A radio frequency coaxial connector plug and socket

The RF coaxial connector plug with a novel structural design, utilizing a combination of a rotating shell and a locking block, solves the problems of difficult unlocking and unstable connection in narrow spaces, achieving simple unlocking operation and stable connection, and extending service life.

CN120200064BActive Publication Date: 2025-12-02MILITARY SECRECY QUALIFICATION EXAMINATION & CERTIFICATION CENT
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Patent Information

Application Number
CN202510339121.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2025-12-02
Estimated Expiration
2045-03-21

AI Technical Summary

Technical Problem

Existing RF coaxial connectors are difficult to unlock in narrow spaces and the connection is not secure. Traditional connection methods are complicated to operate and have a short service life.

Method used

The RF coaxial connector plug, featuring a novel structural design, unlocks by rotating the housing. The combination of a locking block and elastic element simplifies the unlocking process and improves connection stability.

Benefits of technology

It allows for easy unlocking in confined spaces, provides a more secure connection, extends service life, and is easy to operate with a reliable structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a radio frequency (RF) coaxial connector plug and socket. The RF coaxial connector plug includes a first outer conductor, a second outer conductor, a first insulator, an inner conductor, a mounting ring, a rotating shell, a slotted plate, a locking block, a lever, and a first elastic element. The first outer conductor has a first through hole. The second outer conductor is connected to the first outer conductor and has a second through hole. The first insulator is disposed within the first through hole. One end of the mounting ring is connected to the first outer conductor, and the mounting ring has a third through hole, within which the second outer conductor is located. The rotating shell is fitted over the outside of the mounting ring, and the slotted plate is disposed within the rotating shell. The mounting ring is located between the slotted plate and the first outer conductor, and the slotted plate has a track groove. The locking block is slidably connected to one end of the mounting ring. One end of the lever is connected to the locking block, and the other end is inserted into the track groove. One end of the first elastic element is connected to the slotted plate, and the other end is connected to the mounting ring. This invention has the advantages of stable and reliable structure and long service life.
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Description

Technical Field

[0001] This invention relates to the field of connector technology, and more specifically to an RF coaxial connector plug and socket. Background Technology

[0002] RF coaxial connectors are a type of microwave component used to connect various microwave circuits. They can be used for input / output ports of microwave instruments and equipment, connections between various RF modules, and connections between transmitting devices and antennas. RF coaxial connectors consist of a plug and a socket. Typically, the active connection part with a locking mechanism is called the plug, and the passive connection part is called the socket. Traditional connection methods for RF coaxial connectors include threaded connections, bayonet connections, and insertion connections. However, these methods suffer from problems such as vibration failure, discontinuous transmission characteristics, large installation spacing, and complex connection operations.

[0003] To address this, Chinese invention patent CN101958494B provides a coaxial connector that unlocks by operating an unlocking sleeve. However, during use, the applicant discovered that the elastic locking mechanism in this coaxial connector is prone to losing its elasticity, resulting in an unstable connection between the plug and socket. Consequently, the effective number of connections for this coaxial connector is low. Furthermore, if this coaxial connector is installed in a confined space, when the plug needs to be removed, due to space limitations, although a person can touch the coaxial connector, it is difficult to exert enough force to push the unlocking sleeve to slide. Therefore, unlocking is difficult in this situation. Summary of the Invention

[0004] To address the shortcomings of the prior art, this invention provides an RF coaxial connector plug and an RF coaxial connector socket adapted to the RF coaxial connector plug. This invention aims to at least partially solve one of the technical problems in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] One aspect of the present invention provides a radio frequency (RF) coaxial connector plug, which includes a first outer conductor, a second outer conductor, a first insulator, a plug inner conductor, and a connecting mechanism. The first outer conductor has a first through-hole; one end of the second outer conductor is connected to the first outer conductor, and the second outer conductor has a second through-hole coaxial with the first through-hole; the first insulator is disposed within the first through-hole and fixedly connected to the first outer conductor; the plug inner conductor is coaxially disposed with the first outer conductor, passes through the first insulator, one end of the plug inner conductor extends into the first through-hole, and the other end of the plug inner conductor extends into the second through-hole; the connecting mechanism is used for snap-fit ​​connection with a socket.

