CN208257055U - Radio frequency (RF) coaxial connector and its plug - Google Patents

Abstract

The utility model relates to a radio frequency coaxial connector and its plug. The plug includes a plug body, and the two ends of the plug body are respectively provided with a first cylinder body and a second cylinder body. The second cylinder body is provided with a plug connection part; and a plug conductor, the plug conductor is arranged in the inner cavity of the plug and is insulated from the plug body, and the two ends of the plug conductor are respectively provided with a first butt joint part and a second butt joint part, and the first butt joint The first connecting portion and the first connecting portion form a first connecting device, and the second mating portion and the plug connecting portion form a plug connecting device for docking with a socket. Through the setting of the first connection device and the plug connection device, when wiring is required, the interface of the first transmission line can be docked with the first connection device, and then the plug connection device can be connected with the socket connection device of the socket to realize the first transmission line The connection with the socket or the second transmission line on the socket is convenient and fast, without stripping and other operations.

Description

RF coaxial connector and its plug

technical field

The utility model relates to the technical field of radio frequency connectors, in particular to a radio frequency coaxial connector and a plug thereof.

Background technique

The RF coaxial connector is a component that is attached to the cable or installed on the instrument, used for the electrical connection or separation of the transmission line, and plays the role of a bridge in the electrical connection.

At present, when the end of the RF coaxial connector on the market is connected to the transmission line, it is usually necessary to strip the connected end of the transmission line, and then weld or crimp the end of the stripped transmission line to the radio frequency. The end of the coaxial connector is connected, and the operation is cumbersome. If the RF coaxial connector fails and needs to be replaced, it needs to be stripped and removed again. become shorter.

Contents of the invention

Based on this, it is necessary to provide a radio frequency coaxial connector and its plug to solve the problem of inconvenient installation when the radio frequency coaxial connector is connected to a transmission line.

Its technical scheme is as follows:

On the one hand, a plug of a radio frequency coaxial connector is provided, including a plug body, the plug body is provided with a plug inner cavity arranged along its length direction, and the two ends of the plug body are respectively provided with a first cylinder and a second cylinder , the inner cavity of the plug communicates with the inner cavity of the first cylindrical body and the inner cavity of the second cylindrical body, the first cylindrical body is provided with a first connecting portion, and the second cylindrical body is provided with a plug connecting portion; and a plug conductor, the plug conductor is arranged along the plug The length direction of the body is set in the inner cavity of the plug and is insulated from the plug body. The two ends of the plug conductor are respectively provided with a first butt joint and a second joint. A first connection device for docking with the first transmission line is formed, and the second docking part is arranged on the same side as the plug connection part and forms a plug connection device for docking with the socket.

The plug of the above-mentioned radio frequency coaxial connector, through the setting of the first connecting device and the plug connecting device, when wiring is required, the interface of the first transmission line can be docked with the first connecting device, and then the plug connecting device and the socket of the socket The connection of the connecting device can realize the connection between the first transmission line and the socket or the second transmission line on the socket, the wiring is convenient and fast, and operations such as stripping are not required.

The technical scheme is further described below:

In one embodiment, a first insulating cylinder is further provided in the inner cavity of the plug, and the inner wall of the first insulating cylinder is mated with the outer wall of the plug conductor, and the outer wall of the first insulating barrel is mated with the inner wall of the plug inner cavity. The arrangement of the insulating cylinder realizes the insulation installation of the plug conductor and the plug body, the structure is simple, and the installation efficiency is high.

In one of the embodiments, the inner cavity of the first cylinder is provided with a second insulating cylinder, the second insulating cylinder is sleeved on the outer wall of the plug conductor, and the middle part of the plug conductor is also provided with a first shoulder, and the first insulating cylinder The barrel and the second insulating barrel are respectively arranged on two sides of the first shaft shoulder. The co-arrangement of the first insulating cylinder and the second insulating cylinder not only realizes the technical effect of insulation, but also realizes the functions of fixing and limiting the plug conductor.

