CN211789422U - Mobile short wave antenna - Google Patents

Abstract

A mobile short wave antenna comprises a slewing mechanism, a supporting mechanism, an extending mechanism and an antenna mechanism; the swing mechanism comprises a fixed part and a rotating part connected with the fixed part; the supporting mechanism comprises a first supporting arm, a second supporting arm arranged on the first supporting arm in a sliding mode and a third supporting arm hinged with the second supporting arm; one end of the first supporting arm is hinged with the rotating part; the stretching mechanism comprises a first stretching arm and a second stretching arm arranged on the first stretching arm in a sliding manner; the antenna mechanism includes a first antenna layer connected to the first extension arm and a second antenna layer connected to the second extension arm. This portable short wave antenna slides through the second support arm and locates first support arm and realize extending, articulates through first support arm and rotates and the articulated second support arm of third support arm and realize going up and down, expandes the back and articulates through first support arm and rotates and realize the every single move, slides through the second extension arm and locates first extension arm and adjust the distance on second antenna layer and first antenna layer. This short wave antenna collapsible extension, simple to operate.

Description

Mobile short wave antenna

Technical Field

The utility model relates to a communication equipment technical field especially relates to a portable short wave antenna.

Background

At present, the large-scale short wave antenna that the telecommunications field was used all comprises the array that the truss girder was used to the multilayer and supports the iron tower in addition, and every layer of array is arranged according to certain rule, and the frequency band scope is wide, and available power is big, can provide super remote communication function, nevertheless also has following shortcoming: the antenna is large in size and multiple in accessories, a large scaffold needs to be built during installation, and the large scaffold needs to be dismantled after installation, so that the cost is greatly increased, the installation period is long, and the later maintenance is inconvenient; the antenna is high in height, needs professional high-altitude operation personnel for installation and maintenance, and is high in danger coefficient.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a mobile short-wave antenna that is easy to operate and can be folded and extended.

A mobile short wave antenna comprises a slewing mechanism, a supporting mechanism, an extending mechanism and an antenna mechanism; the slewing mechanism comprises a fixed part and a rotating part connected with the fixed part; the supporting mechanism comprises a first supporting arm, a second supporting arm arranged on the first supporting arm in a sliding mode and a third supporting arm hinged to the second supporting arm; one end of the first supporting arm is hinged with the rotating piece; the stretching mechanism comprises a first stretching arm and a second stretching arm arranged on the first stretching arm in a sliding manner; the antenna mechanism comprises a first antenna layer connected with the first extension arm and a second antenna layer connected with the second extension arm.

The utility model discloses a portable short wave antenna slides through the second support arm and locates first support arm and realize extending, articulates through first support arm and rotates and the articulated second support arm of third support arm and realize going up and down, expandes the back and articulates through first support arm and rotates and realize the every single move, glides through the second extending arm and locates first extending arm and adjust the distance on second antenna layer and first antenna layer. This portable short wave antenna's simple structure, collapsible extension, installation maintain convenient.

In one embodiment, the support mechanism further comprises a polarizing motive element; one end of the polarized power element is hinged with the third supporting arm, and the other end of the polarized power element is hinged with the second antenna layer; and the polarized power element is used for driving the extension mechanism and the antenna mechanism to rotate around the third supporting arm.

In one embodiment, the support mechanism further comprises a first drive element; one end of the first driving element is hinged with the rotating piece, and the other end of the first driving element is hinged with the first supporting arm; the first driving element is used for driving the first supporting arm to rotate around the rotating part.

In one embodiment, the support mechanism further comprises a second drive element; one end of the second driving element is hinged with the second supporting arm, and the other end of the second driving element is hinged with the third supporting arm; the second driving element is used for driving the third supporting arm to rotate around the second supporting arm.

In one embodiment, the swing mechanism further comprises a first swing leg, a second swing leg, a third swing leg and a fourth swing leg which are respectively hinged with four corners of the fixing member; the first swing supporting leg and the third swing supporting leg are arranged at the same end of the fixing piece; the second swing supporting leg and the fourth swing supporting leg are arranged at the other end of the fixing piece.

In one embodiment, the swing mechanism further comprises 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 for driving the first swing supporting leg, the second swing supporting leg, the third swing supporting leg and the fourth swing supporting leg to rotate.

In one embodiment, the extension mechanism further comprises a telescopic power element; the telescopic power element is respectively connected with the first stretching arm and the second stretching arm; the telescopic power element is used for driving the second stretching arm to be slidably arranged on the first stretching arm.

