Fixing device and ceiling antenna

Abstract

The application relates to the technical field of antennas, and provides a fixing device and a ceiling antenna. The fixing device comprises a main disc body with an upper surface and a lower surface opposite to each other; a first fixing structure arranged on the upper surface of the main disc body and comprising a ring-shaped accommodating portion and a first buckle arranged at the edge of the ring-shaped accommodating portion and used for fixing an upper conical radiator; a second fixing structure arranged on the lower surface of the main disc body and comprising a plurality of first fixing portions arranged at intervals along the circumference of the main disc body and used for fixing a horizontal vibrator; and a third fixing structure arranged on the lower surface of the main disc body and comprising a plurality of second fixing portions arranged at intervals along the circumference of the main disc body and used for fixing a lower conical radiator. In this way, the upper conical radiator, the horizontal vibrator and the lower conical radiator of the ceiling antenna are fixed on the same fixing device to form a stable relative position relationship, so that the performance of the ceiling antenna is stable, the assembly consistency is good, and the assembly efficiency is high.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and more particularly to a fixed device and a ceiling-mounted antenna. Background Technology

[0002] Ceiling-mounted antennas are a type of antenna used in mobile communication systems, primarily for indoor signal coverage. Existing biconical ceiling-mounted antennas typically include an upper conical radiator, a horizontal dipole, a lower conical radiator, an antenna radome, and a base plate. The upper and lower conical radiators are fixed together by an intermediate connector, and the horizontal dipole is connected and fixed to the lower conical radiator by several support columns.

[0003] For example, the patent application number CN201610709337.9 provides a ceiling antenna, which includes an outer cover and a vertical high- and low-frequency radiating element, a horizontal high-frequency element, a reflective cone, and a horizontal low-frequency element arranged in layers inside it. The vertical high- and low-frequency radiating elements are connected to the reflective cone by an intermediate connecting column and are fixed by the intermediate connecting column. The horizontal high-frequency element is provided with several support columns one, which are connected and fixed to the reflective cone. The horizontal low-frequency element is provided with several support columns two, which are connected and fixed to the reflective cone.

[0004] However, the assembly structure of this type of ceiling antenna, consisting of an upper conical radiator, a horizontal vibrator, and a lower conical radiator, is complex and the relative positional relationship is unstable. This affects the consistency and efficiency of the assembly process and the radiation performance of the assembled ceiling antenna. Utility Model Content

[0005] To solve the above-mentioned technical problems, or at least partially solve them, this application provides a fixing device and a ceiling antenna. By fixing the upper conical radiator, horizontal vibrator and lower conical radiator of the ceiling antenna on the same fixing device, a stable relative positional relationship is formed, which makes the ceiling antenna perform stably, has good assembly consistency and high assembly efficiency.

[0006] The first aspect of this application provides a mounting device for a ceiling-mounted antenna, comprising:

[0007] The main body has an upper surface and a lower surface that are opposite each other;

[0008] The first fixing structure is provided on the upper surface of the main plate body, including an annular receiving part and a first buckle provided at the edge of the annular receiving part, for fixing the upper conical radiator of the ceiling antenna;

[0009] The second fixing structure is provided on the lower surface of the main disk body and includes a plurality of first fixing parts spaced apart along the circumference of the main disk body for fixing the horizontal vibrator of the ceiling antenna.

[0010] The third fixing structure is located on the lower surface of the main plate and includes a plurality of second fixing parts spaced apart along the circumference of the main plate for fixing the lower conical radiator of the ceiling antenna.

[0011] In some embodiments, a plurality of support ribs are provided circumferentially at intervals on the inner wall surface of the annular receiving portion, and each support rib has a support surface that slopes downward toward the central region of the annular receiving portion.

[0012] In some embodiments, the number of the first buckles is at least two, and they are spaced apart circumferentially along the edge of the annular receiving portion. The upper end of each first buckle has a first fastening portion protruding toward the central region of the annular receiving portion.

[0013] In some embodiments, the plurality of first fixing parts include a plurality of first limiting posts and a plurality of second buckles. The plurality of first limiting posts and the plurality of second buckles are all arranged at intervals along the circumference of the main disc. The plurality of second buckles are used to pass through the horizontal vibrator and fasten to the lower surface of the horizontal vibrator. The plurality of first limiting posts are used to abut against and limit the upper surface of the horizontal vibrator.

[0014] In some embodiments, the lower end of each of the second latches has a second fastening portion protruding toward or away from the central region of the main disc body;

[0015] And / or, each of the first limiting posts includes a first pillar portion and a first guide portion, the upper end of the first pillar portion is connected to the main disc body, the lower end of the first pillar portion is connected to the first guide portion, and the lower end of the first pillar portion has a first limiting surface surrounding the first guide portion, and the first limiting surfaces of each of the first limiting posts are located on the same plane.

