A radio frequency coaxial switch

Abstract

This application provides a radio frequency coaxial switch, relating to the field of coaxial switch technology. The radio frequency coaxial switch includes a back plate and two connectors (two plugs) evenly distributed and fixed on the surface of the back plate. On the front of each connector (two plugs), there are also insertable plugs. A fixing groove is formed on the outer periphery of each connector. A limiting hole (one hole) is formed on the surface of the back plate (one hole), and a rectangular post is inserted into the limiting hole (one hole). A retaining ring (two rings) is fixed to the end of the rectangular post near the lower part of the connector (two plugs). The retaining ring (two rings) can be placed in the fixing groove. A drive shaft is rotated by a power tool. A gear (three gears) at one end of the drive shaft drives a gear (one gear) to rotate. The gear (one gear) synchronously drives two gears (two gears) to rotate through its inner teeth. This causes the threaded hole in the center of the gear (two gears) to drive a threaded rod to move linearly. Finally, the threaded rod moves the retaining ring (two rings), pulling the connectors placed on it into or out of the connectors (two plugs), thus achieving connection and separation between the two.

Description

Technical Field

[0001] This invention belongs to the field of coaxial switch technology, and particularly relates to a radio frequency coaxial switch. Background Technology

[0002] Radio frequency (RF) coaxial switches are key components in microwave test systems, communication systems, and radar systems, used to switch RF signals between multiple paths. In complex test systems or multi-channel communication equipment, multiple coaxial switches are often used in combination to construct complex signal routing networks.

[0003] In the prior art (publication number CN222463386U, patent application titled "A Switching Matrix for a High-Power Multi-Channel Coaxial Switch"), the coaxial switch is used to connect various components, the power source can be connected to any output antenna or dummy load, the duplexer is used to receive two power sources and output to any output antenna or dummy load, the power combiner is used to receive and combine multiple power sources and output to a specific output antenna or dummy load; the controller is used to control the coaxial switch to switch. It has been found that the prior art has at least the following problems.

[0004] In the aforementioned technologies, the mainstream approach to implementing multi-channel RF switch functionality involves fixing multiple independent coaxial switch units to a chassis or mounting plate using screws or other methods. These individual switch units are then manually plugged in and interconnected one by one using external RF cables and connectors to form the desired circuit topology. While this discrete assembly method achieves functionality to some extent, it suffers from several significant drawbacks in practical applications. These include cumbersome operation, low assembly efficiency, the need for individual positioning and fixing of each switch unit, and the requirement for manual plugging and tightening at each RF interconnection point. When the number of switches is large, the entire assembly process is time-consuming and labor-intensive, significantly reducing the production and integration efficiency of the equipment. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems of cumbersome interlocking in the prior art. To this end, this application proposes a radio frequency coaxial switch.

[0006] To achieve the above objectives, the specific technical solution of the present invention is as follows: A radio frequency coaxial switch includes a back plate and two plugs uniformly distributed and fixed on the surface of the back plate. On the front side of the plugs, there are also plugs that can be inserted. At the same time, a fixing groove is opened on the outer peripheral surface of the plugs. A limiting hole is opened on the surface of the back plate. A rectangular post is inserted into the limiting hole. A retaining ring is fixed at the end of the rectangular post near the bottom of the plugs. The retaining ring can be placed in the fixing groove.

[0007] Preferably, a fixing rod is fixed to the other side of the back plate, and a semi-ring is fixed to the end of the fixing rod. The surface of the semi-ring is configured with a C-shaped opening. A rotatable gear is provided at one end of the plug, and a rotating ring is fixed to the surface of the gear. The rotating ring can be placed in the C-shaped opening of the semi-ring.

[0008] Preferably, the outer circumferential surface of the gear one meshes with the gear three, and a drive shaft extends from the center of the gear three in the direction of the back plate one, wherein one end of the drive shaft passes through a rotating shaft hole opened on the surface of the back plate one, and the end of the drive shaft is arranged in a rectangular structure.

