Receivable ultrashort wave logarithmic antenna

Abstract

The utility model relates to the technical field of logarithmic antennas, and discloses a storable ultrashort wave logarithmic antenna, which comprises an antenna main rod and a plurality of antenna oscillators, the plurality of antenna oscillators are uniformly distributed on the two sides of the antenna main rod, folding mechanisms are arranged on the two sides of the antenna main rod, and the folding mechanisms are arranged on the two sides of the antenna main rod. The left end of the antenna main rod is provided with a main rod dismounting mechanism. According to the utility model, through cooperation of the limiting groove, the positioning block, the first threaded channel, the second threaded channel, the positioning bolt, the fixing shaft, the first positioning port and the second positioning port, one end of the antenna oscillator can be moved conveniently, the position of one end of the antenna oscillator can be adjusted, and a plurality of horizontally unfolded antenna oscillators can be erected on two sides of the top of the antenna main rod. The logarithmic antenna is convenient to fold and store, the occupied area of the logarithmic antenna during transportation or storage can be reduced, and the logarithmic antenna is convenient to transport or store.

Description

Technical Field

[0001] The utility model relates to the technical field of logarithmic antennas, and more specifically to a retractable ultra-short wave logarithmic antenna. Background Art

[0002] In the field of modern communication, an antenna is one of the indispensable components. The function of an antenna is to transfer a transmission signal from one point to another point to enable wireless communication. One of the widely used antenna types is a logarithmic antenna. A logarithmic antenna is a specially designed antenna with a wide range of application fields. The principle of a logarithmic antenna is based on the concept of a log-periodic antenna. A log-periodic antenna is an infinite-periodic structure, and its characteristic is that it has the same response in multiple directions. This characteristic makes the performance of the logarithmic antenna balanced and stable in multiple directions.

[0003] Currently, the existing logarithmic antennas usually have multiple antenna elements, and the multiple antenna elements are usually evenly distributed on both sides of the antenna main rod in an unfolded form, so that the logarithmic antenna occupies a large area during transportation or storage, and it is inconvenient during transportation and storage, which needs to be improved. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a retractable ultra-short wave logarithmic antenna to solve the problems existing in the above background art.

[0005] The utility model provides the following technical solution: A retractable ultra-short wave logarithmic antenna, including an antenna main rod and antenna elements. The number of the antenna elements is multiple, and the multiple antenna elements are evenly distributed on both sides of the antenna main rod. Folding mechanisms are arranged on both sides of the antenna main rod, and a main rod disassembly and assembly mechanism is arranged at the left end of the antenna main rod;

[0006] The folding mechanism includes limiting grooves. The number of the limiting grooves is multiple, and the multiple limiting grooves are opened above both sides of the antenna main rod. Positioning blocks are arranged inside the multiple limiting grooves. One end of the antenna element is fixedly connected to one side of the positioning block. A fixing shaft is rotatably sleeved inside the positioning block, and both ends of the fixing shaft are fixedly connected to both sides of the inner wall of the limiting groove;

[0007] The main rod disassembly and assembly mechanism includes a mounting seat. An installation opening is formed in the middle of the right side of the mounting seat. The left end of the antenna main rod is movably inserted into the interior of the installation opening. Collection grooves are symmetrically opened on the upper and lower sides inside the mounting seat. The number of the collection grooves is two, and the two collection grooves are located on the upper and lower sides of the installation opening.

[0008] Preferably, a first threaded channel is provided in the middle of the top of the positioning block, a positioning bolt is threadedly connected inside the first threaded channel, a first positioning port is provided in the middle of the top of the fixed shaft, and the bottom end of the positioning bolt is threadedly connected inside the first positioning port.

[0009] Preferably, a second threaded channel is provided in the middle of the bottom of the positioning block, and a second positioning port is provided in the middle of one side of the outer wall of the fixed shaft.

