CN216055344U - SMA type radio frequency coaxial connector - Google Patents
SMA type radio frequency coaxial connector Download PDFInfo
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- CN216055344U CN216055344U CN202122056506.2U CN202122056506U CN216055344U CN 216055344 U CN216055344 U CN 216055344U CN 202122056506 U CN202122056506 U CN 202122056506U CN 216055344 U CN216055344 U CN 216055344U
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- radio frequency
- rear shell
- frequency coaxial
- coaxial connector
- type radio
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Abstract
The utility model belongs to the technical field of radio frequency coaxial connectors, and particularly relates to an SMA type radio frequency coaxial connector which comprises a screw sleeve, wherein one end of the screw sleeve is connected with a front shell, the other end of the screw sleeve is connected with a rear shell, an installation block is fixedly connected inside the screw sleeve, an inner guide pin is embedded inside the installation block, a connecting groove is formed in one end of the inner guide pin, a lead block is fixedly connected inside the rear shell, one end of the lead block extends to the outside of the rear shell, an installation groove is formed in one end of the lead block, a lead groove penetrates through the inside of the installation groove, a cable is arranged at the bottom of the rear shell, a wire core is arranged at one end of the cable, a locking metal wire is sleeved outside the lead block, and two groups of extrusion assemblies are symmetrically arranged inside the rear shell. The utility model improves the connection tightness of the wire core and the inner guide pin, and the connection part is not easy to be torn off and loosened, thereby ensuring that the signal transmission is more stable.
Description
Technical Field
The utility model belongs to the technical field of radio frequency coaxial connectors, and particularly relates to an SMA type radio frequency coaxial connector.
Background
A radio frequency 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. It belongs to a mechatronic product. The SMA connector is a small-sized threaded coaxial connector, has the advantages of small volume, wide frequency band, excellent mechanical and electrical properties and high reliability, is a radio frequency connector which is most widely applied, and is widely applied to the fields of microwave communication, aerospace navigation, weapon systems, microwave measuring equipment and the like.
One end of the SMA type radio frequency coaxial connector is usually connected with a cable, and a wire core of the cable is contacted with a conductor inside the SMA type radio frequency coaxial connector, but the wire core and the conductor are generally connected in a welding mode in the existing connection mode, so that the operation is troublesome, and the signal transmission is unstable due to the fact that the wire core and the conductor are easily broken or disconnected in the later period.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides the SMA type radio frequency coaxial connector which has the characteristics that the connection tightness of the wire core and the inner guide pin is improved, and the connection part is not easy to be torn off or loosened, so that the signal transmission is more stable.
In order to achieve the purpose, the utility model provides the following technical scheme: an SMA type radio frequency coaxial connector comprises a screw sleeve, wherein one end of the screw sleeve is connected with a front shell, the other end of the screw sleeve is connected with a rear shell, an installation block is fixedly connected inside the screw sleeve, an inner guide pin is embedded inside the installation block, a connecting groove is formed in one end of the inner guide pin, a lead block is fixedly connected inside the rear shell, one end of the lead block extends to the outside of the rear shell, an installation groove is formed in one end of the lead block, a lead groove is formed in the installation groove in a penetrating mode, a cable is arranged at the bottom of the rear shell, a cable core is arranged at one end of the cable, a locking metal wire is sleeved outside the lead block, and two groups of extrusion assemblies are symmetrically arranged inside the rear shell;
the extrusion assembly comprises a fixed cylinder, an extrusion plate, a push rod and a pressing block, the fixed cylinder is fixedly installed in the rear shell, the push rod is arranged in the fixed cylinder, the top end of the push rod penetrates through the outer portion of the rear shell and the pressing block fixedly connected with the top end of the push rod, and the extrusion plate is fixedly connected to the bottom end of the push rod.
As the preferable technical scheme of the SMA type radio frequency coaxial connector, two sliding rails are symmetrically arranged on the inner wall of the fixed cylinder, sliding blocks are fixedly arranged on two sides of the push rod, and the sliding blocks are connected with the sliding rails in a sliding mode.
As a preferred technical scheme of the SMA type radio frequency coaxial connector, a protective shell is arranged on one side of the rear shell, internal threads are arranged inside the protective shell, and external threads are arranged outside the rear shell.
According to the preferred technical scheme of the SMA type radio frequency coaxial connector, a threading hole is formed in one side of the protective shell in a penetrating mode, and a protective pad is arranged inside the threading hole.
As a preferred technical scheme of the SMA type radio frequency coaxial connector, a dustproof cover is arranged on one side of the front shell.
As the preferable technical scheme of the SMA type radio frequency coaxial connector, the connecting groove is matched with the structure of the wire core, and the mounting groove is matched with the structure of the cable.
