A stable RF coaxial connector

Abstract

This utility model discloses a stable radio frequency coaxial connector, including a male connector body and a female connector body. A threaded sleeve is rotatably fitted onto the outer surface of the male connector body. Two locking holes, extending inwards, are symmetrically formed on the outer surface of the threaded sleeve at its opening. In this utility model, an integrated elastic locking rod, in conjunction with auxiliary pressure plates, achieves a single-step "screw-in lock" operation, solving the problem of cumbersome operation associated with separate locking components. The user only needs to press the pre-compressed springs on both auxiliary pressure plates simultaneously with one hand, rotate the threaded sleeve until fully engaged, and then release. The rod body automatically springs into the locking hole to complete the lock, requiring no additional maneuvering. This design seamlessly integrates the locking / unlocking action with the thread tightening process, avoiding the difficulties of multi-step collaborative operation in confined spaces. It is particularly suitable for high-frequency insertion and removal scenarios, improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency coaxial connector technology, and in particular to a radio frequency coaxial connector with stable connection. Background Technology

[0002] Radio frequency coaxial connectors, also known as RF connectors, are an important component in radio frequency / microwave signal transmission. They are mainly used to connect coaxial cables, microstrip lines, or other RF transmission lines to achieve electrical connection, isolation, or conversion between different types of transmission lines, so as to realize interconnection between devices / modules and effectively transmit radio frequency and microwave signals. They are mechatronic products that act as bridges.

[0003] RF coaxial connectors are widely used in wireless communication, broadcasting, television, radar and other fields.

[0004] A search revealed that patent CN222995991U discloses a stable radio frequency coaxial connector. Through the threaded engagement of the threaded sleeve and the connecting sleeve, and the setting of the locking component, the position of the threaded sleeve on the connecting sleeve can be locked, preventing connection failure due to rotation or movement. This ensures a more stable connection between the female and male connectors, reduces loosening of the connection due to vibration or external force, and effectively improves the stability between the female and male connectors.

[0005] However, the above-mentioned device has the following drawbacks: the locking component and the threaded sleeve are designed separately, requiring manual adjustment of the locking plate to disengage the locking hook from the locking notch during disassembly and assembly. Operation also requires simultaneous rotation of the threaded sleeve and control of both locking components, resulting in cumbersome installation steps. This is especially problematic in confined spaces or scenarios involving frequent insertion and removal, where users must repeatedly adjust the lever position, reducing assembly efficiency. Therefore, further improvements are needed. To address this, we propose a stable RF coaxial connector. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a stable radio frequency coaxial connector.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a stable radio frequency coaxial connector, comprising a male connector body and a female connector body, wherein a threaded sleeve is fitted onto the outer surface of the male connector body for limiting rotation, and two locking holes extending to the inner side are symmetrically opened on the outer surface of the threaded sleeve at the opening.

[0008] The outer surface of the connecting female head body is fixedly sleeved with an external threaded cylinder, and the external threaded cylinder matches the threaded sleeve. Two positioning grooves are symmetrically opened on one side of the outer surface of the external threaded cylinder.

[0009] Assembly blocks are inserted into the inner sides of both positioning slots. Two screws that penetrate into the positioning slots are symmetrically provided on the outer surface of the main body of the connecting female head, and the screws are threadedly connected to the assembly blocks.

[0010] Each of the two assembly blocks is fixedly connected to a housing at one end. Each of the two housings is equipped with an elastic locking rod, and the elastic locking rod matches the locking hole. Each of the movable ends of the two elastic locking rods is equipped with an auxiliary pressure plate.

[0011] Furthermore, a connecting pin is fixedly fitted on the inner side of the male connector body.

[0012] Furthermore, a connection socket is fixedly fitted on the inner side of the connector body, and the connection socket matches the connection pin.

[0013] Furthermore, two hidden grooves are symmetrically opened on the outer surface of the connecting female head body, and the screw head is located inside the hidden groove. The hidden screw head design can avoid external protrusion and prevent it from affecting the connection between the threaded sleeve and the external threaded cylinder.

[0014] Furthermore, both assembly blocks have screw holes on the screw side, and the screw holes match the screws, which facilitates the rapid installation of the assembly blocks.

