Portable antenna device

Abstract

The invention belongs to the technical field of antenna equipment, and relates to portable antenna equipment. The device comprises a first shell, a telescopic mechanism and a connecting rod mechanism; the first shell is fixedly connected with a second shell, and a gap is formed between the first shell and the second shell; active oscillators are fixedly connected to two sides of the second shell; a fixing cylinder is fixedly connected into the second shell, one end of the telescopic mechanism is slidably connected with the fixing cylinder, and the telescopic mechanism comprises a plurality of telescopic rods which are slidably connected in sequence. The number of the connecting rod mechanisms is multiple, each connecting rod mechanism comprises two U-shaped frames, rotating rods and two connecting frames, and each U-shaped frame is rotationally connected with the two rotating rods. The adjacent connecting frames between the adjacent connecting rod mechanisms are fixedly connected, and one pair of fixedly-connected connecting frames is fixedly connected with the first shell. The equipment can be unfolded by moving the front connecting frame away from the second shell, the equipment can be folded and stored by moving the front connecting frame close to the second shell, operation is easy and convenient, and efficiency is high.

Description

Technical Field

[0001] The invention belongs to the technical field of antenna equipment and relates to a portable antenna equipment. Background Art

[0002] The Yagi antenna is an end-fire antenna composed of an active vibrator, a passive reflector and several passive directors arranged in parallel. It has the advantages of high gain, light structure and easy installation. However, due to its structure, it requires multiple directors to work with the active vibrator. Therefore, it is long and inconvenient to carry. In addition, the director and the active vibrator are easily bent during transportation, which affects the signal transmission effect.

[0003] A patent document with publication number CN116111365A discloses a portable high-gain antenna, including a main pole, a director connected to the main pole, and a reflector installed at the tail of the main pole. The main pole is fixed with a parallel active vibrator between the reflector and the director. A first limiting groove is provided at the connection between the top shell of the active vibrator and the signal part. The first limiting groove and the director and the reflector are engaged with each other. The first limiting groove of the top shell and the second limiting groove of the signal part form a cavity to store the director and the reflector. After storage, the vibrator shell is rotated so that the three are in the same direction with the main pole, making storage more convenient. The director, the reflector and the vibrator are not easily damaged during transportation. Compared with the traditional integrated antenna, the foldable main pole is smaller in size and more portable.

[0004] However, when storing the antenna, the director and reflector need to be pulled out, the top shell is opened, the director and reflector are installed in the slot, the top shell is buckled, and then the signal part is separated from the chimeric column on the top of the base through the installation slot at the bottom of the vibrator, the direction is reversed again, the direction of the vibrator is consistent with the rod body, and then the rod body is folded. This makes the storage box installation operation steps more and the efficiency is low.

[0005] In order to solve the above problems, the present invention proposes a portable antenna device. Summary of the invention

[0006] In order to solve the problems existing in the background technology, the present invention proposes a portable antenna device.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a portable antenna device comprises a first shell, a telescopic mechanism and a connecting rod mechanism; the first shell is fixedly connected to the second shell, and there is a gap between the first shell and the second shell; both sides of the second shell are connected to the source vibrator; a fixed cylinder is fixedly connected in the second shell, one end of the telescopic mechanism is slidably connected to the fixed cylinder, and the telescopic mechanism comprises a plurality of telescopic rods slidably connected in sequence; there are a plurality of connecting rod mechanisms, each of which comprises two U-shaped frames, a rotating rod and two connecting frames, each U-shaped frame is rotatably connected to two rotating rods, and the other ends of the two rotating rods on the same U-shaped frame are rotatably connected to the two connecting frames respectively; a reflector is slidably connected between the two U-shaped frames of one connecting rod mechanism, and a first director is slidably connected between the two U-shaped frames in the other connecting rod mechanisms, and the first director is connected to the telescopic mechanism; the adjacent connecting frames between adjacent connecting rod mechanisms are fixedly connected, and a pair of fixedly connected connecting frames are fixedly connected to the first shell; the connecting frame at the end is pulled to make the connecting rod mechanism gradually move away from the second shell, the two U-shaped frames in the same connecting rod mechanism gradually approach each other, and the distance between the U-shaped frames between adjacent connecting rod mechanisms gradually increases, so that the device is unfolded.

[0008] Furthermore, the connecting frame fixedly connected to the first shell forms an I-shaped frame; one of the connecting rod mechanisms is located on the first side of the I-shaped frame, and the other connecting rod mechanisms are all located on the second side of the I-shaped frame.

