Mobile shortwave antenna

Abstract

A mobile shortwave antenna comprises a swivel mechanism, a support mechanism, an extension mechanism and an antenna mechanism; the swivel mechanism comprises a fixing part and a rotating part connected to the fixing part; the support mechanism comprises a first support arm, a second support arm slidably mounted on the first support arm and a third support arm hinged to the second support arm; one end of the first support arm is hinged to the rotating part; the extension mechanism comprises a first extension arm and a second extension arm slidably mounted on the first extension arm; the antenna mechanism comprises a first antenna layer connected to the first extension arm and a second antenna layer connected to the second extension arm. The mobile shortwave antenna is extended by sliding the second support arm on the first support arm, raised and lowered by hingedly mounting the first support arm on the rotating part and hingedly mounting the third support arm on the second support arm, pitched by hingedly mounting the first support arm on the rotating part after unfolding, and the distance between the second antenna layer and the first antenna layer is adjusted by sliding the second extension arm on the first extension arm. The shortwave antenna can be folded and extended, and is easy to install.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, in particular to a mobile shortwave antenna. Background Art

[0002] At present, large shortwave antennas used in the field of long-distance communications are basically composed of multiple layers of arrays supported by truss beams and supporting iron towers. Each layer of arrays is arranged according to a certain pattern, with a wide frequency band and large available power, and can provide ultra-long-distance communication functions. However, they also have the following disadvantages: the antenna is large in size and has many accessories. Large scaffolding needs to be built during installation, and it needs to be dismantled after installation, which greatly increases the cost and takes a long time to install. Later maintenance is also very inconvenient; the antenna is high, and installation and maintenance require professional high-altitude workers, and the risk factor is high. Summary of the invention

[0003] Based on this, it is necessary to provide a mobile shortwave antenna that is easy to operate and foldable and extendable to address the above problems.

[0004] A mobile shortwave antenna comprises a swivel mechanism, a support mechanism, an extension mechanism and an antenna mechanism; the swivel mechanism comprises a fixing part and a rotating part connected to the fixing part; the support mechanism comprises a first support arm, a second support arm slidably arranged on the first support arm and a third support arm hinged to the second support arm; one end of the first support arm is hinged to the rotating part; the extension mechanism comprises a first extension arm and a second extension arm slidably arranged on the first extension arm; the antenna mechanism comprises a first antenna layer connected to the first extension arm and a second antenna layer connected to the second extension arm.

[0005] The mobile shortwave antenna of the present invention is extended by sliding the second support arm on the first support arm, raised and lowered by hingedly connecting the first support arm to a rotating member and hingedly connecting the third support arm to the second support arm, and pitched after being unfolded by hingedly connecting the first support arm to a rotating member, and the distance between the second antenna layer and the first antenna layer is adjusted by sliding the second extension arm on the first extension arm. The mobile shortwave antenna has a simple structure, can be folded and extended, and is easy to install and maintain.

[0006] In one embodiment, the support mechanism also includes a polarization power element; one end of the polarization power element is hinged to the third support arm, and the other end is hinged to the second antenna layer; the polarization power element is used to drive the extension mechanism and the antenna mechanism to rotate around the third support arm.

[0007] In one embodiment, the support mechanism further includes a first driving element; one end of the first driving element is hinged to the rotating member, and the other end is hinged to the first supporting arm; the first driving element is used to drive the first supporting arm to rotate around the rotating member.

[0008] In one embodiment, the support mechanism further includes a second driving element; one end of the second driving element is hinged to the second support arm, and the other end is hinged to the third support arm; the second driving element is used to drive the third support arm to rotate around the second support arm.

[0009] In one embodiment, the slewing mechanism also includes a first swing leg, a second swing leg, a third swing leg and a fourth swing leg respectively hinged to the four end corners of the fixing member; the first swing leg and the third swing leg are arranged at the same end of the fixing member; the second swing leg and the fourth swing leg are arranged at the other end of the fixing member.

[0010] In one embodiment, the rotating mechanism also includes a first power element, a second power element, a third power element and a fourth power element; the first power element, the second power element, the third power element and the fourth power element are respectively used to drive the first swing leg, the second swing leg, the third swing leg and the fourth swing leg to rotate.