[0009] Preferably, a fixing rod 2 is fixed to the surface of the back plate 1, wherein a rotating guide ring is fixed to the end of the fixing rod 2, and a rotatable gear 2 is provided coaxially at the opening of the rotating guide ring, with a threaded hole penetrating the center of the gear 2, wherein a threaded rod is fixed to the end of the rectangular column, and the thread on the outer circumference of the threaded rod forms a threaded connection with the threaded hole.

[0010] Preferably, a fixing post extends from the second surface of the back plate toward the first surface of the back plate, and the end face of the fixing post is fixedly connected to the second surface of the back plate. A rotating head is also fixed at the other end of the fixing post. The center of the gear three is sleeved on the outer circumferential surface of the rotating head. A rectangular block is fixed on the other side of the center of the gear three, and protrusions are fixed on both sides of the outer surface of the rectangular block.

[0011] Preferably, a rotating cylinder is fitted onto the outer periphery of the rectangular block, and a telescopic groove is opened at one end of the rotating cylinder to allow the rectangular block to telescopically move, while the protrusion is placed on the path opened on the surface of the telescopic groove to limit its movement, and a spring is filled between the end of the rectangular block and the top surface of the telescopic groove.

[0012] Preferably, one end of the rotating drum has a second slot, and the end of the drive shaft, which is coaxial with the rotating drum, has a first slot. The first slot and the second slot engage with each other, and the first slot and the second slot are arranged in an inclined interlocking structure.

[0013] Preferably, the fixed column has a hollow internal structure, and an electromagnet is fixed inside it, wherein an electromagnetic telescopic head for telescopic movement passes through both ends of the electromagnet.

[0014] Preferably, the gear sleeved on the rotating head has a retraction groove on its three end faces, and a spring is provided inside the retraction groove. At the same time, a telescopic push rod is provided at the opening of the retraction groove, and the end of the electromagnetic telescopic head near the push rod is arranged in a rectangular shape.

[0015] Preferably, the surface of the back plate has a through-hole for fixing the plug 2 inside the through-hole.

[0016] The radio frequency coaxial switch of the present invention has the following advantages: 1. This radio frequency coaxial switch uses a power tool to rotate a drive shaft. A gear three at one end of the drive shaft drives a gear one to rotate. The gear one drives two gear two to rotate synchronously through its inner teeth. This causes the threaded hole in the center of the gear two to drive the threaded rod to move linearly. Finally, the threaded rod drives the retaining ring two to move, pulling the plug placed on it into or out of the plug two, thus realizing the connection and separation of the two.

[0017] 2. This radio frequency coaxial switch, when the plug reaches the appropriate depth, if the drive shaft continues to rotate, the inclined surface of the first slot on it will push the rotating drum axially, causing the two to disengage and automatically cutting off power transmission, effectively preventing excessive insertion. When the drive shaft rotates in the opposite direction, the first slot interacts with the second slot on the rotating drum, which can re-engage and drive the plug out.

[0018] 3. In this type of radio frequency coaxial switch, after the two plugs are fully mated, the electromagnet is energized, and the rectangular end of its electromagnetic telescopic head pushes the push rod back into the retraction groove. This state locks the mechanism, ensuring that even if the drive shaft is accidentally rotated in the opposite direction, the electromagnetic telescopic head can still act as a blockage, effectively preventing the plugs from disconnecting during use and ensuring the reliability of the connection.

