CN216214082U - Antenna matching connection assembly - Google Patents

Abstract

The utility model provides an antenna matching connection assembly, which comprises a pipe body, a first matching assembly, a second matching assembly and a cable assembly, wherein the pipe body is provided with a first end and a second end; the tube body is arranged between two different antenna whips needing impedance matching and is detachably connected with the two antenna whips respectively; a first cavity which is through along the axial direction of the pipe body is arranged in the pipe body; the first matching assembly and the second matching assembly are arranged in the first cavity and are arranged at two ends of the extension direction of the pipe body, and the positions of the first matching assembly and the second matching assembly relative to the pipe body can be adjusted; the cable assembly is arranged in a first cavity between the first matching assembly and the second matching assembly, and two ends of the cable assembly are fixedly connected with the first matching assembly and the second matching assembly respectively; the first matching assembly, the cable assembly and the second matching assembly are electrically connected in sequence.

Description

Antenna matching connection assembly

Technical Field

The utility model relates to the technical field of antenna equipment, in particular to an antenna matching and connecting assembly.

Background

The antenna is an indispensable component of wireless communication and is used for radiating and receiving radio waves, so that the interconversion between high-frequency current and the radio waves is realized, the transmission and the reception of signals are realized, and the transmission of radio signals is realized. The antenna generally has the advantages of strong anti-interference performance, high transmission rate and the like in a specific working frequency band. When the antenna is used, due to the adjustment requirements of impedance matching or enlargement of the area of a radiating body and the like, the antenna is often required to be adjusted or the assembly is required to be replaced, but the strength of a cable used for impedance matching and a connector of the cable is limited, and the cable cannot be well matched with an antenna structure, so that the adjustment process of the antenna is not convenient enough, and the extension or adjustment purpose of the antenna is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides an antenna matching connection assembly that is flexible to use and convenient and reliable to install.

The technical scheme of the utility model is realized as follows: the utility model provides an antenna matching and connecting assembly which comprises a pipe body 1, a first matching assembly 2, a second matching assembly 3 and a cable assembly 4, wherein the pipe body is provided with a first end and a second end; the tube body 1 is arranged between two different antenna whips needing impedance matching and is detachably connected with the two antenna whips respectively; a first cavity 100 which is through along the axial direction is arranged in the pipe body 1; the first matching assembly 2 and the second matching assembly 3 are both arranged in the first cavity 100 and are arranged at two ends of the extension direction of the pipe body 1, and the positions of the first matching assembly 2 and the second matching assembly 3 relative to the pipe body 1 can be adjusted; the cable assembly 4 is arranged in the first cavity 100 between the first matching assembly 2 and the second matching assembly 3, and two ends of the cable assembly 4 are fixedly connected with the first matching assembly 2 and the second matching assembly 3 respectively; the first matching member 2, the cable member 4 and the second matching member 3 are electrically connected in sequence.

On the basis of the above technical solution, preferably, the first matching assembly 2 includes a first cylinder 21, a pin 22, a first stopper 23, a first gasket 24 and a first pressing block 25; a through second cavity 200 is arranged in the axial direction of the first cylinder 21; the first limiting block 23 is arranged at one end of the first cylinder 21 in the extending direction, the inner surface of the first cylinder 21 is provided with a first bulge 26 for limiting the position of the first limiting block 23, and the surface of the first limiting block 23 is respectively abutted against the first bulge 26 and the first cylinder 21; a first through hole 231 which is axially through is formed in the first limiting block 23, a second protruding portion 232 which limits the position of the contact pin 22 is arranged in the first through hole 231, and the contact pin 22 is embedded in the first through hole 231 and is respectively abutted against the surface of the first limiting block 23 and the surface of the second protruding portion 232; one end of the contact pin 22 far away from the second boss 232 is provided with a first blind hole 233; the cable assembly 4 includes a core wire 41 and a shielding net 42, the core wire 41 at one end of the cable assembly 4 extends into the first blind hole 233, and the shielding net 42 at the end is arranged around along the radial direction of the core wire 41; the first gasket 24 is arranged between the first stopper 23 and the shielding net 42 and surrounds the core wire 41 at the end of the cable assembly 4, and the surface of the first gasket 24 is respectively abutted against the first stopper 23, the contact pin 22 and the shielding net 42; the first pressing block 25 is arranged in the first cylinder 21 far away from the first protruding portion 26, and the first pressing block 25 is fixedly connected with the first cylinder 21 and abuts against the end face, far away from the first limiting block 23, of the shielding net 42.