[0011] In one embodiment, the extension mechanism further includes a telescopic power element; the telescopic power element is respectively connected to the first extension arm and the second extension arm; the telescopic power element is used to drive the second extension arm to be slidably disposed on the first extension arm.

[0012] In one embodiment, the rotary mechanism further includes a rotary connecting member and a reducer disposed on the rotating member; the fixed member and the rotating member are respectively connected to the rotary connecting member; and the reducer is meshed with the rotary connecting member.

[0013] In one of the embodiments, it further includes a traction mechanism; the traction mechanism includes a traction vehicle and an axle; the traction vehicle is detachably connected to the rotating member; and the axle is detachably connected to the first support arm.

[0014] In one of the embodiments, it also includes a control mechanism; the control mechanism is signal-connected to the rotating mechanism, the supporting mechanism, the extending mechanism and the antenna mechanism respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of a transport state of a mobile shortwave antenna according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 The schematic diagram of the front view of the mobile shortwave antenna in the raised state shown;

[0017] Figure 3 for Figure 2 A schematic front view of a mobile shortwave antenna in which the first support arm and the second support arm are in a vertical state;

[0018] Figure 4 for Figure 3 A schematic front view of a mobile shortwave antenna in which the second support arm is in an extended state;

[0019] Figure 5 for Figure 4 A schematic front view of the mobile shortwave antenna showing a first extension arm, a second extension arm, a third extension arm and a fourth extension arm in a fully extended state;

[0020] Figure 6 for Figure 5 A schematic front view of the mobile shortwave antenna in which the antenna mechanism is deployed;

[0021] Figure 7 for Figure 6 Enlarged view of the middle circle A part;

[0022] Figure 8 for Figure 5 A schematic top view of the mobile shortwave antenna in the unfolded state of the antenna mechanism shown;

[0023] Fig. 9 for Figure 5 A left schematic diagram of a mobile shortwave antenna in which the antenna mechanism is rotated to 45 degrees;

[0024] Fig.10 for Fig. 9 Enlarged view of the middle circle B part;

[0025] Fig.11 for Figure 5 A schematic front view of the mobile shortwave antenna in which the antenna mechanism is rotated to 90 degrees;

[0026] Fig.12 for Figure 5 The schematic top view of the mobile shortwave antenna is shown in the state where the antenna mechanism is rotated to 90 degrees.

[0027] Notes on the attached drawings:

[0028] Mobile shortwave antenna 100;

[0029] Traction mechanism 10, tractor 11, axle 12, slewing mechanism 20, fixed part 21, rotating part 22, slewing connecting part 23, speed reducer 24, second swing leg 25, fourth swing leg 26, second supporting power element 27, fourth supporting power element 28;

[0030] Support mechanism 30, first support arm 31, second support arm 32, third support arm 33, first driving element 34, second driving element 35, polarization power element 36, extension mechanism 40, first extension arm 41, second extension arm 42, third extension arm 43, fourth extension arm 44, antenna mechanism 50, first antenna layer 51, second antenna layer 52, third antenna layer 53, fourth antenna layer 54. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more fully below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] See also Figures 1 to 12 , which is a mobile shortwave antenna 100 according to an embodiment of the present invention, includes a traction mechanism 10, a rotating mechanism 20, a supporting mechanism 30, an extending mechanism 40 and an antenna mechanism 50; the mobile shortwave antenna 100 of the present invention realizes horizontal rotation through the rotating mechanism 20, realizes extension and lifting through the supporting mechanism 30, and adjusts the distance of the antenna mechanism 50 through the extending mechanism 40.

[0034] like Figure 1 As shown, in this embodiment, for the convenience of transportation, the mobile shortwave antenna 100 includes a traction mechanism 10; the traction mechanism 10 includes a tractor 11 and an axle 12. Optionally, the tractor 11 is a trailer head, which provides traction for the whole vehicle to travel on the road, and can make the whole vehicle travel at a speed of 80km / h; the axle 12 is a two-axle axle, using 8 load-bearing tires with a diameter of 1.1m.