[0016] In some embodiments, the plurality of second fixing parts include a plurality of second limiting posts and a plurality of third buckles. The plurality of second limiting posts and the plurality of third buckles are all arranged circumferentially around the main disc body. The plurality of third buckles are used to pass through the lower conical radiator and fasten to the lower surface of the lower conical radiator. The plurality of second limiting posts are used to abut against and limit the upper surface of the lower conical radiator.

[0017] In some embodiments, the lower end of each of the third latches has a third fastening portion protruding toward or away from the central region of the main disc body;

[0018] And / or, each of the second limiting posts includes a second post portion and a second guide portion, the upper end of the second post portion is connected to the main disc body, the lower end of the second post portion is connected to the second guide portion, and the lower end of the second post portion has a second limiting surface surrounding the second guide portion, the second limiting surface being an inclined surface or arc surface that slopes upward toward the central region of the main disc body.

[0019] In some embodiments, the plurality of first fixing parts include a plurality of first limiting posts and a plurality of second buckles, and the plurality of second fixing parts include a plurality of second limiting posts and a plurality of third buckles;

[0020] The second limiting post and the third buckle are both located within the inner area of ​​the first limiting post and the second buckle. The length of the second limiting post extending downward relative to the lower surface of the main plate is greater than the length of the first limiting post extending downward relative to the lower surface of the main plate. The length of the third buckle extending downward relative to the lower surface of the main plate is greater than the length of the second buckle extending downward relative to the lower surface of the main plate.

[0021] In some embodiments, a connecting protrusion is provided in the middle region of the lower surface of the main disk body, and an internal thread is provided on the connecting protrusion, which is used to be threadedly connected and fixed with the power supply connector.

[0022] A second aspect of this application provides a ceiling-mounted antenna, comprising an upper conical radiator, a horizontal vibrator, a lower conical radiator, and a fixing device as described in any of the preceding claims;

[0023] The upper conical radiator is fixed to the fixing device by a first fixing structure, the horizontal oscillator is fixed to the fixing device by a second fixing structure, and the lower conical radiator is fixed to the fixing device by a third fixing structure.

[0024] The technical solution provided in this application has the following advantages compared with the prior art:

[0025] The fixing device and ceiling-mounted antenna provided in this application, by setting a first fixing structure on the upper surface of the main plate of the fixing device, and simultaneously setting a second fixing structure and a third fixing structure on the lower surface of the main plate, fix the upper conical radiator of the ceiling-mounted antenna to the upper surface of the main plate through the first fixing structure, fix the horizontal dipole of the ceiling-mounted antenna to the lower surface of the main plate through the second fixing structure, and fix the lower conical radiator of the ceiling-mounted antenna to the lower surface of the main plate through the third fixing structure. This achieves the fixing of the upper conical radiator, horizontal dipole, and lower conical radiator of the ceiling-mounted antenna onto the same fixing device, forming a stable relative positional relationship, resulting in stable performance of the ceiling-mounted antenna, good assembly consistency, and high assembly efficiency. The first fixing structure includes a ring... The annular receiving portion and the first buckle located at the edge of the annular receiving portion are used to receive the upper conical radiator and to prevent the upper conical radiator from detaching from the annular receiving portion, thereby fixing the upper conical radiator to the fixing device; the second fixing structure includes a plurality of first fixing portions spaced apart along the circumference of the main plate to fix the horizontal vibrator, thereby fixing the horizontal vibrator to the fixing device; the third fixing structure includes a plurality of second fixing portions spaced apart along the circumference of the main plate to fix the lower conical radiator, thereby fixing the lower conical radiator to the fixing device, thus fixing the upper conical radiator, the horizontal vibrator and the lower conical radiator of the ceiling antenna to the same fixing device. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the ceiling antenna provided in the embodiments of this application;

[0029] Figure 2 A schematic diagram of the structure of the upper conical radiator, horizontal vibrator, and lower conical radiator of the ceiling antenna provided in this application embodiment after being assembled by a fixing device;

[0030] Figure 3 This is a schematic diagram of the structure of the fixing device provided in the embodiments of this application from a frontal view.

[0031] Figure 4This is a structural schematic diagram of the fixing device provided in the embodiments of this application from a bottom-view perspective;

[0032] Figure 5 A schematic diagram of the upper conical radiator of the ceiling-mounted antenna provided in an embodiment of this application;

[0033] Figure 6 A schematic diagram of the assembly structure of the upper conical radiator and fixing device of the ceiling antenna provided in the embodiment of this application;

[0034] Figure 7 This is a schematic diagram of the assembly structure of the horizontal vibrator and fixing device of the ceiling antenna provided in the embodiments of this application;

[0035] Figure 8 A schematic diagram of the structure of the lower conical radiator of the ceiling antenna provided in the embodiment of this application, assembled with the fixing device from the main viewpoint.