Further preferably, the second matching assembly 3 includes a second cylinder 31, a socket 32, a second stopper 33, a second gasket 34 and a second pressing block 35; a third through cavity 300 is arranged in the axial direction of the second cylinder 31; the second stopper 33 is arranged at one end of the second cylinder 31, the inner surface of the second cylinder 31 is provided with a third bulge 36 for limiting the position of the second stopper 33, and the second stopper 33 is respectively abutted against the inner surface of the second cylinder 31 and the surface of the third bulge 36; the second stopper 33 is provided with a second through hole 331 therethrough, and the axial extension direction of the second through hole 331 is the same as the axial extension direction of the second cylinder 31; the second through hole 331 is internally provided with the socket 32, and the second through hole 331 is also internally provided with a fourth convex part 332 for limiting the position of the socket 32; the socket 32 abuts against the surfaces of the second stopper 33 and the fourth protrusion 332; a second blind hole 333 and a third blind hole 334 are respectively arranged at two ends of the socket 32 in the extending direction; the shape of the second blind hole 333 is matched with that of one end of the contact pin 22 far away from the first blind hole 233, and the shape of one end of the first cylinder 21 far away from the cable assembly 4 is matched with that of one end of the second cylinder 31 far away from the cable assembly 4; the core wire 41 at the other end of the cable assembly 4 extends into the third blind hole 334, and the shielding net 42 at the end of the cable assembly 4 is arranged around along the radial direction of the core wire 41 at the end; the second gasket 34 is arranged in the third cavity 300 between the shielding net 42 and the second stopper 33, and the second gasket 34 is respectively abutted against the second stopper 33, the socket 32 and one side end face of the shielding net 42; the second pressing block 35 is disposed in the third cavity 300 and on a side far away from the second limiting block 33, and the second pressing block 35 is fixedly connected to the second cylinder 31 and abuts against the other end surface of the shielding net 42 at the end of the cable assembly 4.

Still more preferably, the first matching component 2 or the second matching component 3 is slidably connected with the inner surface of the pipe body 1; the surface of the pipe body 1 is provided with a plurality of through positioning holes 11; a positioning part 12 is embedded in the positioning hole 11, and the positioning part 12 penetrates through the positioning hole 11 and abuts against the first matching component 2 or the second matching component 3.

Still further preferably, the outer surface of the first matching component 2 or the second matching component 3 is provided with a first clamping groove 5, the inner surface of the pipe body 1 is correspondingly provided with a plurality of second clamping grooves 6, a sealing element 7 is arranged in an annular area and formed by surrounding the adjacent first clamping grooves 5 and the second clamping grooves 6, and the sealing element 7 is tightly matched with the first clamping grooves 5 and the second clamping grooves 6.

Still more preferably, the sealing member 7 is an O-ring.

Further preferably, the first stopper 23 and the second stopper 33 are made of an insulating material.

Further preferably, a gap is formed between the first matching component 2 or the second matching component 3 and the inner surface of the pipe body 1; an annular isolation sleeve 8 is also arranged in the pipe body 1; the isolation sleeve 8 is arranged in the first cavity 100, the isolation sleeve 8 is arranged along the axial extension direction of the pipe body 1, the isolation sleeve (8) is arranged on the outer surface of the first matching assembly (2) or the second matching assembly 3 in a surrounding mode and is fixed with the outer surface of the first matching assembly or the second matching assembly, and the outer surface of the isolation sleeve 8 is connected with the inner surface of the pipe body 1 in a sliding mode; the surface of the pipe body 1 is provided with a plurality of through positioning holes 11; the positioning piece 12 is embedded in the positioning hole 11 and is fixedly connected with the isolation sleeve 8, and the current position of the first matching assembly 2 or the second matching assembly 3 relative to the pipe body 1 is locked.