[0035] like Figure 2As shown, the slewing mechanism 20 includes a fixed member 21 and a rotating member 22 connected to the fixed member 21; the slewing mechanism 20 also includes a slewing connecting member 23 and a reducer 24 arranged on the rotating member 22; the fixed member 21 and the rotating member 22 are respectively connected to the slewing connecting member 23; the reducer 24 is meshed with the slewing connecting member 23 to control the horizontal rotation of the rotating member 22 relative to the fixed member 21. Optionally, the slewing connecting member 23 is a gear; the rotation range of the rotating member 22 relative to the fixed member 21 is 360 degrees. Further, the tractor 11 and the rotating member 22 are detachably connected. In order to support the fixed member 21, the slewing mechanism 20 also includes a first swing leg (not shown), a second swing leg 25, a third swing leg (not shown) and a fourth swing leg 26 respectively articulated at the four end corners of the fixed member 21; the first swing leg and the third swing leg are arranged at the same end of the fixed member 21; the second swing leg 25 and the fourth swing leg 26 are arranged at the other end of the fixed member 21. During transportation, the third swing leg and the first swing leg are parallel to one side of the fixing member 21, and the third swing leg is located outside the first swing leg; the fourth swing leg 26 and the second swing leg 25 are parallel to the other side of the fixing member 21, and the fourth swing leg 26 is located outside the second swing leg 25. The slewing mechanism 20 also includes a first power element (not shown), a second power element (not shown), a third power element (not shown) and a fourth power element (not shown); the first power element, the second power element, the third power element and the fourth power element are used to drive the first swing leg, the second swing leg 25, the third swing leg and the fourth swing leg 26 to rotate, respectively. Optionally, one end of the first power element is hinged to one end of the fixing member 21, and the other end is hinged to one side of the first swing leg; one end of the second power element is hinged to one end of the fixing member 21, and the other end is hinged to one side of the second swing leg 25; one end of the third power element is hinged to one end of the fixing member 21 away from the first swing leg, and the other end is hinged to one side of the third swing leg; one end of the fourth power element is hinged to one end of the fixing member 21 away from the second swing leg 25, and the other end is hinged to one side of the fourth swing leg 26. Further, the first power element, the second power element, the third power element and the fourth power element are all oil cylinders.In order to adjust the height of the fixing member 21, the slewing mechanism 20 also includes a first supporting power element (not shown), a second supporting power element 27, a third supporting power element (not shown) and a fourth supporting power element 28; the first supporting power element, the second supporting power element 27, the third supporting power element and the fourth supporting power element 28 are respectively used to adjust the height of the first swing leg, the second swing leg 25, the third swing leg and the fourth swing leg 26; optionally, the first supporting power element, the second supporting power element 27, the third supporting power element and the fourth supporting power element 28 are respectively arranged at one end of the first swing leg, the second swing leg 25, the third swing leg and the fourth swing leg 26 away from the fixing member 21; further, the first supporting power element, the second supporting power element 27, the third supporting power element and the fourth supporting power element 28 are all cylinders.

[0036] Please also read Figures 3 to 10The support mechanism 30 includes a first support arm 31, a second support arm 32 slidably mounted on the first support arm 31, and a third support arm 33 hinged to the second support arm 32; one end of the first support arm 31 is hinged to the rotating member 22; the axle 12 is detachably connected to the first support arm 31. Optionally, the first support arm 31 is mounted on the rotating member 22 via a pin; the third support arm 33 is connected to the second support arm 32 via a pin. Further, the first support arm 31 and the second support arm 32 are coaxially arranged; in the transport state, the axis of the third support arm 33 is perpendicular to the axis of the first support arm 31 and the second support arm 32 respectively; in the unfolded state, the axis of the third support arm 33 is coaxial with the axis of the first support arm 31 and the second support arm 32 respectively. In order to achieve lifting, the support mechanism 30 also includes a first driving element 34; one end of the first driving element 34 is hinged to the rotating member 22, and the other end is hinged to the first supporting arm 31; the first driving element 34 is used to drive the first supporting arm 31 to rotate around the rotating member 22; the rotation range of the first supporting arm 31 is 0 degrees to 90 degrees. Optionally, the support mechanism 30 also includes a second driving element 35; one end of the second driving element 35 is hinged to the second supporting arm 32, and the other end is hinged to the third supporting arm 33; the second driving element 35 is used to drive the third supporting arm 33 to rotate around the second supporting arm 32; the rotation range of the third supporting arm 33 is 0 degrees to 90 degrees. Further, the support mechanism 30 also includes a polarization power element 36; one end of the polarization power element 36 is hinged to the third supporting arm 33, and the other end is hinged to the antenna mechanism 50; the polarization power element 36 is used to drive the extension mechanism 40 and the antenna mechanism 50 to rotate around the third supporting arm 33. In one embodiment, the first driving element 34, the second driving element 35, and the polarization power element 36 are all oil cylinders. During the process of folding to unfolding, the first support arm 31 rotates around the rotating member 22, and the third support arm 33 rotates clockwise around the second support arm 32, and the two actions work in coordination to achieve amplitude change; when fully unfolded, the third support arm 33 and the second support arm 32 remain stationary, and the first support arm 31 rotates around the rotating member 22 to achieve pitch.