In one of the embodiments, the second cylinder is further provided with a limiting part for cooperating with the socket to limit the position. The limiting part is used to limit the mating position of the plug and the socket, so as to achieve a more precise installation technical effect.

In one of the embodiments, the limiting part includes an annular groove, and the annular groove is arranged around the axis of the second cylinder and is arranged on the outer wall of the second cylinder; or the limiting part includes a strip-shaped through groove, and the strip-shaped through-groove There is at least one strip-shaped through groove arranged along the length direction of the second cylinder and on the cylinder wall of the second cylinder to form a strip-shaped gap. Both the annular groove and the strip-shaped through-groove play the role of limiting. If the annular groove and the strip-shaped through-groove are installed at the same time, it will not only play the role of limiting the position, but also make the second cylinder form a split groove structure, and the installation is more convenient. It is convenient, and can also play a good effect of limiting technology.

In one of the embodiments, the plug body is also provided with a fixed shoulder, and the outer wall of the first cylinder or the second cylinder or the outer wall of the plug body on the side of the fixed shoulder is provided with a fixing thread, and also includes a fixing nut, The fixing nut cooperates with the fixing thread and fixes the plug. The plug can be fixed on a structure such as a fixed plate or a test table. Through the setting of the fixed nut and the fixed shoulder, the fixed shoulder and the fixed nut are respectively located on both sides of the fixed plate or the test table. The plug is fixed.

In one embodiment, a sealing ring is further included, and a sealing groove is provided on one side of the fixed shoulder, and the sealing ring is sleeved in the sealing groove and cooperates with the fixing nut to fix the plug. The sealing groove is used to install the sealing ring. The cooperation of the sealing ring and the fixing nut can not only better tighten the plug, but also prevent external water droplets or dust from entering the fixed part, and improve the effect of fixing technology.

On the other hand, a radio frequency coaxial connector is also provided, including the plug of the radio frequency coaxial connector described in any one of the above technical solutions; and a socket, the two ends of the socket are respectively provided with a socket connection device and a second device, the socket connection device is provided correspondingly to the plug connection device, the second connection device is used for docking connection with the second transmission line, the socket connection device is docked with the plug connection device, connects the plug to the socket, and connects the first transmission line to the second transmission line .

The above radio frequency coaxial connector, through the setting of the plug and the socket, the plug is provided with a plug connection device and the first connection device, and the socket is provided with a socket connection device and a second connection device, when it is necessary to connect the first transmission line and the second transmission line, Use the first connection device to connect the first transmission line, use the second connection device to connect the second transmission line, and then use the plug connection device and the socket connection device to connect the plug and the socket, thereby realizing the quick connection of the first transmission line and the second transmission line , simple structure, convenient operation, if the RF coaxial connector fails, you can directly replace the corresponding plug and socket, no stripping operation is required for wiring and replacement, which greatly improves the wiring efficiency.

The technical scheme is further described below:

In one of the embodiments, the socket includes a socket body and a socket conductor; the socket body is provided with a socket cavity arranged along its length direction, and the two ends of the socket body are respectively provided with a third cylinder and a fourth cylinder, and the socket cavity The inner cavity of the third cylinder is connected with the inner cavity of the fourth cylinder, the third cylinder is provided with a socket connection part connected with the plug connection part, and the fourth cylinder is provided with a second connection part; the socket conductor is arranged along the socket body The length direction is set in the inner cavity of the socket and is insulated from the socket body. The two ends of the socket conductor are respectively provided with a third butt joint and a fourth butt joint. The third butt joint and the socket connection part are set on the same side and formed for In the socket connecting device docked with the plug connecting device, the fourth docking part is arranged on the same side as the second connecting part and forms a second connecting device for docking with the second transmission line, and the second docking part is mated with the third docking part. Both the socket connection part and the second connection part of the socket are arranged corresponding to the plug, so as to facilitate the docking connection between the plug and the socket and the docking connection between the socket and the second transmission line, and improve wiring efficiency.

