A UHF dual-band broadband composite omnidirectional antenna

Abstract

The utility model discloses a UHF dual-band broadband composite omnidirectional antenna, comprising a substrate, wherein the upper surface and the lower surface of the substrate are both fixedly connected with bosses, the outer surface of the boss is provided with a rotating hole, the inner wall of the rotating hole is movably connected with a damping shaft, one end of the damping shaft is fixedly connected with a sleeve, and the UHF dual-band broadband composite omnidirectional antenna can autonomously adjust the size of a space in the sleeve when the omnidirectional antenna is in use, and the space is a heat dissipation space, and the size of the heat dissipation space can be changed by rotating an outer shell on the sleeve and changing the position of the outer shell. Since the bottom of the sleeve and the substrate are not in contact, the heat dissipation space is not closed, and the bottom of the sleeve can facilitate air circulation. In order to improve the heat dissipation effect, the sleeve can be rotated to rotate the damping shaft in the rotating hole, so that the sleeve is in an inclined state to facilitate air flow and heat outflow, thereby providing heat dissipation efficiency and avoiding the problem that the signal strength decreases due to the increase in temperature and the decrease in antenna power.

Description

Technical Field

[0001] The utility model relates to the technical field of omnidirectional antennas, in particular to a UHF dual-band broadband composite omnidirectional antenna. Background Art

[0002] Antenna composite technology combines two or more antennas covering different frequency bands, while the electrical performance of each antenna remains basically unchanged. They can maintain their own interfaces or use a multi-way coupler to combine them into one interface. In the former, each antenna can work independently, but the structure is an integral whole, which is convenient for transportation, installation, use and disassembly. In the latter, it can be used as a pair of antennas, but the covered frequency band is the collection of the original antennas, and the working frequency band is greatly widened.

[0003] After searching, a UHF / VHF broadband omnidirectional biconical antenna is disclosed in the Chinese Utility Model Patent Publication No. CN204720538U. A hollow metal support tube is arranged on the base, a coaxial feeder is arranged in the metal support tube, and a conical upper radiator and a lower radiator are arranged on the support tube in a mirror-symmetrical manner with an upper and lower structure. The upper end of the coaxial feeder is passed through the through hole on the metal support tube and is respectively connected to the upper radiator and the lower radiator, and the lower end is connected to the coaxial socket on the base, which effectively shields the influence of the outer skin current of the coaxial feeder on the radiation performance of the antenna. The existing omnidirectional antenna will emit a lot of heat in daily use, and most of the existing antennas are closed-shell type with slow heat dissipation efficiency. Therefore, as the temperature increases, the antenna power decreases, which will cause the signal strength to decrease. Therefore, a composite omnidirectional antenna with a heat dissipation space to ensure heat dissipation is required. Utility Model Content

[0004] The main purpose of the utility model is to provide a UHF dual-band broadband composite omnidirectional antenna, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A UHF dual-band broadband composite omnidirectional antenna comprises a substrate, wherein the upper surface and the lower surface of the substrate are both fixedly connected with bosses, the outer surface of the boss is provided with a rotating hole, the inner wall of the rotating hole is movably connected with a damping shaft, and one end of the damping shaft is fixedly connected with a sleeve.

[0007] In order to achieve the effect of installing the movable seat, as a UHF dual-band broadband composite omnidirectional antenna of the utility model, the inner wall of the sleeve is provided with an internal thread, and the inner wall of the internal thread is threadedly connected with the movable seat.

[0008] In order to achieve the effect of fixing the radiation tube, as a UHF dual-band broadband composite omnidirectional antenna of the utility model, the inner wall of the movable base is fixedly connected with a mounting frame, and the inner wall of the mounting frame is fixedly connected with the radiation tube.

[0009] In order to achieve the effect of installing the shell, as a UHF dual-band broadband composite omnidirectional antenna of the utility model, the outer surface of the sleeve is provided with an external thread, and the outer surface of the external thread is threadedly connected with the shell.

[0010] In order to achieve the effect of conveniently connecting lines, as a UHF dual-band broadband composite omnidirectional antenna of the utility model, a protrusion is fixedly connected to the front side of the substrate, and a wire channel is opened on the front side of the protrusion.

[0011] In order to achieve the effect of installing the connecting column, as a UHF dual-band broadband composite omnidirectional antenna of the utility model, a through hole is opened on the upper surface of the substrate, the inner wall of the through hole is movably connected with the connecting column, and the top of the connecting column is fixedly connected with a stopper.

[0012] In order to achieve the effect of fixing the substrate, as a UHF dual-band broadband composite omnidirectional antenna of the utility model, the bottom end of the connecting column is fixedly connected with a bottom pin, and the side of the substrate is fixedly connected with a fixing pin.

