Anti-drop assembly of radio frequency connector

By introducing a mechanical locking structure for locking components and connection components into the RF connector, the problem of difficulty in controlling the tightness of traditional RF connectors is solved, achieving a stable connection under external force or vibration, and ensuring the stability of signal transmission and electrical performance.

CN223625348UActive Publication Date: 2025-12-02ZHENJIANG BROS ELECTRONICS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202423145591.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-02
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

Traditional RF connectors are difficult to tighten precisely during installation, which can lead to loosening, detachment, or damage to the connector, affecting electrical performance and reducing reliability.

Method used

The mechanical locking structure, which employs locking and connecting components, ensures a secure connection between the plug and socket ends under external force or vibration through the matching of the locking block and the slot, and the elasticity of the compression spring. It is simple and easy to operate.

Benefits of technology

It effectively prevents RF connectors from falling off under external force or vibration, ensuring the stability of signal transmission and the robustness of electrical connections, and improving installation and disassembly efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223625348U_ABST
    Figure CN223625348U_ABST
Patent Text Reader

Abstract

The utility model discloses an anti-drop assembly of a radio frequency connector, which comprises a locking assembly outside a plug end and a connecting assembly outside a socket end. A butt joint sleeve is arranged outside the plug end, a pin is arranged in the center of the plug end, and a first thread is arranged outside the butt joint sleeve. A thread II is arranged outside the socket end; the locking assembly comprises a fixing sleeve, a plurality of moving grooves are formed in the fixing sleeve, locking blocks are installed in the moving grooves, and moving rings are connected to the outer sides of the locking blocks; the connecting assembly comprises a connecting nut, a clamping groove is formed in the connecting nut, and a third thread is arranged on the inner side of the connecting nut. According to the utility model, the locking block in the locking assembly is matched with the clamping groove in the connecting assembly to form a mechanical locking structure, so that the plug end and the socket end are prevented from being accidentally separated when being pulled or vibrated by an external force; the connection and separation of the plug end and the socket end can be realized by rotating the connection nut, the operation mode is simple and easy, and the efficiency of installation and disassembly is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model specifically relates to an anti-disconnection component for radio frequency connectors. Background Technology

[0002] An RF connector is an electromechanical component used to connect RF circuits. It is primarily used to transmit RF signals between RF devices, ensuring the integrity and stability of the signal during transmission. It mainly consists of a center conductor, an insulator, and an outer conductor, and includes types such as SMA connectors, BNC connectors, and N-type connectors. It is widely used in communications, measurement and testing, and other fields.

[0003] Traditional RF connectors mostly use threaded connections, and the tightness is difficult to control precisely during actual installation. If tightened too loosely, they are prone to loosening and falling off under vibration or slight external force; if tightened too much, the threads or internal structure of the connector may be damaged, affecting electrical performance. Furthermore, the reliability of the threaded connection will gradually decrease with the number of uses.

[0004] Therefore, it is necessary to invent an anti-disconnection component for radio frequency connectors to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes an anti-detachment component for radio frequency connectors, which can prevent radio frequency connectors from falling off and enhance electrical connectivity.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an anti-disengagement component for an RF connector, comprising a locking component outside the plug end and a connecting component outside the socket end;

[0009] The plug end is provided with a mating sleeve on the outside and a pin in the center inside. The mating sleeve is provided with a thread on the outside.

[0010] The socket end is provided with a second thread, and the connecting component is installed on the second thread;

[0011] The locking component is fixed to the outside of the mating sleeve and located below the thread. The locking component includes a fixed sleeve with multiple movable slots. Locking blocks are installed in the movable slots, and movable rings are connected to the outside of the multiple locking blocks.

[0012] The connecting assembly includes a connecting nut installed on the outside of the second thread, the connecting nut having multiple slots that match the locking block, and the connecting nut having a third thread on its inner side.

