Foldable yagi antenna

Abstract

The utility model relates to the technical field of yagi antennas, in particular to a foldable yagi antenna. The foldable yagi antenna comprises a main rod, L-shaped connector seats are uniformly arranged on the front side and the rear side of the main rod respectively, guiding rods are arranged in the L-shaped connector seats, the upper side and the lower side of each guiding rod are each provided with a set of rotating shafts, and the rotating shafts at the bottoms of the guiding rods penetrate through the bottoms of the L-shaped connector seats and are connected with gears; a handle is pulled left and right to drive a rack to move, all guide rods outside a main rod can be driven to be unfolded or folded at the same time through mutual cooperation of the rack and a gear, and therefore the portability and use convenience of the device can be effectively improved; the guide rod in an unfolded state can be fixed by screwing a bolt into the through hole and the first threaded hole, and the guide rod in a folded state can be fixed by screwing the bolt into the through hole and the second threaded hole, so that the use stability is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of Yagi antennas, in particular to a foldable Yagi antenna. Background Art

[0002] The Yagi antenna is an end-fire antenna composed of an active vibrator (generally a folded vibrator), a passive reflector and several passive directors arranged in parallel. It has good directivity and higher gain than a dipole antenna. However, since the directors on the Yagi antenna are arranged side by side, its size is large, which makes it inconvenient to store, transport and carry. In view of the above situation, technical innovation is carried out on the basis of the existing Yagi antenna. Utility Model Content

[0003] The utility model aims to provide a foldable Yagi antenna to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned Yagi, the utility model provides the following technical solution: a foldable Yagi antenna, comprising:

[0005] The main rod, the front and rear sides of the main rod are evenly provided with L-shaped joint seats, the inside of the L-shaped joint seat is provided with a guide rod, the upper and lower sides of the guide rod are provided with a group of rotating shafts, the rotating shaft at the bottom of the guide rod passes through the bottom of the L-shaped joint seat and is connected with a gear, wherein:

[0006] A rack is placed at the bottom of the main rod, and the gears are evenly distributed on the front and rear sides of the rack, and the rack is meshed with the gears.

[0007] Preferably, a guide groove is provided on the right side of the main rod, the guide groove runs through the bottom of the main rod, and a guide bar is provided on the top of the rack, and the guide bar is arranged in the guide groove.

[0008] Preferably, a through hole is formed through the bottom of the rack and the guide bar, a first threaded hole and a second threaded hole are formed at the top of the guide groove of the main rod, and the through hole is aligned with the first threaded hole and corresponds to the second threaded hole.

[0009] Preferably, a bolt is disposed in the through hole, and the bolt is threadedly connected to the first threaded hole and corresponds to the second threaded hole.

[0010] Preferably, a handle is provided on the left side of the rack, and a mounting seat is provided on the left side of the main rod.

[0011] Preferably, a mounting hole is provided at the top of the inner side wall of the L-shaped joint seat, and the rotating shaft at the top of the guide rod is arranged in the mounting hole.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model can drive the rack to move by pulling the handle left and right, and can drive all the guide rods outside the main rod to unfold or fold at the same time through the cooperation between the rack and the gear, so as to effectively improve the portability and convenience of use of the device;

[0014] The guide rod in the unfolded state can be fixed by screwing the bolt into the through hole and the first threaded hole, and the guide rod in the folded state can be fixed by screwing the bolt into the through hole and the second threaded hole, thereby ensuring the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a foldable Yagi antenna of the utility model;

[0016] Figure 2 This is a bottom view of a foldable Yagi antenna of the utility model;

[0017] Figure 3 It is a top cross-sectional view of a foldable Yagi antenna of the utility model;

[0018] Figure 4 The utility model is a partial front cross-sectional view of a foldable Yagi antenna.

[0019] In the figure: 1, main rod; 11, L-shaped joint seat; 12, guide rod; 13, mounting seat; 2, rack; 21, guide bar; 22, gear; 23, handle; 3, bolt; 4, first threaded hole; 41, second threaded hole. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 4 A foldable Yagi antenna comprises a main pole 1, L-shaped joint seats 11 are evenly fixedly arranged on the front and rear sides of the main pole 1, a guide rod 12 is rotatably arranged inside the L-shaped joint seat 11, a group of rotating shafts are fixedly arranged on the upper and lower sides of the guide rod 12, the rotating shaft at the bottom of the guide rod 12 passes through the bottom of the L-shaped joint seat 11 and is connected with a gear 22, a rack 2 is arranged at the bottom of the main pole 1, the gears 22 are evenly distributed on the front and rear sides of the rack 2, and the rack 2 is meshed with the gear 22.