[0010] Preferably, insertion blocks are movably sleeved inside both of the two collection grooves, screw rods are threadedly connected to both the top and the bottom of the mounting seat, and one end of each screw rod extends into the collection groove and is rotatably connected to the insertion block.

[0011] Preferably, guide rods are movably sleeved on both the top and the bottom of the mounting seat, and one end of each guide rod extends into the collection groove and is fixedly connected to the insertion block.

[0012] Preferably, positioning sockets adapted to the outer walls of the insertion blocks are provided at the left ends of both the top and the bottom of the antenna main rod, and threaded mounting holes are symmetrically provided on both sides of the mounting seat.

[0013] The technical effects and advantages of the present utility model:

[0014] 1. By using the cooperation of the limit groove, positioning block, first threaded channel, second threaded channel, positioning bolt, fixed shaft, first positioning port and second positioning port, the present utility model facilitates moving one end of the antenna element to adjust the position of one end of the antenna element, so that multiple horizontally deployed antenna elements stand on both sides of the top of the antenna main rod, facilitating folding of the multiple antenna elements, convenient for storage, reducing the area occupied during transportation or storage of the logarithmic antenna, and facilitating transportation or storage.

[0015] 2. By using the cooperation of the mounting seat, mounting port and threaded mounting holes, the present utility model facilitates inserting the left end of the antenna main rod into the mounting port, and then through the cooperation of the screw rod, guide rod and collection groove, facilitating adjusting the position of the insertion block, inserting the insertion block into the positioning socket, and further fixing the left end of the antenna main rod in the mounting port, facilitating installation of the antenna main rod. The left end of the antenna main rod can be taken out of the mounting port in the same way, facilitating disassembly of the antenna main rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model.

[0017] Figure 2 is an enlarged schematic diagram of the structure at A of the present utility model.

[0018] Figure 3Schematic cross-sectional view of the side structures of the antenna main rod, positioning block and fixed shaft of the present utility model.

[0019] Figure 4 Schematic cross-sectional view of the side structures of the antenna main rod and mounting base of the present utility model.

[0020] Figure 5 Schematic view of the right side structure of the mounting base of the present utility model.

[0021] Figure 6 Schematic cross-sectional view of the side structures of the antenna elements standing on both sides of the top of the antenna main rod of the present utility model.

[0022] Reference numerals: 1, antenna main rod; 2, antenna element; 3, folding mechanism; 4, main rod disassembly and assembly mechanism; 31, limit groove; 32, positioning block; 321, first threaded channel; 322, second threaded channel; 323, positioning bolt; 33, fixed shaft; 331, first positioning port; 332, second positioning port; 41, mounting base; 42, mounting opening; 43, screw; 44, insertion block; 45, guide rod; 46, collection groove; 47, positioning socket; 48, threaded mounting hole. Detailed implementation manners

[0023] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. In addition, the forms of the various structures described in the following implementation manners are merely examples, and a retractable ultra-short wave log periodic antenna related to the present utility model is not limited to the various structures described in the following implementation manners. All other implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0024] Embodiment 1:

[0025] As Figures 1-6As shown in the figure, a retractable ultra-short wave log periodic antenna includes an antenna main rod 1 and antenna elements 2. The number of antenna elements 2 is multiple, and the multiple antenna elements 2 are evenly distributed on both sides of the antenna main rod 1. Folding mechanisms 3 are provided on both sides of the antenna main rod 1. The folding mechanism 3 includes limiting grooves 31. The number of limiting grooves 31 is multiple, and the multiple limiting grooves 31 are opened above both sides of the antenna main rod 1. Positioning blocks 32 are provided inside the multiple limiting grooves 31. One end of the antenna element 2 is fixedly connected to one side of the positioning block 32. A fixed shaft 33 is rotatably sleeved inside the positioning block 32. Both ends of the fixed shaft 33 are fixedly connected to both sides of the inner wall of the limiting groove 31. A first threaded channel 321 is opened in the middle of the top of the positioning block 32. A positioning bolt 323 is threadedly connected inside the first threaded channel 321. A first positioning opening 331 is opened in the middle of the top of the fixed shaft 33. The bottom end of the positioning bolt 323 is threadedly connected inside the first positioning opening 331. A second threaded channel 322 is opened in the middle of the bottom of the positioning block 32. A second positioning opening 332 is opened in the middle of one side of the outer wall of the fixed shaft 33.

