TNC to SSMP radio frequency adapter with external sleeve locking structure

The design of the external screw locking structure solves the loosening problem of traditional TNC to SSMP RF adapters under vibration and shock environments, achieving stable signal transmission and accurate connection, and improving the performance of the equipment.

CN224305121UActive Publication Date: 2026-05-29DONGGUAN HOUHE PRECISION ELECTRONICS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN HOUHE PRECISION ELECTRONICS CO LTD
Filing Date
2025-07-21
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional TNC to SSMP RF adapters are prone to loosening in complex environments such as vibration and shock, leading to unstable signal transmission. Improper operation can also cause incorrect insertion, reducing the effectiveness and practicality of use.

Method used

The external threaded locking structure includes components such as insulators, cylindrical housings, connecting nuts, and snap rings. Through threaded locking and engagement design, it ensures connection stability and accuracy, and avoids loosening and misinsertion.

Benefits of technology

It improves the stability of radio frequency signal transmission and the accuracy of connection, reduces the risk of loosening and detachment, and enhances the effectiveness and practicality of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of adapter, disclose a TNC is changed SSMP radio frequency adapter with outer screw bush lock structure, including adapter assembly, still including shell and connecting screw cap, one end of adapter assembly is fixedly provided with insulator, the shell fixedly provided in the outer surface of insulator, the connecting screw cap movably provided in the outer surface of shell, the adapter assembly includes adapter body, one end of adapter body is arranged as SSMP interface, the other end of adapter body is arranged as TNC interface, the utility model solves the SSMP end of traditional adapter and adopts push-in type connection mode, under some vibration, impact and so on complex working environment, easy to appear loose, lead to signal transmission unstable even interrupt, influence the normal operation of equipment, simultaneously, the traditional push-in type connection is accurate to the accuracy requirement of connection, and improper operation can easily cause misplug, reduced the use effect and the practicality of adapter problem.
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Description

Technical Field

[0001] This utility model relates to the field of adapter technology, specifically a TNC to SSMP radio frequency adapter with an external screw sleeve locking structure. Background Technology

[0002] RF adapters are core interconnect components in RF coaxial systems. Essentially, they enable signal transition and matching between RF connectors of different types, specifications, or interface standards. As a "bridge" in the RF signal transmission link, they are widely used in fields such as communications, radar, electronic countermeasures, and test and measurement, directly affecting the signal integrity, transmission efficiency, and reliability of the entire system.

[0003] Traditional adapters use a push-in connection at the SSMP end, which can easily become loose in complex working environments such as vibration and impact, leading to unstable or even interrupted signal transmission and affecting the normal operation of the equipment. At the same time, the traditional push-in connection requires high accuracy, and improper operation can easily cause mis-insertion, reducing the effectiveness and practicality of the adapter. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a TNC to SSMP RF adapter with an external screw locking structure. This solves the problem that the SSMP end of the traditional adapter uses a push-in connection method, which is prone to loosening in complex working environments such as vibration and impact, leading to unstable or even interrupted signal transmission and affecting the normal operation of the equipment. At the same time, the traditional push-in connection requires high accuracy, and improper operation can easily cause misinsertion, reducing the effectiveness and practicality of the adapter.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a TNC to SSMP RF adapter with an external screw locking structure, comprising an adapter assembly, a housing, and a connecting nut.

[0006] An adapter assembly, wherein an insulator is fixedly sleeved at one end of the adapter assembly;

[0007] The outer casing is fixedly fitted onto the outer surface of the insulator;

[0008] A connecting nut is movably fitted onto the outer surface of the housing.

[0009] In a preferred embodiment, the adapter assembly includes an adapter body, one end of which is configured as an SSMP interface and the other end of which is configured as a TNC interface.

[0010] In a preferred embodiment, an insulator is fixedly sleeved on the outer surface of the SSMP interface.

[0011] In a preferred embodiment, the outer shell includes a cylindrical shell, which is fixedly sleeved on the outer surface of the insulator, and an injection chamber is provided at one end of the cylindrical shell near the center.

[0012] In a preferred embodiment, a first groove is formed at one end of the cylindrical shell near its outer surface, and a second groove is formed at the other end of the cylindrical shell near its outer surface. Three injection holes are formed at equal intervals along the circumferential direction on the outer surface of the first groove.

[0013] In a preferred embodiment, the connecting nut includes a nut housing, which is movably fitted onto the outer surface of the cylindrical housing. The outer surface of the nut housing has an anti-slip groove, and the inner wall of the nut housing has an internal thread groove near one end. A retaining ring is fixedly provided on the inner wall of the nut housing near the center, and an annular engagement groove is provided on the inner wall of the nut housing near the other end.