Compared with the prior art, the utility model has the beneficial effects that:
1. when the utility model is used, the wire core is sequentially penetrated through the installation groove and the wire guide groove and is finally inserted into the connecting groove so as to be connected with the inner guide pin, the wire core is just matched with the connecting groove, the cable is just matched with the installation groove, the wire guide groove plays a role in guiding and positioning, so that the wire core is quickly matched with the connecting groove, the installation efficiency is improved, then the locking metal wire is locked outside the wire block by using a tool, the installation groove is deformed by a locking and extruding mode, so that the cable is tightly contacted with and extruded by the wire block, the tightness of the connection of the cable and the SMA type radio frequency coaxial connector can be improved, the connection part is not easy to be torn off and loosened, then two pressing blocks are synchronously and oppositely extruded by using two fingers, the pressing blocks push the push rod and the extrusion plate, the sliding block and the sliding rail limit the push rod, the transverse offset of the push rod is prevented, so that the two extrusion plates synchronously and oppositely extrude the inner guide pin, make the inside spread groove of interior guide pin receive the extrusion and deform to closely contact and extrude with the sinle silk, improve the compactness that sinle silk and interior guide pin are connected, thereby make signal transmission more stable.
2. When the anti-damage cable is used, the protective shell is connected with the rear shell in a threaded connection mode, the joint of the cable and the SMA type radio frequency coaxial connector is protected, the joint is prevented from being damaged by external force, dust and water pollution to the joint can be reduced, the safety and the tightness of the joint are improved, the protective pad further plays a role in sealing and protecting in order to penetrate the cable through the threading hole, and the dust and water pollution to the joint is further reduced.
3. When the anti-dust cover is used, the anti-dust cover is arranged to protect the inside of the front shell, so that dust and water are prevented from entering the inside of the SMA type radio frequency coaxial connector from the front shell to pollute internal parts, and the SMA type radio frequency coaxial connector is well protected.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic overall perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention showing the installation of a cable;
FIG. 3 is a side view of the protective shell of the present invention;
fig. 4 is a schematic structural diagram of the utility model at a in fig. 2.
In the figure: 1. a threaded sleeve; 2. a front housing; 3. a rear housing; 4. mounting blocks; 5. an inner guide pin; 6. connecting grooves; 7. a lead block; 8. mounting grooves; 9. a wire guide groove; 10. a cable; 11. a wire core; 12. locking the metal wire; 13. a fixed cylinder; 14. a pressing plate; 15. a push rod; 16. briquetting; 17. a slider; 18. a slide rail; 19. a protective shell; 20. threading holes; 21. a protective pad; 22. and a dust cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: an SMA type radio frequency coaxial connector comprises a threaded sleeve 1, one end of the threaded sleeve 1 is connected with a front shell 2, one side of the front shell 2 is provided with a dustproof cover 22, in order to protect the inside of the front shell 2 and prevent dust and water from entering the inside of the SMA type radio frequency coaxial connector from the front shell 2 to pollute internal parts, the SMA type radio frequency coaxial connector is well protected, the other end of the threaded sleeve 1 is connected with a rear shell 3, one side of the rear shell 3 is provided with a protective shell 19, the inside of the protective shell 19 is provided with internal threads, the outside of the rear shell 3 is provided with external threads, the protective shell 19 is connected with the rear shell 3 in a threaded connection mode to protect the connection part of a cable 10 and the SMA type radio frequency coaxial connector and prevent external force from damaging the connection part and also can reduce dust and water pollution on the connection part, the safety and the tightness of the connection part are improved, one side of the protective shell 19 is provided with a threading hole 20 in a penetrating way, the inside of threading hole 20 is provided with a protective pad 21, threading hole 20 is for threading cable 10 in, protective pad 21 further plays a role of sealing protection, further reduces dust and water pollution junction, the inside of swivel nut 1 is fixedly connected with installation block 4, the inside of installation block 4 is embedded with inner guide pin 5, one end of inner guide pin 5 is provided with connecting groove 6, the inside of back shell 3 is fixedly connected with wire block 7, one end of wire block 7 extends to the outside of back shell 3, one end of wire block 7 is provided with mounting groove 8, the inside of mounting groove 8 is provided with wire groove 9 in a penetrating way, the bottom of back shell 3 is provided with cable 10, one end of cable 10 is provided with cable core 11, the outside of wire block 7 is sleeved with locking wire 12, connecting groove 6 is matched with the structure of cable core 11, for more tight connection of cable core 11 and connecting groove 6, mounting groove 8 is matched with the structure of cable 10, in order to tightly connect the installation groove 8 and the cable 10, two groups of extrusion components are symmetrically arranged inside the rear shell 3;
the extrusion subassembly includes a fixed cylinder 13, the stripper plate 14, push rod 15 and briquetting 16, a fixed cylinder 13 fixed mounting is in the inside of backshell 3, a fixed cylinder 13's inside is provided with push rod 15, push rod 15's top is run through to the outside and the fixedly connected with briquetting 16 of backshell 3, push rod 15's bottom fixedly connected with stripper plate 14, a fixed cylinder 13's inner wall symmetry is provided with two slide rails 18, push rod 15's both sides are all fixed and are provided with slider 17, slider 17 and 18 sliding connection of slide rail, in order to carry out spacing effect to push rod 15, prevent push rod 15 lateral shifting.