[0036] Figure 9 A schematic diagram of the structure of the lower conical radiator of the ceiling antenna provided in this application embodiment, assembled with the fixing device from a bottom-view perspective;

[0037] Figure 10 This is a schematic diagram of the feeding connector of the ceiling antenna provided in the embodiments of this application;

[0038] Figure 11 This is a schematic diagram of the assembly structure of the feed connector and fixing device of the ceiling antenna provided in the embodiments of this application.

[0039] Among them, 1. Fixing device; 10. Main disc body; 11. Annular receiving part; 12. First buckle; 13. Support rib; 14. First limiting post; 141. First column part; 142. First guide part; 143. First limiting surface; 15. Second buckle; 16. Second limiting post; 161. Second column part; 162. Second guide part; 163. Second limiting surface; 17. Third buckle; 18. Connecting protrusion; 181. Internal thread part;

[0040] 2. Upper conical radiating body; 21. Bayonet;

[0041] 3. Horizontal vibrator; 31. First positioning hole; 32. First snap-fit ​​hole;

[0042] 4. Lower conical radiator; 41. Second positioning hole; 42. Second snap-fit ​​hole;

[0043] 5. Antenna radome;

[0044] 6. Base plate;

[0045] 7. Cable assemblies;

[0046] 8. Power supply connector; 81. Main connecting post; 82. Connecting nut. Detailed Implementation

[0047] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0048] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0049] The following reference Figures 1 to 11 As shown, the fixing device and ceiling antenna provided in the embodiments of this application will be described in detail.

[0050] Reference Figure 1 The diagram shown is a schematic representation of the overall structure of the ceiling-mounted antenna provided in this embodiment. The ceiling-mounted antenna includes an upper conical radiator 2, a horizontal vibrator 3, a lower conical radiator 4, and a fixing device 1. The upper conical radiator 2, the horizontal vibrator 3, and the lower conical radiator 4 are all fixed on the fixing device 1.

[0051] In addition, the ceiling-mounted antenna also includes structures such as an antenna cover 5, a base plate 6, and a cable assembly 7. The upper conical radiator 2, the horizontal vibrator 3, and the lower conical radiator 4 are assembled into an assembly by a fixing device 1. The assembly is placed and fixed on the base plate 6. The antenna cover 5 covers the assembly from above and is fixedly connected to the base plate 6, thus enclosing the assembly within the mounting cavity formed by the antenna cover 5 and the base plate 6. Specifically, the antenna cover 5 and the base plate 6 can be fixed by means of snap-fit ​​connection, screw connection, etc. The cable assembly 7 passes through the base plate 6 and is electrically connected to the upper conical radiator 2, the lower conical radiator 4, etc., in the mounting cavity to realize power and signal transmission.

[0052] Reference Figure 2 The diagram shows the structure of the ceiling-mounted antenna provided in this embodiment after assembly by the fixing device 1, consisting of an upper conical radiator 2, a horizontal vibrator 3, and a lower conical radiator 4. The upper conical radiator 2 is mounted and fixed to the fixing device 1 from above, while the horizontal vibrator 3 and the lower conical radiator 4 are mounted and fixed to the fixing device 1 from below. After assembly by the fixing device 1, the upper conical radiator 2, the horizontal vibrator 3, and the lower conical radiator 4 form a stable relative positional relationship.

[0053] Reference Figure 3 and Figure 4As shown in some embodiments of this application, a fixing device 1 is provided, including a main plate 10 and a first fixing structure, a second fixing structure, and a third fixing structure disposed on the main plate 10. The main plate 10 has an upper surface and a lower surface that are opposite to each other; the first fixing structure is disposed on the upper surface of the main plate 10 for fixing the upper conical radiator 2 of the ceiling-mounted antenna; the second fixing structure is disposed on the lower surface of the main plate 10 for fixing the horizontal vibrator 3 of the ceiling-mounted antenna; and the third fixing structure is disposed on the lower surface of the main plate 10 for fixing the lower conical radiator 4 of the ceiling-mounted antenna.

[0054] In other words, the upper conical radiator 2 of the ceiling antenna can be fixed to the fixing device 1 by the first fixing structure provided on the upper surface of the main plate 10, the horizontal vibrator 3 of the ceiling antenna can be fixed to the fixing device 1 by the second fixing structure provided on the lower surface of the main plate 10, and the lower conical radiator 4 of the ceiling antenna can be fixed to the fixing device 1 by the third fixing structure provided on the lower surface of the main plate 10. This achieves the fixing of the upper conical radiator 2, the horizontal vibrator 3, and the lower conical radiator 4 of the ceiling antenna on the same fixing device 1, forming a stable relative positional relationship, which makes the ceiling antenna perform stably, has good assembly consistency, and high assembly efficiency.