[0026] In this embodiment, one end of the positioning bolt 323 is connected inside the first positioning opening 331 through the first threaded channel 321, which is convenient for fixedly installing the positioning block 32 on the fixed shaft 33. When the log periodic antenna needs to be folded and stored, first remove the positioning bolt 323, and then rotate the antenna element 2 90 degrees upward, so that one end of the antenna element 2 drives the positioning block 32 to rotate on the outer wall of the fixed shaft 33. At this time, connect one end of the positioning bolt 323 inside the second positioning opening 332 through the second threaded channel 322, so as to fix the positioning block 32 and the antenna element 2, and make the antenna element 2 stand vertically on the side of the top of the antenna main rod 1. By adopting this method, multiple horizontally deployed antenna elements 2 can be erected on both sides of the antenna main rod 1, which is convenient for folding the multiple antenna elements 2 and convenient for storage, thereby reducing the area occupied by the log periodic antenna during transportation or storage and facilitating transportation or storage.

[0027] Embodiment Two:

[0028] As Figures 1-6As shown in the figure, a main rod disassembly and assembly mechanism 4 is provided at the left end of the antenna main rod 1. The main rod disassembly and assembly mechanism 4 includes a mounting base 41. A mounting opening 42 is formed in the middle of the right side of the mounting base 41. The left end of the antenna main rod 1 is movably inserted into the interior of the mounting opening 42. Collection grooves 46 are symmetrically formed in the upper and lower sides inside the mounting base 41. The number of the collection grooves 46 is two. The two collection grooves 46 are located on the upper and lower sides of the mounting opening 42. Plug blocks 44 are movably sleeved inside the two collection grooves 46. Screws 43 are threadedly connected to both the top and bottom of the mounting base 41. One end of the screw 43 extends into the interior of the collection groove 46 and is rotatably connected to the plug block 44. Guide rods 45 are movably sleeved on both the top and bottom of the mounting base 41. One end of the guide rod 45 extends into the interior of the collection groove 46 and is fixedly connected to the plug block 44. Positioning sockets 47 adapted to the outer wall of the plug block 44 are formed at the left ends of the top and bottom of the antenna main rod 1. Threaded mounting holes 48 are symmetrically formed on both sides of the mounting base 41.

[0029] In this embodiment, through the setting of the threaded mounting holes 48, it is convenient to use bolts to install the mounting base 41 at a specified position through the threaded mounting holes 48. By inserting the left end of the antenna main rod 1 into the mounting opening 42 on the right side of the mounting base 41, and then rotating the screws 43 at the top and bottom of the mounting base 41 in a spiral manner, one end of the screw 43 drives the plug block 44 to be inserted into the positioning socket 47, which is convenient to fixedly install the left end of the antenna main rod 1 inside the mounting base 41. When disassembling the antenna main rod 1, by rotating the screw 43 in the reverse direction and driving the plug block 44 to move from the positioning socket 47 to the collection groove 46 in the same way, and then moving the left end of the antenna main rod 1 out of the mounting opening 42, it is convenient to disassemble the antenna main rod 1.

