Folding device for shortwave antenna dipole layer

Abstract

The present invention relates to a folding device for a shortwave antenna oscillator layer, comprising: two first truss beams; two second truss beams; a supporting beam, arranged between the two second truss beams; a first telescopic mechanism, comprising a first driver arranged on the supporting beam and a first telescopic rod connected to the first driver; a first connecting rod mechanism, comprising two first connecting rods, two first linkage rods and two first movable rods, one end of the two first connecting rods being hinged to the first telescopic rod; the middle of the first connecting rod is respectively hinged to the second truss beam; one end of the first linkage rod is respectively hinged to the other end of the first connecting rod, and the other end of the first linkage rod is respectively hinged to the first truss beam. When the antenna oscillator layer needs to be used, the first connecting rod mechanism, under the drive of the first telescopic mechanism, drives the first truss beam and the second truss beam away from the supporting beam, so that the folding device of the shortwave antenna oscillator layer can be unfolded, effectively reducing costs and having high installation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of communication equipment, and in particular to a folding device for a shortwave antenna oscillator layer. Background Art

[0002] At present, large shortwave antennas used in the field of long-distance communication are basically composed of multiple layers of oscillators supported by truss beams and supporting iron towers. Each layer of oscillators is arranged according to a certain pattern, with a wide frequency band and large available power, which can provide ultra-long-distance communication functions.

[0003] However, traditional antennas are large in size and have many accessories. Large scaffolding needs to be built during installation, and then dismantled after installation, which greatly increases the cost and takes a long time to install. Later maintenance is also inconvenient. The antenna is high, and installation and maintenance require professional high-altitude workers, which is also very dangerous. Summary of the invention

[0004] Based on this, it is necessary to provide a folding device for the oscillator layer of a shortwave antenna to address the current traditional technical problems.

[0005] A folding device for a shortwave antenna dipole layer, comprising:

[0006] two first truss beams;

[0007] Two second truss beams, arranged between the two first truss beams;

[0008] A supporting beam disposed between two of the second truss beams;

[0009] A first telescopic mechanism comprises a first driver arranged on the supporting beam and a first telescopic rod connected to the first driver;

[0010] The first connecting rod mechanism includes two first connecting rods, two first linkage rods and two first movable rods, one end of the two first connecting rods is hinged to the first telescopic rod; the middle part of the first connecting rod is hinged to the second truss beam respectively; one end of the first linkage rod is hinged to the other end of the first connecting rod respectively, and the other end of the first linkage rod is hinged to the first truss beam respectively; one end of the first movable rod is hinged to the second truss beam respectively, and the other end of the first movable rod is hinged to the first linkage rod respectively.

[0011] The folding device of the shortwave antenna element layer mentioned above, when the antenna element layer needs to be used, the first link mechanism, under the drive of the first telescopic mechanism, drives the first truss beam and the second truss beam away from the supporting beam, so that the folding device of the shortwave antenna element layer can be unfolded, and the work of automatically unfolding the antenna element layer can be realized, without the need to build a large scaffolding, effectively reducing costs, with high installation efficiency, effectively shortening the installation period, and the operator does not need to install the antenna element layer at high altitude, which is conducive to reducing safety hazards; when the antenna element layer needs to be repaired or not in use, the telescopic drive mechanism drives the first link mechanism to retract, thereby driving the first truss beam and the second truss beam to approach the supporting beam, that is, the folding device of the shortwave antenna element layer is folded, so that the antenna element layer is folded, which is convenient for maintenance and transportation.

[0012] In one of the embodiments, it also includes a second telescopic mechanism and a second connecting rod mechanism, the second telescopic mechanism includes a second driver arranged on the supporting beam and a second telescopic rod connected to the second driver; the second connecting rod mechanism and the first connecting rod mechanism are arranged relatively spaced apart; the second connecting rod mechanism includes two second connecting rods and two second linkage rods, one end of the two second connecting rods is hinged to the second telescopic rod, and the middle part of the second connecting rod is respectively hinged to the second truss beam; one end of the second linkage rod is respectively hinged to the other end of the second connecting rod, and the other end of the second linkage rod is respectively hinged to the first truss beam.