In one embodiment, the swing mechanism further comprises a swing connecting piece and a speed reducer arranged on the rotating piece; the fixed piece and the rotating piece are respectively connected with the rotary connecting piece; the speed reducer is meshed with the rotary connecting piece.

In one embodiment, the device further comprises a traction mechanism; the traction mechanism comprises a tractor and an axle; the tractor is detachably connected with the rotating part; the axle is detachably connected with the first supporting arm.

In one embodiment, the device further comprises a control mechanism; the control mechanism is respectively in signal connection with the slewing mechanism, the supporting mechanism, the stretching mechanism and the antenna mechanism.

Drawings

Fig. 1 is a schematic view of a transportation state of a mobile short wave antenna according to an embodiment of the present invention;

fig. 2 is a schematic elevation view of the mobile short-wave antenna shown in fig. 1;

fig. 3 is a schematic front view of the mobile short-wave antenna shown in fig. 2 in a vertical state of the first support arm and the second support arm;

fig. 4 is a schematic front view of the mobile short wave antenna shown in fig. 3 in an extended state of the second support arm;

fig. 5 is a schematic front view of the mobile short-wave antenna shown in fig. 4 in a state where a first extending arm, a second extending arm, a third extending arm and a fourth extending arm are fully extended;

FIG. 6 is a schematic front view of the antenna mechanism of the mobile short wave antenna of FIG. 5 in an expanded state;

FIG. 7 is an enlarged view of the portion circled A in FIG. 6;

fig. 8 is a schematic top view of the antenna mechanism of the mobile short wave antenna of fig. 5 in a deployed state;

fig. 9 is a left side view schematically illustrating the antenna mechanism of the mobile short-wave antenna shown in fig. 5 rotated to a 45-degree state;

FIG. 10 is an enlarged view of the portion circled B in FIG. 9;

fig. 11 is a schematic front view of the antenna mechanism of the mobile short-wave antenna shown in fig. 5 rotated to 90 degrees;

fig. 12 is a schematic top view of the antenna mechanism of the mobile short-wave antenna shown in fig. 5 rotated to 90 degrees.

Reference is made to the accompanying drawings in which:

a mobile short wave antenna 100;

the traction mechanism 10, the tractor 11, the axle 12, the swing mechanism 20, the fixing piece 21, the rotating piece 22, the swing connecting piece 23, the speed reducer 24, the second swing leg 25, the fourth swing leg 26, the second support power element 27 and the fourth support power element 28;

support mechanism 30, first support arm 31, second support arm 32, third support arm 33, first drive element 34, second drive element 35, polarization motive 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

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 12, a mobile short-wave antenna 100 according to an embodiment of the present invention includes a traction mechanism 10, a rotation mechanism 20, a supporting mechanism 30, an extending mechanism 40, and an antenna mechanism 50; the utility model discloses a portable short wave antenna 100 realizes the horizontal rotation through rotation mechanism 20, realizes extending and goes up and down through supporting mechanism 30, adjusts the distance of antenna mechanism 50 through extending mechanism 40.

As shown in fig. 1, in the present embodiment, for the convenience of transportation, the mobile short wave 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 and provides traction for the whole vehicle to run on the road, so that the whole vehicle can run at a running speed of 80 km/h; the axle 12 is a two-axle and adopts 8 truck tires with the diameter of 1.1 m.

As shown in fig. 2, the swing mechanism 20 includes a fixed member 21 and a rotating member 22 connected to the fixed member 21; the swing mechanism 20 further comprises a swing connecting piece 23 and a speed reducer 24 arranged on the swing piece 22; the fixed part 21 and the rotating part 22 are respectively connected with a rotary connecting piece 23; the reducer 24 is engaged with the rotary connector 23 to control the rotation member 22 to rotate horizontally with respect to the fixed member 21. Optionally, the swivel connection 23 is a gear; the rotation range of the rotation member 22 with respect to the fixed member 21 is 360 degrees. Further, the tractor 11 is detachably connected to the rotation member 22. For supporting the fixing member 21, the swing mechanism 20 further 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 hinged to the four corners of the fixing member 21; the first swing leg and the third swing leg are arranged at the same end of the fixing member 21; the second swing leg 25 and the fourth swing leg 26 are disposed at the other end of the fixing member 21. During transportation, the third swing leg and the first swing leg are respectively parallel to one side of the fixing part 21, and the third swing leg is positioned on the outer side of 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, respectively, and the fourth swing leg 26 is located outside the second swing leg 25. The swing mechanism 20 further 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 respectively used for driving the first swing leg, the second swing leg 25, the third swing leg and the fourth swing leg 26 to rotate. 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 with one end of the fixing part 21, and the other end is hinged with one side of the second swing supporting leg 25; one end of the third power element is hinged with one end of the fixing part 21 far away from the first swing supporting leg, and the other end of the third power element is hinged with one side of the third swing supporting leg; the fourth powered member has one end hinged to the end of the mount 21 remote from the second swing leg 25 and the other end hinged to one side of the fourth swing leg 26. Furthermore, 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 swing mechanism 20 further includes a first supporting power member (not shown), a second supporting power member 27, a third supporting power member (not shown), and a fourth supporting power member 28; the first support power element, the second support power element 27, the third support power element and the fourth support power element 28 are respectively used for adjusting the heights 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.