[0009] Furthermore, among the plurality of link mechanisms on the second side of the I-shaped frame, a second director is provided between adjacent link mechanisms, and the second director is fixedly connected to the corresponding connecting frame.

[0010] Furthermore, the reflector is slidably arranged between two U-shaped frames on the first side of the I-shaped frame; a sliding rod is arranged between the reflector and the fixed tube, a sliding groove is opened on the fixed tube, a sliding block is slidably arranged in the sliding groove, one end of the sliding rod is connected to the sliding block, and the other end of the sliding rod is connected to the second connecting block, and the second connecting block is fixedly connected to the reflector.

[0011] Furthermore, a transmission assembly is provided between adjacent connecting rod mechanisms, and the transmission assembly includes a first gear and a second gear meshing with the first gear, and the first gear and the second gear are respectively fixedly connected to one end of two adjacent rotating rods between the two connecting rod mechanisms away from the U-shaped frame.

[0012] Furthermore, in one of the connecting rod mechanisms, a first fixing block is fixedly connected to one of the U-shaped frames, and the first fixing block is threadedly connected to the second threaded rod; a second fixing block is fixedly connected to the other U-shaped frame, and the second fixing block is provided with a threaded hole that cooperates with the second threaded rod.

[0013] Furthermore, the first shell is slidably provided with a stop rod for limiting the connecting rod mechanism; a fixing rod is fixed to one end of the first shell away from the second shell, the fixing rod is rotatably connected to the first threaded rod, and the first threaded rod is threadedly connected to the stop rod.

[0014] Furthermore, a guide ring is fixedly connected to the inner side of the U-shaped frame, and a through hole communicating with the guide ring is opened on the U-shaped frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the device can be unfolded by moving the front connecting frame away from the second shell, and the device can be folded and stored by moving the front connecting frame toward the second shell, which is simple and convenient to operate with high efficiency.

[0016] Through the action of the first gear and the second gear, the four connecting rods move simultaneously, further improving the speed of unfolding or folding.

[0017] When in the storage state, the first director, the second director and the reflector are protected by the first shell and the second shell of the connecting rod mechanism, thereby preventing the first director, the second director and the reflector from being accidentally bent and deformed.

[0018] When unfolded, the first rotating rod and the second rotating rod support the first director and the second director, and the third rotating rod and the fourth rotating rod support the reflector, thereby ensuring the stability of the device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention in the storage state; Figure 2 is a cross-sectional view of the present invention in a stowed state; Figure 3 is a state diagram of the telescopic mechanism of the present invention in the stowed state; Figure 4 is a state diagram of the connecting rod mechanism in the stowed state of the present invention; Figure 5 is a schematic diagram of the cooperation between the first gear and the second gear in the present invention; Figure 6 The present invention Figure 5 A magnified view of part A; Figure 7 It is a schematic diagram of the structure of the present invention in an unfolded state; Figure 8 It is a schematic diagram of the local structure of the present invention in an unfolded state; Fig. 9 It is a partial cross-sectional view of the present invention in an unfolded state.

[0020] In the figure: 1, base; 2, first shell; 3, I-shaped frame; 4, second shell; 5, active vibrator; 6, fixing rod; 7, first threaded rod; 8, blocking rod; 9, fixing tube; 10, first telescopic rod; 11, second telescopic rod; 12, connecting rod; 13, first connecting block; 14, first collar; 15, first director; 16, second director; 17, second collar; 18, first rotating rod; 19, second rotating rod; 20, third rotating rod; 21, fourth rotating rod; 22, reflector; 23, first gear; 24, second gear; 25, U-shaped frame; 26, guide ring; 27, middle connecting frame; 28, front connecting frame; 29, rear connecting frame; 30, slide groove; 31, slider; 32, slide rod; 33, through hole; 34, first fixing block; 35, second fixing block; 36, second threaded rod; 37, second connecting block. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] like Figure 1-Figure 9 As shown, the technical solution adopted by the present invention is as follows: a portable antenna device includes a first shell 2, a telescopic mechanism and a connecting rod mechanism.

[0023] The first shell 2 is fixedly mounted on the base 1, an I-shaped frame 3 is fixedly mounted on the first shell 2, and a second shell 4 is fixedly mounted on the I-shaped frame 3. Both ends of the second shell 4 are mounted with source oscillators 5.