[0019] 4. In this type of radio frequency coaxial switch, when the electromagnet is energized, its electromagnetic telescopic head pulls the entire motor to a displacement, causing gear four on the motor output shaft to engage with the gear ring. Subsequently, the motor starts, driving the gear ring and the blades connected to it to rotate continuously through gear four, generating directional airflow, thereby effectively and actively cooling plug two. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded structural diagram of back plate one and back plate two of the present invention; Figure 3 This is a schematic diagram of the backplate structure of the present invention. Figure 1 ; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 For the present invention Figure 5Enlarged structural diagram at point E; Figure 6 This is a front view structural diagram of the back plate of the present invention; Figure 7 For the purposes of this invention Figure 6 Schematic diagram of the cross-sectional structure of the middle AA section; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B; Figure 9 This is a schematic diagram of the backplate structure of the present invention. Figure 2 ; Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C; Figure 11 This is a schematic diagram of the rotating ring structure of the present invention; Figure 12 For the present invention Figure 11 Enlarged structural diagram at point D.

[0022] Explanation of markings in the diagram: 1. Back plate one; 11. Back plate two; 111. Snap ring one; 112. Limiting hole two; 12. Plug two; 13. Switch hole; 14. Limiting hole one; 15. Rotating shaft hole; 2. Plug; 21. Fixing groove; 22. Snap ring two; 221. Rectangular column; 222. Threaded rod; 3. Fixing rod one; 31. Gear one; 32. Rotating ring one; 33. Half ring; 4. Fixing rod two; 41. Rotating guide ring; 42. Gear two; 43. Threaded hole; 5. Drive shaft; 51, Slot 1; 6, Fixed post; 61, Rotating head; 611, Limiting post; 62, Electromagnet; 621, Electromagnetic telescopic head; 622, Limiting groove; 7, Rotating drum; 71, Gear 3; 72, Telescopic groove; 73, Rectangular block; 731, Retraction groove; 732, Spring 2; 733, Push rod; 734, Protrusion; 74, Spring 1; 75, Slot 2; 8, Motor; 81, Gear 4; 9, Rotating ring; 91, Blade; 92, Rotating ring; 93, Gear ring. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] like Figures 1-2 As shown, a radio frequency coaxial switch of the present invention includes a back plate 1 and a back plate 2 11, wherein the back plate 1 and the back plate 2 11 are arranged adjacent to each other at intervals. Switch holes 13 are uniformly distributed throughout the surface of the back plate 1, and a connector 2 12 is fixed at the coaxial center of the switch holes 13, thus the connector 2 12 can be evenly distributed on the surface of the back plate 1. A connector 2 is inserted into the insertion opening of the connector 2 12, and signal transmission can be performed through the connector 2.

[0025] like Figures 2-6 As shown, limit holes 14 are respectively passed through the two sides of the edge of the switch hole 13. A rectangular post 221 is inserted into the inside of the limit hole 14. A retaining ring 22 is fixed at the end of the rectangular post 221 near the bottom of the plug 2. A fixing groove 21 is provided on the outer peripheral surface of the plug 2 for the retaining ring 22 to engage.

[0026] A fixing rod 3 is fixed to the other side of the back plate 1. A semi-ring 33 is fixed to the end of the fixing rod 3. The surface of the semi-ring 33 is arranged with a C-shaped opening. A rotatable gear 31 is provided opposite to one end of the plug 12. A rotating ring 32 is fixed to the surface of the gear 31. The rotating ring 32 can be placed in the C-shaped opening of the semi-ring 33, so that the gear 31 can rotate with the support of the semi-ring 33. The inner and outer rings of the gear 31 are toothed.

[0027] Gear 31 meshes with the outer circumferential surface of gear 31, and a drive shaft 5 extends from the center of gear 31 toward back plate 1. One end of the drive shaft 5 passes through a pivot hole 15 opened on the surface of back plate 1, and the end of the drive shaft 5 is arranged in a rectangular structure.