[0030] To sum up, as Figures 1-6As shown in the figure, for this retractable ultra-short wave log periodic antenna, when it is necessary to store or transport the antenna during use, first take out one end of the positioning bolt 323 from the inside of the first positioning port 331 and the first threaded channel 321. At this time, move one end of the antenna element 2 upward. At the same time, the other end of the antenna element 2 drives the positioning block 32 to rotate 90 degrees on the outer wall of the fixed shaft 33, and makes the second threaded channel 322 and the second positioning port 332 at the same horizontal level. At this time, then connect one end of the positioning bolt 323 to the second positioning port 332 through the second threaded channel 322, so as to fix the positioning block 32 and the antenna element 2, and make the antenna element 2 vertically stand on the side of the top of the antenna main rod 1. Then, in the same way, the other antenna elements 2 are vertically stood on the side of the top of the antenna main rod 1, which can reduce the area occupied during the transportation or storage of the log periodic antenna. When installing the antenna main rod 1, first insert the left end of the antenna main rod 1 into the installation port 42 on the right side of the mounting seat 41, and then rotate the screws 43 at the top and bottom of the mounting seat 41 in a spiral manner, so that one end of the screw 43 rotates on the insertion block 44 and drives the insertion block 44 to move. The insertion block 44 simultaneously drives the guide rod 45 to move vertically, so that the insertion block 44 is inserted into the positioning socket 47, thereby facilitating the fixed installation of the left end of the antenna main rod 1 inside the mounting seat 41.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A retractable ultra-short wave log periodic antenna, comprising an antenna main rod (1) and an antenna dipole (2), characterized in that, The number of the antenna elements (2) is multiple, and the multiple antenna elements (2) are evenly distributed on both sides of the antenna main rod (1). Folding mechanisms (3) are provided on both sides of the antenna main rod (1), and a main rod disassembly and assembly mechanism (4) is provided at the left end of the antenna main rod (1). The folding mechanism (3) includes limiting grooves (31). The number of the limiting grooves (31) is multiple, and the multiple limiting grooves (31) are opened above both sides of the antenna main rod (1). Positioning blocks (32) are provided inside the multiple limiting grooves (31). One end of the antenna element (2) is fixedly connected to one side of the positioning block (32). A fixed shaft (33) is rotatably sleeved inside the positioning block (32), and both ends of the fixed shaft (33) are fixedly connected to both sides of the inner wall of the limiting groove (31). The main rod disassembly and assembly mechanism (4) includes a mounting seat (41). A mounting opening (42) is opened in the middle of the right side of the mounting seat (41). The left end of the antenna main rod (1) is movably inserted into the mounting opening (42). Collection grooves (46) are symmetrically opened on the upper and lower sides inside the mounting seat (41). The number of the collection grooves (46) is two, and the two collection grooves (46) are located on the upper and lower sides of the mounting opening (42).

2. The retractable ultra-short wave log periodic antenna according to claim 1, characterized in that: A first threaded channel (321) is opened in the middle of the top of the positioning block (32). A positioning bolt (323) is threadedly connected inside the first threaded channel (321). A first positioning opening (331) is opened in the middle of the top of the fixed shaft (33). The bottom end of the positioning bolt (323) is threadedly connected inside the first positioning opening (331).

3. The retractable ultra-short wave log periodic antenna according to claim 1, characterized in that: A second threaded channel (322) is opened in the middle of the bottom of the positioning block (32). A second positioning opening (332) is opened in the middle of one side of the outer wall of the fixed shaft (33).

4. A retractable ultra-short wave log periodic antenna according to claim 1, characterized in that: Plug blocks (44) are rotatably sleeved inside the two collection grooves (46). Screws (43) are threadedly connected to both the top and bottom of the mounting seat (41). One end of the screw (43) extends into the collection groove (46) and is rotatably connected to the plug block (44).

5. A retractable ultra-short wave log periodic antenna according to claim 1, characterized in that: Guide rods (45) are rotatably sleeved on both the top and bottom of the mounting seat (41). One end of the guide rod (45) extends into the collection groove (46) and is fixedly connected to the plug block (44).

6. The retractable ultra-short wave log periodic antenna according to claim 1, wherein: Positioning sockets (47) adapted to the outer wall of the plug block (44) are opened at the left ends of both the top and bottom of the antenna main rod (1). Threaded mounting holes (48) are symmetrically opened on both sides of the mounting seat (41).

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