[0037] In order to save space, the extension mechanism 40 includes a first extension arm 41 and a second extension arm 42 slidably mounted on the first extension arm 41; the extension mechanism 40 also includes a telescopic power element (not shown); the telescopic power element is respectively connected to the first extension arm 41 and the second extension arm 42; the telescopic power element is used to drive the second extension arm 42 to be slidably mounted on the first extension arm 41. Optionally, the telescopic power element is a rope row. In one embodiment, the extension mechanism 40 also includes a third extension arm 43 and a fourth extension arm 44 slidably mounted on the third extension arm 43; optionally, the first extension arm 41, the second extension arm 42, the third extension arm 43 and the fourth extension arm 44 are coaxially arranged; the telescopic power element is respectively connected to the first extension arm 41, the second extension arm 42, the third extension arm 43 and the fourth extension arm 44; the telescopic power element is used to drive the third extension arm 42 to be slidably mounted on the second extension arm 42, and the fourth extension arm 44 to be slidably mounted on the third extension arm 43.

[0038] See also Fig.11 and Fig.12, the antenna mechanism 50 includes a first antenna layer 51 connected to the first extension arm 41 and a second antenna layer 52 connected to the second extension arm 42. The first antenna layer 51 is connected to the pin hole of the first extension arm 41 through a pin shaft, and the second antenna layer 52 is connected to the pin hole of the second extension arm 42 through a pin shaft; in the transportation state, the second antenna layer 52 is installed on the first antenna layer 51, and the first antenna layer 51 and the second antenna layer 52 are arranged in parallel. Optionally, the antenna mechanism 50 also includes a third antenna layer 53 connected to the third extension arm 43, and a fourth antenna layer 54 connected to the fourth extension arm 44; the third antenna layer 53 is connected to the pin hole of the third extension arm 43 through a pin shaft, and the fourth antenna layer 54 is connected to the pin hole of the fourth extension arm 44 through a pin shaft; in the transportation state, the third antenna layer 53 is installed on the second antenna layer 52, and the fourth antenna layer 54 is installed on the third antenna layer 53, and the second antenna layer 52, the third antenna layer 53 and the fourth antenna layer 54 are arranged in parallel. Furthermore, one end of the polarized power element 36 is hinged to the third support arm 33, and the other end is hinged to the second antenna layer 52; the rotation range of the extension mechanism 40 and the antenna mechanism 50 is 0 to 90 degrees. The spacing between the first antenna layer 51, the second antenna layer 52, the third antenna layer 53 and the fourth antenna layer 54 and the height of the antenna mechanism 50 are adjusted by the extension and contraction of the first extension arm 41, the second extension arm 42, the third extension arm 43 and the fourth extension arm 44; the polarized power element 36 drives the antenna mechanism 50 to rotate to achieve horizontal and vertical switching. During transportation, the second extension arm 42, the third extension arm 43 and the fourth extension arm 44 are all in a retracted state, so that the first antenna layer 51, the second antenna layer 52, the third antenna layer 53 and the fourth antenna layer 54 are in a compressed state, effectively reducing the transportation size and facilitating installation and maintenance. During operation, the second extension arm 42, the third extension arm 43 and the fourth extension arm 44 are all in an extended state, which is convenient for receiving and transmitting signals. In order to realize automatic control, the mobile shortwave antenna 100 further comprises a control mechanism; the control mechanism is respectively connected to the rotating mechanism 20, the supporting mechanism 30, the extending mechanism 40 and the antenna mechanism 50 by signals.