[0015] Furthermore, both of the elastic locking rods include springs, and the springs are fixedly installed inside the housing. One end of the spring is fixedly connected to the rod body, and the rod body passes through the housing and is slidably connected to the housing. The rod body matches the locking hole and is fixedly connected to the auxiliary pressure plate. The spring adopts a pre-compression design, which can provide stable elastic force output.

[0016] Furthermore, each of the outer surfaces of the two housings has a through-hole extending to the inner side, and the inner walls on both sides of the through-hole slide against the outer walls on both sides of the auxiliary pressure plate. The cooperation between the through-hole and the auxiliary pressure plate limits the pressing stroke, prevents the spring from being over-compressed and failing, and guides the pressure plate to move linearly, avoiding jamming caused by skewing.

[0017] The beneficial effects of this utility model are:

[0018] 1. In use, this utility model achieves a single-step "screw-in lock" operation through the integrated elastic locking rod and auxiliary pressure plate, solving the problem of cumbersome operation of split locking components. The user only needs to press the pre-compressed springs on both auxiliary pressure plates simultaneously with one hand, rotate the threaded sleeve until fully engaged, and then release. The rod body automatically springs into the locking hole to complete the lock, requiring no additional maneuvering. This design seamlessly integrates the locking / unlocking action with the thread tightening process, avoiding the difficulties of multi-step coordinated operation in confined spaces. It is particularly suitable for high-frequency insertion and removal scenarios, improving assembly efficiency.

[0019] 2. In use, this utility model utilizes a detachable connection structure between the assembly block and the screws to create an independent module for the housing and the internal elastic locking rod. When components are worn or damaged, the housing assembly can be replaced individually simply by removing the screws, eliminating the need to discard the entire connector. The insertion and engagement of the positioning groove and the assembly block further ensures accurate alignment during replacement, reducing maintenance costs and maintaining the original locking stability after replacement. Attached Figure Description

[0020] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the male connector body of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the main body of the connector of this utility model;

[0024] Figure 4 This is a partial cross-sectional view of the main body of the connector of this utility model;

[0025] Figure 5 This is a cross-sectional view of the shell structure of this utility model.

[0026] The attached figures are labeled as follows:

[0027] 11. Connecting male head body; 12. Threaded sleeve; 13. Locking hole; 14. Connecting pin; 21. Connecting female head body; 22. External threaded cylinder; 23. Connecting insertion hole; 24. Positioning groove; 31. Auxiliary pressure plate; 32. Rod body; 33. Housing; 34. Spring; 35. Assembly block; 36. Stroke hole; 4. Screw. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-5 As shown, a stable radio frequency coaxial connector is disclosed, including a male connector body 11 and a female connector body 21. A threaded sleeve 12 is rotatably fitted onto the outer surface of the male connector body 11. An annular groove is provided on the outer surface of the male connector body 11, and the annular groove slides into the threaded sleeve 12 to achieve rotatable fitting of the threaded sleeve 12. Two locking holes 13 are symmetrically provided on the outer surface of the threaded sleeve 12 at the opening, extending to the inner side. A connecting pin 14 is fixedly fitted on the inner side of the male connector body 11. The threaded sleeve 12 is made of 304 stainless steel, and its outer surface is provided with anti-slip texture to facilitate manual rotation.

[0030] An external threaded cylinder 22 is fixedly sleeved on the outer surface of the female connector body 21, and the external threaded cylinder 22 matches the threaded sleeve 12. Two positioning grooves 24 are symmetrically opened on one side of the outer surface of the external threaded cylinder 22. A connecting insertion hole 23 is fixedly assembled on the inner side of the female connector body 21, and the connecting insertion hole 23 matches the connecting pin 14.

[0031] Assembly blocks 35 are inserted into the inner sides of the two positioning slots 24. Two screws 4 are symmetrically provided on the outer surface of the connecting female head body 21, which penetrate into the positioning slots 24. The screws 4 are threadedly connected to the assembly blocks 35. Two hidden slots are symmetrically opened on the outer surface of the connecting female head body 21. The screw heads of the screws 4 are located inside the hidden slots. The two assembly blocks 35 are provided with screw holes on one side of the screws 4. The screw holes match the screws 4.