Referring to fig. 3 to 10, the supporting mechanism 30 includes a first supporting arm 31, a second supporting arm 32 slidably disposed on the first supporting arm 31, and a third supporting arm 33 hinged to the second supporting arm 32; one end of the first support arm 31 is hinged with the rotating member 22; the axle 12 is detachably connected to the first support arm 31. Alternatively, the first support arm 31 is mounted on the rotation member 22 by a pin; the third support arm 33 is connected to the second support arm 32 by a pin. Further, the first support arm 31 and the second support arm 32 are coaxially disposed; in the transportation state, the axis of the third support arm 33 is perpendicular to the axes of the first support arm 31 and the second support arm 32; in the expanded state, the axis of the third support arm 33 is coaxial with the axes of the first support arm 31 and the second support arm 32. To achieve the lifting, the support mechanism 30 further comprises a first drive element 34; one end of the first driving element 34 is hinged with the rotating part 22, and the other end is hinged with the first supporting arm 31; the first driving element 34 is used for driving the first supporting arm 31 to rotate around the rotating part 22; the rotation range of the first support arm 31 is 0 to 90 degrees. Optionally, the support mechanism 30 further comprises a second drive element 35; one end of the second driving element 35 is hinged with the second supporting arm 32, and the other end is hinged with the third supporting arm 33; the second driving element 35 is used for driving the third supporting arm 33 to rotate around the second supporting arm 32; the rotation range of the third support arm 33 is 0 to 90 degrees. Further, the support mechanism 30 further comprises a polarization motive element 36; one end of the polarized power element 36 is hinged with the third supporting arm 33, and the other end is hinged with 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 support arm 33. In one embodiment, the first driving element 34, the second driving element 35, and the polarization power element 36 are all cylinders. In the process of folding to unfolding, the first support arm 31 rotates around the rotating part 22, the third support arm 33 rotates clockwise around the second support arm 32, and the two actions are coordinated to realize amplitude variation; when the support arm is fully unfolded, the third support arm 33 and the second support arm 32 are kept still, and the first support arm 31 rotates around the rotating part 22 to realize pitching.

In order to save space, the stretching mechanism 40 includes a first stretching arm 41 and a second stretching arm 42 slidably disposed on the first stretching arm 41; the extension mechanism 40 further includes a telescopic power element (not shown); the telescopic power elements are respectively connected with the first stretching arm 41 and the second stretching arm 42; the telescopic power element is used for driving the second stretching arm 42 to be arranged on the first stretching arm 41 in a sliding mode. Optionally, the telescopic power element is a rope row. In an embodiment, the stretching mechanism 40 further includes a third stretching arm 43 and a fourth stretching arm 44 slidably disposed on the third stretching arm 43; alternatively, the first stretching arm 41, the second stretching arm 42, the third stretching arm 43 and the fourth stretching arm 44 are coaxially arranged; the telescopic power elements are respectively connected with a first stretching arm 41, a second stretching arm 42, a third stretching arm 43 and a fourth stretching arm 44; the telescopic power element is used for driving the third stretching arm 42 to be slidably arranged on the second stretching arm 42, and the fourth stretching arm 44 to be slidably arranged on the third stretching arm 43.