[0024] A limiting groove is provided on one side of the second shell 4 close to the first shell 2, and a fixing cylinder 9 is fixedly installed in the limiting groove. One end of the telescopic mechanism is slidably connected to the fixing cylinder 9. The telescopic mechanism includes a plurality of telescopic rods slidably connected in sequence. In the present embodiment, the telescopic mechanism includes a first telescopic rod 10 and a second telescopic rod 11, and the first telescopic rod 10 has three, and the second telescopic rod 11 has two, the first telescopic rod 10 and the second telescopic rod 11 are staggered and the first telescopic rod 10 and the adjacent second telescopic rod 11 are slidably connected, and the first telescopic rod 10 at one end is slidably connected to the fixing cylinder 9.

[0025] The telescopic end of each first telescopic rod 10 is fixedly connected to a connecting rod 12, each connecting rod 12 is fixedly connected to a first connecting block 13, each first connecting block 13 is fixedly connected to a first ring 14, the first ring 14 is fixedly connected to a first director 15, the first ring 14 is connected to the middle part of the first director 15, and the axis of the first director 15 is arranged perpendicular to the axis of the first telescopic rod 10.

[0026] Slide grooves 30 are provided on both sides of the fixing tube 9, and a slider 31 is slidably arranged in each slide groove 30, and each slider 31 is connected to a slide rod 32. A second connecting block 37 is connected between the two slide rods 32, and the second connecting block 37 is fixedly connected to the reflector 22.

[0027] There are multiple connecting rod mechanisms, each of which includes two U-shaped frames 25, a rotating rod and two connecting frames. Each U-shaped frame 25 is rotatably connected to the two rotating rods, and the other ends of the two rotating rods on the same U-shaped frame 25 are rotatably connected to the two connecting frames respectively. The adjacent connecting frames between adjacent connecting rod mechanisms are fixedly connected, and a pair of two fixedly connected connecting frames are fixedly connected to the first housing 2.

[0028] In this embodiment, two connecting frames fixedly connected to the first housing 2 form an I-shaped frame 3, and there are four connecting rod mechanisms, one of which is arranged on the first side of the I-shaped frame 3, and the other three are arranged in sequence on the second side of the I-shaped frame 3. A through hole 33 is opened on each U-shaped frame 25, and a guide ring 26 is fixed on each U-shaped frame 25, and the guide ring 26 is connected to the through hole 33.

[0029] For the convenience of description, the three link mechanisms located on the second side of the I-shaped frame 3 are named as the first link mechanism, the second link mechanism, and the third link mechanism from front to back, and the link mechanism on the first side of the I-shaped frame 3 is named as the fourth link mechanism. The reflector 22 is slidably connected between the two U-shaped frames 25 located on the first side of the I-shaped frame 3, i.e., in the fourth link mechanism, and the two ends of the reflector 22 extend into the corresponding guide rings 26 respectively. The three link mechanisms on the second side of the I-shaped frame 3 correspond one by one to the three first directors 15, and the first director 15 is slidably connected between the two U-shaped frames 25 in the corresponding link mechanism. The end of the first director 15 extends into the corresponding guide ring 26.

[0030] The two rotating rods rotatably connected to each U-shaped frame 25 in the fourth linkage mechanism are respectively named as the third rotating rod 20 and the fourth rotating rod 21. The fourth rotating rod 21 is located on the side away from the I-shaped frame 3. The connecting frame connected to the fourth rotating rod 21 is the rear connecting frame 29, and the two fourth rotating rods 21 are both rotatably connected to the rear connecting frame 29. The ends of the two third rotating rods 20 away from the U-shaped frame 25 are both rotatably connected to the first side of the I-shaped frame 3.

[0031] In the three link mechanisms corresponding to the first director 15, the two rotating rods rotatably connected to each U-shaped frame 25 are respectively named as the first rotating rod 18 and the second rotating rod 19, and the second rotating rod 19 is located on the side away from the I-shaped frame 3. The first rotating rod 18 in the link mechanism adjacent to the I-shaped frame 3 is rotatably connected to the second side of the I-shaped frame 3. The connecting frame between the two second rotating rods 19 in the link mechanism farthest from the I-shaped frame 3 is named as the front connecting frame 28, and the front connecting frame 28 is rotatably connected to the corresponding second rotating rod 19. And in the three link mechanisms corresponding to the first director 15, the two connecting frames fixedly connected between adjacent link mechanisms constitute the middle connecting frame 27.

