CN218456207U

CN218456207U - Radio frequency coaxial connector

Info

Publication number: CN218456207U
Application number: CN202222328896.9U
Authority: CN
Inventors: 刘利; 王全友; 杨丽华
Original assignee: Beijing Bbef Science and Technology Co Ltd
Current assignee: Beijing Bbef Science and Technology Co Ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2023-02-07
Anticipated expiration: 2032-09-01

Abstract

The application relates to a radio frequency coaxial connector, which relates to the technical field of electrical connection elements and comprises an outer conductor and an inner conductor, wherein the inner conductor is detachably arranged in the outer conductor, the inner conductor and the outer conductor are coaxially arranged, and the inner conductor and the outer conductor are insulated and isolated from each other; the outer conductor includes installation pipe and the extension pipe of being connected with the relative perpendicular in installation pipe both ends, installation pipe and two extension pipe integrated into one piece. According to the radio frequency coaxial connector, the inner conductor is arranged in the outer conductor in an insulated mode, and the function of connecting different cables through the radio frequency coaxial connector can be achieved; meanwhile, the installation pipe and the two extension pipes are integrally formed, so that the structure of the outer conductor can be simplified, and the production cost of the outer conductor is reduced; the structure setting of outer conductor for two extension pipes cooperation inner conductor can connect two different cables, and the angle between two extension pipe axes is the angle of connection of different cables promptly.

Description

Radio frequency coaxial connector

Technical Field

The application relates to the technical field of electrical connection elements, in particular to a radio frequency coaxial connector.

Background

The rf coaxial connector is generally considered to be a component attached to a cable or mounted on an instrument as a component to which a transmission line is electrically connected or separated. Simply speaking, it mainly plays the role of a bridge; for realizing the connection between different cables, a radio frequency connector is often adopted for connection, but a general radio frequency connector is generally of a two-end straight-head structure and cannot realize the connection between different cables in opposite directions; at present, different cables are connected in opposite directions, particularly in a high-power radio frequency system, the cable generally has a larger turning radius and is usually connected by two L-shaped right-angle coaxial connectors. However, the two L-shaped right-angle coaxial connectors are connected, so that the size is larger and the number of parts is more; in order to reduce the connection volume, a U-shaped coaxial connector is often used.

A chinese patent with patent publication No. CN207474753U, discloses a U-shaped coaxial radio frequency connector, which includes: the shell is provided with an upper shell part and a lower shell part, the upper shell part is positioned above the lower shell part, and the rear part of the shell is provided with an assembling hole; the contact pin is of a U-shaped structure and is provided with an upper contact pin, a lower contact pin and a middle section transition part for connecting the upper contact pin and the lower contact pin, an upper insulator is supported on the upper contact pin, the upper insulator is pressed in the upper shell part, the upper contact pin is accommodated in the upper shell part and is separated from the upper shell part, a lower insulator is supported on the lower contact pin, the lower insulator is pressed in the lower shell part, the lower contact pin is accommodated in the lower shell part and is separated from the lower shell part; a middle insulator is supported on the middle section transition part; the outer conductor is electrically connected with the shell, the middle insulator is embedded on the outer conductor, and the outer conductor is separated from the middle section transition part; the cover plate is connected in the assembly hole.

In view of the above-mentioned related technologies, the U-shaped coaxial connector is designed to be detachable and detachable in order to ensure that the inner conductor can be smoothly installed in the connector, so the U-shaped coaxial connector has a complicated structure and a high cost.

SUMMERY OF THE UTILITY MODEL

The radio frequency coaxial connector is simple in structure, low in cost and capable of achieving multi-angle connection among different cables.

The radio frequency coaxial connector provided by the application adopts the following technical scheme:

a radio frequency coaxial connector comprises an outer conductor and an inner conductor, wherein the inner conductor is detachably arranged in the outer conductor, the inner conductor and the outer conductor are coaxially arranged, and the inner conductor and the outer conductor are insulated and isolated from each other; the outer conductor comprises a mounting pipe and extension pipes which are vertically connected with two ends of the mounting pipe relatively, and the mounting pipe and the extension pipes are integrally formed.

