Short-wave active double-ring antenna

Abstract

The utility model belongs to the technical field of short-wave antenna communication, and particularly discloses a short-wave active double-ring antenna, which comprises a matching box, two groups of fixed support arms, two groups of rotatable support arms and two groups of soft oscillators, the two groups of rotatable support arms are rotationally connected to the other two sides of the matching box respectively; the two groups of rotatable support arms can be folded towards the two groups of fixed support arms respectively; and the two groups of soft vibrators are arranged at the end parts of the two groups of fixed support arms and the two groups of rotatable support arms in a penetrating manner. The antenna can be conveniently unfolded and stored, and is convenient to carry and use in a vehicle-mounted manner.

Description

Technical Field

[0001] This utility model relates to the field of shortwave antenna communication technology, specifically to a shortwave active dual-loop antenna. Background Technology

[0002] Dual-loop antennas offer numerous advantages, including simple structure, low cost, small size, and light weight, making them widely used in UHF band television and FM radio reception. Dual-loop antennas can effectively improve radiated power and bandwidth. However, traditional dual-loop antennas are typically fixed circular loops with a diameter of 1m, which poses significant inconvenience for portability and vehicle mounting. Furthermore, traditional dual-loop antennas are usually made of 20mm diameter aluminum alloy tubing, which suffers from low structural strength and poor dust, dirt, and shock resistance. Utility Model Content

[0003] This invention provides a shortwave active dual-loop antenna, which is designed to be easy to deploy and store, and convenient for portable and vehicle-mounted use.

[0004] This utility model is achieved through the following technical solution: a shortwave active dual-loop antenna, comprising a matching box, two sets of fixed arms, two sets of rotatable arms, and two sets of soft vibrators. The two sets of fixed arms are respectively fixed on opposite sides of the matching box, and the two sets of rotatable arms are respectively rotatably connected to the other two sides of the matching box. The two sets of rotatable arms can be folded toward the two sets of fixed arms. The two sets of soft vibrators are all inserted through the ends of the two sets of fixed arms and the two sets of rotatable arms.

[0005] Compared with existing technologies, this solution has the following advantages and beneficial effects:

[0006] The two sets of rotatable arms in this design can be folded towards the two sets of fixed arms, reducing the overall storage volume and making it more portable and suitable for vehicle use. The two sets of fixed arms and the two sets of rotatable arms are located around the matching box, with the soft vibrator inserted at the ends of the two sets of fixed arms and the two sets of rotatable arms. This changes the traditional circular ring antenna shape into a square ring shape, making it easier to quickly deploy and store.

[0007] Furthermore, the two sets of fixed arms and the two sets of rotatable arms are arranged in a cross shape.

[0008] This design simplifies the connection between the two sets of fixed support arms and the two sets of rotatable support arms, resulting in a neater and more aesthetically pleasing shape.

[0009] Furthermore, the two ends of the matching box that face each other are rotatably connected to a rotating plate via a rotating shaft, and the rotatable support arm is detachably connected to the rotating plate.

[0010] In this solution, the two ends of the matching box are connected to rotating plates, and the rotatable support arm is connected to the rotating plate, thereby indirectly realizing the rotational engagement between the rotatable support arm and the matching box. The rotatable support arm and the rotating plate are detachably connected, which makes it easy to install or replace the rotatable support arm according to the actual situation.

[0011] Furthermore, the matching box and the rotating plate are provided with limiting units for restricting the rotation of the rotating plate.

[0012] The limiting unit in this design can limit the rotation plate, preventing it from rotating and folding on its own after the rotatable arm has been unfolded. The limiting unit ensures the stability of the rotatable arm after it has been unfolded.

[0013] Furthermore, the limiting unit includes a wing bolt and a limiting rod. The shank of the wing bolt has a limiting hole in a direction perpendicular to its axis. Both the rotating plate and the matching box have openings facing each other on one side. The matching box has a vertical insertion hole on one side. One end of the wing bolt can pass laterally through the opening of the rotating plate and is located inside the opening of the matching box. The limiting rod is inserted into the insertion hole and can pass through the limiting hole of the wing bolt.

