Telescopic antenna

Abstract

The utility model discloses a telescopic antenna, including main body antenna still include many around the periphery of main body antenna week's vice antenna, vice antenna and main body antenna between the hinge, to realize vice antenna collapsible, main body antenna is hollow, and main body antenna is connected with the communication cable on the bottom of main body antenna through antenna connecting wire, and at least one first resonance coil is established on antenna connecting wire, and second resonance coil is established on vice antenna, and vice antenna is connected with communication cable through second resonance coil, and the bottom of main body antenna is equipped with base, and angle adjusting assembly is established on base, and main body antenna is fixed on angle adjusting assembly through base, and installation support is established on angle adjusting assembly. Compared with prior art, can reduce the volume of main body antenna, and also easy to collect, through the base of two direction angle adjustment realizes the installation of main body antenna, has realized the adjustment of main body antenna according to the use need.

Description

Technical Field

[0001] This utility model relates to a communication device, and more particularly to an angle-adjustable telescopic antenna. Background Technology

[0002] Existing vertical antennas typically cover no more than three frequency bands. This is because the total length of an antenna is determined by its wavelength. While harmonic coils can shorten the antenna length if there are too many bands, antennas with more than three bands are generally mounted in a figure-seven or inverted L shape. While these methods improve the antenna's vertical height, they create a top-heavy appearance. Furthermore, the horizontal section of the antenna is very difficult to install and secure. Therefore, communication antennas generally do not cover more than three frequency bands.

[0003] In antenna installation, most antennas are installed vertically. However, if the installation environment is limited or obstructed by buildings or mountains, the antenna needs to be installed at an angle. Adjusting the angle is extremely difficult due to environmental factors, often requiring screws or fasteners to securely install the antenna. Mobile communication stations face even greater difficulties in antenna installation. Besides the fact that antennas can only be installed vertically, each installation or removal requires a significant amount of time and effort. Repeated disassembly and reassembly inevitably damage the antenna. Therefore, the market is eager for an antenna that is easy to install, covers multiple frequency bands, allows for easy angle adjustments, and is easy to store. Utility Model Content

[0004] The purpose of this invention is to provide a telescopic antenna to address the shortcomings of existing technologies.

[0005] To solve the above problems, the present invention adopts the following technical solution: a telescopic antenna, including a main antenna and multiple secondary antennas surrounding the outer circumference of the main antenna. The secondary antennas are hinged to the main antenna to achieve foldability. The main antenna is hollow and is connected to a communication cable at the bottom of the main antenna via an antenna connecting line. At least one first resonant coil is provided on the antenna connecting line, and a second resonant coil is provided on the secondary antenna. The secondary antenna is connected to the communication cable via the second resonant coil. A base is provided at the bottom of the main antenna, and an angle adjustment component is provided on the base. The main antenna is fixed to the angle adjustment component via the base, and a mounting bracket is provided on the angle adjustment component.

[0006] Furthermore, the antenna connection line includes a first antenna connection line and a second antenna connection line, and at least one first resonant coil is provided on the first antenna connection line and the second antenna connection line respectively.

[0007] Furthermore, the first antenna connection line is located inside the cavity of the main antenna, and the second antenna connection line is located on the outer wall of the main antenna.

[0008] Furthermore, the base is a mounting tube, and the base is connected to the main antenna via a flange.

[0009] Furthermore, a secondary antenna connecting ring is provided between the main antenna and the base. The secondary antenna connecting ring includes a ring end face and an outer peripheral face. The ring end face of the secondary antenna connecting ring is provided with ring through holes distributed along the ring end face. The base and the main antenna are fixed between the main antenna and the base by screws passing through the holes on their respective flanges and the ring through holes. The outer peripheral face of the secondary antenna connecting ring is provided with the same number of hinge seats as the secondary antenna, and the hinge seats are hinged to the secondary antenna.

[0010] Furthermore, a reinforcing mechanism is provided between the sub-antenna and the main antenna. The reinforcing mechanism includes a first sliding sleeve fitted on the main antenna and a second sliding sleeve fitted on the sub-antenna. A diagonal rod is provided between the first sliding sleeve and the second sliding sleeve. The two ends of the diagonal rod are respectively hinged to the first sliding sleeve and the second sliding sleeve, so that when the first sliding sleeve is pushed to move on the main antenna, the second sliding sleeve is driven to move in conjunction, thereby realizing the unfolding or folding of the sub-antenna.

[0011] Furthermore, the upper end of the main antenna is provided with a take-up reel, on which a wire is wound, and the wire is connected to the first sliding sleeve.

[0012] Furthermore, there are two take-up reels, symmetrically arranged on the outer periphery of the main antenna, and connected by a rotating shaft, on which a hand crank is provided.

[0013] Furthermore, a waterproof cap is provided at the upper end of the main antenna.

