A radio frequency connector anti-loose locking structure

Abstract

The utility model discloses a kind of radio frequency connector anti-loosening locking structure, including locking plug and locking socket, respectively installed in socket end and plug end outer wall, both are equipped with locking groove and locking structure cooperation;Locking plug is composed of two groups of symmetrical semicircular locking blocks, through bolt assembly reverse movement compression connection end, locking socket annularly wraps plug end and is equipped with positioning groove;Locking plug and locking socket inside are equipped with fixed strip matching locking groove, the length of screw rod of bolt assembly exceeds locking plate spacing, locking nut is embedded in positioning groove and is prevented from loosening, limiting block avoids over-tightening;Plug and positioning groove mechanical interlock enhance pullout resistance, fixed strip up and down stagger constraint prevents radial swing, symmetrical locking block design evenly distributed pressure, extension block increases contact area and disperses tension, overall structure is compact and reliable, applicable to high vibration environment.

Description

Technical Field

[0001] This utility model specifically relates to a locking structure for preventing loosening of radio frequency connectors. Background Technology

[0002] Radio frequency (RF) connectors are precision electronic components used to transmit high-frequency signals, typically ranging from hundreds of MHz to tens of GHz. They are widely used in communication equipment, aerospace, radar systems, medical devices, and consumer electronics. Their core function is to provide a stable electrical connection, ensuring low-loss, high-fidelity, and interference-resistant signal transmission. Common RF connector types include SMA, BNC, N-type, and TNC, and their structure generally consists of a center conductor, insulating dielectric, outer conductor, and locking mechanism.

[0003] In practical use, most RF connectors use a threaded locking method, which provides mechanical fixation through the meshing of internal and external threads. Under long-term vibration, the threads may gradually loosen due to slight displacement, resulting in increased contact resistance, increased signal reflection loss, and even instantaneous circuit breakage. Loosening of RF connectors will not only cause performance degradation such as signal attenuation and phase distortion, but may also cause equipment downtime and increased maintenance costs.

[0004] Therefore, it is necessary to invent a locking structure to prevent loosening of 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-loosening locking structure for radio frequency connectors, which can further enhance the locking of radio frequency connectors.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a radio frequency connector anti-loosening locking structure, comprising a locking plug and a locking socket respectively installed on the outer wall of the socket end and the plug end;

[0009] Both the socket end and the plug end are provided with locking grooves on their outer walls, and the locking grooves cooperate with the locking plug and the locking socket;

[0010] The locking plug includes two sets of locking blocks that wrap around both sides of the outer wall of the socket end. The two sets of locking blocks move in opposite directions through a bolt assembly and press the connected socket end and plug end together.

[0011] The locking socket is annularly wrapped around the outer side of the locking groove on the outer wall of the plug end, and the locking socket has positioning grooves on both sides;

[0012] Both the locking plug and the locking socket have a fixing strip on their inner sides that matches the locking groove.

[0013] Preferably, the two sets of locking blocks are arranged symmetrically on both sides of the outer wall of the socket end. The locking blocks are semi-circular with locking plates extending from both sides. Each locking plate is provided with a socket hole. An installation plate extends outward from the outer side of the arc of the locking block. A plug is connected to the bottom of the installation plate. The plug is connected to the positioning groove. The bolt assembly is installed in the socket hole, and the two sets of bolt assemblies are installed in the same direction.

[0014] Preferably, the bolt assembly includes a screw, the end of which is connected to a knob, a limiting block is provided on the screw below the knob, and a locking nut is provided below the limiting block. The locking nut is located on the opposite side of the insertion hole, and a positioning groove is recessed inward on the outer side of the insertion hole at this location.

[0015] Preferably, the overall length of the screw is at least greater than the distance between the two sets of locking plates on opposite sides, and the locking nut is disposed in the positioning groove.

[0016] Preferably, the bottom extension length of the mounting plate exceeds the bottom of the locking block and is flush with the lowest surface of the insert block. The bottom of the insert block is circular, the positioning groove matches its shape, and the locking socket at the positioning groove is provided with an extension block, with the positioning groove placed on the extension block.

[0017] Preferably, the overall dimensions of the two sets of locking blocks of the locking plug are the same as the overall dimensions of the locking socket, and the fixing strips are respectively disposed on the upper inner side of the locking blocks and the lower inner side of the locking socket.

[0018] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:

[0019] 1. The present invention has two sets of semi-circular locking blocks symmetrically distributed on both sides of the socket end. They move in opposite directions through the bolt assembly to form a bidirectional clamping force, which can evenly distribute the locking pressure and avoid skewing or loosening caused by unilateral force.