In one embodiment, the butt end of the second docking portion is located in the inner cavity of the second cylinder, and the butt end of the third docking portion is located in the inner cavity of the third cylinder. Compared with the setting where the butt end of the second docking part protrudes out of the inner cavity of the second cylinder or the third docking part protrudes out of the inner cavity of the third cylinder, this application can make the contact parts of the plug conductor and the socket conductor be located at the same time when the plug conductor and the socket conductor are docked. In the second cylinder and the third cylinder, the force stability of the docking part is improved, the service life of the radio frequency coaxial connector is extended, and the production cost is reduced.

Description of drawings

Figure 1 is an exploded view of the overall structure of the RF coaxial connector;

Figure 2 is a docking diagram of a plug and a socket of a radio frequency coaxial connector;

Fig. 3 is a schematic diagram of the A-A section structure in Fig. 2 .

100. Plug body, 110. First cylinder, 111. First connecting part, 120. Second cylinder, 121. Annular groove, 122. Strip-shaped through groove, 130. Fixed shoulder, 140. Fixed nut, 141 , fixed thread, 150, sealing ring, 200, plug conductor, 210, first shoulder, 310, first insulating cylinder, 320, second insulating cylinder, 400, socket body, 410, third cylinder, 420, the first Four barrels, 421, second connection part, 500, socket conductor, 600, socket insulation cylinder.

Detailed ways

Embodiment of the utility model is described in detail below in conjunction with accompanying drawing:

It should be noted that when an element is “fixed” to another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only and are not intended to represent the only embodiments.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of this invention. The terminology used herein in the description of the utility model is only for the purpose of describing specific implementations, and is not intended to limit the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in Figures 1 to 3, the utility model provides a plug for a radio frequency coaxial connector, including a plug body 100, the plug body 100 is provided with a plug inner cavity arranged along its length direction, the plug body 100 Both ends are respectively provided with a first cylinder 110 and a second cylinder 120, the inner cavity of the plug communicates with the inner cavity of the first cylinder 110 and the inner cavity of the second cylinder 120, and the first cylinder 110 is provided with a first connecting part 111, the second cylindrical body 120 is provided with a plug connection part; and a plug conductor 200, the plug conductor 200 is arranged in the inner cavity of the plug along the length direction of the plug body 100, and is insulated from the plug body 100, and the two ends of the plug conductor 200 are respectively A first docking part and a second docking part are provided. The first docking part is arranged on the same side as the first connecting part 111 and forms a first connecting device for docking with the first transmission line. The second docking part is the same as the plug connecting part. The side is provided and forms a plug connection device for docking with the socket.

Through the setting of the first connection device and the plug connection device, when wiring is required, the interface of the first transmission line can be docked with the first connection device, and then the plug connection device can be connected with the socket connection device of the socket to realize the first transmission line The connection with the socket or the second transmission line on the socket is convenient and fast, without stripping and other operations.

At the same time, since there is no need for operations such as stripping, even if problems such as failures occur, it is only necessary to remove and replace the corresponding part. Also, there is no need to strip the wires, as long as the corresponding matching connections are required, which improves the installation efficiency.

Furthermore, the plug body 100, the first cylinder body 110 and the second cylinder body 120 are integrated, which is convenient for processing and manufacturing.

As shown in Figure 3, the radius of the outer wall of the first cylinder 110 is smaller than the radius of the outer wall of the second cylinder 120, the radius of the inner wall of the first cylinder 110 is also smaller than the radius of the inner wall of the second cylinder 120, and the radius of the inner wall of the plug cavity is the same as that of the second cylinder 120. The radius of the inner wall of the first cylinder 110 remains consistent.