[0007] In some embodiments, the connecting mechanism includes a mounting ring, a rotating shell, a slotted plate, a locking block, a lever, and a first elastic element; one end of the mounting ring is detachably connected to a first outer conductor, and the mounting ring has a third through hole coaxial with the second through hole, the second outer conductor is located in the third through hole and has a first gap with the mounting ring; the rotating shell is sleeved on the outside of the mounting ring and can rotate about the axis of the second through hole; the slotted plate is disposed in the rotating shell and has a hollow center, the slotted plate rotates synchronously with the rotating shell, the mounting ring is located between the slotted plate and the first outer conductor, the slotted plate has a track groove, the track groove has a first end and a second end, the first end is close to the center of the slotted plate relative to the second end; the locking block is connected to the end of the mounting ring away from the first outer conductor, and the locking block can slide along the radial direction of the mounting ring; one end of the lever is fixedly connected to the locking block, and the other end is inserted into the track groove and can slide in the track groove; when the lever is located at the first end of the track groove, at least a portion of the locking block is inserted into the first gap; one end of the first elastic element is connected to the slotted plate, and the other end of the first elastic element is connected to the mounting ring, the first elastic element applies an elastic force to keep the lever at the first end of the track groove.

[0008] In some embodiments, the RF coaxial connector plug further includes an end cap with a fourth through hole at its center, a slot plate located between the end cap and the mounting ring, and one end of the end cap connected to the rotating shell.

[0009] In some embodiments, the outer wall of the mounting ring is provided with a fifth through hole communicating with the third through hole, and the end face of the mounting ring away from the first outer conductor is provided with a sliding groove communicating with the fifth through hole. The extension direction of the sliding groove is consistent with the extension direction of the fifth through hole. The locking block is located in the fifth through hole and can slide in the fifth through hole. The lever passes through the track groove and the sliding groove in sequence and is connected to the locking block.

[0010] In some embodiments, a plug is provided at the outer end of the fifth through hole, and the locking block includes a locking sleeve and a locking tongue; the locking sleeve is located in the fifth through hole and can slide in the fifth through hole, a first cavity is provided at one end of the locking sleeve near the plug, and a second cavity is provided at the other end of the locking sleeve communicating with the first cavity, the diameter of the first cavity being larger than the diameter of the second cavity; the locking tongue includes a tongue body and a stop portion connected to each other, the tongue body passes through the second cavity, a chamfer is provided at one end of the tongue body away from the stop portion, the stop portion is located in the first cavity, the diameter of the stop portion being larger than the diameter of the second cavity, and the tongue body and the stop portion can slide in the second cavity and the first cavity respectively; the RF coaxial connector plug also includes a second elastic member located in the fifth through hole and between the plug and the stop portion, the second elastic member pressing the stop portion to cause the locking tongue to extend out from the locking sleeve.

[0011] In some embodiments, the first elastic element is a tension spring and the second elastic element is a compression spring.

[0012] In some embodiments, the slot plate includes an annular portion, an inner connecting plate, an ear plate, and a locking block. The annular portion is circular, and the inner connecting plate and the ear plate are both located inside the annular portion and fixedly connected to it. The track groove is provided on the inner connecting plate, and one end of the first elastic member is connected to the ear plate. The number of locking blocks is at least two. The locking blocks are located outside the annular portion and fixedly connected to it. A locking groove is provided on the end face of the rotating shell away from the first outer conductor, and the locking block is embedded in the locking groove.

[0013] In some embodiments, the end of the mounting ring away from the first outer conductor has a first pin, the first pin being located outside the third through hole and parallel to the axis of the third through hole, and one end of the first elastic member being connected to the first pin.

[0014] In some embodiments, the end of the mounting ring near the first outer conductor is threadedly connected to the first outer conductor, a retaining ring is provided on the outer wall of the mounting ring, and an annular groove is provided between the retaining ring and the first outer conductor. A retaining ring is provided at the end of the rotating shell near the first outer conductor, and the retaining ring extends radially inward along the rotating shell and is engaged in the annular groove.

[0015] In some embodiments, the plug inner conductor includes a first inner conductor, a second inner conductor, and a third inner conductor; the first inner conductor is located in a second through hole and has a pin at one end away from the first outer conductor; the second inner conductor passes through a first insulator and is threaded to the first inner conductor at one end; the third inner conductor is located in a first through hole and is threaded to the second inner conductor at one end.