[0013] Preferably, the inner walls on both sides of the movable groove are provided with positioning grooves, and the bottom of the movable groove is also provided with a fixing groove. The locking block is provided with positioning blocks on both sides that match the positioning grooves, and a connecting block is provided at the bottom. Multiple compression springs are provided between the connecting block and the bottom of the fixing groove. The movable ring is fixed to the outside of the multiple locking blocks and moves up and down outside the docking sleeve.

[0014] Preferably, the inner side of the upper half of the locking block is set as an inclined surface, and the upper cross-sectional area is smaller than the lower cross-sectional area. The overall length of the locking block does not exceed the length of the moving groove, and the maximum length extending out of the moving groove matches the length of the slot.

[0015] Preferably, the plug end is inserted inside the socket end, and the top of the mating sleeve is mated with the end of the socket end.

[0016] Preferably, the length of the second thread is such that the connecting nut is fully retracted outside the socket end, and the end does not exceed the top of the socket end; the length of the first thread is such that the connecting nut is rotated to engage with the slot and the moving slot; and the thread directions of the first thread and the second thread are matched.

[0017] Preferably, the third thread matches the first thread and the second thread.

[0018] Preferably, the outer surface of the movable ring is provided with multiple anti-slip textures.

[0019] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:

[0020] 1. This utility model forms a mechanical locking structure by matching the locking block in the locking component with the slot in the connecting component, which prevents the plug end and the socket end from accidentally separating when subjected to external force pulling or vibration, ensuring a stable connection even under vibration. The compression spring gives the locking block a certain elastic pressure when it is inserted into the slot, which can further enhance the locking effect and make it difficult for the locking block to come out of the slot.

[0021] 2. This utility model can connect and disconnect the plug end and the socket end by rotating the connecting nut. The operation is simple and easy, and no special tools are required, which improves the efficiency of installation and disassembly. The matching length of each thread ensures that the connecting nut has sufficient stroke during rotation, which can not only ensure the firmness of the connection, but also facilitate operation and prevent the nut from being under-rotated or over-rotated. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall connection structure of this utility model;

[0025] Figure 3 This is a schematic diagram showing the overall structure of this utility model broken down.

[0026] Figure 4 This is a schematic diagram of the locking component structure of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Plug end; 11. Connecting sleeve; 12. Pin; 13. Thread one; 2. Locking assembly; 21. Fixing sleeve; 22. Moving groove; 23. Locking block; 24. Moving ring; 241. Anti-slip texture; 25. Positioning groove; 26. Fixing groove; 27. Positioning block; 28. Connecting block; 29. ​​Compression spring; 3. Socket end; 31. Thread two; 4. Connecting assembly; 41. Connecting nut; 42. Slot; 43. Thread three. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] This utility model provides, for example Figure 1-4 The radio frequency connector anti-disengagement component shown includes a locking component 2 outside the plug end 1 and a connecting component 4 outside the socket end 3;

[0031] Specifically, the plug end 1 is provided with a mating sleeve 11 on the outside and a pin 12 in the center inside. The mating sleeve 11 is provided with a thread 13 on the outside.

[0032] Specifically, the socket end 3 is provided with a threaded second 31 on the outside, and a connecting component 4 is installed on the threaded second 31;

[0033] Specifically, the locking component 2 is fixed outside the mating sleeve 1 and located below the thread 13. The locking component 2 includes a fixed sleeve 21, which has multiple moving grooves 22. Locking blocks 23 are installed in the moving grooves 22, and the outer sides of the multiple locking blocks 23 are connected to a moving ring 24.

[0034] Specifically, the connecting assembly 4 includes a connecting nut 41 installed on the outside of the thread 2 31, the connecting nut 41 having multiple slots 42 for matching the locking block 23, and the connecting nut 41 having a thread 3 43 on its inner side.

[0035] In this embodiment, the fixing sleeve 21 is fixed to the outside of the mating sleeve 11 of the plug end 1, ensuring that it is located below the thread 13. Locking blocks 23 are installed in multiple movable slots 22 on the fixing sleeve 21, such that the positioning blocks 27 on both sides of the locking block 23 are correspondingly embedded in the positioning slots 25 on the inner walls of both sides of the movable slot 22. The connecting block 28 at the bottom is placed in the fixing slot 26 at the bottom of the movable slot 22, and multiple compression springs 29 are installed between the connecting block 28 and the bottom of the fixing slot 26. The movable ring 24 is fixed to the outside of the multiple locking blocks 23, allowing the movable ring 24 to move up and down outside the mating sleeve 11.