By adopting the technical scheme, the inner conductor is detachably arranged in the outer conductor, so that the inner conductor and the outer conductor can be detachably arranged, and the outer conductor and the inner conductor are conveniently arranged; the inner conductor is arranged along the axial direction of the outer conductor and is insulated and isolated from the outer conductor, so that the outer conductor and the inner conductor are insulated from each other, and the radio-frequency coaxial connector is not communicated with the inner conductor after being connected with a cable; the outer conductor comprises a mounting tube and two extension tubes which are positioned at two ends of the mounting tube, are perpendicular to the axis direction of the mounting tube and extend outwards to form the two extension tubes, so that the arrangement of the extension tubes can realize that two cables can be respectively fixed in two different extension tubes, the connection between the two cables can be met, and the angle between the axes of the two extension tubes is the required connection angle between the two cables; the installation pipe and the extension pipe are connected in an integrated forming mode, so that the outer conductor is simple in structure and low in cost.

Optionally, the installation pipe and the extension pipe are both hollow cylindrical structures, the installation pipe and the extension pipe are respectively provided with an installation hole along the axial direction thereof, and the installation hole in the extension pipe and the installation hole in the installation pipe are communicated with each other; the inner conductor is installed in the installation hole in the extension pipe and the installation hole in the installation pipe.

Through adopting above-mentioned technical scheme, all have the mounting hole in installation pipe and the extension pipe, the axis direction that the mounting hole edge extension pipe and installation pipe runs through extension pipe and installation pipe to the mounting hole intercommunication each other in extension pipe and the installation pipe, the setting up of mounting hole makes the inside of outer conductor link up completely, consequently provides the position of installation for the inner conductor.

Optionally, the inner conductor includes a terminal and a conducting rod, the conducting rod is located in the installation tube, both ends of the conducting rod are detachably connected with the terminal, and the two terminals are respectively arranged in the extension tubes at both ends of the installation tube.

Through adopting above-mentioned technical scheme, the inner conductor includes the setting of terminal and conducting rod, lets the conducting rod install in the installation pipe, and the conducting rod both ends all can be dismantled and be connected with the terminal, and two terminals set up respectively in the extension at installation pipe both ends, and the setting of inner conductor lets radio frequency coaxial connector can the connecting cable, realizes linking between the cable.

Optionally, an insulating support seat is disposed between the terminal and the conductive rod, and the terminal and the conductive rod are respectively located on two opposite surfaces of the insulating support seat.

Through adopting above-mentioned technical scheme, set up insulating supporting seat between terminal and conducting rod, can enough increase the stability of being connected between terminal and the conducting rod, can fix the inner conductor again in outer conductor, carry out insulating isolation to inner conductor and outer conductor.

Optionally, the axis of the terminal is arranged in line with the axis of the mounting hole in the extension pipe; the terminal is provided with an inserting hole, and the axis of the inserting hole is collinear with the axis of the terminal.

Through adopting above-mentioned technical scheme, the setting of spliced eye is convenient for fix the cable on the terminal to be convenient for cable grafting.

Optionally, a first fixing hole is formed in the terminal inwards along the axis direction, and the first fixing hole penetrates through the terminal and is communicated to the insertion hole; the two ends of the conducting rod are respectively provided with a second fixing hole; and fasteners for fixedly connecting the terminals and the conducting rods are inserted into the first fixing holes and the second fixing holes.

By adopting the technical scheme, the terminal is provided with the first fixing hole, the two ends of the conducting rod are provided with the second fixing holes, the first fixing hole and the second fixing hole are internally spliced with the fasteners for fixedly connecting the terminal and the conducting rod, and the first fixing hole and the second fixing hole are matched with the fasteners to realize the mutual connection and fixation of the terminal and the conducting rod.

Optionally, the both ends of conducting rod still are provided with and extend the platform, extend the platform perpendicular to the axis direction setting of conducting rod, just the axis of extending the platform with the axis collineation setting of mounting hole in the extension pipe, the second fixed orifices is seted up extend in the platform.

Through adopting above-mentioned technical scheme, all have the extension platform at the both ends lateral part of conducting rod, the setting of extending the platform can let terminal and conducting rod conflict each other, makes the shape of conducting rod the same with the outer conductor shape simultaneously, can prevent that the conducting rod from rolling in the installation pipe and being difficult to install the terminal on the conducting rod.

Optionally, a butting table protrudes outwards from a side surface of the terminal, where the terminal and the conducting rod are butted against each other, and the first fixing hole penetrates through the butting table; the insulating support seat is provided with a connecting hole along the axis direction, the connecting hole penetrates through the insulating support seat, and the abutting table penetrates through the connecting hole and abuts against the conducting rod; the outer peripheral face of the insulating supporting seat is abutted to the inner side wall of the extension pipe, and the hole wall of the connecting hole is abutted to the outer peripheral face of the abutting table.

