.

4. The armor cable mated radio frequency coaxial connector of claim 1, wherein: the armor is flexible armor.

5. The armor cable mated radio frequency coaxial connector of claim 1, wherein: the shell is made of metal.

6. The armor cable-mated radio frequency coaxial connector according to any one of claims 1-5, wherein: the radio frequency coaxial connector further comprises a connecting assembly, one end of the connecting assembly is detachably connected with an external component, the other end of the connecting assembly is connected with the shell, and the bushing is located between the connecting assembly and the shell.

7. The armor cable-mated radio frequency coaxial connector of claim 6, wherein: the connecting assembly comprises a connecting sleeve coaxially connected with the shell, and the shell is connected with the connecting sleeve through threads.

8. The armor cable-mated radio frequency coaxial connector of claim 7, wherein: the outer surface of shell one end is equipped with the external screw thread, the inner wall of adapter sleeve be equipped with can with the external screw thread screw-thread fit's of shell internal thread.

9. The armor cable-mated radio frequency coaxial connector of claim 8, wherein: the inner wall of the connecting sleeve is also provided with a resisting part for resisting the lining between the connecting sleeve and the shell.

10. The armor cable-mated radio frequency coaxial connector of claim 6, wherein: the bushing comprises a first bushing part and a second bushing part, wherein the first bushing part is located between the connecting assembly and the outer shell, and the second bushing part extends from the end part of the first bushing part to the inside of the outer shell along the length direction of the outer shell.