Quick plug self-locking radio frequency connector

Abstract

This invention relates to the field of radio frequency connector technology and provides a quick-connect self-locking radio frequency connector, including a male and a female connector. The male connector has a radially raised band on its surface, which is composed of several radially raised protrusions along the axis of the male connector. A hook structure is provided on one side of the radially raised protrusions. A limiting structure is provided on the inner side of the female connector. A insertion / removal area is provided between two adjacent sets of limiting structures. The limiting structure has several limiting cavities along the axis of the female connector. A baffle is provided on one side of the limiting cavity. The baffle surface has a bayonet. The hook structure engages with the bayonet. This design not only provides axial tensile strength for threaded connections but also greatly reduces the rotation angle of the male connector during assembly and disassembly. This simplifies the assembly and disassembly process and reduces wear on the male and female connectors. The structural design of the hook structure and the bayonet can fix and limit the radially raised protrusions when they enter the limiting cavities. It has the characteristics of simple structure and convenient assembly and disassembly.

Description

Technical Field

[0001] This invention relates to the field of radio frequency connector technology, and more specifically to a quick-connect self-locking radio frequency connector. Background Technology

[0002] Quick-connect self-locking RF connectors are connectors used for radio frequency signal transmission, featuring quick connection and automatic locking. They are widely used in communications, military, aerospace, automotive, and other high-frequency applications.

[0003] A search revealed that CN117239491B discloses an RF connector and a base station. The RF connector includes a male connector, a female connector, and a mounting ring. During insertion of the male connector into the female connector, a locking block gradually enters the guide groove. Both the first and second drive rings can rotate. A first energy storage element between the first drive ring and the locking ring stores energy. As the locking block slides along the guide groove, the first energy storage element drives the locking ring to rotate, gradually entering the locking groove. During separation of the male and female connectors, as the mounting ring gradually moves away from the mounting groove, the second drive ring rotates. The second drive ring drives the second energy storage element to store energy, preventing the locking block from easily disengaging from the locking groove and preventing wear on the contact shaft and contact groove caused by rotation between the male and female connectors, thus ensuring the stability of the male-female connector connection.

[0004] Considering the economic efficiency and reliability of RF connectors, the RF connectors disclosed above improve connection stability through extremely complex internal structures, which not only increases the cost of use but also increases the probability of internal component failure. In addition, the excessive structure makes the RF connector more cumbersome to disassemble and assemble. Summary of the Invention

[0005] The purpose of this invention is to provide a quick-connect self-locking radio frequency connector, which aims to solve the problems existing in the current radio frequency connector.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a quick-connect self-locking radio frequency connector, comprising a male connector and a female connector, wherein both ends of the male connector are provided with contact shafts, and one end of the female connector is provided with a contact groove, wherein the contact shafts are inserted into the contact grooves, and further comprising:

[0007] A radial protrusion band is provided on the surface of the male connector. The radial protrusion band is composed of several radial protrusions along the axis of the male connector. A hook structure is provided on one side of the radial protrusion.

[0008] A limiting structure is provided on the inner side of the female head, and an insertion and removal area is provided between two adjacent sets of limiting structures. The limiting structure is provided with several limiting cavities along the axis of the female head. A baffle is provided on one side of the limiting cavity, and a bayonet is provided on the surface of the baffle. The hook structure engages with the bayonet.

[0009] As a further embodiment of the present invention, the cross-section of the radial protrusion, the limiting structure and the insertion / extraction area is fan-shaped, and the central angle of the radial protrusion and the insertion / extraction area is 60 degrees.

[0010] As a further aspect of the present invention, the longitudinal section of the radial protrusion is trapezoidal, and the radial dimensions of the plurality of radial protrusions along the male head axis gradually decrease or increase.

[0011] As a further embodiment of the present invention, a first limiting hole and a second limiting hole are respectively provided on the radial protrusion and the limiting structure surface near the male end.

[0012] As a further aspect of the present invention, the male connector has a cavity inside, and the surface of the cavity has a keyway.