By adopting the technical scheme, the abutting table protrudes outwards from the side face, abutting against the conducting rod, of the terminal, and the first fixing hole penetrates through the abutting table, so that the connection between the terminal and the conducting rod cannot be influenced by the arrangement of the abutting table; the insulating support seat between the terminal and the conducting rod is provided with a connecting hole along the axis direction, the connecting hole penetrates through the support seat, the abutting table penetrates through the connecting hole and is abutted against the conducting rod, and the connecting hole enables the abutting table to be directly abutted against the conducting rod; the mutual butt of inside wall of insulating supporting seat outer peripheral face and extension tube, the pore wall of connecting hole and the mutual butt of outer peripheral face of butt platform, consequently insulating support has realized the effect of fixing the inner conductor in outer conductor, all supports with terminal and conducting rod and fixes in outer conductor, also separates outer conductor and inner conductor simultaneously, has insulating effect to outer conductor and inner conductor.

Optionally, a first mounting groove and a second mounting groove are respectively formed in the two side surfaces of the insulating support along the axis direction, one side of the terminal is clamped in the first mounting groove, and one side of the conducting rod is clamped in the second mounting groove; a plurality of through holes are formed in the insulating supporting seat, and the through holes penetrate through the insulating supporting seat along the axis direction of the insulating supporting seat.

By adopting the technical scheme, the first fixing groove and the second fixing groove are formed in the insulating support seat, one side of the terminal is clamped into the first mounting groove, and one side of the conducting rod is clamped into the second mounting groove, so that the connection between the terminal and the conducting rod is enhanced, and the supporting effect of the insulating support seat on the inner conductor is ensured; set up the through-hole on insulating supporting seat, consequently when the installation insulating seat, the through-hole can provide elastic deformation's space for insulating supporting seat, and then the installation of the insulating supporting seat of being convenient for.

Optionally, the axes of the two extension pipes are parallel to each other, and the two extension pipes are connected to the same side of the installation pipe; or the axes of the two extension pipes are parallel to each other and the two extension pipes are respectively connected to two opposite sides of the installation pipe; or an included angle of 0-180 degrees is formed between the axes of the two extension pipes, and the two extension pipes are respectively connected to the two sides of the installation pipe.

By adopting the technical scheme, the axes of the two extension pipes are parallel to each other, and the two extension pipes are connected to the same side of the installation pipe, so that the radio frequency coaxial connector has a U-shaped structure and can realize the connection of different cables in opposite directions; the axes of the two extension pipes are parallel to each other, and the two extension pipes are respectively connected to two opposite sides of the installation pipe, so that the radio frequency coaxial connector has a Z-shaped structure and can realize the connection of different cables in the same direction; an included angle of 0-180 degrees is formed between the axes of the two extension pipes, and the two extension pipes are respectively connected to the two sides of the installation pipe, so that the radio frequency coaxial connector can realize the connection of any angle between the two cables.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the installation pipe and the two extension pipes are integrally formed, so that the structure of the outer conductor can be simplified, and the production cost of the outer conductor can be reduced.

2. The axes of the two extension tubes on the outer conductor are parallel to each other, and the two extension tubes are connected to the same side of the installation tube; or the axes of the two extension pipes are parallel to each other and the two extension pipes are respectively connected to two opposite sides of the installation pipe; or an included angle between 0-180 degrees is formed between the axes of the two extension pipes, and the two extension pipes are respectively connected to the two sides of the installation pipe; therefore, the corresponding radio frequency coaxial connector can be selected according to the requirement of the connection angle between different cables, and then multi-angle connection between different cables can be realized.

3. The setting of insulating supporting seat can enough fix outer conductor and inner conductor, can be with outer conductor and inner conductor insulation isolation again.

Drawings

Fig. 1 is a schematic view of the overall structure of the radio frequency coaxial connector in embodiment 1 of the present application.

Fig. 2 is a schematic cross-sectional view of an rf coaxial connector in embodiment 1 of the present application.

Fig. 3 is a schematic cross-sectional view of an insulating support seat in embodiment 1 of the present application.

Fig. 4 is a schematic cross-sectional structural view of the rf coaxial connector in embodiment 2 of the present application.

Fig. 5 is a schematic view of the overall structure of the rf coaxial connector in embodiment 3 of the present application.

Fig. 6 is a schematic view of the entire structure of the inner conductor in embodiment 3 of the present application.