[0013] In one embodiment, the first link mechanism and the second link mechanism are arranged on the same side of the folding device of the shortwave antenna element layer.

[0014] In one embodiment, the direction in which the first driver drives the first telescopic rod to extend is opposite to the direction in which the second driver drives the second telescopic rod to extend, and the direction in which the first driver drives the first telescopic rod to shorten is opposite to the direction in which the second driver drives the second telescopic rod to shorten.

[0015] In one embodiment, the second link mechanism further includes two second movable rods, one end of the two second movable rods is hinged to an end of the supporting beam away from the first link mechanism, and the other end of the second movable rods is hinged to the second link respectively.

[0016] In one embodiment, the hinge point between the second movable rod and the supporting beam is arranged on the side of the hinge point between the second connecting rod and the supporting beam facing away from the first connecting rod mechanism, and the second movable rod is hinged to one end of the second connecting rod close to the second telescopic rod.

[0017] In one of the embodiments, when the folding device of the shortwave antenna sublayer is fully unfolded, the folding device of the shortwave antenna sublayer is arranged in a fan shape.

[0018] In one of the embodiments, when the folding device of the shortwave antenna sublayer is in a fully folded state, the two first truss beams are parallel to each other, the first truss beam is parallel to the second truss beam, and the two second truss beams are parallel to each other.

[0019] In one of the embodiments, a first mounting seat is disposed on the supporting crossbeam, and one end of the first driver away from the first telescopic rod is hinged to the first mounting seat.

[0020] In one embodiment, the hinge point between the first movable rod and the second truss beam is arranged on the side of the hinge point between the first connecting rod and the second truss beam facing the second connecting rod mechanism, and the first movable rod is hinged to the first linkage rod at one end close to the first connecting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the folding device of the short-wave antenna element layer of the first embodiment of the present invention when it is in an unfolded state;

[0022] Figure 2 for Figure 1 A schematic structural diagram of a shortwave antenna oscillator layer when the folding device is in a folded state;

[0023] Figure 3 for Figure 1 A schematic structural diagram of a supporting beam, a first telescopic mechanism and a second telescopic mechanism of a folding device of a shortwave antenna element layer;

[0024] Figure 4 for Figure 1 A schematic structural diagram of a first link mechanism of a folding device for a shortwave antenna element layer;

[0025] Figure 5 for Figure 1 A schematic structural diagram of a second link mechanism of a folding device for a shortwave antenna element layer;

[0026] Figure 6 It is a schematic structural diagram of the folding device of the shortwave antenna element layer of the second embodiment of the present invention when it is in the unfolded state.

[0027] The meanings of the symbols in the accompanying drawings are:

[0028] First end 100, second end 200, first truss beam 10, second truss beam 20, supporting beam 30, supporting leg 31, mounting hole 32, first mounting seat 33, first slide rail 34, first slider 35, second mounting seat 36, second slide rail 37, second slider 38, first telescopic mechanism 40, first driver 41, first telescopic rod 42, first connecting rod mechanism 50, first connecting rod 51, first linkage rod 52, first movable rod 53, second telescopic mechanism 60, second driver 61, second telescopic rod 62, second connecting rod mechanism 70, second connecting rod 71, second linkage rod 72, second movable rod 73. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] It should be noted that when an element is referred to as being "fixed to" the other end element, it may be directly on the other end element or there may also be a central element. When an element is considered to be "connected to" the other end element, it may be directly connected to the other end element or there may be a central element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Please refer to Figures 1 to 6, is a folding device of the shortwave antenna element layer of the first embodiment of the present invention, which is used to install the antenna element layer; the folding device of the shortwave antenna element layer has a first end 100 and a second end 200 arranged opposite to each other. The folding device of the shortwave antenna element layer includes two first truss beams 10, two second truss beams 20, a supporting beam 30, a first telescopic mechanism 40, and a first connecting rod mechanism 50. The two first truss beams 10 are arranged at relative intervals. The two second truss beams 20 are arranged at relative intervals and arranged between the two first truss beams 10, and the two first truss beams 10 and the two second truss beams 20 are both used for connecting the antenna element layer. The supporting beam 30 is arranged between the two second truss beams 20, and the supporting beam 30 is used to fix and connect an external bracket. The first telescopic mechanism 40 includes a first driver 41 arranged on the supporting beam 30 and a first telescopic rod 42 connected to the first driver 41, and the first driver 41 is used to drive the first telescopic rod 42 to perform telescopic movement. Please refer to Figure 1 and Figure 4 The first link mechanism 50 includes two first links 51, two first linkage rods 52 and two first movable rods 53. One end of the two first links 51 is hinged to the first telescopic rod 42; the middle part of the first link 51 is hinged to the second truss beam 20; one end of the first linkage rod 52 is hinged to the other end of the first link rod 51, and the other end of the first linkage rod 52 is hinged to the first truss beam 10; one end of the first movable rod 53 is hinged to the second truss beam 20, and the other end of the first movable rod 53 is hinged to the first linkage rod 51.