Compared with the prior art, the antenna matching connection assembly provided by the utility model has the following beneficial effects:

(1) according to the utility model, the cable assembly with the corresponding length is selected, the first matching assembly and the second matching assembly are connected with the cable assembly, the first matching assembly and the second matching assembly, and the tube body with the proper length is selected to be assembled with the cable assembly, the first matching assembly and the second matching assembly, so that the matching assembly or the radiator with specific impedance is formed, and the matching assembly or the radiator can be well matched with the existing antenna for installation or disassembly, thereby simplifying the expansion and adjustment process;

(2) the first bulge and the second bulge of the first matching assembly can limit the extending length of the contact pin, the contact pin is protected to a certain extent by the first barrel, and the first pressing block and the first gasket can press one end of the cable assembly to enable the cable assembly to be in good contact with the contact pin;

(3) the third boss and the fourth boss of the second matching assembly can limit the specific position of the socket, so that the second blind hole of the second matching assembly is better matched with the corresponding contact pin in an alignment manner, and the second barrel can also play a role in protection;

(4) the sealing element or the isolation sleeve is matched for use, so that the matching and connecting assembly can use the antenna sizes with different diameters, and the application range of the matching and connecting assembly is enlarged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front view, in half section, of an antenna matching connection assembly of the present invention;

fig. 2 is a front view, half-sectioned, showing a combined state of a cable assembly and a first matching assembly of an antenna matching connection assembly according to the present invention;

fig. 3 is a front view, partly in cross-section, of a cable assembly and a second matching assembly of an antenna matching connection assembly according to the present invention;

fig. 4 is a schematic structural diagram of a cable assembly of an antenna matching connection assembly according to the present invention;

fig. 5 is a sectional view of the first matching assembly, the spacer sleeve and the tube of the antenna matching and connecting assembly according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in fig. 1, the present invention provides an antenna matching connection assembly, which includes a tube 1, a first matching assembly 2, a second matching assembly 3, and a cable assembly 4;

the tube body 1 is arranged between two different antenna whips needing impedance matching and is detachably connected with the two antenna whips respectively; a first cavity 100 which is through along the axial direction is arranged in the pipe body 1; the first matching assembly 2 and the second matching assembly 3 are both arranged in the first cavity 100 and are arranged at two ends of the extension direction of the pipe body 1, and the positions of the first matching assembly 2 and the second matching assembly 3 relative to the pipe body 1 can be adjusted; the cable assembly 4 is arranged in the first cavity 100 between the first matching assembly 2 and the second matching assembly 3, and two ends of the cable assembly 4 are fixedly connected with the first matching assembly 2 and the second matching assembly 3 respectively; the first matching member 2, the cable member 4 and the second matching member 3 are electrically connected in sequence.

The antenna matching and connecting assembly is mainly suitable for whip antennas, antenna whips are arranged at two ends of a tube body 1 in the extending direction respectively, and a first matching assembly 2 and a second matching assembly 3 are arranged between the tube body 1 and the adjacent antenna whips in pairs. The impedance of the antenna matching and connecting component is related to the length of the cable component 4, and the length of the corresponding tube body 1 is not less than the total length of the cable component 4, the first matching component 2 and the second matching component 3 after combination. The tube body 1 has sufficient strength, so that the whole antenna is not easy to bend, and the cable assembly 4, the first matching assembly 2 and the second matching assembly 3 can be protected. When the impedance is adjusted, only the antenna matching connection assemblies with different lengths need to be replaced, and the inconvenience of field adjustment can be eliminated. When the antenna whip is mounted, the first matching element 2 or the second matching element 3 may be disposed at the end of the corresponding antenna whip.