[0028] On the other side of the back plate 1, a fixing rod 2 4 is also fixed. A rotating guide ring 41 is also fixed at the end of the fixing rod 2 4. A rotatable gear 2 42 is provided coaxially at the opening of the rotating guide ring 41. A threaded hole 43 passes through the center of the gear 2 42. A threaded rod 222 is also fixed at the end of the rectangular column 221. The thread on the outer circumference of the threaded rod 222 forms a threaded connection with the threaded hole 43. Therefore, when plug 12 and plug 2 need to be inserted into each other, the fixing groove 21 on the outer circumference of plug 2 can be placed above the retaining ring 22. Then, the end of the drive shaft 5 can be rotated by a power tool. After the drive shaft 5 rotates, the gear 3 71 at one end can drive the gear 1 31. As the gear 1 31 rotates, the teeth on the inner ring can synchronously drive the two meshing gears 2 42 to rotate together. Then, the threaded hole 43 in the center of gear 2 42 can make the threaded rod 222 move continuously. Then, the retaining ring 22 can pull plug 2 to insert into plug 12, thus facilitating the connection or disconnection of multiple plugs 2 12 and plug 2.

[0029] like Figures 7-10As shown, a fixing post 6 extends from the surface of back plate 2 11 toward back plate 1, and the end face of the fixing post 6 is fixedly connected to the surface of back plate 2 11. A rotating head 61 is fixed to the other end of the fixing post 6. The center of gear 3 71 is fitted onto the outer circumference of the rotating head 61, allowing gear 3 71 to rotate around the rotating head 61 as an axis. A rectangular block 73 is fixed to the other side of the center of gear 3 71, and protrusions 734 are fixed to both sides of the outer surface of the rectangular block 73. A rotating cylinder 7 is fitted onto the outer circumference of the rectangular block 73. A telescopic groove 72 is opened at one end of the rotating cylinder 7 to allow the rectangular block 73 to telescopically extend and retract, while the protrusions 734 are positioned on the path opened on the surface of the telescopic groove 72 to limit movement, allowing the rotating cylinder 7 to telescopically extend and retract by a specific length. Simultaneously, a spring 74 is filled between the end of the rectangular block 73 and the top surface of the telescopic groove 72. When the rotating cylinder 7 moves toward the rectangular block 73, the spring 74 can push the rotating cylinder 7 in the opposite direction.

[0030] The other end of the rotating drum 7, opposite to the telescopic groove 72, has a second slot 75. The end of the drive shaft 5, coaxial with the rotating drum 7, has a first slot 51. The first slot 51 and the second slot 75 engage with each other, forming an inclined, interlocking structure. Therefore, when the drive shaft 5 is rotated to allow the plug 2 to be inserted into the second plug 12, the drive shaft 5 rotates continuously. Once the plug 2 is inserted to a suitable depth, further rotation of the drive shaft 5 causes the first slot 51, due to its inclined surface, to continuously push the rotating drum 7, thereby disconnecting the power connection between the rotating drum 7 and the drive shaft 5, preventing the plug 2 from being inserted too deeply. Simultaneously, when the drive shaft 5 rotates in the opposite direction, the plug 2 can be removed through the first slot 51 and the second slot 75.

[0031] like Figure 3 and Figures 8-12 As shown, the fixed column 6 has a hollow internal structure, and an electromagnet 62 is fixed inside it. An electromagnetic telescopic head 621 for extending and retracting the electromagnet 62 passes through both ends of the electromagnet 62. The gear 71, which is fitted onto the rotating head 61, has an inwardly opening retraction groove 731. A spring 732 is located inside the retraction groove 731, and a telescopic push rod 733 is located at the opening of the retraction groove 731. The end of the electromagnetic telescopic head 621 near the push rod 733 has a rectangular structure. Therefore, after the plug 2 and plug 12 are inserted, energizing the electromagnet 62 next to plug 12 causes the rectangular end of the electromagnetic telescopic head 621 to push the push rod 733 back into the retraction groove 731. Then, when the drive shaft 5 is rotated in the opposite direction, the electromagnetic telescopic head 621 prevents the plug 2 from disconnecting during use.

