A VHF radio frequency splitting device
By introducing vibration locking and iris protection structures into the VHF radio frequency splitter equipment, the problems of connectors being susceptible to moisture and loosening are solved, achieving stable connection and preventing contamination, and improving the equipment's vibration resistance and signal transmission reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANHAI NAVIGATION SUPPORT CENT OF THE MINISTRY OF TRANSPORT
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-26
AI Technical Summary
The connectors of existing VHF radio frequency splitter equipment lack protective measures, making them susceptible to moisture and dust accumulation, and prone to loosening under vibration and impact, thus affecting the splitter function.
It adopts a vibration locking structure and an iris protection structure. It resists vibration by locking the threaded ring and ratchet ring on the protection plate, and uses a baffle plate to self-fix the line and seal unused joints to prevent contamination.
Stable connection of the joint is achieved under vibration and impact environment, preventing sensitivity loss and improving the equipment's resistance to mechanical stress and signal transmission reliability.
Smart Images
Figure CN224418141U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of VHF radio frequency splitting technology, specifically, it relates to a VHF radio frequency splitting device. Background Technology
[0002] VHF radio frequency splitter equipment is widely used in the field of signal transmission. It mainly splits multiple signals output from the front-end module, thereby enabling multiple receivers to share a single receiving antenna, effectively reducing the number of receiving antennas.
[0003] The prior art discloses a VHF radio frequency splitter device (CN213817744U) including a splitter device body. A slot is opened on one side of the splitter device body, and a grounding protrusion, multiple input connectors and multiple reserved connectors are provided in the slot. An airflow vortex assembly is also provided in the slot to accelerate air circulation. The airflow vortex assembly includes a cover that is clipped on the edge of the slot. Multiple jet heads are uniformly fixedly connected to the inner side of the slot in a clockwise direction. A blower is fixedly connected to the top of the splitter device body, and the output end of the blower is connected to the multiple jet heads. A housing protection assembly is also provided at the top of the splitter device body.
[0004] The search revealed that existing technologies lack adequate protection for the connector locations, relying solely on covers for overall protection. This results in some connectors being exposed to moisture or dust while others are in use, leading to decreased sensitivity. Furthermore, the connectors lack resistance to external mechanical stresses such as vibration and impact, causing them to shift and loosen, thus affecting the branching function.
[0005] In view of this, this utility model is proposed. Utility Model Content
[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0007] A VHF radio frequency splitter device, comprising
[0008] The main body of the splitter device has a slot on one side, and multiple input connectors and multiple reserved connectors are provided in the slot. The multiple input connectors are evenly distributed in the middle of the slot, and the multiple reserved connectors are located above the multiple input connectors.
[0009] A vibration locking structure is detachably mounted on a slot. The vibration locking structure includes a protective plate, a limiting plate, a ratchet ring, and a connecting post. The protective plate is detachably mounted on the slot, the limiting plate is movably mounted on the protective plate, the connecting post is fixedly mounted on one side of the ratchet ring, the ratchet ring is detachably mounted on the protective plate, and an iris protection structure is installed on the connecting post.
[0010] In a preferred embodiment of the present invention, the iris protection structure includes a baffle plate and a drive disk, wherein the drive disk is rotatably disposed within a connecting column, and the baffle plate is slidably disposed between the connecting column and the drive disk.
[0011] In a preferred embodiment of this utility model, a ring opening is provided on one side of the curved surface of the connecting column, and a hexagonal sliding track is provided inside the connecting column. The ring opening communicates with the sliding track. A lever is fixedly provided on one side of the driving disk. The driving disk is rotatably disposed in the ring opening, and the lever slides through the ring opening.
[0012] In a preferred embodiment of the present invention, the drive disk has multiple channels arranged in a ring array. A guide post is fixedly provided at the center of the side of the baffle plate near the channel, and a sliding post is fixedly provided on the side of the baffle plate away from the guide post. The sliding post slides in the moving slide, and the guide post slides in the channel.
[0013] In a preferred embodiment of this utility model, the protective plate is installed in the slot by bolts, and two different specifications of collars and threaded rings are fixedly provided on the protective plate. The two specifications of collars and threaded rings are respectively set for the input connector and the reserved connector.
[0014] In a preferred embodiment of this utility model, the connecting column is rotatably disposed on the side of the collar away from the protective plate, the ratchet ring is threadedly engaged with the threaded ring, the ratchet ring is rotatably disposed between the collar and the threaded ring, and the collar is locked by a limiting plate.
[0015] In a preferred embodiment of this utility model, a swing opening is provided on one side of the curved surface of the collar, and a limiting plate is hinged in the swing opening. A spring is fixed between one end of the limiting plate and the inner wall of the collar, and the limiting plate is elastically connected to the collar through the spring.