[0016] Another aspect of the present invention provides an RF coaxial connector socket, which includes a third outer conductor, a second insulator, and a socket inner conductor; the third outer conductor has a sixth through hole inside and a locking hole on its outer wall; the second insulator is located inside the sixth through hole and is fixedly connected to the third outer conductor, and there is a second gap between one end of the second insulator and the third outer conductor; the socket inner conductor is located inside the second insulator and has a socket at one end.

[0017] Compared with the prior art, the RF coaxial connector plug provided by the present invention adopts a novel structural design, which unlocks the RF coaxial connector socket by rotating the rotating shell. Moreover, the unlocking process only requires manually rotating the rotating shell by a small angle, making the unlocking operation between the RF coaxial connector plug and the RF coaxial connector socket simpler. The unlocking operation of the RF coaxial connector plug can be completed even in narrow spaces. In addition, the RF coaxial connector plug provided by the present invention has a more stable structure and a longer service life. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the RF coaxial connector plug in an embodiment of the present invention.

[0020] Figure 2 yes Figure 1 A schematic diagram showing the end caps after they have been removed.

[0021] Figure 3 This is a cross-sectional view of the RF coaxial connector plug in an embodiment of the present invention.

[0022] Figure 4 yes Figure 3 A magnified view of section I in the middle.

[0023] Figure 5 This is a half-sectional view of the first outer conductor in an embodiment of the present invention.

[0024] Figure 6 This is a half-sectional view of the second outer conductor in an embodiment of the present invention.

[0025] Figure 7a This is a perspective view of the mounting ring in an embodiment of the present invention.

[0026] Figure 7b This is a half-sectional view of the mounting ring in an embodiment of the present invention.

[0027] Figure 8 This is a cross-sectional view of the rotating shell in an embodiment of the present invention.

[0028] Figure 9 This is a perspective view of the end cap in an embodiment of the present invention.

[0029] Figure 10 This is a structural diagram of the slot plate in an embodiment of the present invention.

[0030] Figure 11 This is a structural diagram of the locking block in an embodiment of the present invention.

[0031] Figure 12 This is a cross-sectional view of the lock sleeve in an embodiment of the present invention.

[0032] Figure 13a This is a structural diagram of a locking tongue in an embodiment of the present invention.

[0033] Figure 13b This is a structural diagram of another locking tongue in an embodiment of the present invention.

[0034] Figure 14 This is a half-sectional view of the radio frequency coaxial connector socket in an embodiment of the present invention.

[0035] Figure 15 This is a schematic diagram of the RF coaxial connector plug and RF coaxial connector socket before the connection is completed in an embodiment of the present invention.

[0036] Figure 16 This is a cross-sectional view of the RF coaxial connector plug and the RF coaxial connector socket after they are connected in an embodiment of the present invention.

[0037] The annotations in the attached figures are explained as follows:

[0038] In the diagram: 1. First outer conductor; 101. First through hole; 2. Second outer conductor; 201. Second through hole; 202. Plug-in part; 203. Connecting part; 204. Groove; 3. First insulator; 4. Plug inner conductor; 401. First inner conductor; 402. Second inner conductor; 403. Third inner conductor; 5. Mounting ring; 501. Third through hole; 502. Fifth through hole; 503. Slide groove; 504. Retaining ring; 6. Rotating shell; 601. Slot; 602. Snap ring; 7. Groove plate; 701. Ring body; 702. Inner connecting plate; 703. Ear plate; 704. Locking block; 705. Track groove; 7051. First end; 7052. Second end; 8. Locking block; 801. Locking sleeve; 80 11. First cavity; 8012. Second cavity; 8013. Mounting hole; 802. Locking tongue; 8021. Tongue body; 8022. Stop; 9. Lever; 10. End cap; 1001. Fourth through hole; 1002. Indicator arrow; 11. Plug; 12. Second elastic element; 13. First pin; 14. Second pin; 15. First gap; 16. Second gap; 17. Ring groove; 18. Third outer conductor; 1801. Sixth through hole; 1802. Locking hole; 1803. Guide groove; 19. Second insulator; 20. Inner conductor of socket; 2001. Socket; 21. Sealing ring; 22. First elastic element; 100. RF coaxial connector plug; 200. RF coaxial connector socket. Detailed Implementation

[0039] The embodiments of this application will be further described in detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application. This application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0040] These embodiments are provided to make the application thorough and complete, and to fully express the scope of the application to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, material composition, numerical expressions, and values ​​illustrated in these embodiments should be interpreted as merely exemplary and not as limiting.