[0033] Please refer to Figure 1 When the folding device of the shortwave antenna oscillator layer is in the unfolded state and needs to be folded, the first driver 41 drives the first telescopic rod 42 to shorten in the first direction. Since one end of the first connecting rod 51 is hinged to the first telescopic rod 42, when the first telescopic rod 42 shortens in the first direction, the hinge point between the first connecting rod 51 and the telescopic driving mechanism 40 is also driven to move in the first direction, thereby driving the first connecting rod 51 to approach the supporting beam 30; when the first connecting rod 51 approaches the supporting beam 30, the hinge point between the first connecting rod 51 and the second truss beam 20 is driven to approach the supporting beam 30, that is, the second truss beam 20 is driven to approach the supporting beam 30; when the second When the truss beam 20 approaches the supporting beam 30, it drives the hinge point between the first movable rod 53 and the second truss beam 20 to approach the supporting beam 30; since one end of the first linkage rod 52 is hinged to the other end of the first connecting rod 51, the other end of the first linkage rod 52 is hinged to the first truss beam 10, and the other end of the first movable rod 53 is hinged to the first linkage rod 52, when the hinge point between the first connecting rod 51 and the second truss beam 20 and the hinge point between the first movable rod 53 and the second truss beam 20 approach the supporting beam 30, the first truss beam 10 is driven to approach the supporting beam 30, so that the folding device of the shortwave antenna oscillator layer is folded.

[0034] Please refer to Figure 2 Similarly, when the folding device of the shortwave antenna sublayer is in a folded state and needs to be unfolded, the first driver 41 drives the first telescopic rod 42 to extend in a second direction, and the second direction is opposite to the first direction. When the first telescopic rod 42 extends in the second direction, the hinge point between the first connecting rod 51 and the first telescopic rod 42 is also driven to move in the second direction, thereby driving the hinge point between the first connecting rod 51 and the second truss beam 20 away from the supporting beam 30, and then through the mutual cooperation between the first connecting rod 51, the first linkage rod 52 and the first movable rod 53, the second truss beam 20 and the first truss beam 10 are driven away, so that the folding device of the shortwave antenna sublayer can be unfolded.

[0035] The folding device of the shortwave antenna vibrator layer described above, when the antenna vibrator layer needs to be used, the first link mechanism 50, under the drive of the first telescopic mechanism 40, drives the first truss beam 10 and the second truss beam 20 away from the supporting beam 30, so that the folding device of the shortwave antenna vibrator layer is unfolded, and the work of automatically unfolding the antenna vibrator layer is realized, and there is no need to build a large scaffolding, which effectively reduces the cost, has high installation efficiency, and effectively shortens the installation period. In addition, the operator does not need to install the antenna vibrator layer at high altitude, which is conducive to reducing safety hazards; when the antenna vibrator layer needs to be repaired or not used, the telescopic drive mechanism 40 drives the first link mechanism 50 to retract, and then drives the first truss beam 10 and the second truss beam 20 to approach the supporting beam 30, that is, the folding device of the shortwave antenna vibrator layer is folded, so that the antenna vibrator layer is folded, which is convenient for maintenance and transportation. By setting the first movable rod 53, the stability of the folding device of the shortwave antenna vibrator layer in unfolding and folding is effectively improved.