[0014] In this design, the wing bolt in the limiting unit passes laterally through the openings of the rotating plate and the matching box, so that the limiting hole of the wing bolt rod is located inside the opening of the matching box and aligned with the insertion hole. Then, by inserting the limiting rod into the insertion hole, the limiting rod passes through the limiting hole of the wing bolt rod. Finally, the wing nut on the wing bolt is tightened to lock the rotating plate, thereby ensuring the stability of the rotating plate and improving the stability of the rotatable support arm after it is deployed.

[0015] Furthermore, a fixing block is detachably connected to one end of the fixed support arm away from the matching box. The top and bottom of the fixing block are provided with wire-passing grooves, which are through groove structures.

[0016] In this design, the fixing block and the fixing arm are detachably connected, which facilitates separate processing and manufacturing before assembly and connection, making installation and use more flexible. Furthermore, since the upper and lower parts of the fixing block are provided with wire grooves, it can provide positional support for the later installation of soft vibrators.

[0017] Furthermore, a connecting plate is detachably connected to the end of the rotatable support arm away from the matching box, and the upper and lower parts of the connecting plate are respectively provided with wire through holes.

[0018] In this design, the connecting plate and the rotatable support arm are detachably connected, which facilitates separate processing and manufacturing before assembly. The wire holes on the upper and lower parts of the connecting plate provide support positions for the installation of the soft vibrator.

[0019] Furthermore, a rolling element is rotatably connected inside the thread hole.

[0020] In this design, the rolling element that rotates within the wire hole reduces friction between the soft vibrator and the rotatable arm when the antenna is retracted or extended.

[0021] Furthermore, the material of the soft vibrator is flexible stainless steel.

[0022] In this solution, the soft vibrator material is replaced with flexible stainless steel, which increases strength and waterproof performance.

[0023] Furthermore, one end of the matching box is connected to a mounting flange.

[0024] The mounting flange in this design ensures that other types of antennas can be installed on top of it without affecting the normal use of the support pole. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 This is a perspective view of an embodiment of a shortwave active dual-loop antenna according to the present invention;

[0027] Figure 2 This is a perspective view of one of the embodiments of the shortwave active dual-loop antenna of this utility model without the soft vibrator installed.

[0028] Figure 3 This is a perspective view of an embodiment of a shortwave active dual-loop antenna of this utility model without the soft vibrator installed.

[0029] Figure 4 for Figure 2 A magnified view of a section at point A in the middle;

[0030] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0031] Figure 6 This is a perspective view of the butterfly bolt in an embodiment of a shortwave active dual-loop antenna of this utility model.

[0032] Figure 7 for Figure 2 A magnified view of a section at point C;

[0033] Figure 8 for Figure 2 A magnified view of a section at point D;

[0034] Figure 9 This is a schematic diagram of the folded state of the rotatable arm in an embodiment of the shortwave active dual-loop antenna of this utility model.

[0035] The attached diagram shows the markings and corresponding component names:

[0036] Mounting flange 1, matching box 2, fixed support arm 3, fixed block 301, wire groove 302, rotatable support arm 4, connecting plate 401, wire hole 402, rolling element 403, soft vibrator 5, rotating plate 6, wing bolt 7, limit hole 701, opening 8, shaft hole 9, insertion hole 10. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0038] like Figures 1-3 As shown in the figure, as an embodiment of this application, a shortwave active dual-loop antenna is provided, including a matching box 2, two sets of fixed arms 3, two sets of rotatable arms 4, and two sets of soft vibrators 5. The fixed arms 3 and the rotatable arms 4 are hollow. The matching box 2 has a cuboid structure. The two sets of fixed arms 3 are respectively fixed on the two opposite sides of the matching box 2. The two sets of rotatable arms 4 are respectively rotatably connected to the other two sides of the matching box 2. In one embodiment, the two sets of fixed arms 3 and the two sets of rotatable arms 4 are arranged in a cross shape. The two sets of rotatable arms 4 can be folded towards the two sets of fixed arms 3. The two sets of soft vibrators 5 are both inserted through the ends of the two sets of fixed arms 3 and the two sets of rotatable arms 4. In this utility model, the two sets of soft vibrators 5 have a double-ring structure.