[0014] Furthermore, the angle adjustment assembly includes a first rotating part, a second rotating part, a third rotating part, and an L-shaped bracket. The L-shaped bracket includes a horizontal part and a vertical part. The first rotating part is disposed on the horizontal part, the second rotating part is disposed on the vertical part, and the third rotating part is connected to the base and the first rotating part. The third rotating part is connected to the first rotating part through a flange.

[0015] Compared with the prior art, this utility model connects the main antenna to the communication cable via an antenna connection line and the secondary antenna to the communication cable. At least one resonant coil is installed on the antenna connection line to enable the main antenna and the secondary antenna to cover the frequency range of very high frequency, ultra-high frequency, extremely high frequency, high, medium and low frequency bands. The foldable secondary antenna reduces the size of the main antenna and makes it easy to store. The main antenna is installed via a base that can be adjusted in two directions, allowing for adjustment of the main antenna according to usage needs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the main antenna of this utility model.

[0018] Figure 3 This is a schematic diagram of the folded sub-antenna of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the main antenna of this utility model used for ultra-high frequency.

[0020] Figure 5 This is a schematic diagram of the structure of the sub-antenna of this utility model. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] like Figure 1 and Figure 2 As shown, this utility model discloses a telescopic antenna, including a hollow main antenna 1, which is a fully cylindrical structure. A waterproof cap 17 is provided at the upper end of the main antenna 1 to seal the upper opening, thus waterproofing the interior of the main antenna 1. An antenna connecting wire 3 is arranged inside the cavity of the main antenna 1, and the antenna connecting wire 3 is connected to a communication cable 24 located at the bottom of the main antenna 1 for connection to a device. Multiple secondary antennas 2 are arranged around the lower outer periphery of the main antenna 1, and the secondary antennas 2 are connected to the main antenna. The antennas 1 are hinged together to make the sub-antenna 2 foldable. The sub-antenna 2 is connected to the communication cable 24. At least one first resonant coil 5 is provided on the antenna connection line 3. The sub-antenna 2 is provided with a second resonant coil 26 electrically connected to the communication cable 24 so that the main antenna and the sub-antenna cover different frequency bands. The bottom of the main antenna 1 is provided with a base 6. An angle adjustment component 7 is provided on the base 6. The main antenna 1 is connected to the angle adjustment component 7 through the base 6 so that the main antenna can be adjusted at multiple angles. The angle adjustment component 7 is provided with a mounting bracket 8 to fix the main antenna 1.

[0023] In this invention, the main antenna 1 is used in the very high frequency, ultra-high frequency, and extremely high frequency bands, while the secondary antenna is used in the high, medium, and low frequency bands.

[0024] like Figure 2 and 4As shown, the antenna connection line 3 includes a first antenna connection line 31 and a second antenna connection line 32. The first antenna connection line 31 is located inside the cavity of the main antenna 1 and is used in the VHF band. The second antenna 32 is located outside the main antenna 1 and is used in the UHF and EHF bands. Specifically, at least one first resonant coil 5 is provided on the first antenna connection line 31 and the second antenna connection line 32 respectively. At least one first resonant coil A 51 is provided on the first antenna connection line 31, and at least one first resonant coil B 52 is provided on the second antenna connection line 32. Both the first antenna connection line 31 and the second antenna connection line 32 are connected to the communication cable 24. Preferably, the first resonant coil B 52 is wound around the outer wall of the antenna body 1. Figure 4 As shown in the figure, this is to shorten the overall length of the antenna body 1.

[0025] like Figure 5 As shown, in this utility model, the second resonant coil 26 is also wound around the outer wall of the sub-antenna 2 to shorten the overall length of the sub-antenna, so that the overall length of the sub-antenna and the overall length of the antenna body 1 are both set within 1 meter.

[0026] This invention employs the principle of superposition resonance. First, a portion of the antenna frequencies are used as the main antenna, while the remaining frequencies are connected radially to the tail end of the main antenna. Since the length of the antenna is determined by the wavelength of the frequency, the higher the frequency, the shorter the wavelength, and consequently, the shorter the antenna length. If the antenna's application range covers the high-frequency, very high-frequency, and extremely high-frequency bands, even if the vertical design is changed to a figure-7 or inverted L shape, the antenna length will still be very long. For example, an antenna with a wavelength of 10 meters would have a minimum length of 2.5 meters and a maximum of 10 meters. Therefore, it cannot be installed anywhere. The antenna design is now divided into two sections: the vertical part is called the main antenna, covering the very high-frequency, ultra-high-frequency, and extremely high-frequency bands, while other frequency bands are received or transmitted through secondary antennas. The very high-frequency, ultra-high-frequency, and extremely high-frequency bands are shortened using resonant coils. The very high-frequency band is located inside the main antenna, while the extremely high-frequency and ultra-high-frequency resonant coils are wound around the outside of the main antenna, making it suitable for most locations. Because the antenna length is shorter than that required by existing antennas, its wind resistance is also enhanced.