[0020] 2. The length of the screw in this utility model exceeds the spacing between the locking plates to ensure sufficient adjustment margin; the locking nut is embedded in the positioning groove to prevent the nut from rotating and loosening, and the limiting block further restricts the displacement of the screw to avoid over-tightening and damage to the structure;

[0021] 3. The bottom circle of the plug block matches the shape of the positioning groove. After being inserted, it forms a mechanical interlock. The extension block of the locking socket increases the contact area and disperses the tensile force. The fixing strip on the upper inner side of the locking block and the fixing strip on the lower inner side of the locking socket are respectively inserted into the locking groove to form an alternating constraint, which restricts the radial sway of the connector. 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 showing the disassembled structure of the socket end and plug end of this utility model;

[0025] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the disassembled structure of the locking plug and locking socket of this utility model. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the disassembled structure of the locking plug and locking socket of this utility model. Figure 2 .

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Socket end; 2. Plug end; 3. Locking plug; 31. Locking block; 32. Locking plate; 33. Socket; 34. Mounting plate; 35. Insert block; 36. Groove; 4. Locking socket; 41. Positioning groove; 42. Extension block; 5. Locking groove; 6. Bolt assembly; 61. Screw; 62. Knob; 63. Limiting block; 64. Locking nut; 7. Fixing strip. Detailed Implementation

[0030] 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.

[0031] This utility model provides, for example Figure 1-5 The radio frequency connector anti-loosening locking structure shown includes a locking plug 3 and a locking socket 4 respectively installed on the outer wall of the socket end 1 and the plug end 2;

[0032] Specifically, locking grooves 5 are provided on the outer walls of both the socket end 1 and the plug end 2, and the locking grooves 5 cooperate with the locking plug 3 and the locking socket 4;

[0033] Specifically, the locking plug 3 includes two sets of locking blocks 31 wrapped around the outer wall of the socket end 1. The two sets of locking blocks 31 move in opposite directions through the bolt assembly 6 and press the connected socket end 1 and plug end 2 together.

[0034] Specifically, the locking socket 4 is a ring that wraps around the outer side of the locking groove 5 on the outer wall of the plug end 2, and the locking socket 4 has positioning grooves 41 on both sides;

[0035] Specifically, both the locking plug 3 and the locking socket 4 have a fixing strip 7 that matches the locking groove 5 on their inner sides.

[0036] In this embodiment, two sets of semi-circular locking blocks 31 are symmetrically installed on both sides of the outer wall of the socket end 1, and connected by bolt assembly 6. A fixing strip 7 is provided on the inner side of the locking block 31, which fits into the locking groove 5 on the outer wall of the socket end. An annular locking socket 4 is fitted onto the outer wall of the plug end 2, and its inner fixing strip 7 matches the locking groove 5 of the plug end. Positioning grooves 41 are provided on both sides of the locking socket 4 for docking with the insertion block 35 of the locking plug 3.

[0037] Reference Figure 4-5 Two sets of locking blocks 31 are set on both sides of the outer wall of the socket end 1 and are symmetrically arranged. The locking blocks 31 are semi-circular, and locking plates 32 extend from both sides. Each locking plate 32 is provided with a socket 33. An installation plate 34 extends outward from the outer side of the arc of the locking block 31. A plug 35 is connected to the bottom of the installation plate 34. The plug 35 is connected to the positioning groove 41. The bolt assembly 6 is installed in the socket 33, and the two sets of bolt assemblies 6 are installed in the same direction.

[0038] Specifically, the bolt assembly 6 includes a screw 61, with a knob 62 connected to the end of the screw 61. A limiting block 63 is also provided on the screw 61 below the knob 62. A locking nut 64 is also provided below the limiting block 63. The locking nut 64 is located on the opposite side of the insertion hole 33, and a groove 36 is recessed inward on the outer side of the insertion hole 33.

[0039] Specifically, the overall length of the screw 61 is at least greater than the distance between the two sets of locking plates 32 on opposite sides, and the locking nut 64 is set in the groove 36.

[0040] In this embodiment, the locking block 31 has a semi-circular design, and the two side extending locking plates 32 are linked by the bolt assembly 6. The insert 35 at the bottom of the mounting plate 34 is circular and is inserted into the positioning groove 41 of the locking socket 4 to achieve axial fixation. The screw 61 of the bolt assembly 6 passes through the insertion holes 33 of the two side locking plates 32, and the two sets of locking blocks 31 are driven to move towards or in opposite directions by rotating the knob 62. The locking nut 64 is embedded in the groove 36 to prevent loosening.

[0041] Specifically, the bottom extension length of the mounting plate 34 exceeds the bottom of the locking block 31 and is flush with the lowest surface of the insert block 35. The bottom of the insert block 35 is circular, and the positioning groove 41 matches its shape. The locking socket 4 at the positioning groove 41 is provided with an extension block 42, and the positioning groove 41 is placed on the extension block 42.