[0055] Among them, reference Figure 3 , Figure 5 and Figure 6 As shown, the first fixing structure includes an annular receiving portion 11 and a first buckle 12 disposed at the edge of the annular receiving portion 11; so as to use the annular receiving portion 11 to receive the upper conical radiator 2, and use the first buckle 12 to restrict the upper conical radiator 2 from being dislodged from the annular receiving portion 11, thereby fixing the upper conical radiator 2 on the fixing device 1.

[0056] Reference Figure 4 and Figure 7 As shown, the second fixing structure includes a plurality of first fixing parts spaced circumferentially along the main disc 10; these first fixing parts are used to fix the horizontal vibrator 3, thereby fixing the horizontal vibrator 3 to the fixing device 1. Specifically, the plurality of first fixing parts may include a plurality of first limiting posts 14 and a plurality of second latches 15, using a combination of limiting posts for positioning and latches for fastening to fix the horizontal vibrator 3 to the fixing device 1, as described in detail below. Of course, the plurality of first fixing parts can also adopt other structures. For example, the plurality of first fixing parts may also include a plurality of first limiting posts 14 and a plurality of first screw posts, using a combination of limiting posts for positioning and screws for fastening to fix the horizontal vibrator 3 to the fixing device 1. The specific structure of the plurality of first fixing parts is not limited, as long as it enables the horizontal vibrator 3 to be fixed to the fixing device 1 using the plurality of first fixing parts.

[0057] Reference Figure 4 , Figure 8 and Figure 9 As shown, the third fixing structure includes a plurality of second fixing parts spaced circumferentially along the main disc body 10; these second fixing parts are used to fix the lower conical radiator 4, thereby fixing the lower conical radiator 4 onto the fixing device 1. Specifically, the plurality of second fixing parts may include a plurality of second limiting posts 16 and a plurality of third latches 17, using a combination of limiting posts for positioning and latches for fastening, to fix the lower conical radiator 4 onto the fixing device 1, as described in detail below. Of course, the plurality of second fixing parts can also adopt other structures. For example, the plurality of second fixing parts may also include a plurality of second limiting posts and a plurality of second screw posts, using a combination of limiting posts for positioning and screws for fastening, to fix the lower conical radiator 4 onto the fixing device 1. The specific structure of the plurality of second fixing parts is not limited, as long as it enables the lower conical radiator 4 to be fixed onto the fixing device 1 using the plurality of second fixing parts.

[0058] It should be noted that the fixing device 1 provided in this application embodiment can be an injection-molded integral part, which makes the processing and molding of the fixing device 1 simple and the dimensional accuracy high, so as to better ensure that after the upper conical radiator 2, the horizontal vibrator 3 and the lower conical radiator 4 are assembled on the fixing device 1, the relative positions between the components are stable, the assembly consistency is good, and the performance is stable.

[0059] To achieve the fixation of the upper conical radiator 2 on the fixing device 1, in some embodiments, reference is made to... Figure 3 , Figure 5 and Figure 6 As shown, the upper surface of the main body 10 is provided with a first fixing structure. The first fixing structure includes an annular accommodating part 11 and a first buckle 12 provided at the edge of the annular accommodating part 11. The inner periphery of the annular accommodating part 11 forms an accommodating cavity. The upper conical radiator 2 is accommodated in the accommodating cavity. The first buckle 12 is fastened to the upper conical radiator 2 to prevent the upper conical radiator 2 from falling out of the accommodating cavity.

[0060] To ensure the limiting effect of the first buckle 12 on the upper conical radiator 2, a notch 21 is provided at the upper edge of the upper conical radiator 2. The first buckle 12 is fastened to the notch 21 of the upper conical radiator 2, which not only restricts the upper conical radiator 2 from coming out of the accommodating cavity, but also prevents the upper conical radiator 2 from rotating in the accommodating cavity, thereby ensuring the firmness of the upper conical radiator 2.

[0061] In specific implementation, there can be two first latches 12, which are circumferentially spaced along the edge of the annular receiving portion 11. Each first latch 12 has a first fastening portion protruding towards the central area of ​​the annular receiving portion 11 at its upper end. This allows the first fastening portions of both first latches 12 to simultaneously limit the upper conical radiator 2, thereby improving the stability of the upper conical radiator 2 within the receiving cavity. Of course, the number of first latches 12 is not limited to two; it can also be three, four, or more.

[0062] In some embodiments, refer to Figure 3 , Figure 5 and Figure 6 As shown, a plurality of support ribs 13 are provided circumferentially on the inner wall surface of the annular receiving portion 11, and each support rib 13 has a support surface that slopes downward toward the central region of the annular receiving portion 11.