[0014] In a preferred embodiment, a retaining spring is provided inside the annular engaging groove. Beneficial effects

[0015] This invention provides a TNC to SSMP RF adapter with an external screw-type locking structure. Compared with the prior art, it has the following advantages:

[0016] In this invention, the insulator isolates the SSMP interface from the cylindrical housing, ensuring stable connection of the adapter assembly and preventing short circuits or leakage. The nut housing and retaining ring allow for quick assembly of the connecting nut and housing. The annular locking groove and snap ring engagement enable a rotatable connection between the connecting nut and housing. Rotating the connecting nut allows for quick connection of the SSMP interface to the device's interface. The threaded locking structure effectively resists vibration and impact, significantly reducing the risk of loosening or detachment during use, ensuring stable RF signal transmission, and providing guidance and positioning. This makes it easier for operators to align components during connection, reducing the possibility of mis-insertion and improving the adapter's effectiveness and practicality. Attached Figure Description

[0017] Figure 1 This utility model presents a front-view three-dimensional structural diagram of a TNC to SSMP RF adapter with an external screw sleeve locking structure;

[0018] Figure 2 This utility model provides a cross-sectional perspective view of a TNC to SSMP radio frequency adapter with an external screw sleeve locking structure.

[0019] Figure 3 This utility model provides a three-dimensional structural diagram of the adapter assembly and insulator part of a TNC to SSMP RF adapter with an external screw sleeve locking structure;

[0020] Figure 4 This utility model provides a three-dimensional structural diagram of the outer shell of a TNC to SSMP RF adapter with an external screw sleeve locking structure.

[0021] Figure 5 This utility model presents a three-dimensional structural diagram of the connecting nut and retaining ring of a TNC to SSMP RF adapter with an external screw sleeve locking structure.

[0022] In the diagram: 1. Adapter assembly; 11. Adapter body; 12. SSMP interface; 13. TNC interface; 2. Insulator; 3. Housing; 31. Cylindrical housing; 32. Glue injection chamber; 33. First slide groove; 34. Second slide groove; 35. Glue injection hole; 4. Connecting nut; 41. Nut housing; 42. Anti-slip groove; 43. Internal thread groove; 44. Retaining ring; 45. Annular engagement groove; 5. Snap ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figure 1-4 A TNC to SSMP RF adapter with an external screw locking structure includes an adapter assembly 1, a housing 3, and a connecting nut 4.

[0026] Adapter assembly 1, with an insulator 2 fixedly sleeved at one end;

[0027] The outer casing 3 is fixedly fitted onto the outer surface of the insulator 2;

[0028] Connecting nut 4 is movably fitted onto the outer surface of housing 3;

[0029] The adapter assembly 1 includes an adapter body 11, one end of which is configured as an SSMP interface 12 and the other end as a TNC interface 13. An insulator 2 is fixedly sleeved on the outer surface of the SSMP interface 12. The outer shell 3 includes a cylindrical shell 31, which is fixedly sleeved on the outer surface of the insulator 2. A glue injection chamber 32 is provided near the center of one end of the cylindrical shell 31. A first groove 33 is provided near the outer surface of one end of the cylindrical shell 31. A second groove 34 is provided near the outer surface of the other end of the cylindrical shell 31. Three glue injection holes 35 are equidistantly provided along the circumferential direction on the outer surface of the first groove 33.

[0030] In this embodiment, the SSMP interface 12 and TNC interface 13 enable the adapter body 11 to complete the TNC to SSMP connection conversion. The insulator 2 isolates the interface end of the adapter assembly 1 from the housing 3, ensuring a more stable connection when the interface end of the adapter assembly 1 is connected and avoiding the possibility of short circuit or leakage. The glue injection tank 32 allows the cylindrical housing 31 to be fixedly fitted onto the outer surface of the insulator 2. The second groove 34 allows the nut housing 41 to be fitted onto the outer surface of the cylindrical housing 31. The first groove 33 provides space for the retaining spring 5 to slide inward. After fixing, glue can be injected into the glue injection tank 32 through the glue injection hole 35, making the connection between the cylindrical housing 31 and the insulator 2 more stable.