In the embodiment shown in Figure 3, a first insulating cylinder 310 is also provided in the inner cavity of the plug, and the inner wall of the first insulating cylinder 310 is connected with the outer wall of the plug conductor 200, and the outer wall of the first insulating cylinder 310 is connected with the inner wall of the plug inner cavity. The inner wall fits the connection. The arrangement of the insulating cylinder realizes the insulation installation of the plug conductor 200 and the plug body 100 , the structure is simple, and the installation efficiency is high.

The first insulating cylinder 310 is pressed into the inner cavity of the plug by crimping, so that the outer wall of the first insulating cylinder 310 is closely matched with the inner wall of the inner cavity of the plug, and the outer wall of the plug conductor 200 is closely matched with the inner wall of the first insulating cylinder 310. The plug conductor 200 is fixed and insulated from the plug body 100 .

In the embodiment shown in FIG. 3 , a second insulating cylinder 320 is also provided in the inner cavity of the first cylindrical body 110, and the second insulating cylinder 320 is sleeved on the outer wall of the plug conductor 200, and the middle part of the plug conductor 200 is also provided with a second insulating cylinder 320. A shaft shoulder 210 , the first insulating cylinder 310 and the second insulating cylinder 320 are respectively disposed on two sides of the first shaft shoulder 210 . The co-arrangement of the first insulating cylinder 310 and the second insulating cylinder 320 not only realizes the technical effect of insulation, but also realizes the function of fixing and limiting the plug conductor 200 .

In addition, both the first insulating cylinder 310 and the second insulating cylinder 320 are provided with limiting grooves corresponding to the first shoulder 210 for accurate installation and positioning.

On the basis of any one of the above embodiments, the second cylindrical body 120 is further provided with a limiting portion for cooperating with the socket to limit the position. The limiting part is used to limit the mating position of the plug and the socket, so as to achieve a more precise installation technical effect.

When the plug and the socket are matched and fixed, the matching and positioning of the predetermined positions of the two are realized through the limiting part, so that the installation is more accurate.

In the embodiment shown in Figure 2 and Figure 3, the limiting part includes an annular groove 121, and the annular groove 121 is arranged around the axis of the second cylinder 120 and is arranged on the outer wall of the second cylinder 120; or the limiting part includes There is at least one strip-shaped through-slot 122 . The strip-shaped through-slot 122 is arranged along the length direction of the second cylinder 120 and is arranged on the cylinder wall of the second cylinder 120 to form a strip-shaped gap. Both the annular groove 121 and the bar-shaped through-groove 122 play a position-limiting role. If the annular groove 121 and the strip-shaped through-groove 122 are set at the same time, the second cylindrical body 120 will also form a splitting groove while playing a position-limiting role. structure, the installation is more convenient, and it can also play a good limit technical effect.

As shown in Figure 2 and Figure 3, the cylinder wall of the second cylinder 120 is provided with an annular groove 121, which is used for engaging with the socket, and the cylinder wall of the second cylinder 120 is also provided with a strip-shaped through groove 122, the strip A plurality of shaped through grooves 122 are arranged along the length direction of the second cylinder body 120 and arranged axially symmetrically along the axis of the second cylinder body 120 , so that the plug connection portion of the second cylinder body 120 forms a split groove structure. In this way, the split groove structure makes it easier for the plug connection part of the second cylinder 120 to enter the inner cavity of the third cylinder 410 of the socket, and the annular groove 121 is further engaged and fixed with the inner wall of the third cylinder 410, thereby realizing The docking operation is simple and convenient, and the clamping technology is effective.

1 to 3, in one embodiment, the plug body 100 is also provided with a fixed shoulder 130, and the outer wall of the first cylinder 110 or the outer wall of the second cylinder 120 is located on the fixed shoulder. The outer wall of the plug body 100 on one side of 130 is provided with a fixing thread 141, and also includes a fixing nut 140, and the fixing nut 140 cooperates with the fixing thread 141 and fixes the plug. The plug can be fixed on structures such as a fixed plate or a test table, and through the setting of the fixed nut 140 and the fixed shoulder 130, the fixed shoulder 130 and the fixed nut 140 are respectively located on both sides of the fixed plate or the test table, and are fixed by the fixed nut 140. The threaded fit of the bolt securely sets the plug.