[0063] This configuration allows the supporting surfaces of multiple supporting ribs 13 to collectively form a conical supporting surface. Specifically, the slope of the conical supporting surface can be adapted to the slope of the conical surface of the upper conical radiator 2, so as to effectively support the conical surface of the upper conical radiator 2 using the conical supporting surface, increasing the contact area between the conical supporting surface and the upper conical radiator 2, thereby improving the stability of the support for the upper conical radiator 2. In specific implementations, the number of supporting ribs 13 can be three, four, or more.

[0064] Furthermore, it should be noted that, in order to facilitate the observation of the upper conical radiator 2 installed in the annular accommodating part 11 during the assembly process, multiple hollow areas can be provided on the annular accommodating part 11 at intervals along the circumference; and by providing multiple hollow areas, the amount of material used in the fixing device 1 can be reduced, thus saving costs.

[0065] To achieve the fixation of the horizontal vibrator 3 on the fixing device 1, in some embodiments, reference is made to... Figure 4 and Figure 7 As shown, the lower surface of the main disc 10 is provided with a second fixing structure. The second fixing structure includes a plurality of first limiting posts 14 and a plurality of second buckles 15. The plurality of first limiting posts 14 and the plurality of second buckles 15 are all arranged at intervals along the circumference of the main disc 10. The plurality of second buckles 15 are used to pass through the horizontal vibrator 3 and fasten to the lower surface of the horizontal vibrator 3. The plurality of first limiting posts 14 are used to abut against and limit the upper surface of the horizontal vibrator 3.

[0066] It should be understood that, in order to allow multiple second latches 15 to pass through the horizontal vibrator 3, multiple first latching holes 32 can be provided circumferentially at intervals on the horizontal vibrator 3, with each first latching hole 32 corresponding to a single second latch 15. During assembly, the horizontal vibrator 3 is installed on the fixing device 1 from below. Multiple second latches 15 pass through their corresponding first latching holes 32 and are fastened to the lower surface of the horizontal vibrator 3, thus hooking the horizontal vibrator 3 in place. Simultaneously, multiple first limiting posts 14 abut against the lower surface of the horizontal vibrator 3, thereby fixing the horizontal vibrator 3 to the fixing device 1 through the cooperation of the second latches 15 and the first limiting posts 14. This combination of limiting post positioning and latch fastening makes the assembly of the horizontal vibrator 3 and the fixing device 1 convenient and efficient.

[0067] In specific implementation, the number of first limiting posts 14 can be two, three, four or more, and the number of second latches 15 can be two, three, four or more. Multiple first limiting posts 14 and multiple second latches 15 can be arranged alternately along the circumference of the main disc 10, which can ensure the balance of force on the horizontal vibrator 3 and improve the stability of the horizontal vibrator 3 on the fixing device 1.

[0068] In some embodiments, refer to Figure 4 and Figure 7 As shown, each second latch 15 has a second fastening portion protruding towards the central region of the main disc 10 at its lower end. This second fastening portion hooks onto the lower surface of the horizontal vibrator 3, and through the interaction of multiple second latches 15, prevents the second fastening portion from disengaging from the first fastening hole 32 of the horizontal vibrator 3. Alternatively, in a specific implementation, each second latch 15 may also have a second fastening portion protruding away from the central region of the main disc 10 at its lower end.

[0069] In some embodiments, refer to Figure 4 and Figure 7 As shown, each first limiting post 14 includes a first post body 141 and a first guide part 142. The upper end of the first post body 141 is connected to the main disk body 10, and the lower end of the first post body 141 is connected to the first guide part 142. The lower end of the first post body 141 has a first limiting surface 143 surrounding the first guide part 142. The first limiting surfaces 143 of each first limiting post 14 are all located on the same plane.

[0070] It should be understood that, in order to achieve the limiting cooperation between the first limiting post 14 and the horizontal vibrator 3, the horizontal vibrator 3 may be provided with a plurality of first positioning holes 31 spaced apart along the circumference. In specific assembly, the plurality of first positioning holes 31 of the horizontal vibrator 3 are aligned with the first guide portions 142 of the plurality of first limiting posts 14, so that the plurality of first guide portions 142 pass through the corresponding first positioning holes 31. At the same time, the plurality of second buckles 15 pass through the plurality of first snap-fit ​​holes 32 of the horizontal vibrator 3 and hook the horizontal vibrator 3. The first limiting surfaces 143 of the plurality of first limiting posts 14 abut against the upper surface of the horizontal vibrator 3 for limiting, thereby completing the fixation of the horizontal vibrator 3.

[0071] Of course, in specific implementations, the second fixing structure is not limited to including multiple first limiting posts 14 and multiple second buckles 15. That is to say, it is not limited to using a combination of limiting posts for positioning and buckles for fastening to fix the horizontal vibrator 3 to the fixing device 1; other methods can also be used. For example, the second fixing structure includes multiple first limiting posts 14 and multiple first screw posts. The horizontal vibrator 3 is provided with multiple first positioning holes 31 and multiple first screw holes. The multiple first limiting posts 14 pass through the corresponding first positioning holes 31 for positioning. The multiple first screw posts are aligned with the multiple first screw holes. The horizontal vibrator 3 is fixed to the fixing device 1 by fasteners passing through the first screw posts and corresponding first screw holes. Of course, the second fixing structure can also adopt other structural forms, as long as it can achieve the goal of fixing the horizontal vibrator 3 to the fixing device 1.