As shown in fig. 2 in conjunction with fig. 4, a specific structure of the first matching unit 2 is shown. The first matching assembly 2 comprises a first barrel 21, a pin 22, a first limiting block 23, a first gasket 24 and a first pressing block 25; a through second cavity 200 is arranged in the axial direction of the first cylinder 21; the first limiting block 23 is arranged at one end of the first cylinder 21 in the extending direction, the inner surface of the first cylinder 21 is provided with a first bulge 26 for limiting the position of the first limiting block 23, and the surface of the first limiting block 23 is respectively abutted against the first bulge 26 and the first cylinder 21; a first through hole 231 which is axially through is formed in the first limiting block 23, a second protruding portion 232 which limits the position of the contact pin 22 is arranged in the first through hole 231, and the contact pin 22 is embedded in the first through hole 231 and is respectively abutted against the surface of the first limiting block 23 and the surface of the second protruding portion 232; one end of the contact pin 22 far away from the second boss 232 is provided with a first blind hole 233; the cable assembly 4 includes a core wire 41 and a shielding net 42, the core wire 41 at one end of the cable assembly 4 extends into the first blind hole 233, and the shielding net 42 at the end is arranged around along the radial direction of the core wire 41; the first gasket 24 is arranged between the first stopper 23 and the shielding net 42 and surrounds the core wire 41 at the end of the cable assembly 4, and the surface of the first gasket 24 is respectively abutted against the first stopper 23, the contact pin 22 and the shielding net 42; the first pressing block 25 is arranged in the first cylinder 21 far away from the first protruding portion 26, and the first pressing block 25 is fixedly connected with the first cylinder 21 and abuts against the end face, far away from the first limiting block 23, of the shielding net 42. The first gasket 24 and the first pressing block 25 define the shape and position of the shielding net, the first blind hole 233 defines the position of the ferrule, so that one end of the cable assembly 4 is tightly connected with the first matching assembly 2, and the first pressing block 25 can be matched with the first cylinder 21 in a threaded fastening mode for use. The position of the tightened pin 22 does not shift. When the first barrel 21 is matched with the pipe body 1, the contact pin and the cable assembly 4 are not in direct contact with the external environment, and the reliability of the use is improved.

As shown in fig. 3, a specific structure of the second matching member 3 is shown. The second matching component 3 comprises a second cylinder 31, a socket 32, a second limit block 33, a second gasket 34 and a second pressing block 35; a third through cavity 300 is arranged in the axial direction of the second cylinder 31; the second stopper 33 is arranged at one end of the second cylinder 31, the inner surface of the second cylinder 31 is provided with a third bulge 36 for limiting the position of the second stopper 33, and the second stopper 33 is respectively abutted against the inner surface of the second cylinder 31 and the surface of the third bulge 36; the second stopper 33 is provided with a second through hole 331 therethrough, and the axial extension direction of the second through hole 331 is the same as the axial extension direction of the second cylinder 31; the second through hole 331 is internally provided with the socket 32, and the second through hole 331 is internally provided with a fourth convex part 332 for limiting the position of the socket 32; the socket 32 abuts against the surfaces of the second stopper 33 and the fourth protrusion 332; a second blind hole 333 and a third blind hole 334 are respectively arranged at two ends of the socket 32 in the extending direction; the shape of the second blind hole 333 is matched with that of one end of the contact pin 22 far away from the first blind hole 233, and the shape of one end of the first cylinder 21 far away from the cable assembly 4 is matched with that of one end of the second cylinder 31 far away from the cable assembly 4; the core wire 41 at the other end of the cable assembly 4 extends into the third blind hole 334, and the shielding net 42 at the end of the cable assembly 4 is arranged around along the radial direction of the core wire 41 at the end; the second gasket 34 is arranged in the third cavity 300 between the shielding net 42 and the second stopper 33, and the second gasket 34 is respectively abutted against the second stopper 33, the socket 32 and one side end face of the shielding net 42; the second pressing block 35 is disposed in the third cavity 300 and on a side far away from the second limiting block 33, and the second pressing block 35 is fixedly connected to the second cylinder 31 and abuts against the other end surface of the shielding net 42 at the end of the cable assembly 4. Likewise, the second gasket 34 and the second press block 35 can press the shielding mesh 42; the third blind hole 334 of the socket 32 can define the position of the core wire 41, and the second stopper 33 and the third protrusion 36 can prevent the cable assembly 4 at the end from moving along the tube 1, thereby improving the overall strength of the second matching assembly 3. The second cylinder 31 can also provide a certain protection capability for the second matching component 3 by matching with the tube body 1, so that a complete and reliable signal path is formed inside the tube body 1.

Besides adjusting the length of the cable assembly 4, the antenna matching connection assembly can be finely adjusted, specifically, the following two methods can be adopted:

1) the first matching component 2 or the second matching component 3 is connected with the inner surface of the pipe body 1 in a sliding way; the surface of the pipe body 1 is provided with a plurality of through positioning holes 11; a positioning part 12 is embedded in the positioning hole 11, and the positioning part 12 penetrates through the positioning hole 11 and abuts against the first matching component 2 or the second matching component 3. The specific position of the first matching component 2 or the second matching component 3 in the tube body 1 can be adjusted by selecting different positioning holes 11, and the installation and abdication of the antenna whip body and the first matching component 2 or the second matching component 3 are facilitated while the impedance value is kept unchanged.