[0036] Specifically, the connecting nut 41 is installed on the second thread 31 on the outside of the socket end 3, and the third thread 43 on the inside of the connecting nut 41 matches the second thread 31, so that the connecting nut 41 can rotate and move on the second thread 31.

[0037] Reference Figure 4 The inner walls on both sides of the movable groove 22 are provided with positioning grooves 25, and the bottom of the movable groove 22 is also provided with a fixing groove 26. The locking block 23 is provided with positioning blocks 27 on both sides matching the positioning grooves 25, and a connecting block 28 is provided at the bottom. Multiple compression springs 29 are provided between the connecting block 28 and the bottom of the fixing groove 26. The movable ring 24 is fixed to the outside of the multiple locking blocks 23 and moves up and down outside the docking sleeve 11.

[0038] Specifically, the inner side of the upper half of the locking block 23 is set as an inclined surface, and the cross-sectional area of ​​the upper part is smaller than that of the lower part. The overall length of the locking block 23 does not exceed the length of the moving groove 22, and the maximum length of the block extending out of the moving groove 22 matches the length of the slot 42.

[0039] In this embodiment, the connection between the plug end 1 and the socket end 3 is achieved by inserting the plug end 1 into the socket end 3, so that the top of the mating sleeve 11 mates with the end of the socket end 3, and at the same time, the pin 12 in the center of the plug end 1 is aligned and connected with the corresponding interface inside the socket end 3.

[0040] Specifically, the connecting nut 41 is rotated so that it moves along the thread 31 of the socket end 3 toward the plug end 1. Since the thread direction of the thread 13 matches that of the thread 31, and the thread 3 43 matches that of the thread 13 and the thread 31, the connecting nut 41 will gradually approach the mating sleeve 11 of the plug end 1 during the movement.

[0041] Specifically, when the connecting nut 41 rotates until the slot 42 aligns with the moving slot 22, because the inner side of the upper half of the locking block 23 is sloped and the upper cross-sectional area is smaller than the lower cross-sectional area, the continued rotation of the connecting nut 41 will cause the slot 42 to press against the slope of the locking block 23, forcing the locking block 23 to retract into the moving slot 22 against the elastic force of the compression spring 29. When the slot 42 moves to the position of the locking block 23, the locking block 23 pops out and locks into the slot 42 under the elastic force of the compression spring 29, thus achieving a locked connection between the plug end 1 and the socket end 3.

[0042] In this embodiment, the separation operation between the plug end 1 and the socket end 3 is to rotate the connecting nut 41 in the opposite direction, so that it moves away from the plug end 1 along the thread 31.

[0043] Specifically, during the movement, the groove 42 of the connecting nut 41 will squeeze the locking block 23, causing the locking block 23 to overcome the elastic force of the compression spring 29 and retract into the moving groove 22 again, thereby disengaging from the groove 42.

[0044] Specifically, once the locking block 23 is completely disengaged from the slot 42, the plug end 1 can be pulled out from inside the socket end 3 to complete the separation operation.

[0045] Reference Figure 1-3 The plug end 1 is inserted into the socket end 3, and the top of the mating sleeve 11 is mated with the end of the socket end 3.

[0046] Specifically, the length of thread 2 31 is such that the connecting nut 41 is fully retracted outside the socket end 3 and the end does not exceed the top of the socket end 3. The length of thread 1 13 is such that the connecting nut 41 is rotated to the slot 42 and the moving slot 22, and the thread direction of thread 1 13 matches that of thread 2 31.

[0047] Specifically, thread 343 is matched with thread 13 and thread 231.

[0048] Specifically, the outer surface of the movable ring 24 is provided with multiple anti-slip textures 241.