[0072] To achieve the fixation of the lower conical radiator 4 on the fixing device 1, in some embodiments, reference is made to... Figure 4 , Figure 8 and Figure 9 As shown, the lower surface of the main disc 10 is provided with a third fixing structure, which includes multiple second limiting posts 16 and multiple third buckles 17. The multiple second limiting posts 16 and multiple third buckles 17 are all spaced apart along the circumference of the main disc 10. The multiple third buckles 17 are used to pass through the lower conical radiator 4 and fasten to the lower surface of the lower conical radiator 4. The multiple second limiting posts 16 are used to abut and limit the upper surface of the lower conical radiator 4.

[0073] It should be understood that, in order to allow multiple third latches 17 to pass through the lower conical radiator 4, multiple second latching holes 42 can be provided circumferentially at intervals on the lower conical radiator 4, with each second latching hole 42 corresponding to a third latch 17. During assembly, the lower conical radiator 4 is installed on the fixing device 1 from below. Multiple third latches 17 pass through their corresponding second latching holes 42 and latch onto the lower surface of the lower conical radiator 4, thus hooking the lower conical radiator 4 in place. Simultaneously, multiple second limiting posts 16 abut against the lower surface of the lower conical radiator 4 for limiting. Through the cooperation of the third latches 17 and the second limiting posts 16, the lower conical radiator 4 is fixed to the fixing device 1. This combination of limiting post positioning and latching makes the assembly of the lower conical radiator 4 and the fixing device 1 convenient and efficient.

[0074] In practice, the number of second limiting posts 16 can be two, three, four, or more, and the number of third latches 17 can be two, three, four, or more. Multiple second limiting posts 16 and multiple third latches 17 can be arranged alternately along the circumference of the main disc 10, which can ensure the balance of force on the lower conical radiator 4 and improve the stability of the lower conical radiator 4 on the fixing device 1.

[0075] In some embodiments, refer to Figure 4 and Figure 9 As shown, each third latch 17 has a third fastening portion protruding towards the central region of the main disc 10 at its lower end. This third fastening portion hooks onto the lower surface of the lower conical radiator 4, and through the interaction of multiple third latches 17, prevents the third fastening portion from disengaging from the second fastening hole 42 of the lower conical radiator 4. Alternatively, in a specific implementation, each third latch 17 may also have a third fastening portion protruding away from the central region of the main disc 10 at its lower end.

[0076] In some embodiments, refer to Figure 4 and Figure 9 As shown, each second limiting post 16 includes a second post portion 161 and a second guide portion 162. The upper end of the second post portion 161 is connected to the main disk body 10, and the lower end of the second post portion 161 is connected to the second guide portion 162. The lower end of the second post portion 161 has a second limiting surface 163 surrounding the second guide portion 162. The second limiting surface 163 is an inclined surface or arc surface that slopes upward toward the central region of the main disk body 10.

[0077] How to configure it so that the second limiting surfaces 163 of multiple second limiting posts 16 together form a conical limiting surface? Specifically, the curvature (or tilt angle) of the conical limiting surface can be adapted to the curvature of the conical surface of the lower conical radiator 4, so as to effectively limit the lower conical radiator 4 using the conical limiting surface, increase the contact area between the conical limiting surface and the lower conical radiator 4, thereby improving the reliability of limiting the lower conical radiator 4.

[0078] It should be understood that, in order to achieve the limiting engagement between the second limiting post 16 and the lower conical radiator 4, the lower conical radiator 4 may be provided with a plurality of second positioning holes 41 spaced apart along the circumference. During assembly, the plurality of second positioning holes 41 of the lower conical radiator 4 are aligned with the second guide portions 162 of the plurality of second limiting posts 16, so that the plurality of second guide portions 162 pass through the corresponding second positioning holes 41. Simultaneously, a plurality of third latches 17 pass through the plurality of second engaging holes 42 of the lower conical radiator 4 and hook onto the lower conical radiator 4. The second limiting surfaces 163 of the plurality of second limiting posts 16 abut against the upper surface of the lower conical radiator 4, thus fixing the lower conical radiator 4.