[0042] Specifically, the overall dimensions of the two sets of locking blocks 31 of the locking plug 3 are the same as the overall dimensions of the locking socket 4, and the fixing strips 7 are respectively set on the upper inner side of the locking block 31 and the lower inner side of the locking socket 4.

[0043] In this embodiment, before connection, the locking block 31 of the locking plug 3 is pre-installed on the outer wall of the socket end 1, and the bolt assembly 6 is in a loose state. The locking socket 4 is fixed to the outer wall of the plug end 2, ensuring that the positioning groove 41 faces outward.

[0044] Specifically, during connection and locking, first insert the plug end 2 into the socket end 1 to align the RF interface. Then rotate the knob 62, causing the screw 61 to drive the two sets of locking blocks 31 to tighten towards the center, pressing the outer walls of the socket end and the plug end together. The insert 35 of the locking block 31 simultaneously inserts into the positioning groove 41 of the locking socket 4, achieving radial limiting. Finally, tighten the locking nut 64 into the groove 36 to prevent the bolt assembly 6 from retracting. During disassembly, rotate the knob 62 in the opposite direction to release the locking block 31. After the insert 35 disengages from the positioning groove 41, the connector can be separated.

[0045] In this embodiment, the mechanical clamping force of the bolt assembly 6 and the engagement of the insert block 35 with the positioning groove 41 work together to resist vibration or axial tension. The locking nut 64 is embedded in the groove 36 to prevent the screw 61 from loosening due to vibration.

[0046] Specifically, locking / unlocking can be completed simply by rotating knob 62, without the need for additional tools, making it suitable for frequent plugging and unplugging scenarios. The matching of the fixing bar 7 and the locking groove 5 ensures connector alignment and avoids RF signal loss. The symmetrically designed locking blocks 31 evenly distribute the clamping force, preventing deformation caused by unilateral stress.

[0047] 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-loosening locking structure, characterized in that: Includes a locking plug (3) and a locking socket (4) respectively installed on the outer wall of the socket end (1) and the plug end (2); Both the socket end (1) and the plug end (2) are provided with locking grooves (5) on their outer walls, and the locking grooves (5) cooperate with the locking plug (3) and the locking socket (4); The locking plug (3) includes two sets of locking blocks (31) wrapped around the outer wall of the socket end (1). The two sets of locking blocks (31) move in opposite directions through a bolt assembly (6) and press the connected socket end (1) and plug end (2) together. The locking socket (4) is a ring wrapped around the outside of the locking groove (5) on the outer wall of the plug end (2), and the locking socket (4) is provided with positioning grooves (41) on both sides. The inner sides of both the locking plug (3) and the locking socket (4) are provided with fixing strips (7) that match the locking groove (5).

2. The RF connector anti-loosening locking structure according to claim 1, characterized in that: Two sets of locking blocks (31) are arranged on both sides of the outer wall of the socket end (1) and are symmetrically arranged. The locking block (31) is semi-circular, with locking plates (32) extending on both sides. Each locking plate (32) is provided with a socket (33). An installation plate (34) extends outward from the outer side of the arc of the locking block (31). A plug (35) is connected to the bottom of the installation plate (34). The plug (35) is connected to the positioning groove (41). The bolt assembly (6) is installed in the socket (33), and the two sets of bolt assemblies (6) are installed in the same direction.

3. The RF connector anti-loosening locking structure according to claim 2, characterized in that: The bolt assembly (6) includes a screw (61), the end of which is connected to a knob (62). A limiting block (63) is also provided on the screw (61) below the knob (62). A locking nut (64) is also provided below the limiting block (63). The locking nut (64) is located on the opposite side of the insertion hole (33) on the other side, and a groove (36) is recessed inward on the outer side of the insertion hole (33).

4. The radio frequency connector anti-loosening locking structure according to claim 3, characterized in that: The overall length of the screw (61) is at least greater than the distance between the two sets of locking plates (32) on opposite sides, and the locking nut (64) is disposed in the groove (36).

5. The RF connector anti-loosening locking structure according to claim 2, characterized in that: The bottom extension length of the mounting plate (34) exceeds the bottom of the locking block (31) and is flush with the lowest surface of the insert (35). The bottom of the insert (35) is circular, and the positioning groove (41) matches its shape. The locking socket (4) at the positioning groove (41) is provided with an extension block (42), and the positioning groove (41) is placed on the extension block (42).

6. The RF connector anti-loosening locking structure according to claim 1, characterized in that: The overall dimensions of the two sets of locking blocks (31) of the locking plug (3) are the same as the overall dimensions of the locking socket (4), and the fixing strips (7) are respectively located on the inner upper side of the locking block (31) and the inner lower side of the locking socket (4).

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