In the figure, 1, an outer conductor; 11. installing a pipe; 12. an extension pipe; 13. mounting holes;

2. an inner conductor; 21. a terminal; 211. inserting holes; 212. a first fixing hole; 213. a butting table; 22. a conductive rod; 221. an extension stage; 222. a second fixing hole; 23. a fastener;

3. insulating a supporting seat; 31. connecting holes; 32. a first mounting groove; 33. a second mounting groove; 34. and a through hole.

Detailed Description

The present application is described in further detail below with reference to fig. 1-6.

Example 1:

a radio frequency coaxial connector, referring to fig. 1, comprises an outer conductor 1 and an inner conductor 2, wherein the inner conductor 2 is inserted into the outer conductor 1, so that the inner conductor 2 and the outer conductor 1 can be detachably mounted.

Referring to fig. 1 and 2, the outer conductor 1 includes a mounting tube 11 and two extension tubes 12, the two extension tubes 12 are located on the same side of the mounting tube 11, the two extension tubes 12 are formed by extending two ends of the mounting tube 11 outward in the same direction, and the axes of the two extension tubes 12 are perpendicular to the axis of the mounting tube 11, so that the mounting tube 11 and the two extension tubes 12 form a U shape, and connection between different cables facing opposite directions can be achieved.

Referring to fig. 1 and 2, mounting holes 13 are respectively opened in the mounting pipe 11 and the two extension pipes 12, the mounting holes 13 penetrate through the mounting pipe 11 and the two extension pipes 12 along the axial direction of the mounting pipe 11 and the two extension pipes 12, and the mounting holes 13 in the mounting pipe 11 and the 2 extension pipes 12 are communicated with each other, so that a space for mounting the inner conductor 2 can be provided.

Referring to fig. 1 and 2, the installation pipe 11 and the two extension pipes 12 are integrally formed, thereby making the structure of the outer conductor 1 simple and the production cost low.

Referring to fig. 1 and 2, the inner conductor 2 includes a conductive rod 22 and two terminals 21, the conductive rod 22 is installed in the installation tube 11 in parallel to the axial direction of the installation tube 11, two ends of the conductive rod 22 are respectively fixed with one terminal 21, and the axial lines of the axial extension tubes 12 of the terminals 21 are arranged in a collinear manner, so that the connection of different cables can be realized by respectively fixing two cables on the two terminals 21.

Referring to fig. 1 and 2, the terminal 21 is provided with a plugging hole 211 inwards on a side surface facing the outside of the outer conductor 1, and an axis of the plugging hole 211 is collinear with an axis of the corresponding terminal 21, so that a lead in a cable can be fixed through the plugging hole 211, and the installation of the cable is facilitated.

Referring to fig. 1 and 2, a first fixing hole 212 is formed in the terminal 21 along an axial direction, and is a threaded hole, the first fixing hole 212 penetrates through the terminal 21 and is communicated with the insertion hole 211, and the fastener 23 can be inserted into the first fixing hole 212.

Referring to fig. 1 and 2, extension stages 221 are protruded outwards in the same direction at both ends of the same side of the conductive rod 22, the axes of the extension stages 221 are perpendicular to the axis of the conductive rod 22, the extension stages 221 are installed in the corresponding extension tubes 12, and the axes of the extension stages 221 and the axes of the extension tubes 12 are arranged in a collinear manner, so that the conductive rod 22 and the extension stages 221 form a U shape and are adapted to the shape of the outer conductor 1, thereby enabling connection between different cables in opposite directions.

Referring to fig. 1 and 2, the extension stage 221 is provided with a second fixing hole 222 along the axial direction of the extension stage 221, and the fasteners 23 are screw holes, inserted into the first fixing hole 212 and the second fixing hole 222, and the fasteners 23 are bolts, so that the terminals 21 can be fixed to the corresponding extension stage 221.

Referring to fig. 2 and 3, an insulating support 3 is disposed between the terminal 21 and the extension stage 221, the insulating support 3 is a cylinder, and the outer side of the insulating support 3 is attached to the inner side wall of the extension tube 12 and contacts with the inner side wall of the extension tube 12, so that the insulating support 3 can be clamped in the extension tube 12.

Referring to fig. 2 and 3, on the side of the terminal 21 facing the extending platform 221, the abutting platform 213 extends outwards in the direction of the extending platform 221, the abutting platform 213 abuts against the side of the extending platform 221, and the first fixing hole 212 penetrates through the abutting platform 213, so that when the terminal 21 and the extending platform 221 are connected and fixed with each other, the abutting platform 213 abuts against the extending platform 221, and the abutting platform 213 provides a mounting position for the insulating support base 3.