The outer surface of the first matching component 2 or the second matching component 3 is provided with a first clamping groove 5, the inner surface of the pipe body 1 is correspondingly provided with a plurality of second clamping grooves 5, a sealing element 7 is arranged between the adjacent first clamping grooves 5 and the adjacent second clamping grooves 6 in a surrounding manner and in an annular area, and the sealing element 7 is tightly matched with the first clamping grooves 5 and the second clamping grooves 6. The sealing member 7 can seal and protect the first matching component 2 or the second matching component 3 near the end face of the pipe body 1, and prevent water or other impurities from entering the first cavity 100 to corrode related electrical components. In the present invention, the sealing member 7 may be an O-ring. The first stopper 23 and the second stopper 33 of the present invention are made of an insulating material.

2) A gap is formed between the first matching component 2 or the second matching component 3 and the inner surface of the pipe body 1; an annular isolation sleeve 8 is also arranged in the pipe body 1; the isolation sleeve 8 is arranged in the first cavity 100, the isolation sleeve 8 is arranged along the axial extension direction of the pipe body 1, the isolation sleeve 8 is arranged on the outer surface of the first matching assembly 2 or the second matching assembly 3 in a surrounding mode and is fixed with the outer surface of the first matching assembly 2 or the second matching assembly 3, and the outer surface of the isolation sleeve 8 is connected with the inner surface of the pipe body 1 in a sliding mode; the surface of the pipe body 1 is provided with a plurality of through positioning holes 11; the positioning piece 12 is embedded in the positioning hole 11 and is fixedly connected with the isolation sleeve 8, and the current position of the first matching assembly 2 or the second matching assembly 3 relative to the pipe body 1 is locked. Adopt the structure of spacer sleeve 8 and body 1 matched with for antenna matching coupling assembling can be applicable to the impedance matching and the connection form of the bigger antenna whip body of diameter, further improves. The application range of the antenna matching and connecting component is wide.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. An antenna matching connection assembly, characterized by; the device comprises a pipe body (1), a first matching assembly (2), a second matching assembly (3) and a cable assembly (4); the tube body (1) is arranged between two different antenna whips needing impedance matching and is detachably connected with the two antenna whips respectively; a first cavity (100) which is through along the axial direction is arranged in the pipe body (1); the first matching assembly (2) and the second matching assembly (3) are arranged in the first cavity (100) and are arranged at two ends of the extension direction of the pipe body (1), and the positions of the first matching assembly (2) and the second matching assembly (3) relative to the pipe body (1) can be adjusted; the cable assembly (4) is arranged in the first cavity (100) between the first matching assembly (2) and the second matching assembly (3), and two ends of the cable assembly (4) are fixedly connected with the first matching assembly (2) and the second matching assembly (3) respectively; the first matching assembly (2), the cable assembly (4) and the second matching assembly (3) are electrically connected in sequence.

2. An antenna matching connection assembly as claimed in claim 1; the first matching assembly (2) comprises a first cylinder (21), a contact pin (22), a first limiting block (23), a first gasket (24) and a first pressing block (25); a through second cavity (200) is arranged in the axial direction of the first cylinder (21); the first limiting block (23) is arranged at one end of the first cylinder body (21) in the extending direction, a first protruding portion (26) for limiting the position of the first limiting block (23) is arranged on the inner surface of the first cylinder body (21), and the surface of the first limiting block (23) is respectively abutted against the first protruding portion (26) and the first cylinder body (21); a first through hole (231) which is axially through is formed in the first limiting block (23), a second protruding portion (232) which limits the position of the contact pin (22) is arranged in the first through hole (231), and the contact pin (22) is embedded in the first through hole (231) and is respectively abutted against the surface of the first limiting block (23) and the surface of the second protruding portion (232); one end of the contact pin (22) far away from the second bulge (232) is provided with a first blind hole (233); the cable assembly (4) comprises a core wire (41) and a shielding net (42), the core wire (41) at one end of the cable assembly (4) extends into the first blind hole (233), and the shielding net (42) at the end is arranged in a surrounding manner along the radial direction of the core wire (41); the first gasket (24) is arranged between the first limiting block (23) and the shielding net (42) and surrounds the core wire (41) at the end part of the cable assembly (4), and the surface of the first gasket (24) is respectively propped against the first limiting block (23), the contact pin (22) and the shielding net (42); the first pressing block (25) is arranged in the first cylinder (21) far away from the first protruding portion (26), and the first pressing block (25) is fixedly connected with the first cylinder (21) and abuts against the end face, far away from the first limiting block (23), of the shielding net (42).