[0016] Compared with the prior art, the present invention has the following advantages:
[0017] 1. By setting up a vibration locking structure, the threaded ring and ratchet ring on the protection plate are used to lock the ratchet ring. The limit plate locks the ratchet ring in its current locked position so that it cannot be reversed or loosened. This addresses the vibration that occurs when the branch equipment is running, so that the ratchet ring can only tighten with the threaded ring under vibration, thereby achieving the purpose of resisting vibration. Combined with the iris protection structure to clamp the line, the connection between the line and the input connector and the reserved connector is stable.
[0018] 2. By setting up an iris protection structure, when in use, each baffle plate forms a reserved opening for the adapted line. The reserved opening corresponds to the surface of the clamping line and is self-adaptively fixed. At the same time, when not in use, the iris protection structure can self-adaptively close the unused input connector and reserved connector to prevent the sensitivity reduction caused by contaminants in the input connector and reserved connector.
[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0020] In the attached diagram:
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a disassembly diagram of the main body and protection board of the shunt device of this utility model;
[0023] Figure 3 This is a schematic diagram of the protective plate of this utility model;
[0024] Figure 4 This is a cross-sectional schematic diagram of the vibration locking structure of this utility model;
[0025] Figure 5 This is a schematic diagram showing the disassembled state of the vibration locking structure of this utility model;
[0026] Figure 6 This is a cross-sectional schematic diagram of the iris protection structure of this utility model.
[0027] In the diagram: 10. Branching device body; 11. Groove; 12. Input connector; 13. Protective plate; 14. Collar; 15. Threaded ring; 16. Swinging port; 17. Limiting plate; 18. Spring; 19. Ratchet ring; 20. Connecting post; 21. Ring opening; 22. Moving slide; 23. Baffle plate; 24. Guide post; 25. Sliding post; 26. Drive disc; 27. Groove; 28. Lever; 29. Reserved connector. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.
[0029] A VHF radio frequency splitter, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, including
[0030] The main body 10 of the branching device has a slot 11 on one side, and multiple input connectors 12 and multiple reserved connectors 29 are provided in the slot 11. The multiple input connectors 12 are evenly distributed in the middle of the slot 11, and the multiple reserved connectors 29 are located above the multiple input connectors 12.
[0031] The vibration locking structure is detachably mounted on the slot 11. The vibration locking structure includes a protective plate 13, a limiting plate 17, a ratchet ring 19, and a connecting post 20. The protective plate 13 is detachably mounted on the slot 11, the limiting plate 17 is movably mounted on the protective plate 13, and the connecting post 20 is fixedly mounted on one side of the ratchet ring 19. The ratchet ring 19 is detachably mounted on the protective plate 13, and an iris protection structure is installed on the connecting post 20.
[0032] like Figure 5 As shown, the iris protection structure includes a baffle plate 23 and a drive disk 26. The drive disk 26 is rotatably disposed within the connecting post 20, and the baffle plate 23 is slidably disposed between the connecting post 20 and the drive disk 26.
[0033] The specific implementation is as follows: The main body 10 of the splitter device is a rectangular metal shell with a rectangular slot 11 on one side. Multiple input connectors 12, such as SMA male connectors, are evenly distributed within the slot 11. Multiple reserved connectors 29, such as SMA female connectors, are located above the input connectors 12. The input connectors 12 and reserved connectors 29 are used to connect the currently used and backup signal links, respectively. A vibration locking structure is detachably installed on the slot 11 to protect and lock the input connectors 12 and reserved connectors 29 against vibration. During use, the threaded ring 15 on the protective plate 13 locks the ratchet ring 19 to its current locked position, preventing it from reversing or loosening. The vibration-locking structure addresses vibrations that occur during operation, ensuring that the ratchet ring 19 continuously tightens with the threaded ring 15 under vibration, thus resisting vibration. Combined with the iris protection structure's clamping of the circuit, this ensures stable connection between the circuit and the input connector 12 and the reserved connector 29. Furthermore, the vibration-locking structure integrates an iris protection structure. During use, the iris protection structure utilizes various clamping plates 23 to form a reserved opening adapted to the circuit. This reserved opening adaptively fixes the circuit surface. When not in use, the iris protection structure can adaptively close unused input connectors 12 and 29, preventing sensitivity degradation caused by contaminants in these connectors.
[0034] like Figure 5 and Figure 6As shown, a ring opening 21 is provided on one side of the curved surface of the connecting column 20. The ring opening 21 consists of a columnar hole and an arc-shaped groove. A hexagonal sliding track 22 is provided inside the connecting column 20. The columnar hole of the ring opening 21 communicates with the sliding track 22. A lever 28 is fixedly provided on one side of the drive disk 26. The drive disk 26 is rotatably disposed in the columnar hole of the ring opening 21. The lever 28 slides through the arc-shaped groove of the ring opening 21.