[0049] In this embodiment, the locking block 23 and the slot 42, along with the elastic force provided by the compression spring 29, ensure that the plug end 1 and the socket end 3 are securely locked together after connection. This effectively prevents accidental detachment due to external pulling, vibration, or other factors during use, ensuring the stability of the RF connection. For example, in some communication devices with high requirements for signal transmission stability, even under significant external impact or vibration, this anti-detachment component can ensure a tight connection between the plug end and the socket end, preventing signal interruption or interference.

[0050] In this embodiment, the connection and disconnection operations can be completed simply by rotating the connecting nut 41, without the need for additional tools, making the operation simple and convenient. Meanwhile, the movable ring 24 has multiple anti-slip textures 241 on its exterior, allowing the operator to grip the movable ring 24 for assistance. The anti-slip textures 241 increase the friction between the hand and the movable ring 24, facilitating operation in various environments and improving the convenience and efficiency of the operation.

[0051] In this embodiment, the positioning groove 25 in the moving groove 22 cooperates with the positioning block 27 on the locking block 23, restricting the movement direction of the locking block 23 so that it can only move up and down within the moving groove 22, thus ensuring the movement stability of the locking block 23. Simultaneously, the matching design of threads 13, 31, and 43 allows the connecting nut 41 to move smoothly during rotation, further improving the structural stability of the entire anti-detachment assembly.

[0052] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A radio frequency connector anti-disconnection component, characterized in that: Includes a locking component (2) on the outside of the plug end (1) and a connecting component (4) on the outside of the socket end (3); The plug end (1) is provided with a mating sleeve (11) on the outside and a pin (12) in the center inside. The mating sleeve (11) is provided with a thread (13) on the outside. The socket end (3) is provided with a threaded second (31) on the outside, and the connecting component (4) is installed on the threaded second (31). The locking component (2) is fixed outside the docking sleeve (11) and located below the thread (13). The locking component (2) includes a fixed sleeve (21), which has multiple moving grooves (22). Locking blocks (23) are installed in the moving grooves (22), and multiple locking blocks (23) are connected to a moving ring (24) on their outer sides. The connecting assembly (4) includes a connecting nut (41) installed on the outside of the second thread (31), the connecting nut (41) having a plurality of slots (42) that match the locking block (23), and the connecting nut (41) having a third thread (43) on its inner side.

2. The radio frequency connector anti-disconnection component according to claim 1, characterized in that: The inner walls of both sides of the movable groove (22) are provided with positioning grooves (25), and the bottom of the movable groove (22) is also provided with a fixing groove (26). The locking block (23) is provided with positioning blocks (27) on both sides matching the positioning groove (25), and a connecting block (28) is provided at the bottom. Multiple compression springs (29) are provided between the connecting block (28) and the bottom of the fixing groove (26). The movable ring (24) is fixed outside the multiple locking blocks (23) and moves up and down outside the docking sleeve (11).

3. The radio frequency connector anti-disengagement component according to claim 2, characterized in that: The upper half of the locking block (23) is set as an inclined surface, and the upper cross-sectional area is smaller than the lower cross-sectional area. The overall length of the locking block (23) does not exceed the length of the moving groove (22), and the maximum length extending out of the moving groove (22) matches the length of the card slot (42).

4. The radio frequency connector anti-disconnection component according to claim 1, characterized in that: The plug end (1) is inserted into the socket end (3), and the top of the mating sleeve (11) is mated with the end of the socket end (3).

5. The radio frequency connector anti-disconnection component according to claim 1, characterized in that: The length of the second thread (31) is such that the connecting nut (41) is completely retracted outside the socket end (3) and the end does not exceed the top of the socket end (3). The length of the first thread (13) is such that the connecting nut (41) rotates to the slot (42) and the moving slot (22) and the thread direction of the first thread (13) matches that of the second thread (31).

6. The radio frequency connector anti-disconnection component according to claim 1, characterized in that: The third thread (43) is matched with the first thread (13) and the second thread (31).

7. The radio frequency connector anti-disconnection component according to claim 1, characterized in that: The movable ring (24) has multiple anti-slip textures (241) on its outside.