[0013] In order to achieve the effect of guiding rainwater to drip downward when it rains, as a UHF dual-band broadband composite omnidirectional antenna of the utility model, a guide column is fixedly connected to the outer surface of the substrate.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The UHF dual-band broadband composite omnidirectional antenna, through the arrangement of the substrate, boss, rotating hole, damping shaft, sleeve, internal thread, movable seat, mounting frame, radiation tube, external thread and shell, can autonomously adjust the size of the space in the sleeve when the omnidirectional antenna is in use. The space is the heat dissipation space. The size of the heat dissipation space can be changed by rotating the shell on the sleeve and changing the position of the shell. Since the bottom of the sleeve and the substrate are not in contact, the heat dissipation space is not closed, and the bottom of the sleeve can facilitate air circulation. In order to improve the heat dissipation effect, the sleeve can be rotated to rotate the damping shaft in the rotating hole, so that the sleeve is tilted to facilitate air flow and heat outflow, thereby providing heat dissipation efficiency and avoiding the problem that the temperature rises and the antenna power decreases, which will lead to a decrease in signal strength.

[0016] 2. The UHF dual-band broadband composite omnidirectional antenna, through the setting of the bottom pin and the fixed pin, the connecting column can move in the through hole to change the position of the bottom pin. After the position is changed, a washer can be fixed on the connecting column between the substrate and the block to fix the adjusted position of the bottom pin, and the antenna can be fixed with bolts in conjunction with the fixed pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the structure of a UHF dual-band broadband composite omnidirectional antenna according to Embodiment 1 of the utility model;

[0018] Figure 2 This is a schematic diagram of the axonometric structure of a UHF dual-band broadband composite omnidirectional antenna as viewed from the rear in Example 1 of the utility model;

[0019] Figure 3 This is a schematic diagram of the isometric structure of a substrate in a UHF dual-band broadband composite omnidirectional antenna in Example 1 of the utility model;

[0020] Figure 4 This is a schematic diagram of the axonometric structure of a substrate in a UHF dual-band broadband composite omnidirectional antenna in Example 1 of the utility model, viewed from the rear;

[0021] Figure 5 This is a schematic diagram of the exploded structure of the outer shell of a UHF dual-band broadband composite omnidirectional antenna in Example 1 of the utility model;

[0022] Figure 6 This is a schematic diagram of the exploded structure of a moving base in a UHF dual-band broadband composite omnidirectional antenna according to Example 1 of the utility model;

[0023] Figure 7 This is a schematic cross-sectional structure diagram of a UHF dual-band broadband composite omnidirectional antenna in the front view of Example 1 of the utility model;

[0024] Figure 8 This is a schematic cross-sectional structure diagram of a right side view of a UHF dual-band broadband composite omnidirectional antenna according to Example 1 of the utility model.

[0025] In the figure: 1, substrate; 2, boss; 3, rotating hole; 4, damping shaft; 5, sleeve; 6, internal thread; 7, moving seat; 8, mounting frame; 9, radiation tube; 10, external thread; 11, shell; 12, bump; 13, wire channel; 14, through hole; 15, connecting column; 16, stopper; 17, bottom pin; 18, fixing pin; 19, guide column. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] like Figure 1-8As shown, a UHF dual-band broadband composite omnidirectional antenna includes a substrate 1, the upper surface and the lower surface of the substrate 1 are fixedly connected to a boss 2, the outer surface of the boss 2 is provided with a rotating hole 3, the inner wall of the rotating hole 3 is movably connected to a damping shaft 4, and one end of the damping shaft 4 is fixedly connected to a sleeve 5.

[0029] When in use, through the arrangement of the substrate 1, the boss 2, the rotating hole 3, the damping shaft 4, the sleeve 5, the internal thread 6, the moving seat 7, the mounting frame 8, the radiation tube 9, the external thread 10 and the shell 11, the sleeve 5 is installed in the rotating hole 3 of the upper and lower bosses 2 of the substrate 1 through the damping shaft 4, the moving seat 7 is installed on the internal thread 6 of the sleeve 5, the mounting frame 8 is fixed in the moving seat 7, and the radiation tube 9 is fixed in the mounting frame 8, and the shell 11 is installed on the external thread 10 of the sleeve 5. When the omnidirectional antenna is used, the space in the sleeve 5 can be adjusted autonomously. The size of the space is the heat dissipation space. The size of the heat dissipation space can be changed by rotating the outer shell 11 on the sleeve 5 and changing the position of the outer shell 11. Since the bottom of the sleeve 5 is not in contact with the substrate 1, the heat dissipation space is not closed, and the bottom of the sleeve 5 can facilitate air circulation. In order to improve the heat dissipation effect, the sleeve 5 can be rotated to rotate the damping shaft 4 in the rotating hole 3, so that the sleeve 5 is in an inclined state to facilitate air flow and heat outflow, thereby providing heat dissipation efficiency and avoiding the problem that the temperature rises and the antenna power decreases, which will lead to a decrease in signal strength.