Referring to fig. 11 and 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 with the pin holes of the first stretching arm 41 through pin shafts, and the second antenna layer 52 is connected with the pin holes of the second stretching arm 42 through pin shafts; in the transport state, the second antenna layer 52 is mounted on the first antenna layer 51, and the first antenna layer 51 is disposed in parallel with the second antenna layer 52. Optionally, the antenna mechanism 50 further includes a third antenna layer 53 connected to the third extending arm 43, and a fourth antenna layer 54 connected to the fourth extending arm 44; the third antenna layer 53 is connected with the pin hole of the third stretching arm 43 through a pin shaft, and the fourth antenna layer 54 is connected with the pin hole of the fourth stretching arm 44 through a pin shaft; in the transportation state, the third antenna layer 53 is mounted on the second antenna layer 52, the fourth antenna layer 54 is mounted 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. Further, one end of the polarization 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 ranges of the stretching mechanism 40 and the antenna mechanism 50 are 0 to 90 degrees. The distance 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 horizontal and vertical switching is achieved by rotation of the antenna mechanism 50 by the polarization motive element 36. During transportation, the second stretching arm 42, the third stretching arm 43 and the fourth stretching arm 44 are all in a contracted 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, the transportation size is effectively reduced, and the installation and maintenance are facilitated. In operation, the second stretching arm 42, the third stretching arm 43 and the fourth stretching arm 44 are all in a stretching state, so that signals can be received and transmitted conveniently. In order to realize automatic control, the mobile short-wave antenna 100 further comprises a control mechanism; the control mechanism is in signal connection with the rotation mechanism 20, the support mechanism 30, the stretching mechanism 40 and the antenna mechanism 50 respectively.

As shown in fig. 1, in the transportation state, the rotating part 22 is movably connected with the tractor 11, and the rotating part 22 and the fixed part 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 folded states; the support mechanism 30 is in a horizontal state and locked, and the antenna mechanism 50 is in a horizontal state. After the destination is reached, 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 be unfolded and fixed, and controls the first supporting power element, the second supporting power element 27, the third supporting power element and the fourth supporting power element 28 to extend, so that the rotating member 22 and the connecting pin of the towing vehicle 11 are separated from the towing vehicle 11 while the fixing member 21 is leveled, and the towing vehicle 11 travels forwards and is separated from the rotating member 22. The first support arm 31 and the connecting pin of the axle 12 are removed, and the axle 12 is retracted and detached from the first support arm 31.

Then, as shown in fig. 2, the control mechanism controls the first driving element 34 to extend, so that the first supporting arm 31 rotates and rises around the rotating member 22, and at the same time, the control mechanism controls the second driving element 35 to extend, so that the third supporting arm 33 rotates around the second supporting arm 32. The first drive element 34 and the second drive element 35 are adjusted by the control mechanism so that the antenna mechanism 50 is always kept horizontal during the raising process. During the ascending process of the antenna mechanism 50, the adjacent two layers of the first antenna layer 51, the second antenna layer 52, the third antenna layer 53 and the fourth antenna layer 54 are locked. As shown in fig. 3, after the process of raising the arm of the supporting mechanism 30 and the antenna mechanism 50 is completely finished, the supporting mechanism 30 is perpendicular to the upper plane of the rotating member 22, the antenna mechanism 50 is in a horizontal state, and the locking state is still maintained between the adjacent antenna layers. As shown in fig. 4, after the raising of the arm of the support mechanism 30 and the antenna mechanism 50 is completed, the control mechanism cancels the locking between the antenna layers and controls the locking of the antenna layers with the extending arms. Then, the control mechanism controls the second support arm 32 to move upward; after the second supporting arm 32 is extended, the control mechanism controls the operation of the telescopic power element, the telescopic power element drives the second stretching arm 42, the third stretching arm 43 and the fourth stretching arm 44 to move in a stretching manner, and due to the structural principle of the stretching arms, the ratio of the speed of the stretching movement of the second stretching arm 42, the speed of the stretching movement of the third stretching arm 43 and the speed of the stretching movement of the fourth stretching arm 44 is 1: 2: 3, at the same time, since the third supporting arm 33 is hinged to the second antenna layer 52, the distance from the second antenna layer 52 to the ground remains unchanged, and due to the operation of the telescopic power element, the first extending arm 41 moves downwards, the third extending arm 43 and the fourth extending arm 44 move upwards, and at the same time, the second extending arm 42, the third extending arm 43 and the fourth extending arm 44 bring the second antenna layer 52, the third antenna layer 53 and the fourth antenna layer 54 into extending motion.