[0013] As a further embodiment of the present invention, a toggle-type limiting member is provided in the cavity. The toggle-type limiting member includes a collar, a limiting pin, a return spring, and a key block. Key blocks are provided on both sides of the collar. The key blocks are slidably connected in the keyway. The limiting pin is fixedly connected to the collar. The return spring is connected between the collar and the cavity. The first limiting hole and the second limiting hole are both inserted into the limiting pin.

[0014] As a further embodiment of the present invention, the toggle-type limiting member further includes a key, the key being fixedly connected to the outside of the collar, the male end having a locking groove on its surface, and the key being slidably connected within the locking groove.

[0015] The beneficial effects of the present invention are: (1) The present application utilizes the radial protrusion with a fan-shaped cross section, the limiting structure and the mutual cooperation between the insertion and removal area, which not only has the axial tensile strength of the threaded connection, but also greatly reduces the rotation angle of the male head during disassembly and assembly, which simplifies the disassembly and assembly steps and reduces the wear of the male and female heads, and has the characteristics of simple structure and convenient disassembly and assembly.

[0016] (2) The present application utilizes a structure design that combines a hook structure with a bayonet, which not only fixes and limits the radial protrusion when it enters the limiting cavity, making it easier for the subsequent limiting pin to automatically and accurately enter the first limiting hole and the second limiting hole, but also plays a role in preventing loosening. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is an exploded view of the present invention.

[0019] Figure 3 This is a perspective view of the male head according to an embodiment of the present invention.

[0020] Figure 4 This is a first cross-sectional view of the male head according to an embodiment of the present invention.

[0021] Figure 5 This is a second cross-sectional view of the male head according to an embodiment of the present invention.

[0022] Figure 6 This is a perspective view of the female head according to an embodiment of the present invention.

[0023] Figure 7 This is a cross-sectional view of the female head according to an embodiment of the present invention.

[0024] Figure 8 This is a first cross-sectional view of the present invention.

[0025] Figure 9 This is a perspective view of the toggle-type limiting member according to an embodiment of the present invention.

[0026] Figure 10 This is a second cross-sectional view of the present invention.

[0027] Figure 11 This is a cross-sectional view of the present invention.

[0028] Reference numerals: 1-male end, 11-radial protrusion, 111-hook structure, 112-first limiting hole, 12-contact shaft, 13-locking groove, 14-cavity, 15-keyway;

[0029] 2-Female head, 21-Contact groove, 22-Plug-in / plug-out area, 23-Limiting structure, 231-Limiting cavity, 232-Baffle, 233-Second limiting hole, 234-Bayonet;

[0030] 3-Toggle type limit component, 31-Ring, 32-Limit pin, 33-Reset spring, 34-Toggle key, 35-Key block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0033] Please see Figures 1 to 11 In one embodiment of the present invention, a quick-connect self-locking radio frequency connector includes a male connector 1 and a female connector 2. Both ends of the male connector 1 are provided with contact shafts 12, and one end of the female connector 2 is provided with a contact groove 21. The contact shafts 12 are inserted into the contact groove 21. The connector further includes:

[0034] A radial protrusion 11 is provided on the surface of the male connector 1. The radial protrusion 11 is composed of several radial protrusions along the axis of the male connector 1. A hook structure 111 is provided on one side of the radial protrusion. The specific radial position of the hook structure 111 is not limited. When the diameter of the male connector 1 is large, considering the factor of saving effort, the hook structure 111 can be set close to the axis of the male connector 1.

[0035] A limiting structure 23 is provided inside the female head 2. An insertion / removal area 22 is provided between adjacent sets of limiting structures 23. The limiting structure 23 has several limiting cavities 231 along the axis of the female head 2. A baffle 232 is provided on one side of each limiting cavity 231. A bayonet 234 is provided on the surface of the baffle 232. The hook structure 111 engages with the bayonet 234. There is only one baffle 232 within a single limiting structure 23. The baffle 232 is used to connect multiple axially distributed limiting cavities 231. During installation… After holding the male head 1 and inserting the radial protrusion 11 into the insertion / removal area 22 to a certain depth, or while holding the male head 1 and inserting the radial protrusion 11 into the insertion / removal area 22, use your thumb to turn the key 34 to hide the limiting pin 32 in the first limiting hole 112. When the male head 1 contacts the end face of the female head 2, each radial protrusion will align with the corresponding limiting cavity 231. At this time, rotate the male head 60 degrees counterclockwise to rotate the radial protrusion into the limiting cavity 231. At the same time, the hook structure 111 is engaged in the bayonet 234.