[0036] Please refer to Figure 3 In some embodiments, the support crossbeam 30 is connected with a support leg 31, and the support leg 31 is used to directly connect to an external bracket, that is, the support crossbeam 30 is connected to the external bracket through the support leg 31. In some embodiments, the support leg 31 is provided with a mounting hole 32, and the mounting hole 32 is used to be screwed to the external bracket. The support leg 31 and the support crossbeam 30 are respectively arranged on opposite sides of the folding device of the short-wave antenna oscillator layer, which can effectively prevent the first link mechanism 50 from rotating along the circumferential direction of the support crossbeam 30, effectively ensure the stability of the movement of the first link mechanism 50, and further ensure the stability of the movement of the first truss beam 10 and the second truss beam 20.

[0037] In some embodiments, a first mounting seat 33 is disposed on the supporting beam 30 , and one end of the first driver 41 away from the first telescopic rod 42 is hinged to the first mounting seat 33 .

[0038] In some embodiments, the first telescopic rod 42 and the two first connecting rods 51 are hinged and slidably disposed on the support beam 30, so that when the first driver 41 drives the first telescopic rod 42 to perform telescopic movement, the hinge point between the first telescopic rod 42 and the two first connecting rods 51 performs linear reciprocating motion along the support beam 30, effectively preventing the first telescopic rod 42 from offsetting or deflecting during the telescopic process, and effectively ensuring the stability of the movement of the first telescopic rod 42. Specifically, a first slide rail 34 is disposed on the support beam 30, a first slider 35 is slidably disposed on the first slide rail 35, and the first slider 35 is hingedly connected to the hinge point between the first telescopic rod 42 and the two first connecting rods 51.

[0039] Please refer to Figure 1 and Figure 2 In some embodiments, the folding device of the shortwave antenna oscillator layer further includes a second telescopic mechanism 60 and a second connecting rod mechanism 70, and the second telescopic mechanism 60 is spaced relatively from the first telescopic mechanism 40. Please refer to Figure 1 and Figure 3 Specifically, the second telescopic mechanism 60 includes a second driver 61 disposed on the supporting crossbeam 30 and a second telescopic rod 62 connected to the second driver 61, and the second driver 61 is used to drive the second telescopic rod 62 to perform telescopic movement; it should be noted that the direction in which the second driver 61 drives the second telescopic rod 62 to extend is opposite to the direction in which the first driver 41 drives the first telescopic rod 42 to extend, and the direction in which the second driver 61 drives the second telescopic rod 62 to shorten is opposite to the direction in which the first driver 41 shortens the first telescopic rod 42. Further, the second driver 61 and the first driver 41 are disposed close to each other, and the second telescopic rod 62 and the first telescopic rod 42 are disposed away from each other. In this embodiment, the first telescopic mechanism 40 and the second telescopic mechanism 60 are both oil cylinders, liquid cylinders or gas cylinders, and the first telescopic rod 42 and the second telescopic rod 62 are both piston rods.

[0040] The first link mechanism 50 is disposed on the first end 100 of the folding device of the shortwave antenna element layer, and the second link mechanism 70 is disposed on the second end 200 of the folding device of the shortwave antenna element layer. The first link mechanism 50 and the second link mechanism 70 are disposed on the same side of the folding device of the shortwave antenna element layer. Figure 1 and Figure 5 Specifically, the second link mechanism 70 includes two second links 71 and two second linkage rods 72. One end of the two second links 71 is hinged to the second telescopic rod 62. The middle of the second links 71 is hinged to the second truss beam 20. One end of the second linkage rod 72 is hinged to the other end of the second link 71, and the other end of the second linkage rod 72 is hinged to the first truss beam 10.

[0041] The second link mechanism 70 further includes two second movable rods 73 , one end of the two second movable rods 73 is hinged to one end of the support beam 30 away from the first link mechanism 50 , and the other end of the second movable rod 73 is hinged to the second link 71 respectively.