[0032] The middle connecting frame 27 is fixedly connected to the second ring 17 , the second ring 17 is fixedly connected to the second director 16 , and the middle part of the second director 16 is connected to the second ring 17 .

[0033] The first director 15, the second director 16 and the reflector 22 are parallel to each other.

[0034] A transmission assembly is provided between adjacent connecting rod mechanisms. The transmission assembly includes a first gear 23 and a second gear 24, which are meshed with each other. The first gear 23 and the second gear 24 are respectively fixedly connected to one end of the adjacent rotating rod between the two connecting rod mechanisms away from the U-shaped frame 25. The first gear 23 and the second gear 24 are rotatably connected to the middle connecting frame 27 and the I-shaped frame 3. The first gear 23 on the middle connecting frame 27 is fixedly connected to the corresponding first rotating rod 18, and the second gear 24 on the middle connecting frame 27 is fixedly connected to the corresponding second rotating rod 19. The first gear 23 on the I-shaped frame 3 is fixedly connected to the corresponding first rotating rod 18, and the second gear 24 on the I-shaped frame 3 is fixedly connected to the third rotating rod 20.

[0035] The first housing 2 is slidably connected with a stopper rod 8, which has a limiting effect on the rear connecting frame 29. The lower end surface of the first housing 2 is fixedly connected with a fixing rod 6, which is rotatably connected with a first threaded rod 7. The stopper rod 8 is L-shaped, and the horizontal portion of the stopper rod 8 is threadedly connected with the first threaded rod 7. The vertical portion of the stopper rod 8 slides through the first housing 2 and extends to the top of the first housing 2.

[0036] In the first connecting rod mechanism, a second fixing block 35 is fixedly connected to one U-shaped frame 25, a first fixing block 34 is fixedly connected to the other U-shaped frame 25, a second threaded rod 36 is threadedly connected to the first fixing block 34, and a threaded hole cooperating with the second threaded rod 36 is opened on the second fixing block 35.

[0037] Working principle: like Figure 1As shown, the folding and storage state of the device is shown. The connecting rod mechanism is between the first shell 2 and the second shell 4, and the telescopic mechanism is in a shortened state. On the second side of the I-shaped frame 3, in the same connecting rod mechanism, the first rotating rod 18, the second rotating rod 19, the first guide 15 and the second guide 16 are parallel to each other, the two first rotating rods 18 are on the same straight line, the two second rotating rods 19 are on the same straight line, the first guide 15 and the second guide 16 are both between the corresponding first rotating rods 18 and the second rotating rods 19 and between the corresponding two U-shaped frames 25. The first guide 15 is in a protected state to prevent the first guide 15 from bending. On the first side of the I-shaped frame 3, the two third rotating rods 20 are on the same straight line, the two fourth rotating rods 21 are on the same straight line, the third rotating rod 20, the fourth rotating rod 21 and the reflector 22 are parallel to each other, and the reflector 22 is between the third rotating rod 20 and the fourth rotating rod 21. The third rotating rod 20 and the fourth rotating rod 21 have a protective effect on the reflector 22. In the folded state, it is convenient to carry, and during transportation, the first director 15, the second director 16 and the reflector 22 are all protected to prevent the first director 15, the second director 16 and the reflector 22 from being deformed.

[0038] When it is needed to be deployed for use, the first threaded rod 7 is screwed to move the blocking rod 8 downward, thereby releasing the limit on the rear connecting frame 29 .

[0039] Pull the front connecting frame 28 to move the front connecting frame 28 forward. In the first link mechanism, the front connecting frame 28 pulls one end of the second rotating rod 19 to move forward, the second rotating rod 19 rotates toward the outside of the U-shaped frame 25, the two U-shaped frames 25 approach each other and move forward at the same time, the U-shaped frame 25 drives one end of the first rotating rod 18 to move forward, the first rotating rod 18 rotates toward the outside of the U-shaped frame 25, the first rotating rod 18 and the second rotating rod 19 gradually change to a direction perpendicular to the first guide 15, the two second rotating rods 19 gradually overlap, and the two first rotating rods 18 gradually fold together.