[0039] In one embodiment, the end of the fixed support arm 3 is fixed to the two opposite sides of the matching box 2 by multiple screws.

[0040] In one embodiment, combined Figure 4 and Figure 5 As shown, the two ends of the matching box 2 facing each other are rotatably connected to a rotating plate 6 via a pivot. The rotatable support arm 4 is detachably connected to the rotating plate 6. In this embodiment, the rotatable support arm 4 is detachably fixed to the rotating plate 6 via multiple bolts. A shaft hole 9 is provided on one side of the matching box 2, into which a pivot is inserted. The rotating plate 6 is rotatably connected to the matching box 2 via the pivot. In this embodiment, the rotating plate 6 can rotate and fold 90 degrees. The rotational engagement between the rotating plate 6 and the matching box 2 is similar to a hinge connection in the prior art. In this embodiment, the rotatable support arm 4 indirectly achieves a rotational engagement relationship with the matching box 2 through the rotating plate 6.

[0041] In one embodiment, the matching box 2 and the rotating plate 6 are provided with limiting units for restricting the rotation of the rotating plate 6, specifically: combined with Figure 4As shown, the limiting unit includes a wing bolt 7 and a limiting rod (not shown in the figure), as... Figure 6 As shown, the shank of the wing bolt 7 has a limiting hole 701 in the direction perpendicular to its axis. The rotating plate 6 and the matching box 2 each have an opening 8 facing each other on one side. The matching box 2 has a vertical insertion hole 10 on one side. The insertion hole 10 passes through the bottom of the opening 8 of the matching box 2. One end of the wing bolt 7 can pass through the opening 8 of the rotating plate 6 laterally and is located in the opening 8 of the matching box 2. The limiting rod is inserted into the insertion hole 10 and can pass through the limiting hole 701 of the wing bolt 7 and is located in the hole at the bottom of the opening of the matching box 2. This provides a better limiting effect.

[0042] Specifically: In actual design, when the end of the wing bolt 7 abuts against the inner wall of the opening 8 of the matching box 2, the limiting hole 701 on the wing bolt 7 rod is aligned with the insertion hole 10. In this way, when the limiting rod is inserted into the insertion hole 10, it can smoothly pass through the limiting hole 701 of the wing bolt 7 and be inserted into the insertion hole 10 at the bottom of the opening 8 of the matching box 2 to form a limiting effect. Finally, tighten the wing nut on the wing bolt 7 to lock the rotating plate 6. This will limit the rotation of the rotating plate 6, thereby ensuring that the rotatable support arm 4 is in a stable unfolded state.

[0043] In another embodiment, the limiting rod can be a threaded rod, which engages with the threaded insertion hole to further improve the stability of the limiting state.

[0044] like Figure 9 As shown, after use, loosen the wing bolt 7 and pull out the limit rod so that the wing bolt 7 can be taken out from the opening 8 of the rotating plate 6 and the matching box 2. Then, rotate the two sets of rotatable support arms 4 along the rotating shaft on the rotating plate 6 to fold them up to the position close to the fixed support arm 3 to achieve folding and storage, reduce volume, and make it easy to carry and store.

[0045] In one embodiment, combined Figure 1 and Figure 7 As shown, a fixing block 301 is detachably connected to the end of the fixed support arm 3 away from the matching box 2. In this embodiment, the fixing block 301 has a U-shaped structure, and both sides of the fixing block 301 are detachably fixed to the upper and lower parts of the fixed support arm 3 by screws or bolts. A wire-passing groove 302 is provided at both the top and bottom of the fixing block 301, and the wire-passing groove 302 is a through groove structure. Two sets of soft vibrators 5 can be respectively inserted into the wire-passing grooves 302 at the top and bottom of the fixing block 301.