[0041] It should be noted that, in the description of this application, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] Furthermore, the terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. "Vertical" is not strictly vertical, but within the permissible margin of error. "Parallel" is not strictly parallel, but within the permissible margin of error. Terms such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well.

[0043] It should also be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application depending on the specific circumstances. When a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device.

[0044] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and not as idealized or highly formalized, unless expressly defined herein.

[0045] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0046] See Figures 1-16 As shown, the present invention provides an RF coaxial connector plug 100, which includes a first outer conductor 1, a second outer conductor 2, a first insulator 3, an inner conductor 4, and a connection mechanism for snap-fit ​​connection with a socket.

[0047] See Figure 5 As shown, the first outer conductor 1 is provided with a first through hole 101, which is a circular hole that passes through both ends of the first outer conductor 1.

[0048] See Figure 6 As shown, the second outer conductor 2 consists of an integrally formed connecting portion 203 and a plug-in portion 202. The connecting portion 203 is located at the right end of the second outer conductor 2, and the plug-in portion 202 is located at the left end of the second outer conductor 2. Both the connecting portion 203 and the plug-in portion 202 are cylindrical, and the outer diameter of the connecting portion 203 is larger than the outer diameter of the plug-in portion 202. The connecting portion 203 is provided with external threads for connecting with the first outer conductor 1. The plug-in portion 202 is provided with four grooves 204. The extending direction of the grooves 204 is parallel to the axis of the second through hole 201. The second through hole 201 passes through both the connecting portion 203 and the plug-in portion 202. See also Figure 3 As shown, the right end of the second outer conductor 2 is threaded to the left end of the first outer conductor 1. After the second outer conductor 2 and the first outer conductor 1 are connected, the first through hole 101 of the first outer conductor 1 and the second through hole 201 of the second outer conductor 2 are coaxial.

[0049] See Figure 3 As shown, the first insulator 3 is disposed within the first through hole 101 and fixedly connected to the first outer conductor 1; the plug inner conductor 4 is coaxially arranged with the first outer conductor 1, the plug inner conductor 4 passes through the first insulator 3, one end of the plug inner conductor 4 extends into the first through hole 101, and the other end of the plug inner conductor 4 extends into the second through hole 201. In specific implementation, the first insulator 3 can be made of insulating materials such as glass or ceramic. The first insulator 3 is formed in the first through hole 101 of the first outer conductor 1 by a sintering process. Before sintering the first insulator 3, the plug inner conductor 4 is first placed into the first through hole 101 and the second through hole 201 and made coaxial with the first through hole 101; after the first insulator 3 is sintered, the outer wall of the first insulator 3 is in close contact with the inner wall of the first outer conductor 1, and the middle part of the plug inner conductor 4 is fixed in the first insulator 3.

[0050] The aforementioned connecting mechanism includes a mounting ring 5, a rotating shell 6, a groove plate 7, a locking block 8, a lever 9, and a first elastic element 22.

[0051] For ease of processing and assembly, one end of the mounting ring 5 is detachably connected to the first outer conductor 1. Referring to Figure 7, the mounting ring 5 has a third through hole 501 coaxial with the second through hole 201. The third through hole 501 is circular and its diameter is larger than the outer diameter of the insertion portion 202 of the second outer conductor 2. (See Figure 7 for more details.) Figure 3 As shown, after the mounting ring 5 is connected to the first outer conductor 1, the second outer conductor 2 is located in the third through hole 501, and there is a first gap 15 between the second outer conductor 2 and the mounting ring 5. The aforementioned first gap 15 allows the third outer conductor 18 on the connector socket to be inserted.

[0052] Rotating shell 6 is a hollow cylinder, see [reference]. Figure 3 As shown, the rotating shell 6 is fitted on the outside of the mounting ring 5. When the rotating shell 6 is rotated manually, it can rotate around the axis of the second through hole 201.