[0035] like Figure 5 and Figure 6 As shown, the drive disc 26 has multiple channels 27 arranged in a ring array. The channels 27 are inclined. A guide post 24 is fixedly provided at the center of the side of the baffle plate 23 near the channel 27. A sliding post 25 is fixedly provided on the side of the baffle plate 23 away from the guide post 24. The sliding post 25 slides in the moving slide 22. The guide post 24 slides in the channel 27. The sliding post 25 is located at one corner of the baffle plate 23, and the guide post 24 is located at the middle of the end of the baffle plate 23 away from the center of the channel 27.
[0036] Specifically, the cylindrical hole of the annular opening 21 communicates with the hexagonal sliding track 22 inside the connecting column 20; the sliding track 22 extends axially along the connecting column 20 to guide the sliding direction of the baffle plates 23. Six baffle plates 23 are arranged in a circular array on the sliding track 22. O-rings are provided on the mounting surfaces of the connecting column 20 and the collar 14. The O-rings prevent external contaminants from entering through the collar 14. The thickness of the baffle plates 23 corresponds to the thickness of the drive disc 26 and the annular opening. The inner wall of 21 ensures there is no gap between the baffle plate 23 and the drive disc 26. The baffle plate 23 is shaped like a pentagonal plate. The lever 28 slides through the arc-shaped slot 21 and is exposed on the outer surface of the connecting post 20. The drive disc 26 has six inclined slots 27 arranged in a circular array, forming an angle of 30° with the center of the drive disc 26. The baffle plate 23 is an arc-shaped metal plate. When the lever 28 is rotated along the arc-shaped slot 21, the drive disc 26 drives the guide post 24. Sliding within the channel 27 forces the baffle plate 23 to converge towards the center or expand outward along the sliding track 22, thus closing or opening the unused input connector 12 or the reserved connector 29. The principle is similar to iris opening and closing. When it is necessary to tighten the connecting line or close the input connector 12 and the reserved connector 29, manually move the lever 28 on the surface of the connecting post 20, causing it to rotate clockwise along the arc-shaped slot 21. The drive disc 26 drives the guide post 24 to slide towards the center within the inclined channel 27, forcing the baffle plate 23 to converge towards the center along the sliding track 22, ultimately forming a closed barrier. Reversely moving the lever 28 causes the drive disc 26 to slide the guide post 24 outward, and the baffle plate 23 expands outward along the sliding track 22 under its own elasticity, releasing the closure of the input connector 12 or the reserved connector 29. This allows the line to pass between the baffle plates 23, connecting the line to the input connector 12 or the reserved connector 29.
[0037] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the protective plate 13 is installed in the slot 11 by bolts. Two different specifications of collar 14 and threaded ring 15 are fixed on the protective plate 13. The two specifications of collar 14 and threaded ring 15 are respectively set for the input connector 12 and the reserved connector 29. The threaded ring 15 is coaxially embedded in the collar 14. The two specifications of threaded ring 15 are respectively fitted onto the input connector 12 and the reserved connector 29.
[0038] like Figure 4 and Figure 5 As shown, the connecting post 20 is rotatably disposed on the side of the collar 14 away from the protective plate 13, the ratchet ring 19 is threadedly engaged with the threaded ring 15, the ratchet ring 19 is rotatably disposed between the collar 14 and the threaded ring 15, and the collar 14 locks the ratchet ring 19 by the limiting plate 17.
[0039] like Figure 3 and Figure 4 As shown, a swing opening 16 is provided on one side of the curved surface of the collar 14. A limiting plate 17 is hinged inside the swing opening 16. A spring 18 is fixed between one end of the limiting plate 17 and the inner wall of the collar 14. The limiting plate 17 is elastically connected to the collar 14 through the spring 18.