[0027] like Figure 1 As shown, the base 6 is a mounting tube, and the base 6 is connected to the main antenna 1 through a flange.

[0028] like Figure 1As shown, the angle adjustment assembly 7 includes a first rotating part 71, a second rotating part 72, a third rotating part 73, and an L-shaped bracket 74. The first rotating part 71 enables the main antenna 1 to rotate horizontally in the circumferential direction (i.e., the first direction in the figure). The axis of the second rotating part 72 is perpendicular to the axis of the first rotating part 71 to achieve rotation in a different direction than the first rotating part 71 (i.e., the second direction in the figure). The third rotating part 73 enables rotation in a direction different from both the first rotating part 71 and the second rotating part 72 (i.e., the third direction in the figure). The L-shaped bracket 74 includes a horizontal part 18 and a vertical part 19. The first rotating part 71 is disposed on the horizontal part 18, the second rotating part 72 is disposed on the vertical part 19, the third rotating part 73 is connected to the base 6 and the first rotating part 71, the third rotating part 73 is connected to the first rotating part 71 through a flange 20, and the second rotating part 72 is connected to the mounting bracket 8.

[0029] In this utility model, the third rotating part 73 adopts a multi-angle hinge adjuster. One end of the multi-angle hinge adjuster is connected and fixed to the base 6, and the other end is connected and fixed to the first rotating part 71. A dustproof protective cover 25 is placed over the multi-angle hinge adjuster.

[0030] In this utility model, the first rotating part 71 and the second rotating part 72 can be turntables with angle limits. The third rotating part 73 has two connecting ends. One connecting end is inserted into the base 6 and fixed thereto. The other connecting end is connected to the first rotating part 71 through the flange 20. The flange 20 is provided with a screw through hole 21 and a fixing screw 22 is provided in the screw through hole 21. Of course, through holes are provided at the center of the horizontal part 18 and the first rotating part 71 so that one connecting end of the third rotating part 73 can pass through, thereby adjusting the overall height of the main antenna 1.

[0031] like Figure 1 As shown, the mounting bracket 8 can be fixed by means of metal cable ties or existing clips.

[0032] like Figure 2 As shown, a secondary antenna connecting ring 9 is provided between the main antenna 1 and the mounting tube 6. The secondary antenna connecting ring 9 includes a ring end face and an outer peripheral face. The ring end face of the secondary antenna connecting ring 9 is provided with ring through holes 10 distributed along the ring end face. The mounting tube 6 and the main antenna 1 are fixed between the main antenna 1 and the mounting tube 6 by screws passing through the holes on their respective flanges and the ring through holes 10. The outer peripheral face of the secondary antenna connecting ring 9 is provided with the same number of hinge seats 11 as the secondary antenna 2. The hinge seats 11 are hinged to the secondary antenna 2 to facilitate folding.

[0033] Furthermore, such as Figure 2As shown, a reinforcing mechanism is provided between the sub-antenna 2 and the main antenna 1. The reinforcing mechanism includes a first sliding sleeve 12 sleeved on the main antenna 1 and a second sliding sleeve 13 sleeved on the sub-antenna 2. A diagonal rod 14 is provided between the first sliding sleeve 12 and the second sliding sleeve 13. The two ends of the diagonal rod 14 are respectively hinged to the first sliding sleeve 12 and the second sliding sleeve 13, so that when the first sliding sleeve 12 is pushed to move on the main antenna 1, the second sliding sleeve 13 is driven to move in conjunction, thereby realizing the unfolding or folding of the sub-antenna 2. Thus, all sub-antennas can be unfolded or folded at the same time in one operation. With the above structure, the sub-antenna 2 can also be reinforced and supported, improving the rigidity of the sub-antenna and preventing it from being blown off.

[0034] like Figure 2 As shown, the above structure may have the problem of inconsistency in operation. Based on the above structure, a take-up wheel 15 can be set on the upper outer periphery of the main antenna 1, and a line 16 is wound on the take-up wheel 15. The line 16 is connected to the first sliding sleeve 12, so that the take-up and take-up of the line can be realized by rotating the take-up wheel 15, and the first sliding sleeve 12 can be moved on the main antenna 1 at the same time, so as to unfold or fold the sub-antenna 2.

[0035] Preferably, there are two take-up reels 15, which are symmetrically arranged on the outer periphery of the main antenna 1 and connected by a rotating shaft. A hand crank 23 is provided on the rotating shaft to facilitate operation.