Referring to fig. 2 and 3, a connection hole 31 is formed in the middle of the extension pipe 12 along the axis of the terminal 21, the connection hole 31 penetrates through the support base, the abutting table 213 penetrates through the connection hole 31 and abuts against the extension table 221, and the outer peripheral surface of the abutting table 213 and the inner wall of the connection hole 31 are attached to each other and abut against each other, so that the terminal 21 and the conductive rod 22 can be supported at the mutually fixed positions, the connection stability between the outer conductor 1 and the inner conductor 2 is improved, and the outer conductor 1 and the inner conductor 2 are spaced from each other and have the function of insulation and isolation.

Referring to fig. 2 and 3, the insulating support base 3 is provided with a first mounting groove 32 and a second mounting groove 33 inwardly formed along both side surfaces in the height direction, one side of the terminal 21 is inserted into the first mounting groove 32, and one side of the extension block 221 is inserted into the second mounting groove 33, so that the stability of the insulating support base 3 supporting the outer conductor 1 and the inner conductor 2 can be increased, and the stability of the interconnection of the terminal 21 and the conductive rod 22 can also be increased.

Referring to fig. 2 and 3, the insulating support base 3 is centered on the axis of the insulating support base 3, and the insulating support base 3 is circumferentially provided with a plurality of through holes 34, so that when the insulating support base 3 is clamped into the extension tube 12, a space for elastic deformation is provided, which is convenient for installation between the insulating support base 3 and the extension tube 12 and between the insulating support base 3 and the terminal 21.

The implementation principle of the embodiment of the application is as follows: the conductive rod 22 is installed in the outer conductor 1, then the second fixing groove on the insulating support seat 3 and the extension table 221 on the conductive rod 22 are clamped with each other, so that the conductive rod 22 is fixed, then one side of the terminal 21 is clamped into the first fixing groove, then the terminal 21 is screwed into the first fixing hole 212 and the second fixing hole 222 through bolts, so that the terminal 21 and the conductive rod 22 are fixed, and the whole radio frequency coaxial connector is installed.

Example 2:

referring to fig. 4, the present embodiment is different from embodiment 1 in that: the two extension tubes 12 are located on two opposite sides of the installation tube 11, and the two extension tubes 12 are formed by extending two ends of the installation tube 11 outwards in opposite directions, and the axes of the two extension tubes 12 are parallel to each other and perpendicular to the axis of the installation tube 11, so that the outer conductor 1 forms a Z shape, and the connection of cables arranged in the same direction can be realized.

Referring to fig. 4, extension bases 221 are protruded outward in opposite directions at both ends of the conductive rod 22, axes of the extension bases 221 are parallel to each other and perpendicular to the axis of the conductive rod 22, the extension bases 221 are installed in the corresponding extension pipes 12, and the axes of the extension bases 221 and the axes of the corresponding extension pipes 12 are arranged in a collinear manner, so that the inner conductor 2 is Z-shaped and can be installed in the outer conductor 1 to be suitable for the shape of the outer conductor 1, and thus, the inner conductor can be installed in the outer conductor 1, and further, the cables arranged in the same direction can be connected.

Example 3:

referring to fig. 5, the present embodiment is different from embodiment 1 in that: the two extension tubes 12 are formed by extending two ends of the two sides of the installation tube 11 outwards, the axes of the two extension tubes 12 are perpendicular to the axis of the installation tube 11, the axes of the two extension tubes 12 are different in surface and have included angles of 0-180 degrees, and therefore the cables can be connected in a multi-angle mode through the shape arrangement of the outer conductor 1.

Referring to fig. 5 and 6, extension stages 221 are protruded outwards from both ends of the conductive rod 22, the axes of the extension stages 221 are perpendicular to the axis of the conductive rod 22, the extension stages 221 are installed in the corresponding extension tubes 12, and the axes of the extension stages 221 and the axes of the corresponding extension tubes 12 are arranged in a collinear manner, so that the inner conductor 2 has the same shape as the outer conductor 1, so that the inner conductor 2 can be installed in the outer conductor 1, and the connection of two cables requiring an included angle of 0-180 degrees can be realized.