[0046] In one embodiment, combined Figure 1 and Figure 8As shown, the end of the rotatable support arm 4 away from the matching box 2 is detachably connected to a connecting plate 401. In this embodiment, the rotatable support arm 4 and the connecting plate 401 are detachably fixed by screws or bolts. The upper and lower parts of the connecting plate 401 are respectively provided with wire holes 402. The wire holes 402 are horizontally arranged strip holes. In another embodiment, a rolling element 403 is rotatably connected in the wire hole 402 by a shaft. The rolling element 403 can be a bearing, roller, etc. The rolling element 403 is located in the middle of the wire hole 402. The setting of the rolling element 403 can reduce the friction between the soft vibrator 5 and the rotatable support arm 4 when the antenna is retracted or extended.

[0047] In one embodiment, the soft vibrator 5 is made of flexible stainless steel; specifically, the soft vibrator 5 is a flexible stainless steel wire rope, and the two sets of soft vibrators 5 are arranged according to... Figure 1 The route is arranged so that the wire passes through the wire groove 302 on the fixed support arm 3 and the wire hole 402 on the rotatable support arm 4 in sequence.

[0048] In one embodiment, such as Figure 2 and Figure 3 As shown, one end of the matching box 2 is connected to the mounting flange 1. In this embodiment, the top of the matching box 2 is fixed to the mounting flange 1 by screws or bolts. The mounting flange 1 can ensure that other types of antennas can be installed on its upper part without affecting the normal use of the support.

[0049] It should be noted that the above description of the disclosed embodiments enables those skilled in the art to implement or use 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 scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shortwave active dual-loop antenna, characterized in that, The device includes a matching box, two sets of fixed support arms, two sets of rotatable support arms, and two sets of flexible vibrators. The two sets of fixed support arms are respectively fixed to the two opposite sides of the matching box, and the two sets of rotatable support arms are respectively rotatably connected to the other two sides of the matching box. The two sets of rotatable support arms can be folded toward the two sets of fixed support arms. The two sets of flexible vibrators are inserted through the ends of the two sets of fixed support arms and the two sets of rotatable support arms.

2. The shortwave active dual-loop antenna according to claim 1, characterized in that, The two sets of fixed arms and the two sets of rotatable arms are arranged in a cross shape.

3. A shortwave active dual-loop antenna according to claim 2, characterized in that, The two ends of the matching box that face each other are rotatably connected to a rotating plate via a rotating shaft, and the rotatable support arm is detachably connected to the rotating plate.

4. A shortwave active dual-loop antenna according to claim 3, characterized in that, The matching box and the rotating plate are provided with limiting units for restricting the rotation of the rotating plate.

5. A shortwave active dual-loop antenna according to claim 4, characterized in that, The limiting unit includes a wing bolt and a limiting rod. The shank of the wing bolt has a limiting hole in a direction perpendicular to its axis. Both the rotating plate and the matching box have openings facing each other on one side. The matching box has a vertical insertion hole on one side. One end of the wing bolt can pass laterally through the opening of the rotating plate and is located in the opening of the matching box. The limiting rod is inserted into the insertion hole and can pass through the limiting hole of the wing bolt.

6. A shortwave active dual-loop antenna according to claim 1, characterized in that, The fixed support arm is detachably connected to a fixing block at the end away from the matching box. The top and bottom of the fixing block are provided with wire-passing grooves, which are through groove structures.

7. A shortwave active dual-loop antenna according to claim 1, characterized in that, The rotatable support arm is detachably connected to a connecting plate at the end away from the matching box, and the upper and lower parts of the connecting plate are respectively provided with wire holes.

8. A shortwave active dual-loop antenna according to claim 7, characterized in that, A rolling element is rotatably connected inside the thread hole.

9. A shortwave active dual-loop antenna according to claim 1, characterized in that, The soft vibrator is made of flexible stainless steel.

10. A shortwave active dual-loop antenna according to any one of claims 1-9, characterized in that, One end of the matching box is connected to a mounting flange.

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