[0040] The working principle is as follows: The protection plate 13 is a rectangular metal plate, fixed to the edge of the slot 11 by four bolts, forming a closed space with the slot 11. The protection plate 13 has three rows of mounting holes, corresponding to the input connector 12 and the reserved connector 29 respectively. The three rows of mounting holes have different specifications. The top row of mounting holes and the bottom two rows correspond to the reserved connector 29 and the input connector 12 respectively. The top row of mounting holes and the bottom two rows of mounting holes are respectively equipped with two specifications of collars 14 and threaded rings 15. The input connector 12 corresponds to the large-specification collar 14, with a large threaded ring 15 coaxially embedded inside the collar 14; the reserved connector 29 corresponds to the small-specification collar 14, with a small threaded ring 15 coaxially embedded inside the collar 14. The ratchet ring 19 has an internal thread on its inner side, and the ratchet ring 19 can move axially along the threaded ring 15 by rotation, thereby locking the connection between the line and the input connector 12 or the reserved connector 29, ensuring that the input connector 12 or the reserved connector 29 is connected to the line. The connection is tight. One end of the limiting plate 17 is elastically connected to the inner wall of the collar 14 via a spring 18, and the other end abuts against the outer edge of the ratchet ring 19. When the ratchet ring 19 rotates to contact the limiting plate 17, the limiting plate 17, under the action of the spring 18, engages with the tooth groove of the ratchet ring 19, restricting its reverse rotation and achieving a locking function. When the device is subjected to vibration or impact, the vibration is transmitted to the protective plate 13, which drives the limiting plate 17 and the ratchet ring 19 to vibrate synchronously. Due to the ratchet ring 19 and the screw... The threaded ring 15 is threaded, and vibration will cause the ratchet ring 19 to have a slight tendency to rotate in the opposite direction. At this time, the limiting plate 17 is engaged in the tooth groove of the ratchet ring 19 under the action of the spring 18, preventing it from rotating in the opposite direction, thereby preventing the joint from loosening due to vibration. It should be noted that the rotation direction of the ratchet ring 19 is the same as that of the threaded ring 15, and the contact end between the limiting plate 17 and the ratchet ring 19 is set with a chamfered edge, so that the ratchet ring 19 can be triggered to engage the limiting plate 17 in the tooth groove with a slight rotation.
[0041] When the circuit needs to be replaced, loosen the bolts of the protection plate 13, remove the protection plate 13, rotate the connecting column 20 to control the ratchet ring 19 to retract axially along the threaded ring 15, and release the lock on the circuit; at the same time, rotate the drive disk 26 to control each clamp plate 23 to rotate away from the center and expand the reserved opening, so that the circuit is separated from the input connector 12 or the reserved connector 29. After replacing the circuit, rotate the connecting column 20 and the drive disk 26 in the opposite direction and reinstall the protection plate 13 to complete the circuit replacement.
[0042] It is understood that this utility model 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 this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model 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 this utility model.
Claims
1. A VHF radio frequency splitter, characterized in that, include The main body (10) of the branching device has a slot (11) on one side, and multiple input connectors (12) and multiple reserved connectors (29) are provided in the slot (11). The multiple input connectors (12) are evenly distributed in the middle of the slot (11), and the multiple reserved connectors (29) are located above the multiple input connectors (12). A vibration locking structure is detachably mounted on a slot (11). The vibration locking structure includes a protective plate (13), a limiting plate (17), a ratchet ring (19), and a connecting post (20). The protective plate (13) is detachably mounted on the slot (11), the limiting plate (17) is movably mounted on the protective plate (13), and the connecting post (20) is fixedly mounted on one side of the ratchet ring (19). The ratchet ring (19) is detachably mounted on the protective plate (13), and an iris protection structure is installed on the connecting post (20).
2. The VHF radio frequency splitter according to claim 1, characterized in that, The iris protection structure includes a baffle plate (23) and a drive disk (26). The drive disk (26) is rotatably disposed inside the connecting post (20), and the baffle plate (23) is slidably disposed between the connecting post (20) and the drive disk (26).
3. A VHF radio frequency splitter according to claim 2, characterized in that, The connecting column (20) has a ring opening (21) on one side of its curved surface. The connecting column (20) has a hexagonal sliding track (22) inside. The ring opening (21) communicates with the sliding track (22). A lever (28) is fixedly installed on one side of the drive disk (26). The drive disk (26) is rotatably installed in the ring opening (21). The lever (28) slides through the ring opening (21).
4. A VHF radio frequency splitter according to claim 3, characterized in that, The drive disk (26) has multiple channels (27) arranged in a ring array. A guide post (24) is fixedly provided at the center of the side of the baffle plate (23) near the channel (27). A sliding post (25) is fixedly provided on the side of the baffle plate (23) away from the guide post (24). The sliding post (25) slides in the moving slide (22), and the guide post (24) slides in the channel (27).
5. A VHF radio frequency splitter according to claim 1, characterized in that, The protective plate (13) is installed in the slot (11) by bolts. Two different specifications of collar (14) and threaded ring (15) are fixed on the protective plate (13). The two specifications of collar (14) and threaded ring (15) are respectively set for the input connector (12) and the reserved connector (29).
6. A VHF radio frequency splitter according to claim 5, characterized in that, The connecting post (20) is rotatably disposed on the side of the collar (14) away from the protective plate (13). The ratchet ring (19) is threadedly engaged with the threaded ring (15). The ratchet ring (19) is rotatably disposed between the collar (14) and the threaded ring (15). The collar (14) locks the ratchet ring (19) through the limiting plate (17).
7. A VHF radio frequency splitter according to claim 6, characterized in that, A swing opening (16) is provided on one side of the curved surface of the collar (14). A limiting plate (17) is hinged in the swing opening (16). A spring (18) is fixed between one end of the limiting plate (17) and the inner wall of the collar (14). The limiting plate (17) is elastically connected to the collar (14) through the spring (18).