The embodiments of the present disclosure are all preferred embodiments of the present disclosure, and the protection scope of the present disclosure is not limited thereby, wherein like parts are designated by like reference numerals. Therefore, the method comprises the following steps: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A radio frequency coaxial connector comprises an outer conductor (1) and an inner conductor (2), and is characterized in that the inner conductor (2) is detachably mounted in the outer conductor (1), the inner conductor (2) and the outer conductor (1) are coaxially arranged, and the inner conductor (2) and the outer conductor (1) are insulated and isolated from each other;

the outer conductor (1) comprises a mounting tube (11) and extension tubes (12) which are vertically connected with two ends of the mounting tube (11) relatively, and the mounting tube (11) and the extension tubes (12) are integrally formed.

2. The radio frequency coaxial connector according to claim 1, wherein the mounting tube (11) and the extension tube (12) are both hollow cylindrical structures, the mounting tube (11) and the extension tube (12) are respectively provided with a mounting hole (13) along an axial direction thereof, and the mounting hole (13) in the extension tube (12) and the mounting hole (13) in the mounting tube (11) are communicated with each other;

the inner conductor (2) is mounted in a mounting hole (13) in the extension pipe (12) and a mounting hole (13) in the mounting pipe (11).

3. A radio frequency coaxial connector according to claim 2, wherein the inner conductor (2) comprises a terminal (21) and a conductive rod (22), the conductive rod (22) is located in the mounting tube (11), both ends of the conductive rod (22) are detachably connected with the terminal (21), and the two terminals (21) are respectively arranged in the extension tubes (12) at both ends of the mounting tube (11).

4. A radio frequency coaxial connector according to claim 3, wherein an insulating support (3) is disposed between the terminal (21) and the conductive rod (22), and the terminal (21) and the conductive rod (22) are respectively disposed on two opposite surfaces of the insulating support (3).

5. A radio frequency coaxial connector according to claim 4, wherein the axis of the terminal (21) is arranged in line with the axis of the mounting hole (13) in the extension pipe (12); the terminal (21) is provided with an inserting hole (211), and the axis of the inserting hole (211) is collinear with the axis of the terminal (21).

6. The radio frequency coaxial connector according to claim 5, wherein the terminal (21) is provided with a first fixing hole (212) inwardly along an axial direction, and the first fixing hole (212) penetrates through the terminal (21) and is communicated with the insertion hole (211);

the two ends of the conducting rod (22) are respectively provided with a second fixing hole (222);

and fasteners (23) for fixedly connecting the terminals (21) and the conducting rods (22) are inserted into the first fixing holes (212) and the second fixing holes (222).

7. The radio frequency coaxial connector according to claim 6, wherein the two ends of the conductive rod (22) are further provided with extension stages (221), the extension stages (221) are arranged perpendicular to the axial direction of the conductive rod (22), the axis of the extension stages (221) is arranged in line with the axis of the mounting hole (13) in the extension tube (12), and the second fixing hole (222) is formed in the extension stages (221).

8. The rf coaxial connector of claim 6, wherein the abutting portion (213) protrudes outwardly from the side where the terminal (21) and the conductive rod (22) abut against each other, and the first fixing hole (212) penetrates through the abutting portion (213);

the insulating support seat (3) is provided with a connecting hole (31) along the axis direction, the connecting hole (31) penetrates through the insulating support seat (3), and the butting table (213) penetrates through the connecting hole (31) and is butted with the conducting rod (22);

the outer peripheral surface of the insulating supporting seat (3) is abutted to the inner side wall of the extension pipe (12), and the hole wall of the connecting hole (31) is abutted to the outer peripheral surface of the abutting table (213).

9. The RF coaxial connector as claimed in claim 4, wherein the insulating support base (3) has a first mounting groove (32) and a second mounting groove (33) formed therein on opposite sides along the axial direction, one side of the terminal (21) is engaged with the first mounting groove (32), and one side of the conductive rod (22) is engaged with the second mounting groove (33);

a plurality of through holes (34) are formed in the insulating supporting seat (3), and the through holes (34) penetrate through the insulating supporting seat (3) along the axis direction of the insulating supporting seat (3).

10. A radio frequency coaxial connector according to any one of claims 3, 4 or 5, wherein the axes of the two extension pipes (12) are parallel to each other and the two extension pipes (12) are connected to the same side of the mounting pipe (11);

or the axes of the two extension pipes (12) are parallel to each other, and the two extension pipes (12) are respectively connected to two opposite sides of the mounting pipe (11);

or an included angle of 0-180 degrees is formed between the axes of the two extension pipes (12), and the two extension pipes (12) are respectively connected to two sides of the installation pipe (11).