[0040] like Figure 5As shown, the first rotating rod 18 in the first link mechanism drives the first gear 23 to rotate clockwise, and the first gear 23 drives the second gear 24 in the second link mechanism to rotate counterclockwise. In the second link mechanism, the second gear 24 drives the second rotating rod 19 to rotate counterclockwise around the axis of the second gear 24, thereby causing the middle connecting frame 27 between the first link mechanism and the second link mechanism to move forward, and the corresponding second director 16 to move forward. The middle connecting frame 27 between the first link mechanism and the second link mechanism drives the second link mechanism to move, and the first rotating rod 18 and the second rotating rod 19 in the second link mechanism both rotate toward the outside of the U-shaped frame 25. When the first rotating rod 18 in the second link mechanism rotates, it drives the corresponding first gear 23 to rotate clockwise, and the corresponding second gear 24 to rotate counterclockwise, and then the corresponding second rotating rod 19 in the third link mechanism rotates counterclockwise, and the middle connecting frame 27 between the second link mechanism and the third link mechanism moves forward, and the corresponding second director 16 moves forward. The first rotating rod 18 and the second rotating rod 19 in the third link mechanism both rotate toward the outside of the corresponding U-shaped frame 25 , and the first rotating rod 18 and the second rotating rod 19 gradually change toward a direction perpendicular to the first director 15 .

[0041] When the first rotating rod 18 in the third link mechanism rotates toward the outside of the U-shaped frame 25, the first gear 23 on the I-shaped frame 3 rotates clockwise, and the second gear 24 on the I-shaped frame 3 rotates counterclockwise, so that the corresponding third rotating rod 20 rotates counterclockwise around the axis of the second gear 24. Due to the position limitation of the I-shaped frame 3, the two U-shaped frames 25 move backward while approaching each other, and the rear connecting frame 29 moves backward. The third rotating rod 20 and the fourth rotating rod 21 gradually change to a direction perpendicular to the reflector 22. The U-shaped frame 25 moves backward, driving the reflector 22 to move backward, so that the reflector 22 gradually moves away from the second shell 4. The reflector 22 pulls the slider 31 through the slide rod 32, so that the slider 31 slides along the slide groove 30.

[0042] In the first link mechanism, the second link mechanism and the third link mechanism, when the corresponding two U-shaped frames 25 approach each other, the U-shaped frames 25 slide along the first guide 15 through the through hole 33, and at the same time, the U-shaped frames 25 drive the first guide 15 to move forward, and the distance between the first guide 15 and the second guide 16 gradually increases until the two U-shaped frames 25 abut against each other, the corresponding two first rotating rods 18 overlap together, and the corresponding two second rotating rods 19 overlap together, and the first rotating rod 18 and the second rotating rod 19 support the first guide 15 and the second guide 16. In the fourth link mechanism, when the two U-shaped frames 25 approach each other, the U-shaped frames 25 slide along the reflector 22 through the through hole 33 until the two U-shaped frames 25 abut against each other, the two third rotating rods 20 overlap together, and the two fourth rotating rods 21 overlap together, and the third rotating rod 20 and the fourth rotating rod 21 support the reflector 22. The device is in an unfolded state, such as Figure 7 As shown, the second threaded rod 36 is then screwed so that one end of the second threaded rod 36 extends into the second fixing block 35, and the two U-shaped frames 25 in the first connecting rod mechanism are fixed together, thereby putting the unfolded device in a locked state. The four linkage mechanisms move simultaneously, allowing the device to be deployed quickly.

[0043] When storage is required, the second threaded rod 36 is screwed to make the second threaded rod 36 disengage from the second fixed block 35. Then, the front connecting frame 28 is pushed in the direction close to the second shell 4. On the second side of the I-shaped frame 3, the two second rotating rods 19 in the same connecting rod structure are gradually unfolded, and the two first rotating rods 18 are gradually unfolded, and the first rotating rod 18 and the second rotating rod 19 are gradually changed to a state parallel to the first guide 15. At the same time, the two U-shaped frames 25 are gradually separated, and the U-shaped frame 25 slides outward along the first guide 15. The U-shaped frame 25 and the middle connecting frame 27 are gradually moving in the direction close to the second shell 4, the telescopic mechanism is gradually contracted, the first guide 15 and the second guide 16 are gradually moved in the direction close to the second shell 4, and the distance between the first guide 15 and the second guide 16 is gradually reduced.

[0044] At the same time, when the two first rotating rods 18 in the third linkage mechanism rotate, the first gear 23 on the I-shaped frame 3 rotates, the second gear 24 on the I-shaped frame 3 rotates, the fourth linkage mechanism moves, the two third rotating rods 20 gradually unfold and change to a state parallel to the reflector 22, the two fourth rotating rods 21 gradually unfold and change to a direction parallel to the reflector 22, the two U-shaped frames 25 gradually move away, and the U-shaped frames 25 and the reflector 22 both move in a direction close to the second shell 4 until the device returns to the storage state.