[0036] Please see Figures 4 to 8 Furthermore, the cross-sections of the radial protrusion, the limiting structure 23, and the insertion / extraction area 22 are fan-shaped, and the central angles of the radial protrusion band 11 and the insertion / extraction area 22 are both 60 degrees. The radial protrusion is similar to a thread design, which can withstand strong tensile force along the axial direction.

[0037] In this embodiment of the invention, the longitudinal section of the radial protrusion is trapezoidal, and the radial dimensions of several radial protrusions extending along the contact axis 12 of the male head 1 gradually decrease. That is to say, the fan-shaped cross section of the radial protrusion at the very end is smaller than the fan-shaped cross section of the insertion and removal area 22, which facilitates the insertion of the radial protrusion into the insertion and removal area 22.

[0038] Please see Figure 3 and Figure 6 In one embodiment of the present invention, a first limiting hole 112 and a second limiting hole 233 are respectively provided on the radial protrusion and the limiting structure 23 near the end of the male head 1.

[0039] Please see Figure 3 and Figure 6 Furthermore, the male head 1 has a cavity 14 inside, and the surface of the cavity 14 has a keyway 15.

[0040] Please see Figures 1 to 11Furthermore, a toggle-type limiting member 3 is provided inside the cavity 14. The toggle-type limiting member 3 includes a collar 31, a limiting pin 32, a return spring 33, and a key block 35. Key blocks 35 are provided on both sides inside the collar 31. The key blocks 35 are slidably connected in the keyway 15. The limiting pin 32 is fixedly connected to the collar 31. The return spring 33 is connected between the collar 31 and the cavity 14. The first limiting hole 112 and the second limiting hole 233 are both inserted and connected to the limiting pin 32.

[0041] Please see Figures 1 to 11 Furthermore, the toggle-type limiting member 3 also includes a key 34, which is fixedly connected to the outside of the collar 31. The male head 1 has a locking groove 13 on its surface, and the key 34 is slidably connected in the locking groove 13.

[0042] In this embodiment of the invention, axial limiting is used to prevent relative rotation between the male head 1 and the locking groove 13. The locking groove 13 is composed of a countersunk groove and a sliding groove. The sliding groove is distributed between the countersunk groove and the cavity 14. The length of the countersunk groove is greater than the length of the key 34. The length of the key 34 is greater than the length of the sliding groove. The key 34 can always block the sliding groove and play a sealing role.

[0043] Working principle: During assembly, first hold the male connector 1 and insert the radial protrusion 11 into the insertion / removal area 22. Then, use your thumb to move the key 34 to hide the limiting pin 32 in the first limiting hole 112. When the male connector 1 contacts the end face of the female connector 2, rotate the male connector 60 degrees by hand (note that due to the limitation of the baffle 232, the actual rotation angle is less than 60 degrees, that is, the radial protrusion is located outside the limiting cavity 231) to rotate the radial protrusion into the limiting cavity 231. When you hear a "click" sound, it indicates that the hook structure 111 has engaged with the slot 234. When the lever 34 is released, the spring force of the return spring 33 drives the limit pin 32 to be precisely inserted into the first limit hole 112 and the second limit hole 233. The structure design of the hook structure 111 and the bayonet 234 not only plays the role of preventing loosening, but also plays the role of positioning the first limit hole 112 and the second limit hole 233, thereby ensuring the automatic installation of the limit pin 32. The limit pin 32 is connected to the male head 1 through the collar 31, key block 35 and keyway 15. When rotated by external force, it can further improve the anti-loosening effect and firmness.