[0053] See Figure 3 As shown, the slot plate 7 is located inside the rotating shell 6 and has a hollow center. The slot plate 7 rotates synchronously with the rotating shell 6. The mounting ring 5 is located between the slot plate 7 and the first outer conductor 1. The hollow structure in the center of the slot plate 7 allows the third outer conductor 18 on the RF coaxial connector socket 200 to pass through. See also Figure 10 As shown, the groove plate 7 is provided with an arc-shaped track groove 705. The track groove 705 is close to the edge of the groove plate 7. The track groove 705 has a first end 7051 and a second end 7052. The first end 7051 is close to the center of the groove plate 7 relative to the second end 7052.

[0054] Locking block 8 is connected to the end of mounting ring 5 away from the first outer conductor 1, and locking block 8 can slide along the radial direction of mounting ring 5. There can be one or more locking blocks 8. When there are two or more locking blocks 8, they are arranged in a ring array around the center of the left end face of the second outer conductor 2. Each locking block 8 is provided with a lever 9. One end of lever 9 is fixedly connected to locking block 8, and the other end of lever 9 is inserted into the track groove 705 of slot plate 7 and can slide within the track groove 705. When lever 9 is located at the first end 7051 of track groove 705, at least a portion of locking block 8 is inserted into the first gap 15. One end of first elastic member 22 is connected to slot plate 7, and the other end of first elastic member 22 is connected to mounting ring 5. First elastic member 22 applies elastic force to keep lever 9 at the first end 7051 of track groove 705.

[0055] In this invention, the first elastic element 22 is a tension spring, such as... Figure 2 As shown, when the first elastic element 22 is in its shortest state, the first elastic element 22 pulls the slot plate 7 and keeps the lever 9 at the first end 7051 of the track slot 705. At this time, the locking block 8 is in the locked position, and a part of the locking block 8 is inserted into the first gap 15 and can be used to insert into the locking hole 1802 on the RF coaxial connector socket 200. Figure 2As shown, rotating the rotating shell 6 counterclockwise can move the locking block 8 from the locked position to the unlocked position, realizing the unlocking operation of the RF coaxial connector plug 100. When rotating the rotating shell 6 counterclockwise, the rotating shell 6 drives the slot plate 7 to rotate synchronously. During this process, the lever 9 slides from the first end 7051 to the second end 7052 of the track slot 705. The lever 9 drives the locking block 8 to gradually move away from the center of the second outer conductor 2. At the same time, the rotating slot plate 7 stretches the first elastic element 22. After the torque applied to the rotating shell 6 is removed, the tension provided by the first elastic element 22 will drive the slot plate 7 and the rotating shell 6 to rotate clockwise, so that the locking block 8 returns to the locked position.

[0056] In this invention, the RF coaxial connector plug 100 further includes an end cap 10. The end cap 10 has a fourth through hole 1001 at its center. The size of the fourth through hole 1001 should be suitable for the passage of the third outer conductor 18 on the RF coaxial connector socket 200. A slot plate 7 is located between the end cap 10 and the mounting ring 5. One end of the end cap 10 is connected to the rotating shell 6. The end cap 10 protects key components such as the locking block 8 and the first elastic element 22, thereby extending the service life of the RF coaxial connector plug 100. Furthermore, the end cap 10 also makes the appearance of the RF coaxial connector plug 100 more concise and aesthetically pleasing.

[0057] Referring to Figure 7, the outer wall of the mounting ring 5 is provided with a fifth through hole 502 communicating with the third through hole 501. The fifth through hole 502 is a circular hole and the number of holes is equal to that of the locking block 8. A groove 503 communicating with the fifth through hole 502 is provided on the end face of the mounting ring 5 away from the first outer conductor 1. The extending direction of the groove 503 is consistent with the extending direction of the fifth through hole 502. The locking block 8 is located inside the fifth through hole 502 and can slide within it. The lever 9 passes through the track groove 705 and the groove 503 in sequence and is connected to the locking block 8. In specific implementation, the axis of the fifth through hole 502 is perpendicular to and coplanar with the axis of the third through hole 501. The locking block 8 can be installed by drilling the fifth through hole 502 on the outer wall of the mounting ring 5. The processing and assembly process is very simple, and it also ensures that the locking block 8 can move radially along the second outer conductor 2.