As shown in fig. 5, after the control mechanism controls the telescopic power element to be fully extended; as shown in fig. 6 to 8, the control mechanism controls the movable mechanism in each antenna layer to expand the four-layer array, and at this time, the signal transmission is performed to realize remote communication, and meanwhile, the rotating member 22 can rotate around the fixed member 21 within a range of 360 degrees, and can be accurately positioned to a place needing communication. After the array of each antenna layer is completely unfolded, the control mechanism controls the polarization power element 36 to extend, and the extending mechanism 40 and the antenna mechanism 50 will rotate integrally around the third supporting arm 33, as shown in fig. 9 and 10, which is the state when the polarization of the antenna mechanism 50 is changed by 45 degrees; as polarization power element 36 continues to elongate, extension mechanism 40 and antenna mechanism 50 continue to rotate until polarization power element 36 completes elongation, as shown in fig. 11 and 12; at this time, the antenna mechanism 50 is in a vertical polarization state, and performs signal transmission to realize short-distance communication, and at the same time, the rotating member 22 can rotate around the fixing member 21 within a range of 360 degrees, and can be accurately positioned to a place where communication is required. The folding process of the mobile short-wave antenna 100 is the reverse of the unfolding process, and will not be described in detail.

It should be noted that the structure proposed by the mobile short-wave antenna 100 is analyzed and verified by an ADAMS mechanism simulation and a pro mechanism analysis module, and therefore, the operation is only required to be performed according to the operation rules during the movement process.

The utility model discloses a portable short wave antenna 100 slides through second support arm 32 and locates first support arm 31 and realize extending, articulates through first support arm 31 and rotates 22 and the articulated second support arm 32 of third support arm 33 and realize going up and down, expandes the back and articulates through first support arm 31 and rotates 22 and realize the every single move, slides through second extending arm 42 and locates first extending arm 41 and adjust the distance on second antenna layer 52 and first antenna layer 51. The mobile short wave antenna 100 is simple in structure, foldable, extensible, and convenient to install and maintain.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A mobile short wave antenna is characterized by comprising a slewing mechanism, a supporting mechanism, a stretching mechanism and an antenna mechanism; the slewing mechanism comprises a fixed part and a rotating part connected with the fixed part; the supporting mechanism comprises a first supporting arm, a second supporting arm arranged on the first supporting arm in a sliding mode and a third supporting arm hinged to the second supporting arm; one end of the first supporting arm is hinged with the rotating piece; the stretching mechanism comprises a first stretching arm and a second stretching arm arranged on the first stretching arm in a sliding manner; the antenna mechanism comprises a first antenna layer connected with the first extension arm and a second antenna layer connected with the second extension arm.

2. The mobile short wave antenna of claim 1, wherein the support mechanism further comprises a polarization motive element; one end of the polarized power element is hinged with the third supporting arm, and the other end of the polarized power element is hinged with the second antenna layer; and the polarized power element is used for driving the extension mechanism and the antenna mechanism to rotate around the third supporting arm.

3. The mobile short wave antenna of claim 1, wherein the support mechanism further comprises a first drive element; one end of the first driving element is hinged with the rotating piece, and the other end of the first driving element is hinged with the first supporting arm; the first driving element is used for driving the first supporting arm to rotate around the rotating part.

4. The mobile short wave antenna of claim 1, wherein the support mechanism further comprises a second drive element; one end of the second driving element is hinged with the second supporting arm, and the other end of the second driving element is hinged with the third supporting arm; the second driving element is used for driving the third supporting arm to rotate around the second supporting arm.

5. The mobile short wave antenna of claim 1, wherein the swivel mechanism further comprises a first swing leg, a second swing leg, a third swing leg and a fourth swing leg hinged to four corners of the fixing member, respectively; the first swing supporting leg and the third swing supporting leg are arranged at the same end of the fixing piece; the second swing supporting leg and the fourth swing supporting leg are arranged at the other end of the fixing piece.

6. The mobile short wave antenna of claim 5, wherein the slewing mechanism further comprises 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 for driving the first swing supporting leg, the second swing supporting leg, the third swing supporting leg and the fourth swing supporting leg to rotate.

7. The mobile short wave antenna of claim 1, wherein the extension mechanism further comprises a telescoping power element; the telescopic power element is respectively connected with the first stretching arm and the second stretching arm; the telescopic power element is used for driving the second stretching arm to be slidably arranged on the first stretching arm.

8. The mobile short-wave antenna according to claim 1, wherein the slewing mechanism further comprises a slewing connection and a speed reducer disposed on the slewing element; the fixed piece and the rotating piece are respectively connected with the rotary connecting piece; the speed reducer is meshed with the rotary connecting piece.

9. The mobile short wave antenna of claim 1, further comprising a pulling mechanism; the traction mechanism comprises a tractor and an axle; the tractor is detachably connected with the rotating part; the axle is detachably connected with the first supporting arm.

10. The mobile short wave antenna of claim 1, further comprising a control mechanism; the control mechanism is respectively in signal connection with the slewing mechanism, the supporting mechanism, the stretching mechanism and the antenna mechanism.

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