[0039] like Figure 1As shown, in the transport state, the rotating member 22 is movably connected to the tractor 11, and the rotating member 22 and the fixed member 21 are at an initial angle and locked; the first swing leg, the second swing leg 25, the third swing leg and the fourth swing leg 26 are all in a folded state; the support mechanism 30 is in a horizontal state and locked, and the antenna mechanism 50 is in a horizontal state. After arriving at the destination, the control mechanism controls the first power element, the second power element, the third power element and the fourth power element to respectively drive the first swing leg, the second swing leg 25, the third swing leg and the fourth swing leg 26 to unfold and fix, and then the control mechanism controls the first support power element, the second support power element 27, the third support power element and the fourth support power element 28 to extend, and while leveling the fixed member 21, the connecting pin between the rotating member 22 and the tractor 11 is also separated from the tractor 11, and the tractor 11 moves forward and separates from the rotating member 22. The connecting pin between the first support arm 31 and the axle 12 is disassembled, and the axle 12 is moved back and separated from the first support arm 31.

[0040] Then, if Figure 2 As shown, the control mechanism controls the first driving element 34 to extend, so that the first support arm 31 rotates and rises around the rotating member 22. At the same time, the control mechanism controls the second driving element 35 to extend, so that the third support arm 33 rotates around the second support arm 32. The control mechanism adjusts the first driving element 34 and the second driving element 35 so that the antenna mechanism 50 always maintains a horizontal state during the rising process. During the rising process of the antenna mechanism 50, the first antenna layer 51, the second antenna layer 52, the third antenna layer 53 and the fourth antenna layer 54 are locked between adjacent layers. Figure 3 As shown, after the arm raising process of the support mechanism 30 and the antenna mechanism 50 is completely completed, the support mechanism 30 is perpendicular to the upper plane of the rotating member 22, the antenna mechanism 50 is in a horizontal state, and the adjacent antenna layers are still locked. Figure 4As shown, after the support mechanism 30 has raised its arm and the antenna mechanism 50 has risen, the control mechanism cancels the locking between the antenna layers and controls the locking of the antenna layers with the extension arms. Next, the control mechanism controls the second support arm 32 to move upward; after the second support arm 32 has completed its extension, the control mechanism controls the telescopic power element to operate, and the telescopic power element drives the second extension arm 42, the third extension arm 43 and the fourth extension arm 44 to extend, and due to the structural principle of the extension arm, the speed ratio of the second extension arm 42, the third extension arm 43 and the fourth extension arm 44 to extend is 1:2:3. At the same time, since the third support arm 33 is hinged with the second antenna layer 52, the distance between the second antenna layer 52 and the ground remains unchanged. Due to the operation of the telescopic power element, the first extension arm 41 moves downward, the third extension arm 43 and the fourth extension arm 44 move upward, and at the same time, the second extension arm 42, the third extension arm 43 and the fourth extension arm 44 drive the second antenna layer 52, the third antenna layer 53 and the fourth antenna layer 54 to extend.

[0041] like Figure 5 As shown, after the control mechanism controls the telescopic power element to fully extend; Figures 6 to 8 As shown, the control mechanism controls the movable mechanism in each antenna layer to unfold the four-layer array. At this time, long-distance communication can be achieved by transmitting signals. At the same time, the rotating member 22 can rotate around the fixed member 21 within a range of 360 degrees, and can accurately locate the location where communication is required. After the array of each antenna layer is fully unfolded, the control mechanism controls the polarization power element 36 to extend, and then the extension mechanism 40 and the antenna mechanism 50 will rotate around the third support arm 33 as a whole, as shown in FIG. Fig. 9 and Fig.10 The figure shows the state of the antenna mechanism 50 when the polarization changes by 45 degrees; the polarization power element 36 continues to extend, and the extension mechanism 40 and the antenna mechanism 50 continue to rotate until the polarization power element 36 completes the extension, as shown in FIG. Fig.11 and Fig.12 At this time, the antenna mechanism 50 is in a vertical polarization state, and the signal transmission can realize short-distance communication. At the same time, the rotating member 22 can rotate around the fixed member 21 within a range of 360 degrees, and can accurately locate the location where communication is required. The folding process of the mobile shortwave antenna 100 is exactly the opposite of the unfolding process, and will not be described in detail.