[0058] See Figure 4 As shown, a plug 11 is provided at the outer end of the fifth through hole 502. For easy disassembly, the plug 11 is threadedly connected to the second outer conductor 2. (See also...) Figures 11 to 13bAs shown, the lock block 8 includes a lock sleeve 801 and a lock tongue 802. The lock sleeve 801 is cylindrical and is located within the fifth through hole 502, where it can slide. One end of the lock sleeve 801 near the plug 11 has a first cavity 8011, and the other end has a second cavity 8012 communicating with the first cavity 8011. Both the first cavity 8011 and the second cavity 8012 have circular cross-sections, with the diameter of the first cavity 8011 being larger than the diameter of the second cavity 8012. The lock tongue 802 includes a tongue body 8021 and a stop portion 8022 connected to each other. The tongue body 8021 passes through the second cavity 8012. The end of the tongue 8021 away from the stop 8022 has a chamfer. The stop 8022 is located within the first cavity 8011, and its diameter is larger than that of the second cavity 8012. The tongue 8021 and the stop 8022 can slide within the second cavity 8012 and the first cavity 8011, respectively. The RF coaxial connector plug 100 also includes a second elastic element 12 located within the fifth through hole 502 and between the plug 11 and the stop 8022. The second elastic element 12 presses against the stop 8022 to cause the locking tongue 802 to extend from the lock sleeve 801. In specific implementations, the second elastic element 12 can be a compression spring. When the lock block 8 is in the locked position, most of the locking tongue 802 is inserted into the first gap 15. Figure 11 As shown, the outer wall of the lock sleeve 801 is provided with a circular mounting hole 8013 for connecting with the lever 9.

[0059] See Figure 15 As shown, pushing the RF coaxial connector plug 100 to the left allows it to connect with the RF coaxial connector socket 200. During this connection process, when the locking tongue 802 contacts the third outer conductor 18 on the RF coaxial connector socket 200, the third outer conductor 18 will drive the locking tongue 802 to move away from the center of the second outer conductor 2, causing the locking tongue 802 to retract into the locking sleeve 801, thereby ensuring the RF coaxial connection is secure. The axial connector plug 100 can continue to move to the left and connect with the RF coaxial connector socket 200. During this process, it is only necessary to push the RF coaxial connector plug 100 to the left, without having to rotate the rotating shell 6 to move the locking block 8 to the unlocked position, thus making it more convenient to use. Moreover, as the locking tongue 802 moves toward the direction away from the center of the second outer conductor 2, the locking tongue 802 will not drive the locking sleeve 801 and the lever 9 to move, and therefore cannot drive the slot plate 7 and the rotating shell 6 to rotate, thus avoiding the rotation of the rotating shell 6 during the connection between the RF coaxial connector plug 100 and the socket.

[0060] See Figure 10As shown, the slot plate 7 is made of metal sheet by cutting. The slot plate 7 includes an annular portion 701, an inner connecting plate 702, an ear plate 703, and a locking block 704. The annular portion 701 is circular. The inner connecting plate 702 and the ear plate 703 are located inside the annular portion 701 and are fixedly connected to the annular portion 701. The track groove 705 is arc-shaped and is provided on the inner connecting plate 702. One end of the first elastic member 22 is connected to the ear plate 703. There are at least two locking blocks 704. The locking blocks 704 are located outside the annular portion 701 and are fixedly connected to the annular portion 701. A slot 601 is provided on the end face of the rotating shell 6 away from the first outer conductor 1, and the locking block 704 is embedded in the slot 601. In some embodiments, in order to realize the connection between the first elastic member 22 and the ear plate 703, the ear plate 703 also has a second pin 14, and one end of the first elastic member 22 is hooked on the second pin 14.

[0061] In this invention, the end of the mounting ring 5 away from the first outer conductor 1 has a first pin 13. The first pin 13 can be connected to the mounting ring 5 by means of threads. The first pin 13 is located outside the third through hole 501 and is parallel to the axis of the third through hole 501. One end of the first elastic member 22 is connected to the first pin 13.

[0062] In this invention, the end of the mounting ring 5 near the first outer conductor 1 is threadedly connected to the first outer conductor 1. The outer wall of the mounting ring 5 is provided with a retaining ring 504. There is an annular groove 17 between the retaining ring 504 and the first outer conductor 1. The end of the rotating shell 6 near the first outer conductor 1 is provided with a retaining ring 602. The retaining ring 602 extends inward along the radial direction of the rotating shell 6 and is locked in the annular groove 17.