The working principle and the using process of the utility model are as follows: in the using process of the utility model, firstly, the protective shell 19 is sleeved outside the cable 10 through the threading hole 20, the wire core 11 sequentially passes through the installation groove 8 and the wire guide groove 9 and is finally inserted into the connecting groove 6 so as to be connected with the inner guide pin 5, the wire core 11 is just matched with the connecting groove 6, the cable 10 is just matched with the installation groove 8, the wire guide groove 9 plays a role in guiding and positioning, so that the wire core 11 is rapidly matched with the connecting groove 6, the installation efficiency is improved, then the locking metal wire 12 is locked outside the wire block 7 by using a tool, the installation groove 8 is deformed by a locking and extruding mode, so that the cable 10 is tightly contacted and extruded with the wire block 7, the tightness of the connection between the cable 10 and the SMA type radio frequency coaxial connector can be improved, the connection part is not easy to be torn off and loosened, and then two pressing blocks 16 are synchronously and oppositely pressed by using two fingers, briquetting 16 promotes push rod 15 and stripper plate 14, make two stripper plates 14 synchronous and extrude interior guide pin 5 in opposite directions, make the inside spread groove 6 of interior guide pin 5 receive the extrusion and deform, thereby closely contact and extrude with sinle silk 11, improve the compactness that sinle silk 11 and interior guide pin 5 are connected, thereby make signal transmission more stable, be connected protecting shell 19 with backshell 3 through threaded connection's mode at last, protect cable 10 and SMA type radio frequency coaxial connector's junction, prevent external force from destroying the junction, also can reduce dust and water pollution junction, improve the security and the compactness of junction.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An SMA type radio frequency coaxial connector, comprising a threaded sleeve (1), characterized in that: one end of the threaded sleeve (1) is connected with a front shell (2), the other end of the threaded sleeve (1) is connected with a rear shell (3), the interior of the screw sleeve (1) is fixedly connected with an installation block (4), an inner guide pin (5) is embedded in the installation block (4), one end of the inner guide pin (5) is provided with a connecting groove (6), the inside of the rear shell (3) is fixedly connected with a lead block (7), one end of the lead block (7) extends to the outside of the rear shell (3), one end of the lead block (7) is provided with an installation groove (8), a wire guide groove (9) is arranged in the mounting groove (8) in a penetrating way, a cable (10) is arranged at the bottom of the rear shell (3), a wire core (11) is arranged at one end of the cable (10), a locking metal wire (12) is sleeved outside the wire block (7), and two groups of extrusion assemblies are symmetrically arranged inside the rear shell (3);
the extrusion assembly comprises a fixed cylinder (13), an extrusion plate (14), a push rod (15) and a pressing block (16), the fixed cylinder (13) is fixedly installed inside the rear shell (3), the push rod (15) is arranged inside the fixed cylinder (13), the top end of the push rod (15) penetrates through the outside of the rear shell (3) and the pressing block (16) fixedly connected with the top end of the push rod (15), and the extrusion plate (14) is fixedly connected with the bottom end of the push rod (15).
2. An SMA-type radio frequency coaxial connector according to claim 1, wherein: the inner wall symmetry of fixed section of thick bamboo (13) is provided with two slide rails (18), the both sides of push rod (15) are all fixed and are provided with slider (17), slider (17) and slide rail (18) sliding connection.
3. An SMA-type radio frequency coaxial connector according to claim 1, wherein: one side of backshell (3) is provided with protecting crust (19), the inside of protecting crust (19) is provided with the internal thread, the outside of backshell (3) is provided with the external screw thread.
4. An SMA-type radio frequency coaxial connector according to claim 3, wherein: one side of the protective shell (19) is provided with a threading hole (20) in a penetrating way, and a protective pad (21) is arranged in the threading hole (20).
5. An SMA-type radio frequency coaxial connector according to claim 1, wherein: and a dustproof cover (22) is arranged on one side of the front shell (2).
6. An SMA-type radio frequency coaxial connector according to claim 1, wherein: the structure phase-match of spread groove (6) and sinle silk (11), the structure phase-match of mounting groove (8) and cable (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056506.2U CN216055344U (en) | 2021-08-30 | 2021-08-30 | SMA type radio frequency coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122056506.2U CN216055344U (en) | 2021-08-30 | 2021-08-30 | SMA type radio frequency coaxial connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216055344U true CN216055344U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122056506.2U Active CN216055344U (en) | 2021-08-30 | 2021-08-30 | SMA type radio frequency coaxial connector |
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| Country | Link |
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| CN (1) | CN216055344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505298A (en) * | 2023-06-28 | 2023-07-28 | 广州森弘信息科技有限公司 | Coaxial cable connection structure and use method |
-
2021
- 2021-08-30 CN CN202122056506.2U patent/CN216055344U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116505298A (en) * | 2023-06-28 | 2023-07-28 | 广州森弘信息科技有限公司 | Coaxial cable connection structure and use method |
| CN116505298B (en) * | 2023-06-28 | 2024-01-09 | 深圳市赛鸿安电线电缆有限公司 | Coaxial cable connection structure and use method |
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