[0032] like Figures 10-12As shown, a limiting post 611 is horizontally fixed at the opening of the rotating head 61. The end of the limiting post 611 passes through a limiting groove 622 opened on the outer circumference of the electromagnetic telescopic head 621. A motor 8 is fixed at the other end of the electromagnetic telescopic head 621, and a gear 81 is fixed at the power output end of the motor 8. At the same time, a retaining ring 111 is fixed on one side of the back plate 2 11, and a limiting hole 112 is also opened on the surface of the back plate 2 11, which allows the motor 8 to move telescopically. A rotating ring 9 is also provided in the retaining ring 111, and a rotating ring 92 fixed on the surface of the rotating ring 9 can be placed in the retaining ring 111, so that the rotating ring 9 can rotate around the rotating ring 92 as the axis. A blade 91 is fixed to the inner ring wall of the rotating ring 9. As the rotating ring 9 rotates, the blade 91 rotates as well. A gear ring 93 is fixed to the outer circumference of the rotating ring 9. Both the gear ring 93 and the gear end face of gear four 81 are chamfered, with the tooth ends forming guide bevels to prevent interference between them. When the electromagnet 62 is energized, the electromagnetic telescopic head 621 moves, pulling the motor 8 to move as well. The motor 8, in turn, engages gear four 81 and gear ring 93. Therefore, after plug two 12 and plug two are connected, the motor 8 rotates, driving gear four 81 to drive gear ring 93. Subsequently, the blade 91 rotates continuously, generating wind power, which cools plug two 12.

[0033] The working principle of a radio frequency coaxial switch: When plug 12 and plug 2 need to be inserted into each other, the fixing groove 21 on the outer circumference of plug 2 can be placed above the retaining ring 22. Then, the end of the drive shaft 5 is rotated by a power tool. The drive shaft 5 can then rotate. After the drive shaft 5 rotates, the gear 3 71 at one end can drive the gear 1 31. As the gear 1 31 rotates, the teeth on the inner ring can synchronously drive the two meshing gears 2 42 to rotate together. Then, the threaded hole 43 in the center of gear 2 42 can make the threaded rod 222 move continuously. Then, the retaining ring 22 can pull plug 2 to insert into plug 12, thereby facilitating the connection or disconnection of multiple plugs 2 12 and plug 2. When the drive shaft 5 is rotated to mate the plug 2 with the plug 12, the drive shaft 5 rotates continuously. Once the plug 2 is inserted to a suitable depth, rotating the drive shaft 5 again causes the inclined surface of the slot 51 to continuously push the rotating drum 7, thereby disconnecting the power connection between the rotating drum 7 and the drive shaft 5 to prevent the plug 2 from being inserted too deeply. Simultaneously, when the drive shaft 5 rotates in the opposite direction, the plug 2 can be removed through the slots 51 and 75. After plug 2 and plug 12 are connected, the electromagnet 62 next to plug 12 is energized. Then the rectangular end of the electromagnetic telescopic head 621 pushes the top rod 733 to retract into the retraction groove 731. Then, when the drive shaft 5 is rotated in the opposite direction, the electromagnetic telescopic head 621 can prevent plug 2 from disconnecting during use. When the electromagnet 62 is energized, the electromagnetic telescopic head 621 moves and pulls the motor 8 to move as well. The motor 8 moves and pulls the gear 4 81 and the gear ring 93 to mesh with each other. Therefore, after the plug 2 12 and the plug 2 are connected to each other, the motor 8 rotates and drives the gear ring 93 through the gear 4 81. Then the blade 91 rotates continuously to generate wind, which can cool the plug 2 12.

[0034] It should be noted that the specific models and specifications of electromagnet 62 and motor 8 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0035] The power supply and principle of the electromagnet 62 and the motor 8 are clear to those skilled in the art and will not be described in detail here.