[0079] Of course, in specific implementations, the third fixing structure is not limited to including multiple second limiting posts 16 and multiple third buckles 17. That is to say, it is not limited to using a combination of limiting posts for positioning and buckles for fastening to fix the lower conical radiator 4 to the fixing device 1; other methods can also be used. For example, the third fixing structure includes multiple second limiting posts 16 and multiple second screw posts. The lower conical radiator 4 is provided with multiple second positioning holes 41 and multiple second screw holes. The multiple second limiting posts 16 pass through the corresponding second positioning holes 41 for positioning. The multiple second screw posts are aligned with the multiple second screw holes. The lower conical radiator 4 is fixed to the fixing device 1 by fasteners passing through the second screw posts and corresponding second screw holes. Of course, the third fixing structure can also adopt other structural forms, as long as it can achieve the goal of fixing the lower conical radiator 4 to the fixing device 1.

[0080] It should be understood that, since both the horizontal vibrator 3 and the lower conical radiator 4 are fixed below the main plate 10 of the fixing device 1, in order to avoid interference between the horizontal vibrator 3 and the lower conical radiator 4 during assembly on the fixing device 1, the second and third fixing structures located on the lower surface of the main plate 10 need to be staggered, that is, the multiple first fixing parts and the multiple second fixing parts need to be staggered. Specifically, for the scheme in which the multiple first fixing parts include multiple first limiting posts 14 and multiple second buckles 15, and the multiple second fixing parts include multiple second limiting posts 16 and multiple third buckles 17, the multiple first limiting posts 14 and the multiple second buckles 15 need to be staggered from the multiple second limiting posts 16 and the multiple third buckles 17.

[0081] In some embodiments, refer to Figure 4 , Figures 7 to 9 As shown, the second limiting post 16 and the third buckle 17 are both located in the inner area of ​​the first limiting post 14 and the second buckle 15. The length of the second limiting post 16 extending downward relative to the lower surface of the main plate 10 is greater than the length of the first limiting post 14 extending downward relative to the lower surface of the main plate 10. The length of the third buckle 17 extending downward relative to the lower surface of the main plate 10 is greater than the length of the second buckle 15 extending downward relative to the lower surface of the main plate 10.

[0082] It should be understood that, in order to avoid assembly interference between the horizontal vibrator 3 and the lower conical radiator 4, a clearance hole is provided in the middle region of the horizontal vibrator 3, so that after the horizontal vibrator 3 is fixed to the fixing device 1 by the first limiting post 14 and the second buckle 15, the second limiting post 16 and the third buckle 17 on the fixing device 1 can pass through the clearance hole on the horizontal vibrator 3, so as to fix the lower conical radiator 4 to the fixing device 1 by the second limiting post 16 and the third buckle 17.

[0083] In addition, it should be noted that, in order to facilitate the ejection of the fixing device 1 from the mold during the injection molding process, openings can be provided on the main disc body 10 at positions corresponding to structural features such as the second buckle 15 and the third buckle 17.

[0084] In some embodiments, refer to Figure 4 , Figure 10 and Figure 11 As shown, a connecting protrusion 18 is provided in the middle area of ​​the lower surface of the main disk body 10. The connecting protrusion 18 is provided with an internal thread 181, which is used to be threadedly connected and fixed with the power supply connector 8.

[0085] This configuration allows the power supply connector 8 to be fixed to the fixing device 1, so that the cable assembly 7 can be electrically connected to the upper conical radiator 2, the lower conical radiator 4, etc. using the power supply connector 8.

[0086] In specific implementation, the internal thread structure (or thread structure) can be directly formed on the connecting protrusion 18 to form the internal thread portion 181, or the internal thread portion 181 can be formed by inserting a nut into the connecting protrusion 18.

[0087] It should be noted that the internal thread portion 181 can partially protrude from the lower end face of the connecting protrusion 18. A limiting hole corresponding to the lower end of the internal thread portion 181 is provided on the lower conical radiator 4. After the lower conical radiator 4 is assembled on the fixing device 1, the internal thread portion 181 on the connecting protrusion 18 can be partially inserted into the limiting hole on the lower conical radiator 4. The power supply connector 8 includes a main connecting post 81 and a connecting nut 82 sleeved on and threadedly connected to the main connecting post 81. The main connecting post 81 is screwed onto the connecting protrusion 18 and threadedly fastened to the internal thread portion 181 of the connecting protrusion 18. Rotating the connecting nut 82 causes the connecting nut 82 to press against the lower surface of the lower conical radiator 4, thereby ensuring the stability of the connection between the components.

[0088] It should be understood that the main connecting post 81 of the power supply connector 8 can be a hollow post, and the cable assembly 7 passes through the hollow cavity of the main connecting post 81 and is welded to the main connecting post 81. The specific connection structure between the cable assembly 7 and the power supply connector 8, as well as the specific connection structure between the cable assembly 7 and the upper conical radiator 2, etc., can be designed using conventional techniques, and this application does not impose specific limitations.