[0042] When the folding device of the shortwave antenna oscillator layer is folded and unfolded, the second telescopic mechanism 60 and the first telescopic mechanism 40 work synchronously, that is, during the folding process, the second driver 61 drives the second telescopic rod 62 to move and shorten in the second direction, driving the hinge point between the second connecting rod 71 and the second truss beam 20 to approach the supporting beam 30, and then driving the second truss beam 20 to approach the supporting beam 30; because the second movable rod 73 is hinged to the second connecting rod 71, the second connecting rod 71 drives the second movable rod 73 to approach the supporting beam 30; because one end of the second linkage rod 72 is respectively hinged to the other end of the second connecting rod 71, and the other end of the second linkage rod 72 is respectively hinged to the first truss beam 10, when the hinge point between the second connecting rod 71 and the second truss beam 20 approaches the supporting beam 30, the first truss beam 10 is driven to approach the supporting beam 30 through the second linkage rod 72. Similarly, during the unfolding process, the second driver 61 drives the second telescopic rod 62 to extend in the first direction, and then drives the first truss beam 10 and the second truss beam 20 away from the supporting beam 30 through the mutual cooperation between the second connecting rod 71, the second linkage rod 72 and the second movable rod 73.

[0043] When the folding device of the shortwave antenna element layer is folded and unfolded, the second link mechanism 70 cooperates with the first link mechanism 60 to further prevent the first truss beam 10 and the second truss beam 20 from deflecting, effectively ensuring that the unfolding and folding of the first truss beam 10 and the second truss beam 20 can be carried out stably.

[0044] In this embodiment, the hinge point between the first movable rod 53 and the second truss beam 20 is arranged on the side of the hinge point between the first connecting rod 51 and the second truss beam 20 facing the second connecting rod mechanism 70, and the first movable rod 53 is hinged to one end of the first linkage rod 52 close to the first connecting rod 51. The hinge point between the second movable rod 73 and the supporting beam 30 is arranged on the side of the hinge point between the second connecting rod 71 and the supporting beam 30 facing away from the first connecting rod mechanism 50, and the second movable rod 73 is hinged to one end of the second connecting rod 71 close to the second telescopic rod 62.

[0045] It should be noted that when the folding device of the shortwave antenna element layer is in a fully folded state, the two first truss beams 10 are parallel to each other, the first truss beam 10 is parallel to the second truss beam 20, and the two second truss beams 20 are parallel to each other. Specifically, the lengths of the two first truss beams 10 are equal, the lengths of the two second truss beams 20 are equal, and the length of the first truss beam 10 is equal to the length of the second truss beam 20. When the folding device of the shortwave antenna element layer is in a fully folded state, at the first end 100 of the folding device of the shortwave antenna element layer, the first truss beam 10 extends out of the second truss beam 20; at the second end 200 of the folding device of the shortwave antenna element layer, the second truss beam 20 extends out of the first truss beam 10.

[0046] When the folding device of the shortwave antenna sublayer is fully unfolded, the folding device of the shortwave antenna sublayer is arranged in a fan shape, which is consistent with the shape of the antenna sublayer after unfolding. Further, when the folding device of the shortwave antenna sublayer is in a fully unfolded state, the angle between the first truss beam 10 and the adjacent second truss beam 20 is 0°-15°, and the angle between the two second truss beams 20 is 0°-15°. Further, when the folding device of the shortwave antenna sublayer is in a fully unfolded state, the angle between the first truss beam 10 and the adjacent second truss beam 20 is 7.07°, and the angle between the two second truss beams 20 is 7.07°.

[0047] Please refer to Figure 1 In this embodiment, the length of the first link 51 is greater than the length of the first linkage rod 52, the length of the second link 71 is greater than the length of the second linkage rod 82, the length of the first link 51 is less than the length of the second link 71, and the length of the first linkage rod 52 is less than the length of the second linkage rod 82. Therefore, when the folding device of the shortwave antenna element layer is fully unfolded, the length of the first linkage mechanism 50 is less than the length of the second linkage mechanism 70, so that the folding device of the shortwave antenna element layer is arranged in a fan shape.

[0048] In some embodiments, a second mounting seat 36 is disposed on the supporting beam 30 , and one end of the second driver 61 away from the second telescopic rod 62 is hinged to the second mounting seat 36 .