[0036] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A radio frequency coaxial switch, characterized in that: The back plate includes a first back plate (1) and a second back plate (11), and a second plug (12) is evenly distributed and fixed on the surface of the first back plate (1). On the front of the second plug (12), there is a plug (2) that can be inserted. At the same time, a fixing groove (21) is opened on the outer peripheral surface of the plug (2). A limiting hole (14) is opened on the surface of the first back plate (1). A rectangular column (221) is inserted into the limiting hole (14). A retaining ring (22) is fixed at the end of the rectangular column (221) near the bottom of the second plug (12). The retaining ring (22) is placed in the fixing groove (21). A fixing rod (3) is fixed on the other side of the first back plate (1). A half ring (33) is fixed at the end of the fixing rod (3). The surface of the half ring (33) is set with a C-shaped opening structure. A rotatable gear (31) is provided at one end of the second plug (12). A rotating ring (32) is fixed on the surface of the semi-ring (33). The rotating ring (32) is placed in the C-shaped opening of the semi-ring (33). The outer circumferential surface of the gear (31) is meshed with the gear (71). At the same time, a drive shaft (5) extends from the center of the gear (71) toward the back plate (1). One end of the drive shaft (5) passes through the rotating shaft hole (15) opened on the surface of the back plate (1). The end of the drive shaft (5) is set in a rectangular structure. A fixing rod (4) is also fixed on the surface of the back plate (1). A rotating guide ring (41) is also fixed at the end of the fixing rod (4). A rotating gear (42) is provided coaxially at the opening of the rotating guide ring (41). A threaded hole (43) passes through the center of the gear (42). A threaded rod (222) is also fixed at the end of the rectangular column (221). The thread on the outer circumferential surface of the threaded rod (222) forms a threaded connection with the threaded hole (43).

2. The radio frequency coaxial switch according to claim 1, characterized in that: A fixing post (6) extends from the surface of the second back plate (11) toward the first back plate (1). The end face of the fixing post (6) is fixedly connected to the surface of the second back plate (11). A rotating head (61) is fixed at the other end of the fixing post (6). The center of the gear three (71) is sleeved on the outer circumference of the rotating head (61). A rectangular block (73) is fixed on the other side of the center of the gear three (71). A protrusion (734) is fixed on both sides of the outer surface of the rectangular block (73).

3. The radio frequency coaxial switch according to claim 2, characterized in that: The outer periphery of the rectangular block (73) is fitted with a rotating cylinder (7). A telescopic groove (72) is opened at one end of the rotating cylinder (7) to allow the rectangular block (73) to telescopically move. The protrusion (734) is placed on the path opened on the surface of the telescopic groove (72) to limit its movement. At the same time, a spring (74) is filled between the end of the rectangular block (73) and the top surface of the telescopic groove (72).

4. The radio frequency coaxial switch according to claim 3, characterized in that: The rotating drum (7) has a slot 2 (75) at one end and a slot 1 (51) at the end of the drive shaft (5) which is coaxial with the rotating drum (7). The slot 1 (51) and the slot 2 (75) engage with each other, and the slot 1 (51) and the slot 2 (75) are arranged in an inclined interlocking structure.

5. The radio frequency coaxial switch according to claim 4, characterized in that: The fixed column (6) has a hollow structure inside, and an electromagnet (62) is fixed inside it. The electromagnet (62) has an electromagnetic telescopic head (621) for telescopic movement that passes through both ends of the electromagnet (62).

6. The radio frequency coaxial switch according to claim 5, characterized in that: The gear three (71) sleeved on the rotating head (61) has an inwardly opening retraction groove (731) on its end face. A spring two (732) is also provided inside the retraction groove (731). At the same time, a telescopic push rod (733) is also provided at the opening of the retraction groove (731). The end of the electromagnetic telescopic head (621) near the push rod (733) is arranged in a rectangular shape.

7. The radio frequency coaxial switch according to claim 1, characterized in that: The surface of the back plate (1) has a switch hole (13) through it, wherein the plug (12) is placed inside the switch hole (13) and fixed therein.

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