[0036] This invention has the following advantages: By employing the superposition resonance principle, it not only fixes the overall height of the antenna but also allows for the unlimited expansion of the antenna's frequency band, completely covering the high-frequency, very-high-frequency, and extremely-high-frequency bands. Placing the remaining frequency branch antennas below the main antenna eliminates the top-heavy, bottom-light phenomenon. Furthermore, it enhances the antenna's ability to withstand strong winds without requiring additional support.

[0037] Secondly, it adopts an angle adjustment component, which allows the antenna to be installed in multiple ways, including horizontal and vertical installation, and the angle can also be changed left and right, without the need to use tools to install or remove the antenna.

[0038] Thirdly, the umbrella-shaped structure allows the secondary antenna to be folded upwards instead of horizontally, which shortens the horizontal volume of the telescopic antenna, eliminates the need to assemble and disassemble the branch antenna, and enables rapid deployment and installation, saving time.

Claims

1. A telescopic antenna, comprising a main antenna (1), characterized in that: It also includes multiple sub-antennas (2) that surround the outer periphery of the main antenna (1). The sub-antennas (2) are hinged to the main antenna (1) to make the sub-antennas (2) foldable. The main antenna (1) is hollow. The main antenna (1) is connected to the communication cable (24) on the bottom of the main antenna (1) through the antenna connection line (3). At least one first resonant coil (5) is provided on the antenna connection line (3). The sub-antenna (2) is provided with a second resonant coil (26). The sub-antenna (2) is connected to the communication cable (24) through the second resonant coil (26). The bottom of the main antenna (1) is provided with a base (6). An angle adjustment component (7) is provided on the base (6). The main antenna (1) is fixed on the angle adjustment component (7) through the base (6). The angle adjustment component (7) is provided with a mounting bracket (8).

2. The telescopic antenna according to claim 1, characterized in that: The antenna connection line (3) includes a first antenna connection line (31) and a second antenna connection line (32), and at least one first resonant coil (5) is provided on the first antenna connection line (31) and the second antenna connection line (32).

3. The telescopic antenna according to claim 2, characterized in that: The first antenna connection line (31) is located in the inner cavity of the main antenna (1), and the second antenna connection line (32) is located on the outer wall of the main antenna (1).

4. The telescopic antenna according to claim 1, characterized in that: The base (6) is a mounting tube, and the base (6) is connected to the main antenna (1) through a flange.

5. The telescopic antenna according to claim 4, characterized in that: A secondary antenna connecting ring (9) is provided between the main antenna (1) and the base (6). The secondary antenna connecting ring (9) includes a ring end face and an outer peripheral face. The ring end face of the secondary antenna connecting ring (9) is provided with ring through holes (10) distributed along the ring end face. The base (6) and the main antenna (1) are fixed between the main antenna (1) and the base (6) by screws passing through the holes on their respective flanges and the ring through holes (10). The outer peripheral face of the secondary antenna connecting ring (9) is provided with the same number of hinge seats (11) as the secondary antenna (2). The hinge seats (11) are hinged to the secondary antenna (2).

6. The telescopic antenna according to claim 5, characterized in that: A reinforcing mechanism is provided between the sub-antenna (2) and the main antenna (1). The reinforcing mechanism includes a first sliding sleeve (12) sleeved on the main antenna (1) and a second sliding sleeve (13) sleeved on the sub-antenna (2). A diagonal rod (14) is provided between the first sliding sleeve (12) and the second sliding sleeve (13). The two ends of the diagonal rod (14) are respectively hinged to the first sliding sleeve (12) and the second sliding sleeve (13) so that when the first sliding sleeve (12) is pushed to move on the main antenna (1), the second sliding sleeve (13) is driven to move in conjunction, thereby realizing the unfolding or folding of the sub-antenna (2).

7. The telescopic antenna according to claim 6, characterized in that: The upper end of the main antenna (1) is provided with a take-up reel (15), on which a wire (16) is wound, and the wire (16) is connected to the first sliding sleeve (12).

8. The telescopic antenna according to claim 7, characterized in that: Two take-up reels (15) are provided, symmetrically arranged on the outer periphery of the main antenna (1) and connected by a rotating shaft, on which a hand crank (23) is provided.

9. The telescopic antenna according to any one of claims 1-8, characterized in that: The upper end of the main antenna (1) is provided with a waterproof cap (17).

10. The telescopic antenna according to claim 9, characterized in that: The angle adjustment assembly (7) includes a first rotating part (71), a second rotating part (72), a third rotating part (73), and an L-shaped bracket (74). The L-shaped bracket (74) includes a horizontal part (18) and a vertical part (19). The first rotating part (71) is disposed on the horizontal part (18), the second rotating part (72) is disposed on the vertical part (19), and the third rotating part (73) is connected to the base (6) and the first rotating part (71). The third rotating part (73) is connected to the first rotating part (71) through a flange (20).

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