[0042] It should be noted that the structure of the mobile shortwave antenna 100 has been verified by ADAMS mechanism simulation and PROE mechanism analysis module analysis, so it only needs to be operated according to the operating procedures during the movement.

[0043] The mobile shortwave antenna 100 of the present invention is extended by sliding the second support arm 32 on the first support arm 31, lifted by hingedly connecting the first support arm 31 to the rotating member 22 and hingedly connecting the third support arm 33 to the second support arm 32, and pitched by hingedly connecting the first support arm 31 to the rotating member 22 after being unfolded, and the distance between the second antenna layer 52 and the first antenna layer 51 is adjusted by sliding the second extension arm 42 on the first extension arm 41. The mobile shortwave antenna 100 has a simple structure, can be folded and extended, and is easy to install and maintain.

[0044] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0045] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A mobile shortwave antenna, characterized in that: It includes a rotating mechanism, a supporting mechanism, an extending mechanism and an antenna mechanism; the rotating mechanism includes a fixing part and a rotating part connected to the fixing part; the supporting mechanism includes a first supporting arm, a second supporting arm slidably arranged on the first supporting arm, a third supporting arm hinged to the second supporting arm, a second driving element and a polarization power element; one end of the first supporting arm is hinged to the rotating part; the second driving element is used to drive the third supporting arm to rotate around the second supporting arm; the extending mechanism includes a first extending arm and a second extending arm slidably arranged on the first extending arm; the extending mechanism also includes a telescopic power element, which is used to drive the second extending arm to be slidably arranged on the first extending arm, and the antenna mechanism includes a first antenna layer connected to the first extending arm and a second antenna layer connected to the second extending arm; the polarization power element is used to drive the extending mechanism and the antenna mechanism to rotate around the third supporting arm; when the polarization power element completes the extension, the antenna mechanism is in a vertical polarization state.

2. The mobile shortwave antenna according to claim 1, characterized in that: The supporting mechanism also includes: one end of the polarization power element is hinged to the third supporting arm, and the other end is hinged to the second antenna layer.

3. The mobile shortwave antenna according to claim 1, characterized in that: The support mechanism also includes a first driving element; one end of the first driving element is hinged to the rotating member, and the other end is hinged to the first supporting arm; the first driving element is used to drive the first supporting arm to rotate around the rotating member.

4. The mobile shortwave antenna according to claim 1, characterized in that: One end of the second driving element is hinged to the second supporting arm, and the other end of the second driving element is hinged to the third supporting arm.

5. The mobile shortwave antenna according to claim 1, characterized in that: The slewing mechanism also includes a first swing leg, a second swing leg, a third swing leg and a fourth swing leg which are respectively hinged to the four end corners of the fixing member; the first swing leg and the third swing leg are arranged at the same end of the fixing member; the second swing leg and the fourth swing leg are arranged at the other end of the fixing member.

6. The mobile shortwave antenna according to claim 5, characterized in that: The rotating mechanism also includes a first power element, a second power element, a third power element and a fourth power element; the first power element, the second power element, the third power element and the fourth power element are respectively used to drive the first swing leg, the second swing leg, the third swing leg and the fourth swing leg to rotate.

7. The mobile shortwave antenna according to claim 1, characterized in that: The telescopic power element is connected to the first extension arm and the second extension arm respectively.

8. The mobile shortwave antenna according to claim 1, characterized in that: The rotary mechanism also includes a rotary connecting member and a reducer arranged on the rotating member; the fixed member and the rotating member are respectively connected to the rotary connecting member; and the reducer is meshed with the rotary connecting member.

9. The mobile shortwave antenna according to claim 1, characterized in that: It also includes a traction mechanism; the traction mechanism includes a traction vehicle and an axle; the traction vehicle is detachably connected to the rotating part; and the axle is detachably connected to the first support arm.

10. The mobile shortwave antenna according to claim 1, characterized in that: It also includes a control mechanism; the control mechanism is respectively connected with the rotating mechanism, the supporting mechanism, the extending mechanism and the antenna mechanism by signals.

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