Through the fixed shoulder 130, the fixed shoulder 130 cooperates with the fixed plate or the experimental table to limit the position, and the fixed nut 140 is used to make the fixed nut 140 and the fixed shoulder 130 respectively located on both sides of the fixed plate or the experimental table and the fixed nut 140 is tightened. Thereby the plug is fixed on the fixed plate or the experimental table.

Of course, according to needs, the socket can also be fixed on the fixed plate or the experimental table, and it is not limited to only the plug fixing arrangement.

The embodiment shown in Figure 2 and Figure 3 also includes a sealing ring 150, and a sealing groove is provided on one side of the fixed shoulder 130, and the sealing ring 150 is sleeved in the sealing groove and cooperates with the fixing nut 140 to fix the plug . The sealing groove is used for installing the sealing ring 150, and the cooperation of the sealing ring 150 and the fixing nut 140 can not only better fasten the plug, but also prevent external water droplets or dust from entering the fixed part, and improve the fixing technical effect. The sealing ring 150 and the fixed shoulder 130 are located on one side, and the nut is located on the other side, so that the arrangement is fixed.

The embodiment shown in Figure 1 to Figure 3, the utility model also provides a radio frequency coaxial connector, including the plug of the radio frequency coaxial connector described in any one of the above technical solutions; and socket, the two ends of the socket A socket connection device and a second connection device are provided respectively, the socket connection device and the plug connection device are arranged correspondingly, the second connection device is used for docking connection with the second transmission line, the socket connection device is docked with the plug connection device, and the plug and the socket are connected, And connect the first transmission line and the second transmission line.

Through the setting of the plug and the socket, the plug is provided with a plug connection device and a first connection device, and the socket is provided with a socket connection device and a second connection device. When the first transmission line and the second transmission line need to be connected, the first connection device is used to connect the second One transmission line is connected, the second transmission line is connected by the second connection device, and then the plug and the socket are connected by the plug connection device and the socket connection device, thereby realizing the quick connection of the first transmission line and the second transmission line, the structure is simple, and the operation is convenient, If the radio frequency coaxial connector fails, the corresponding plug and socket can be replaced directly, and no wire stripping operation is required for wiring and replacement, which greatly improves the wiring efficiency.

In the embodiment shown in Figures 1 to 3, the socket includes a socket body 400 and a socket conductor 500; the socket body 400 is provided with a socket inner cavity arranged along its length direction, and the two ends of the socket body 400 are respectively provided with a third cylindrical body 410 and the fourth cylinder 420, the cavity of the socket communicates with the cavity of the third cylinder 410 and the cavity of the fourth cylinder 420, the third cylinder 410 is provided with a socket connection part connected with the plug connection part, the fourth cylinder The body 420 is provided with a second connecting portion 421; the socket conductor 500 is arranged in the socket cavity along the length direction of the socket body 400, and is insulated from the socket body 400, and the two ends of the socket conductor 500 are respectively provided with a third docking portion and a Four docking parts, the third docking part is set on the same side as the socket connecting part, and forms a socket connecting device for docking with the plug connecting device, and the fourth docking part is set on the same side as the second connecting part 421, and forms a socket connecting device for connecting with the second connecting part 421. The second connecting device for connecting the two transmission lines, the second connecting part is connected with the third connecting part. Both the socket connection part and the second connection part 421 of the socket are arranged corresponding to the plug, so as to facilitate the docking connection between the plug and the socket and the docking connection between the socket and the second transmission line, and improve wiring efficiency.