[0049] In some embodiments, the hinge point between the second telescopic rod 62 and the two second connecting rods 71 ​​is slidably disposed on the support beam 30, so that when the second driver 61 drives the second telescopic rod 62 to perform telescopic movement, the hinge point between the second telescopic rod 62 and the two second connecting rods 71 ​​performs linear reciprocating motion along the support beam 30, effectively preventing the second telescopic rod 62 from offsetting or deflecting during the telescopic process, and effectively ensuring the stability of the movement of the first telescopic rod 42. Specifically, a second slide rail 37 is disposed on the support beam 30, and a second slider 38 is slidably disposed on the second slide rail 37, and the hinge point between the second telescopic rod 62 and the two second connecting rods 71 ​​is hinged to the second slider 38.

[0050] The folding process of the folding device of the shortwave antenna dipole layer is as follows:

[0051] like Figure 1 When the folding device of the shortwave antenna element layer is in a fully unfolded state, the first telescopic mechanism 40 and the second telescopic mechanism 60 work simultaneously; specifically, the first driver 41 drives the first telescopic rod 42 to retract to the right, and the second driver 61 drives the second telescopic rod 62 to retract to the left; since one end of the first connecting rod 51 is hinged to the first telescopic rod 42, when the first telescopic rod 42 retracts to the right, the hinge point between the first connecting rod 51 and the telescopic driving mechanism 40 moves to the right; since one end of the second connecting rod 71 is hinged to the second telescopic rod 62, when the second telescopic rod 62 retracts to the left, the hinge point between the second connecting rod 71 and the second telescopic rod 62 moves to the left.

[0052] Only looking at the first connecting rod 51, the second truss beam 20, the second connecting rod 71 and the second movable rod 73, the second connecting rod 71, the second movable rod 73 and the supporting beam 30 form a triangular structure. When the second telescopic rod 62 is extended to any position, due to the stable structure of the triangle, the second connecting rod 71 has a determined and unique position. Therefore, in the first four-link structure composed of the first connecting rod 51, the second truss beam 20, the second connecting rod 71 and the supporting beam 30, the positions of the supporting beam 30 and the second connecting rod 71 in any motion state are determined and unique, thereby making the positions of the first connecting rod 51 and the second truss beam 20 in any motion state determined and unique.

[0053] Similarly, in the second four-bar structure composed of the first link 51, the first linkage rod 52, the second movable rod 53 and the second truss beam 20, since the positions of the first link 51 and the second truss beam 20 in any motion state are determined and unique, the positions of the first linkage rod 52 and the second movable rod 53 in any motion state are determined and unique, that is, the hinge point between the first linkage rod 52 and the first truss beam 10 is determined and unique in any motion state, the hinge point between the second linkage rod 72 and the second link 71 is determined and unique, and at the same time, the second linkage rod 72 is hinged to the first truss beam 10. Under the condition that the length of the second linkage rod 72 remains unchanged, the hinge point between the second linkage rod 72 and the first truss beam 10 is determined and unique, that is, when the first telescopic rod 42 and the second telescopic rod 62 are telescoped to any position, the motion trajectory of any movable component in the folding device of the shortwave antenna oscillator layer is determined and unique.

[0054] Since the first connecting rod 51 is hinged to the second truss beam 20, and the second connecting rod 71 is hinged to the second truss beam 20, when the hinge point between the first connecting rod 51 and the telescopic drive mechanism 40 moves to the right and the hinge point between the second connecting rod 71 and the second telescopic rod 62 moves to the left, the first connecting rod 51 and the second connecting rod 71 will be driven to move accordingly, thereby driving the second truss beam 20 to fold inward.

[0055] Since the first linkage rod 52 is hinged to the first linkage rod 51, and the second movable rod 53 is hinged to the first linkage rod 52 and the second truss beam 20, as the second truss beam 20 folds inward, the obtuse angle between the second truss beam 20 and the first linkage rod 51 becomes larger and larger, so that the first linkage rod 52 moves toward the direction close to the supporting beam 30 under the pulling force of the second movable rod 53; at the same time, the second linkage rod 72 is hinged to the second linkage rod 71, and when the hinge point between the second linkage rod 71 and the second telescopic rod 62 moves to the left, it will drive the second linkage rod 71 to rotate around the hinge point between the second linkage rod 71 and the second telescopic rod 62, and then drive the second linkage rod 72 to rotate around the hinge point between the second linkage rod 72 and the second linkage rod 71. The first linkage rod 52 moves toward the direction close to the supporting beam 30 and the second linkage rod 72 rotates counterclockwise to drive the movement toward the direction close to the supporting beam 30, that is, drive the first truss beam 10 to fold inward.