[0031] Example 2:

[0032] Please see Figure 1-5 This embodiment provides a technical solution based on embodiment one: the connecting nut 4 includes a nut housing 41, the nut housing 41 is movably sleeved on the outer surface of the cylindrical housing 31, the outer surface of the nut housing 41 is provided with an anti-slip groove 42, the inner surface wall of the nut housing 41 is provided with an internal thread groove 43 near one end, a retaining ring 44 is fixedly provided on the inner surface wall of the nut housing 41 near the center, and an annular engaging groove 45 is provided on the inner surface wall of the nut housing 41 near the other end, and a retaining spring 5 is engaged inside the annular engaging groove 45;

[0033] In this embodiment, when the nut housing 41 is fitted onto the second sliding groove 34 at one end of the cylindrical housing 31, the retaining ring 44 limits the engagement of the annular locking groove 45 with the first sliding groove 33. Then, by pressing the two ends of the retaining spring 5 inward, the retaining spring 5 is pushed towards the inside of the first sliding groove 33. When the first sliding groove 33 slides to the annular locking groove 45, the two ends of the retaining spring 5 quickly unfold outward and engage with the annular locking groove 45, thus locking the nut housing 41 and the cylindrical housing 31 together and preventing them from falling off. They can only be rotated. The distance between the internal thread groove 43 and the second sliding groove 34 allows the adapter to be connected to the equipment. The anti-slip groove 42 allows the operator to easily rotate the nut housing 41 for disassembly or installation. The internal thread groove 43 makes the connection process more stable, greatly reducing the risk of the adapter loosening or falling off during use and ensuring the stability of radio frequency signal transmission.

[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0035] When installing the adapter, the insulator 2 needs to be fixedly sleeved on the outer surface of the SSMP interface 12 first, and then the cylindrical housing 31 is sleeved on the outer surface of the insulator 2. After the sleeve is completed, glue can be injected into the glue injection chamber 32 through the glue injection hole 35, so that the connection between the cylindrical housing 31 and the insulator 2 is more stable. The setting of the insulator 2 isolates the SSMP interface 12 from the cylindrical housing 31, which not only ensures that the interface end of the adapter assembly 1 is connected more stably, but also avoids the possibility of short circuit or leakage.

[0036] By opening the second slide groove 34, the nut housing 41 can be fitted onto the outer surface of the first slide groove 33. The limiting setting of the glue injection chamber 32 ensures that the annular engagement groove 45 is relatively fitted with the first slide groove 33. By engaging the snap ring 5 with the annular engagement groove 45, the nut housing 41 and the cylindrical housing 31 are engaged and limited, allowing only rotation. Through the thread setting of the internal thread groove 43, the operator can drive the nut housing 41 to rotate through the anti-slip groove 42, thereby connecting the SSMP interface 12 of the adapter to the equipment. Through the guiding and positioning effect of the nut housing 41 and the retaining ring 44, the operator can more easily align the parts during connection, reduce the possibility of mis-insertion, and improve the accuracy and efficiency of the connection operation.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A TNC to SSMP RF adapter with an external screw locking structure, comprising an adapter assembly (1), a housing (3), and a connecting nut (4), characterized in that: Adapter assembly (1), one end of which is fixedly fitted with an insulator (2); The outer casing (3) is fixedly fitted onto the outer surface of the insulator (2); Connecting nut (4), which is movably fitted on the outer surface of the outer shell (3).

2. The TNC to SSMP RF adapter with an external screw sleeve locking structure according to claim 1, characterized in that: The adapter assembly (1) includes an adapter body (11), one end of which is configured as an SSMP interface (12), and the other end of which is configured as a TNC interface (13).

3. A TNC to SSMP RF adapter with an external screw-sleeve locking structure according to claim 2, characterized in that: An insulator (2) is fixedly sleeved on the outer surface of the SSMP interface (12).

4. A TNC to SSMP RF adapter with an external screw sleeve locking structure according to claim 1, characterized in that: The outer shell (3) includes a cylindrical shell (31), which is fixedly sleeved on the outer surface of the insulator (2), and an injection chamber (32) is provided at one end of the cylindrical shell (31) near the center.

5. A TNC to SSMP RF adapter with an external screw sleeve locking structure according to claim 4, characterized in that: One end of the cylindrical shell (31) is provided with a first groove (33) near the outer surface, and the other end of the cylindrical shell (31) is provided with a second groove (34) near the outer surface. The outer surface of the first groove (33) is provided with three glue injection holes (35) at equal intervals along the circumferential direction.

6. A TNC to SSMP RF adapter with an external screw sleeve locking structure according to claim 1, characterized in that: The connecting nut (4) includes a nut housing (41), which is movably fitted on the outer surface of the cylindrical housing (31). The outer surface of the nut housing (41) is provided with an anti-slip groove (42). The inner wall of the nut housing (41) is provided with an internal thread groove (43) near one end. A retaining ring (44) is fixedly provided on the inner wall of the nut housing (41) near the center. An annular locking groove (45) is provided on the inner wall of the nut housing (41) near the other end.

7. A TNC to SSMP RF adapter with an external screw sleeve locking structure according to claim 6, characterized in that: The annular locking groove (45) is internally fitted with a retaining spring (5).