In the embodiment shown in Figures 1 to 3, the outer wall of the plug connection part is engaged with the inner wall of the socket connection part, that is, the plug connection part of the split groove structure cooperates with the correspondingly arranged socket connection part to connect the plug and the socket. Together, correspondingly, the plug conductor 200 and the socket conductor 500 are also docked, the plug conductor 200 and the socket conductor 500 are connected together and can be conducted, and the plug conductor 200 and the socket conductor 500 are arranged coaxially.

It should be noted that, the first connecting part 111 and the second connecting part 421 can be threaded connection, buckle connection, snap-lock connection, etc., which can be specifically set according to actual needs, according to the first transmission line and The connection structure of the second transmission line is set correspondingly, which will not be repeated here.

Further, as shown in FIG. 3 , the socket body 400, the third cylindrical body 410 and the fourth cylindrical body 420 are integrally arranged, the inner cavity radius of the third cylindrical body 410 is larger than the inner cavity radius of the fourth cylindrical body 420, and the fourth cylindrical body The radius of the lumen of the body 420 is equal to the radius of the lumen of the socket.

Further, as shown in FIG. 3 , a socket insulating cylinder 600 is also provided between the socket conductor 500 and the socket body 400, and the socket insulating cylinder 600 is pressed into the inner cavity of the socket by crimping, and the outer wall of the socket insulating cylinder 600 and the socket The inner wall of the inner cavity is closely matched with the inner wall of the fourth cylinder 420 , and the inner wall of the socket insulating cylinder 600 is closely matched with the outer wall of the socket conductor 500 to fix the socket conductor 500 and make the socket conductor 500 and the socket body 400 insulated.

The socket conductor 500 is also provided with a shoulder structure to limit the position. Those skilled in the art can actually set it according to the needs, and will not repeat it here.

In addition, the third docking part is arranged in a split groove structure, and those skilled in the art can make specific settings according to needs, such as setting a split groove structure in the second cylindrical body 120, and inserting the second docking part into the split groove structure of the third docking part The connection between the plug conductor 200 and the socket conductor 500 is realized.

Certainly, the third docking portion may also be any docking structure in a leaf spring socket structure, a crown spring socket structure, a reverse rivet claw spring socket structure or a wire spring socket structure.

In the embodiment shown in FIG. 3 , the butt end of the second docking portion is located in the inner cavity of the second cylinder 120 , and the butt end of the third docking portion is located in the inner cavity of the third cylinder 410 . Compared with the setting where the butt end of the second docking part extends out of the inner cavity of the second cylinder 120 or the third docking part extends out of the inner cavity of the third cylinder 410, the present application can make the plug conductor 200 and the socket conductor 500 , the contact part is located in the second barrel 120 and the third barrel 410 at the same time, which improves the force stability of the docking part, prolongs the service life of the radio frequency coaxial connector, and reduces the production cost.

On the basis of any of the above embodiments, the plug body 100, the first cylinder 110, the second cylinder 120, the socket body 400, the third cylinder 410 and the fourth cylinder 420 can be made of copper and other metals , and the surface is nickel-plated or gold-plated; the plug conductor 200 and the socket conductor 500 can also be made of copper and its metals, and the surface is nickel-plated or gold-plated to obtain better conduction performance of the RF coaxial connector and extend the plug-in Pull life, improve reliability.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the utility model, and the description thereof is relatively specific and detailed, but it should not be understood as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the scope of protection of the utility model patent should be based on the appended claims.

Claims (10)

1. a kind of plug of radio frequency (RF) coaxial connector characterized by comprising

Header body, the header body are equipped with the plug inner cavity being arranged along its length, the both ends point of the header body Not She You the first cylinder and the second cylinder, the plug inner cavity be connected to first cylinder inner cavity and second cylinder it is interior Chamber, first cylinder are equipped with first connecting portion, and second cylinder is equipped with plug connection；And

Plug conductors, the plug conductors along the header body length direction be set to the plug in it is intracavitary and with it is described Header body insulation set, the both ends of the plug conductors are respectively equipped with the first docking section and the second docking section, and described first pair The ipsilateral setting of socket part and the first connecting portion simultaneously forms the first attachment device for docking with first transmission line, and described the The ipsilateral setting of two docking sections and the plug connection simultaneously forms plug-in connection device for docking with socket.