[0089] Reference Figure 1 and Figure 2 As shown, some other embodiments of this application provide a ceiling-mounted antenna, including an upper conical radiator 2, a horizontal vibrator 3, a lower conical radiator 4, and a fixing device 1 as described in any of the above embodiments; the upper conical radiator 2 is fixed to the fixing device 1 by a first fixing structure, the horizontal vibrator 3 is fixed to the fixing device 1 by a second fixing structure, and the lower conical radiator 4 is fixed to the fixing device 1 by a third fixing structure.

[0090] The ceiling-mounted antenna provided in this application includes the fixing device 1 of any of the above embodiments, and therefore has the beneficial effects of the fixing device 1 of any of the above embodiments, which will not be repeated here.

[0091] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0092] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixing device for a ceiling-mounted antenna, characterized in that, include: The main body has an upper surface and a lower surface that are opposite each other; The first fixing structure is provided on the upper surface of the main plate body, including an annular receiving part and a first buckle provided at the edge of the annular receiving part, for fixing the upper conical radiator of the ceiling antenna; The second fixing structure is provided on the lower surface of the main disk body and includes a plurality of first fixing parts spaced apart along the circumference of the main disk body for fixing the horizontal vibrator of the ceiling antenna. The third fixing structure is located on the lower surface of the main plate and includes a plurality of second fixing parts spaced apart along the circumference of the main plate for fixing the lower conical radiator of the ceiling antenna.

2. The fixing device according to claim 1, characterized in that, Multiple support ribs are provided circumferentially at intervals on the inner wall surface of the annular receiving portion, and each support rib has a support surface that slopes downward toward the central region of the annular receiving portion.

3. The fixing device according to claim 2, characterized in that, The number of the first buckles is at least two, and they are spaced apart circumferentially along the edge of the annular receiving portion. The upper end of each first buckle has a first fastening portion protruding toward the central region of the annular receiving portion.

4. The fixing device according to claim 1, characterized in that, The plurality of first fixing parts include a plurality of first limiting posts and a plurality of second buckles. The plurality of first limiting posts and the plurality of second buckles are all arranged at intervals along the circumference of the main disc. The plurality of second buckles are used to pass through the horizontal vibrator and fasten to the lower surface of the horizontal vibrator. The plurality of first limiting posts are used to abut against and limit the upper surface of the horizontal vibrator.

5. The fixing device according to claim 4, characterized in that, Each of the second buckles has a second fastening portion at its lower end that protrudes toward or away from the central area of ​​the main disc body; And / or, each of the first limiting posts includes a first pillar portion and a first guide portion, the upper end of the first pillar portion is connected to the main disc body, the lower end of the first pillar portion is connected to the first guide portion, and the lower end of the first pillar portion has a first limiting surface surrounding the first guide portion, and the first limiting surfaces of each of the first limiting posts are located on the same plane.

6. The fixing device according to claim 1, characterized in that, The plurality of second fixing parts include a plurality of second limiting posts and a plurality of third buckles. The plurality of second limiting posts and the plurality of third buckles are all arranged at intervals along the circumference of the main disc body. The plurality of third buckles are used to pass through the lower conical radiator and fasten to the lower surface of the lower conical radiator. The plurality of second limiting posts are used to abut against and limit the upper surface of the lower conical radiator.

7. The fixing device according to claim 6, characterized in that, Each of the third buckles has a third fastening portion protruding toward or away from the central area of ​​the main disc body at its lower end; And / or, each of the second limiting posts includes a second post portion and a second guide portion, the upper end of the second post portion is connected to the main disc body, the lower end of the second post portion is connected to the second guide portion, and the lower end of the second post portion has a second limiting surface surrounding the second guide portion, the second limiting surface being an inclined surface or arc surface that slopes upward toward the central region of the main disc body.

8. The fixing device according to any one of claims 1 to 7, characterized in that, The plurality of first fixing parts include a plurality of first limiting posts and a plurality of second buckles, and the plurality of second fixing parts include a plurality of second limiting posts and a plurality of third buckles; The second limiting post and the third buckle are both located within the inner area of ​​the first limiting post and the second buckle. The length of the second limiting post extending downward relative to the lower surface of the main plate is greater than the length of the first limiting post extending downward relative to the lower surface of the main plate. The length of the third buckle extending downward relative to the lower surface of the main plate is greater than the length of the second buckle extending downward relative to the lower surface of the main plate.

9. The fixing device according to any one of claims 1 to 7, characterized in that, The lower surface of the main disk body has a connecting protrusion in the middle area, and the connecting protrusion has an internal thread, which is used to be threadedly connected and fixed with the power supply connector.

10. A ceiling-mounted antenna, characterized in that, It includes an upper conical radiator, a horizontal oscillator, a lower conical radiator, and a fixing device as described in any one of claims 1 to 9; The upper conical radiator is fixed to the fixing device by a first fixing structure, the horizontal oscillator is fixed to the fixing device by a second fixing structure, and the lower conical radiator is fixed to the fixing device by a third fixing structure.

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