[0030] In this embodiment, the inner wall of the sleeve 5 is provided with an internal thread 6 , and the inner wall of the internal thread 6 is threadedly connected with a moving seat 7 .

[0031] During specific use, the movable seat 7 is installed through the setting of the internal thread 6.

[0032] In this embodiment, a mounting frame 8 is fixedly connected to the inner wall of the movable seat 7 , and a radiation tube 9 is fixedly connected to the inner wall of the mounting frame 8 .

[0033] During specific use, the radiation tube 9 is fixed by setting the mounting frame 8 .

[0034] In this embodiment, an outer surface of the sleeve 5 is provided with an external thread 10 , and the outer surface of the external thread 10 is threadedly connected with a housing 11 .

[0035] During specific use, the outer shell 11 is installed through the setting of the external thread 10.

[0036] In this embodiment, a bump 12 is fixedly connected to the front side of the substrate 1 , and a wire channel 13 is provided on the front side of the bump 12 .

[0037] During specific use, the line channel 13 is provided to facilitate line connection.

[0038] In this embodiment, a through hole 14 is formed on the upper surface of the substrate 1 , a connecting column 15 is movably connected to the inner wall of the through hole 14 , and a stopper 16 is fixedly connected to the top of the connecting column 15 .

[0039] During specific use, the connecting column 15 is installed through the setting of the through hole 14.

[0040] In this embodiment, a bottom pin 17 is fixedly connected to the bottom end of the connection column 15 , and a fixing pin 18 is fixedly connected to the side surface of the substrate 1 .

[0041] During specific use, the substrate 1 is fixed by setting the fixing pins 18 .

[0042] In this embodiment, a guide column 19 is fixedly connected to the outer surface of the substrate 1 .

[0043] During specific use, the guide column 19 is provided to guide rainwater to drip downwards when it rains.

[0044] Working principle: When the omnidirectional antenna is in use, the size of the space inside the sleeve 5 can be adjusted autonomously. The space is the heat dissipation space. The size of the heat dissipation space can be changed by rotating the outer shell 11 on the sleeve 5 and changing the position of the outer shell 11. Since the bottom of the sleeve 5 is not in contact with the substrate 1, the heat dissipation space is not closed, and the bottom of the sleeve 5 can facilitate air circulation. In order to improve the heat dissipation effect, the sleeve 5 can be rotated to rotate the damping shaft 4 in the rotating hole 3, so that the sleeve 5 is in an inclined state to facilitate air flow and heat outflow.

[0045] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A UHF dual-band broadband composite omnidirectional antenna, comprising a substrate (1), characterized in that: The upper and lower surfaces of the base plate (1) are both fixedly connected to a boss (2), the outer surface of the boss (2) is provided with a rotating hole (3), the inner wall of the rotating hole (3) is movably connected to a damping shaft (4), and one end of the damping shaft (4) is fixedly connected to a sleeve (5).

2. The UHF dual-band broadband composite omnidirectional antenna according to claim 1, characterized in that: The inner wall of the sleeve (5) is provided with an internal thread (6), and the inner wall of the internal thread (6) is threadedly connected with a movable seat (7).

3. The UHF dual-band broadband composite omnidirectional antenna according to claim 2, characterized in that: The inner wall of the movable seat (7) is fixedly connected to a mounting frame (8), and the inner wall of the mounting frame (8) is fixedly connected to a radiation tube (9).

4. The UHF dual-band broadband composite omnidirectional antenna according to claim 1, characterized in that: The outer surface of the sleeve (5) is provided with an external thread (10), and the outer surface of the external thread (10) is threadedly connected to a housing (11).

5. The UHF dual-band broadband composite omnidirectional antenna according to claim 1, characterized in that: A convex block (12) is fixedly connected to the front side of the substrate (1), and a wire channel (13) is provided on the front side of the convex block (12).

6. The UHF dual-band broadband composite omnidirectional antenna according to claim 1, characterized in that: A through hole (14) is provided on the upper surface of the base plate (1), a connecting column (15) is movably connected to the inner wall of the through hole (14), and a stopper (16) is fixedly connected to the top end of the connecting column (15).

7. The UHF dual-band broadband composite omnidirectional antenna according to claim 6, characterized in that: The bottom end of the connecting column (15) is fixedly connected to a bottom pin (17), and the side surface of the base plate (1) is fixedly connected to a fixing pin (18).

8. The UHF dual-band broadband composite omnidirectional antenna according to claim 1, characterized in that: A flow guide column (19) is fixedly connected to the outer surface of the base plate (1).

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