[0044] During disassembly, first hold the male connector 1 and use your thumb to turn the key 34 to re-hide the limiting pin 32 in the first limiting hole 112. Then, rotate the male connector 1 in the opposite direction to disengage the hook structure 111 from the bayonet 234 and rotate the radial protrusion from the limiting cavity 231 to the insertion / removal area 22. Finally, release the key 34 to pull out the male connector 1. The cooperation between the radial protrusion 11 and the limiting structure 23, compared with the traditional threaded connection, not only has the axial tensile strength of the threaded connection, but also greatly reduces the rotation angle of the male connector 1, simplifying the disassembly and assembly steps.

[0045] In summary, this application utilizes the interaction between the radial protrusion with a fan-shaped cross-section, the limiting structure 23, and the insertion / removal area 22 to not only possess the axial tensile strength of a threaded connection, but also significantly reduce the rotation angle of the male connector 1 during disassembly and assembly. This simplifies the disassembly and assembly steps and reduces wear on the male connector 1 and the female connector 2, resulting in a simple structure and convenient disassembly and assembly.

[0046] This application utilizes a structural design that combines the hook structure 111 with the bayonet 234. This design not only secures the radial protrusion when it enters the limiting cavity 231, facilitating the automatic and precise entry of the limiting pin 32 into the first limiting hole 112 and the second limiting hole 233, but also prevents loosening.

[0047] This application utilizes the matching method of the limiting pin 32, collar 31, key block 35 and keyway 15 to connect with the male head 1. This not only enhances the anti-loosening effect by using the limiting pin 32, but also facilitates the control of the movement of the limiting pin 32 during disassembly and assembly, thus having the characteristics of good anti-loosening effect and easy operation.

[0048] While several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-connect self-locking radio frequency connector, comprising a male connector (1) and a female connector (2), wherein the male connector (1) has contact shafts (12) at both ends, and the female connector (2) has a contact groove (21) at one end, wherein the contact shafts (12) are inserted into the contact groove (21), characterized in that, Also includes: A radial protrusion band (11) is provided on the surface of the male connector (1). The radial protrusion band (11) is composed of a plurality of radial protrusions along the axis of the male connector (1). A hook structure (111) is provided on one side of the radial protrusion. A limiting structure (23) is provided inside the female head (2). An insertion / removal area (22) is provided between two adjacent sets of limiting structures (23). The limiting structure (23) is provided with several limiting cavities (231) along the axis of the female head (2). A baffle (232) is provided on one side of the limiting cavity (231). A bayonet (234) is provided on the surface of the baffle (232). The hook structure (111) engages with the bayonet (234). A first limiting hole (112) and a second limiting hole (233) are respectively provided on the radial protrusion near the end of the male head (1) and on the surface of the limiting structure (23). A cavity (14) is provided inside the male head (1). The cavity (14) has a keyway (15) on its surface and a toggle-type limiting member (3) inside the cavity (14). The toggle-type limiting member (3) includes a collar (31), a limiting pin (32), a return spring (33), and a key block (35). Key blocks (35) are provided on both sides inside the collar (31). The key blocks (35) are slidably connected in the keyway (15). The limiting pin (32) is fixedly connected to the collar (31). The return spring (33) is connected between the collar (31) and the cavity (14). The first limiting hole (112) and the second limiting hole (233) are both inserted into the limiting pin (32).

2. The quick-connect self-locking RF connector according to claim 1, characterized in that, The cross-section of the radial protrusion, the limiting structure (23), and the insertion / extraction area (22) is fan-shaped, and the central angle of the radial protrusion (11) and the insertion / extraction area (22) is 60 degrees.

3. A quick-connect self-locking RF connector according to claim 2, characterized in that, The longitudinal section of the radial protrusion is trapezoidal, and the radial dimensions of several radial protrusions along the axis of the male head (1) gradually decrease or increase.

4. A quick-connect self-locking RF connector according to claim 1, characterized in that, The toggle-type limiting component (3) also includes a key (34), which is fixedly connected to the outside of the collar (31). The male head (1) has a locking groove (13) on its surface, and the key (34) is slidably connected in the locking groove (13).

Images