[0063] In this invention, the plug inner conductor 4 includes a first inner conductor 401, a second inner conductor 402, and a third inner conductor 403; the first inner conductor 401 is located in the second through hole 201 and has a pin at one end away from the first outer conductor 1; the second inner conductor 402 passes through the first insulator 3 and is threadedly connected to the first inner conductor 401 at one end; the third inner conductor 403 is located in the first through hole 101 and is threadedly connected to the second inner conductor 402 at one end, and the other end of the third inner conductor 403 is an elastic connection structure for connecting to a coaxial cable.

[0064] See Figure 14As shown, the present invention also provides an RF coaxial connector socket 200 for use with the aforementioned RF coaxial connector plug 100. The RF coaxial connector socket 200 includes a third outer conductor 18, a second insulator 19, and a socket inner conductor 20. The third outer conductor 18 has a sixth through hole 1801 inside, the diameter of which is larger than the outer diameter of the second outer conductor 2 plug portion 202. The outer wall of the third outer conductor 18 has a locking hole 1802 for the insertion of the locking tongue 802 of the locking block 8. The second insulator 19 is located inside the sixth through hole 1801 and is fixedly connected to the third outer conductor 18. One end of the second insulator 19 and the third outer conductor 18 have a second gap 16 for the insertion of the second outer conductor 2 plug portion 202. The socket inner conductor 20 is located inside the second insulator 19 and has a socket 2001 at one end for the insertion of the plug inner conductor 4 pin.

[0065] For easier connection of the RF coaxial connector plug 100 to the RF coaxial connector socket 200, see [link / reference] Figure 14 As shown, a guide groove 1803 is provided on the outer wall of the third outer conductor 18, extending from one end face of the third outer conductor 18 to the locking hole 1802. Additionally, an indicator arrow 1002 (or indicator line) can be provided on the end cap 10, the position of which corresponds to the position of the internal locking block 8. When the RF coaxial connector plug 100 is connected to the RF coaxial connector socket 200, the indicator arrow 1002 is aligned with the guide groove 1803 or the locking hole 1802. To achieve a better sealing effect, a sealing ring 21 can be provided on the outer wall of the third outer conductor 18. After the RF coaxial connector plug 100 and the RF coaxial connector socket 200 are connected, the inner edge of the end cap 10 is in close contact with the sealing ring 21.

[0066] The RF coaxial connector plug 100 provided by this invention can be unlocked from the RF coaxial connector socket 200 by rotating the rotating shell 6. Moreover, the unlocking process only requires manually rotating the rotating shell 6 by a small angle (approximately 30 degrees), making the unlocking operation between the RF coaxial connector plug 100 and the RF coaxial connector socket 200 much simpler, even in confined spaces. Furthermore, the plug 11, first pin 13, second pin 14, first elastic element 22, and second elastic element 12 in the RF coaxial connector plug 100 provided by this invention can all be standard parts, making them readily available. This RF coaxial connector plug 100 adopts a novel structural design, giving it the advantages of structural stability and reliability. The first elastic element 22, by using a tension spring, also ensures a long service life.

[0067] The embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0068] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any manner.

Claims

1. A radio frequency coaxial connector plug, characterized in that, include: A first outer conductor, having a first through hole; The second outer conductor has one end connected to the first outer conductor, and the second outer conductor has a second through hole coaxial with the first through hole; A first insulator is disposed in the first through hole and fixedly connected to the first outer conductor; The plug inner conductor is coaxially arranged with the first outer conductor and passes through the first insulator; one end of the plug inner conductor extends into the first through hole and the other end extends into the second through hole; The mounting ring has one end detachably connected to the first outer conductor. The mounting ring has a third through hole coaxial with the second through hole. The second outer conductor is located in the third through hole and has a first gap with the mounting ring. A rotating shell, which is fitted over the outside of the mounting ring and can rotate about the axis of the second through hole; A slotted plate is disposed inside the rotating shell and has a hollow center. The slotted plate rotates synchronously with the rotating shell. The mounting ring is located between the slotted plate and the first outer conductor. The slotted plate is provided with a track groove. The track groove has a first end and a second end. The first end is close to the center of the slotted plate relative to the second end. A locking block is connected to the end of the mounting ring away from the first outer conductor, and the locking block can slide along the radial direction of the mounting ring; A lever, one end of which is fixedly connected to the locking block, and the other end of which is inserted into the track groove and can slide within the track groove; when the lever is located at the first end of the track groove, at least a portion of the locking block is inserted into the first gap; A first elastic element has one end connected to the groove plate and the other end connected to the mounting ring. The first elastic element applies an elastic force to keep the lever at the first end of the track groove. as well as An end cap is provided with a fourth through hole at its center. The groove plate is located between the end cap and the mounting ring. One end of the end cap is connected to the rotating shell.