2. the plug of radio frequency (RF) coaxial connector according to claim 1, which is characterized in that intracavitary in the plug to be additionally provided with First insulating cylinder, the inner wall of first insulating cylinder and the outer wall of the plug conductors are cooperatively connected, first insulating cylinder Outer wall and the inner wall of the plug inner cavity are cooperatively connected.

3. the plug of radio frequency (RF) coaxial connector according to claim 2, which is characterized in that first cylinder it is interior intracavitary It is additionally provided with the second insulating cylinder, second insulating cylinder is set in the outer wall of the plug conductors, and the middle part of the plug conductors is also Equipped with first shaft shoulder, first insulating cylinder and second insulating cylinder are respectively arranged on the two sides of first shaft shoulder.

4. the plug of radio frequency (RF) coaxial connector according to claim 1, which is characterized in that second cylinder is additionally provided with use In the limiting section with socket cooperation limit.

5. the plug of radio frequency (RF) coaxial connector according to claim 4, which is characterized in that the limiting section includes annular Slot, the annular groove are arranged around the place axis of second cylinder and are set to the outer wall of second cylinder；

Or the limiting section includes bar shaped groove, the bar shaped groove is equipped at least one, and the bar shaped groove is along described second The length direction of cylinder is arranged and is set to the barrel of second cylinder, forms strip crevice.

6. the plug of radio frequency (RF) coaxial connector according to claim 1-5, which is characterized in that the header body It is additionally provided with the fixed shaft shoulder, the outer wall of the outer wall of first cylinder or second cylinder or positioned at the fixed shaft shoulder side The header body outer wall is equipped with fixed thread, further includes fixture nut, and the fixture nut and the fixed thread cooperate, simultaneously The plug is fixed.

7. the plug of radio frequency (RF) coaxial connector according to claim 6, which is characterized in that it further include sealing ring, it is described solid The side of dead axle shoulder is additionally provided with seal groove, and the sealing ring is sheathed in the seal groove and cooperates with the fixture nut will The plug is fixed.

8. a kind of radio frequency (RF) coaxial connector characterized by comprising

Such as the plug of the described in any item radio frequency (RF) coaxial connectors of claim 1-7；And

Socket, the both ends of the socket are respectively equipped with unitor and the second attachment device, the unitor with The plug-in connection device is correspondingly arranged, and for being connected with second transmission line, the socket connects second attachment device Connection device docks with the plug-in connection device, connect the plug and the socket and by the first transmission line and institute State second transmission line connection.

9. radio frequency (RF) coaxial connector according to claim 8, which is characterized in that the socket includes jack body and socket Conductor；

The jack body is equipped with the socket inner cavity being arranged along its length, and the both ends of the jack body are respectively equipped with third Cylinder and the 4th cylinder, the socket inner cavity are connected to the inner cavity of the third cylinder and the inner cavity of the 4th cylinder, and described Three cylinders are equipped with the socket connection part connecting with the plug connection, and the 4th cylinder is equipped with second connecting portion；

The socket conductors along the jack body length direction be set to the socket in it is intracavitary and with the jack body it is exhausted Edge setting, the both ends of the socket conductors are respectively equipped with third docking section and the 4th docking section, the third docking section and described The ipsilateral setting of socket connection part simultaneously forms the unitor for docking with the plug-in connection device, and described the The ipsilateral setting of four docking sections and the second connecting portion and formed for the second transmission line is docked described second connect Device, second docking section and the third docking section are cooperatively connected.

10. radio frequency (RF) coaxial connector according to claim 9, which is characterized in that the docking end of second docking section Intracavitary in second cylinder, the docking end of the third docking section is located at the interior intracavitary of the third cylinder.