[0022] A guide groove is provided on the right side of the main rod 1 and passes through the bottom of the main rod 1 . A guide bar 21 is fixedly provided on the top of the rack 2 and is slidably provided in the guide groove to assist the rack 2 to stably move left and right.

[0023] A through hole is formed through the bottom of the rack 2 and the guide bar 21, and a first threaded hole 4 and a second threaded hole 41 are formed at the top of the guide groove of the main rod 1. The through hole is aligned with the first threaded hole 4 and corresponds to the second threaded hole 41. A bolt 3 is provided in the through hole. The bolt 3 is screwed with the first threaded hole 4 and corresponds to the second threaded hole 41. When the bolt 3 is screwed into the through hole and the first threaded hole 4, the rack 2 can be fixed to the bottom of the main rod 1. Through the meshing of the rack 2 and the gear 22, the guide rod 12 can be fixed in the L-shaped joint seat 11, thereby completing the guide When the rod 12 is unfolded, a handle 23 is fixedly provided on the left side of the rack 2. Pushing the handle 23 to the right drives the rack 2 to move, and the rack 2 drives the gear 22 to rotate, thereby rotating the guide rod 12 to the left. When the guide rod 12 and the main rod 1 are completely folded, the through hole is aligned with the second threaded hole 41, and the bolt 3 is screwed into the through hole and the second threaded hole 41 to complete the fixing of the rack 2, thereby ensuring the stability of the guide rod 12 after folding. A mounting seat 13 is fixedly provided on the left side of the main rod 1, and the device can be fixed on the Yagi antenna bracket through the mounting seat 13.

[0024] A mounting hole is provided at the top of the inner side wall of the L-shaped joint seat 11, and a rotating shaft leading to the top of the rod 12 is rotatably arranged in the mounting hole.

[0025] Working principle: The device can be fixed on the Yagi antenna bracket through the mounting base 13. When the bolt 3 is screwed into the through hole and the first threaded hole 4, the rack 2 can be fixed to the bottom of the main rod 1. The meshing of the rack 2 and the gear 22 can fix the guide rod 12 in the L-shaped joint seat 11, thereby completing the unfolding of the guide rod 12. Pushing the handle 23 to the right drives the rack 2 to move, and the gear 22 is driven to rotate through the rack 2, thereby rotating the guide rod 12 to the left. When the guide rod 12 and the main rod 1 are completely folded, the through hole is aligned with the second threaded hole 41. Screwing the bolt 3 into the through hole and the second threaded hole 41 can complete the fixing of the rack 2, thereby ensuring the stability of the guide rod 12 after folding.

Claims

1. A foldable Yagi antenna, characterized in that: include: A main rod (1), wherein L-shaped joint seats (11) are evenly arranged on the front and rear sides of the main rod (1), a guide rod (12) is arranged inside the L-shaped joint seat (11), a group of rotating shafts are arranged on the upper and lower sides of the guide rod (12), and the rotating shaft at the bottom of the guide rod (12) passes through the bottom of the L-shaped joint seat (11) and is connected to a gear (22), wherein: A rack (2) is placed at the bottom of the main rod (1), and the gears (22) are evenly distributed on both sides of the front and rear of the rack (2), and the rack (2) is meshed with the gears (22).

2. A foldable Yagi antenna according to claim 1, characterized in that: A guide groove is provided on the right side of the main rod (1), the guide groove runs through the bottom of the main rod (1), and a guide bar (21) is provided on the top of the rack (2), the guide bar (21) is arranged in the guide groove.

3. A foldable Yagi antenna according to claim 2, characterized in that: A through hole is formed through the bottom of the rack (2) and the guide bar (21); a first threaded hole (4) and a second threaded hole (41) are formed at the top of the guide groove of the main rod (1); the through hole is aligned with the first threaded hole (4) and corresponds to the second threaded hole (41).

4. A foldable Yagi antenna according to claim 3, characterized in that: A bolt (3) is arranged in the through hole, and the bolt (3) is threadedly connected to the first threaded hole (4) and corresponds to the second threaded hole (41).

5. The foldable Yagi antenna according to claim 1, characterized in that: A handle (23) is provided on the left side of the rack (2), and a mounting seat (13) is provided on the left side of the main rod (1).

6. A foldable Yagi antenna according to claim 1, characterized in that: The top of the inner side wall of the L-shaped joint seat (11) is provided with a mounting hole, and the rotating shaft at the top of the guide rod (12) is arranged in the mounting hole.

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