3. An antenna matching connection assembly as claimed in claim 2; the second matching assembly (3) comprises a second cylinder (31), a socket (32), a second limiting block (33), a second gasket (34) and a second pressing block (35); a third through cavity (300) is arranged in the axial direction of the second cylinder (31); the second limiting block (33) is arranged at one end of the second cylinder body (31), the inner surface of the second cylinder body (31) is provided with a third protruding part (36) for limiting the position of the second limiting block (33), and the second limiting block (33) is respectively abutted against the inner surface of the second cylinder body (31) and the surface of the third protruding part (36); a second through hole (331) which penetrates through the second limiting block (33) is formed in the second limiting block, and the axial extension direction of the second through hole (331) is the same as that of the second barrel body (31); a socket (32) is arranged in the second through hole (331), and a fourth bulge (332) for limiting the position of the socket (32) is also arranged in the second through hole (331); the socket (32) is respectively abutted against the surfaces of the second limiting block (33) and the fourth bulge part (332); a second blind hole (333) and a third blind hole (334) are respectively formed at two ends of the socket (32) in the extension direction; the shape of the second blind hole (333) is matched with that of one end of the contact pin (22) far away from the first blind hole (233), and the shape of one end of the first cylinder (21) far away from the cable assembly (4) is matched with that of one end of the second cylinder (31) far away from the cable assembly (4); the core wire (41) at the other end of the cable assembly (4) extends into the third blind hole (334), and the shielding net (42) at the end part of the cable assembly (4) is arranged in a surrounding manner along the radial direction of the core wire (41) at the end part; the second gasket (34) is arranged in a third cavity (300) between the shielding net (42) and the second limiting block (33), and the second gasket (34) is respectively abutted against the second limiting block (33), the socket (32) and one side end face of the shielding net (42); the second pressing block (35) is arranged on one side, far away from the second limiting block (33), of the third cavity (300), and the second pressing block (35) is fixedly connected with the second cylinder (31) and abuts against the other end face of the shielding net (42) at the end part of the cable assembly (4).

4. An antenna matching connection assembly as claimed in claim 3; the first matching component (2) or the second matching component (3) is connected with the inner surface of the pipe body (1) in a sliding way; the surface of the pipe body (1) is provided with a plurality of through positioning holes (11); a positioning piece (12) is embedded in the positioning hole (11), and the positioning piece (12) penetrates through the positioning hole (11) and abuts against the first matching component (2) or the second matching component (3).

5. An antenna matching connection assembly as claimed in claim 4, wherein; the outer surface of the first matching component (2) or the second matching component (3) is provided with a first clamping groove (5), the inner surface of the pipe body (1) is correspondingly provided with a plurality of second clamping grooves (6), a sealing element (7) is arranged in an annular area and formed by surrounding the adjacent first clamping grooves (5) and the adjacent second clamping grooves (6), and the sealing element (7) is tightly matched with the first clamping grooves (5) and the second clamping grooves (6).

6. An antenna matching connection assembly as claimed in claim 5; the sealing element (7) is an O-shaped sealing ring.

7. An antenna matching connection assembly as claimed in claim 3; the first limiting block (23) and the second limiting block (33) are made of insulating materials.

8. An antenna matching connection assembly as claimed in claim 3; the first matching assembly (2) or the second matching assembly (3) is arranged in a clearance mode with the inner surface of the pipe body (1); an annular isolation sleeve (8) is also arranged in the pipe body (1); the isolation sleeve (8) is arranged in the first cavity (100), the isolation sleeve (8) is arranged along the axial extension direction of the pipe body (1), the isolation sleeve (8) is arranged on the outer surface of the first matching component (2) or the second matching component (3) in a surrounding mode and is fixed with the outer surface of the first matching component or the second matching component, and the outer surface of the isolation sleeve (8) is connected with the inner surface of the pipe body (1) in a sliding mode; the surface of the pipe body (1) is provided with a plurality of through positioning holes (11); the positioning piece (12) is embedded in the positioning hole (11) and is fixedly connected with the isolation sleeve (8), and the current position of the first matching assembly (2) or the second matching assembly (3) relative to the pipe body (1) is locked.

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