[0045] Then, the first threaded rod 7 is screwed to move the blocking rod 8 upward, and the blocking rod 8 limits the rear connecting frame 29 to prevent the device from being accidentally opened.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A portable antenna device, characterized in that: The invention comprises a first shell (2), a telescopic mechanism and a connecting rod mechanism; the first shell (2) is fixedly connected to the second shell (4), and a gap is provided between the first shell (2) and the second shell (4); both sides of the second shell (4) are connected to an active vibrator (5); a fixed cylinder (9) is fixedly connected inside the second shell (4), one end of the telescopic mechanism is slidably connected to the fixed cylinder (9), and the telescopic mechanism comprises a plurality of telescopic rods slidably connected in sequence; there are a plurality of connecting rod mechanisms, each of which comprises two U-shaped frames (25), a rotating rod and two connecting frames, each U-shaped frame (25) is rotatably connected to the two rotating rods, and the other ends of the two rotating rods on the same U-shaped frame (25) are connected to the fixed cylinder (9). The two U-shaped frames (25) are rotatably connected to the two connecting frames respectively; a reflector (22) is slidably connected between the two U-shaped frames (25) of one of the connecting rod mechanisms, and a first director (15) is slidably connected between the two U-shaped frames (25) of the other connecting rod mechanisms, and the first director (15) is connected to the telescopic mechanism; adjacent connecting frames between adjacent connecting rod mechanisms are fixedly connected, wherein a pair of fixedly connected connecting frames is fixedly connected to the first shell (2); the connecting frame at the end is pulled so that the connecting rod mechanism gradually moves away from the second shell (4), the two U-shaped frames (25) in the same connecting rod mechanism gradually approach each other, and the distance between the U-shaped frames (25) between adjacent connecting rod mechanisms gradually increases, thereby the device is deployed.

2. A portable antenna device according to claim 1, characterized in that: A connecting frame fixedly connected to the first shell (2) forms an I-shaped frame (3); one of the connecting rod mechanisms is located on a first side of the I-shaped frame (3), and the other connecting rod mechanisms are all located on a second side of the I-shaped frame (3).

3. A portable antenna device according to claim 2, characterized in that: Among the plurality of connecting rod mechanisms located on the second side of the I-shaped frame (3), a second director (16) is provided between adjacent connecting rod mechanisms, and the second director (16) is fixedly connected to a corresponding connecting frame.

4. A portable antenna device according to claim 2, characterized in that: The reflector (22) is slidably arranged between two U-shaped frames (25) on a first side of the I-shaped frame (3); a sliding rod (32) is arranged between the reflector (22) and the fixed cylinder (9); a sliding groove (30) is provided on the fixed cylinder (9); a sliding block (31) is slidably arranged in the sliding groove (30); one end of the sliding rod (32) is connected to the sliding block (31); the other end of the sliding rod (32) is connected to a second connecting block (37); and the second connecting block (37) is fixedly connected to the reflector (22).

5. The portable antenna device according to claim 1, characterized in that: A transmission assembly is provided between adjacent link mechanisms, the transmission assembly comprising a first gear (23) and a second gear (24) meshing with the first gear (23), the first gear (23) and the second gear (24) being respectively fixedly connected to one end of two adjacent rotating rods between the two link mechanisms and away from the U-shaped frame (25).

6. A portable antenna device according to claim 5, characterized in that: In one of the connecting rod mechanisms, a first fixing block (34) is fixedly connected to one of the U-shaped frames (25), and a second threaded rod (36) is threadedly connected to the first fixing block (34); and a second fixing block (35) is fixedly connected to the other U-shaped frame (25), and a threaded hole matching the second threaded rod (36) is formed on the second fixing block (35).

7. The portable antenna device according to claim 6, characterized in that: The first housing (2) is slidably provided with a stop rod (8) for limiting the position of the connecting rod mechanism; a fixing rod (6) is fixed to one end of the first housing (2) away from the second housing (4); the fixing rod (6) is rotatably connected to a first threaded rod (7); and the first threaded rod (7) is threadedly connected to the stop rod (8).

8. The portable antenna device according to claim 1, characterized in that: A guide ring (26) is fixedly connected to the inner side of the U-shaped frame (25), and a through hole (33) communicating with the guide ring (26) is provided on the U-shaped frame (25).

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