[0032] Two assembly blocks 35 are fixedly connected to a housing 33 at one end. Both housings 33 are equipped with elastic locking rods, which match the locking holes 13. The movable ends of the two elastic locking rods are equipped with auxiliary pressure plates 31. Both elastic locking rods include springs 34, which are fixedly installed inside the housings 33. One end of the spring 34 is fixedly connected to a rod body 32, which passes through the housings 33 and is slidably connected to them. The rod body 32 matches the locking holes 13 and is fixedly connected to the auxiliary pressure plates 31. One side of the outer surface of both housings 33 is provided with a travel hole 36 that extends to the inner side. The inner walls of both sides of the travel hole 36 slide against the outer walls of both sides of the auxiliary pressure plates 31. The springs 34 are stainless steel compression springs that maintain a preload of 3N after installation.

[0033] Working principle: The user presses the auxiliary pressure plates 31 on both sides in advance to compress the spring 34 of the rod body 32 and keep it in a retracted state to avoid interfering with the rotation of the threaded sleeve 12. At the same time, the connecting female head body 21 is restrained. Then the threaded sleeve 12 is engaged with the external threaded cylinder 22. The user rotates the threaded sleeve 12 to screw it in along the thread. During this process, the connecting pin 14 is aligned with the connecting hole 23 and inserted.

[0034] When the threaded sleeve 12 is rotated into position (reaching the preset torque or fully tightened), the locking hole 13 is aligned with the rod body 32. When the user releases the auxiliary pressure plate 31, the elastic force of the spring 34 pushes the rod body 32 to pop out automatically and lock into the locking hole 13, forming a rigid lock.

[0035] At this point, the threaded sleeve 12 cannot rotate, ensuring a secure connection and preventing loosening caused by vibration or external force.

[0036] When disassembly is required, the user simultaneously presses the auxiliary pressure plates 31 on both sides to disengage the rod body 32 from the locking hole 13 and release the lock. Then, by rotating the threaded sleeve 12 in the opposite direction, the male connector body 11 and the female connector body 21 can be easily separated.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A connection-stable radio frequency coaxial connector comprising a connection male head body (1 1) and a connection female head body (21), characterized in that: The outer surface of the connecting male body (11) is fitted with a threaded sleeve (12) for limiting rotation. The outer surface of the threaded sleeve (12) has two locking holes (13) that extend to the inside at the opening. The outer surface of the connecting female head body (21) is fixedly sleeved with an external threaded cylinder (22), and the external threaded cylinder (22) matches the threaded sleeve (12). Two positioning grooves (24) are symmetrically opened on one side of the outer surface of the external threaded cylinder (22). Assembly blocks (35) are inserted into the inner sides of the two positioning slots (24). Two screws (4) that penetrate into the positioning slots (24) are symmetrically provided on the outer surface of the connecting female body (21). The screws (4) are threadedly connected to the assembly blocks (35). One end of each of the two assembly blocks (35) is fixedly connected to a housing (33), and each of the two housings (33) is equipped with an elastic locking rod, which matches the locking hole (13). An auxiliary pressure plate (31) is installed on the movable end of each of the two elastic locking rods.

2. A connection-stable radio frequency coaxial connector according to claim 1, characterized in that: The inner side of the male connector body (11) is fixedly fitted with a connecting pin (14).

3. A connection-stable radio frequency coaxial connector according to claim 2, characterized in that: The inner side of the connector body (21) is fixedly fitted with a connector hole (23), and the connector hole (23) matches the connector pin (14).

4. A connection-stable radio frequency coaxial connector according to claim 1, characterized in that: The outer surface of the connecting head body (21) has two symmetrical hidden grooves, and the screw head of the screw (4) is located inside the hidden groove.

5. A connection-stable radio frequency coaxial connector according to claim 1, characterized in that: Both assembly blocks (35) are provided with screw holes on the side of the screw (4), and the screw holes match the screw (4).

6. A connection-stable radio frequency coaxial connector according to claim 1, characterized in that: Both of the elastic locking rods include a spring (34), and the spring (34) is fixedly installed inside the housing (33). One end of the spring (34) is fixedly connected to a rod body (32), and the rod body (32) is provided through the housing (33) and slidably connected to the housing (33). The rod body (32) matches the locking hole (13) and is fixedly connected to the auxiliary pressure plate (31).

7. A connection-stable radio frequency coaxial connector according to claim 1, characterized in that: Both of the outer surfaces of the two housings (33) are provided with a travel hole (36) that extends to the inner side, and the inner walls on both sides of the travel hole (36) slide against the outer walls on both sides of the auxiliary pressure plate (31).

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