2. The RF coaxial connector plug according to claim 1, characterized in that: The outer wall of the mounting ring is provided with a fifth through hole that communicates with the third through hole. The end face of the mounting ring away from the first outer conductor is provided with a sliding groove that communicates with the fifth through hole. The extension direction of the sliding groove is consistent with the extension direction of the fifth through hole. The locking block is located in the fifth through hole and can slide in the fifth through hole. The lever passes through the track groove and the sliding groove in sequence and is connected to the locking block.

3. The RF coaxial connector plug according to claim 2, characterized in that, The fifth through hole is provided with a plug at its outer end, and the locking block includes: A locking sleeve, located within and slidable within the fifth through hole, has a first cavity at one end near the plug, and a second cavity communicating with the first cavity at the other end, wherein the diameter of the first cavity is larger than the diameter of the second cavity; and The locking tongue includes a tongue body and a stop portion connected to each other. The tongue body penetrates the second cavity. The end of the tongue body away from the stop portion is provided with a chamfer. The stop portion is located in the first cavity. The diameter of the stop portion is larger than the diameter of the second cavity. The tongue body and the stop portion can slide in the second cavity and the first cavity respectively. The RF coaxial connector plug further includes a second elastic element, which is located inside the fifth through hole and between the plug and the stop portion. The second elastic element presses against the stop portion to cause the locking tongue to extend out of the locking sleeve.

4. The RF coaxial connector plug according to claim 3, characterized in that: The first elastic element is a tension spring, and the second elastic element is a compression spring.

5. The RF coaxial connector plug according to claim 1, characterized in that: The groove plate includes an annular portion, an inner connecting plate, an ear plate, and a locking block. The annular portion is circular. The inner connecting plate and the ear plate are both located inside the annular portion and are fixedly connected to it. The track groove is provided on the inner connecting plate. One end of the first elastic member is connected to the ear plate. The number of locking blocks is at least two. The locking blocks are located outside the annular portion and are fixedly connected to it. The end face of the rotating shell away from the first outer conductor is provided with a locking groove, and the locking block is embedded in the locking groove.

6. The RF coaxial connector plug according to claim 1, characterized in that: The mounting ring has a first pin at the end away from the first outer conductor. The first pin is located outside the third through hole and parallel to the axis of the third through hole. One end of the first elastic member is connected to the first pin.

7. The RF coaxial connector plug according to claim 1, characterized in that: The mounting ring is threaded to the first outer conductor at one end. A retaining ring is provided on the outer wall of the mounting ring. An annular groove is provided between the retaining ring and the first outer conductor. A retaining ring is provided at one end of the rotating shell near the first outer conductor. The retaining ring extends radially inward along the rotating shell and is engaged in the annular groove.

8. The RF coaxial connector plug according to claim 1, characterized in that, The inner conductor of the plug includes: A first inner conductor has a pin at one end located inside the second through hole and away from the first outer conductor; A second inner conductor, which penetrates the first insulator and has one end threadedly connected to the first inner conductor; and The third inner conductor is located inside the first through hole and one end is threadedly connected to the second inner conductor.

9. A radio frequency coaxial connector socket for use with a connector plug according to any one of claims 1 to 8, the connector socket comprising: The third outer conductor has a sixth through hole inside, and the outer wall of the third outer conductor has a lock hole; A second insulator, located within the sixth through hole and fixedly connected to the third outer conductor, has a second gap between one end of the second insulator and the third outer conductor; and The inner conductor of the socket is located within the second insulator and has a socket at one end.

Citation Information

Patent Citations

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