[0056] When the first driver 41 drives the first telescopic rod 42 to retract to the right, and the second driver 61 drives the second telescopic rod 62 to retract to the left to the design value, the folding device of the antenna element layer is in a completely folded state. At this time, the two first truss beams 10 and the two second truss beams 20 are in a horizontal state, that is, the two first truss beams 10 are parallel to each other, the two second truss beams 20 are parallel to each other, and the first truss beam 10 and the second truss beam 20 are parallel to each other. Figure 2 .

[0057] The unfolding process of the folding device of the antenna element layer is opposite to the folding process of the folding device of the antenna element layer; that is, when the folding device of the antenna element layer is in a fully unfolded state, such as Figure 2 , the first driver 41 drives the first telescopic rod 42 to extend to the left, and the second driver 61 drives the second telescopic rod 62 to extend to the right. When the first telescopic rod 42 extends to the left, it drives the hinge point between the first connecting rod 51 and the first telescopic rod 42 to move to the left. When the second telescopic rod 62 extends to the right, it drives the hinge point between the second connecting rod 71 and the second telescopic rod 62 to move to the right, thereby driving the first linkage rod 52, the first movable rod 53, the second linkage rod 72 and the second movable rod 73 to move accordingly, so that the first truss beam 10 and the second truss beam 20 are away from the supporting crossbeam 30, and then the folding device of the antenna element layer is gradually unfolded. When the first driver 41 drives the first telescopic rod 42 to extend to the left to the longest length, and the second driver 61 drives the second telescopic rod 62 to extend to the right to the longest length, the folding device of the shortwave antenna element layer is fully unfolded. At this time, the angle between the first truss beam 10 and the adjacent second truss beam 20 is 7.07°, and the angle between the two second truss beams 20 is 7.07°. Figure 1 .

[0058] It should be noted that, after calculating the freedom of the mechanism movement, the folding device of the shortwave antenna oscillator layer of the present invention has an overall freedom of 2. Therefore, under the drive of the first telescopic mechanism 40 and the second telescopic mechanism 60, it is a certain movement. The first telescopic mechanism 40 and the second telescopic mechanism 60 do not need to set speed matching during the movement, and only need to extend or retract the design value according to the design value. At the same time, it should be noted that by modifying the length and position of the hinge point of the first connecting rod 51, the first linkage rod 52, the first movable rod 53, the second connecting rod 71, the second linkage rod 72 and the second movable rod 73, the angles between the two second truss beams 20 after unfolding and between the first truss beam 10 and the adjacent second truss beam 20 can be equal and arbitrary values. After folding, the spacing between the two first truss beams 10, the two second truss beams 20, and the first truss beam 10 and the adjacent second truss beam 20 are equal and the four layers are kept horizontal. At the same time, the folding device of the shortwave antenna oscillator layer of the present invention is not limited to the field of communication equipment, but can also be used for structures with similar needs in other industries.

[0059] Please refer to Figure 6, is a folding device for a shortwave antenna element layer of a second embodiment of the present invention, comprising two first truss beams 10, two second truss beams 20, a supporting beam 30, a first telescopic mechanism 40, a first link mechanism 50, a second telescopic mechanism 60 and a second link mechanism 70. The first link mechanism 50 comprises two first links 51, two first linkage rods 52 and two first movable rods 53; the second link mechanism 70 comprises two second links 71, two second linkage rods 72 and two second movable rods 73. The folding device for a shortwave antenna element layer of this embodiment is different from the folding device for a shortwave antenna element layer of the first embodiment in that the length of the first link 51 is greater than the length of the first linkage rod 52, the length of the second link 71 is greater than the length of the second linkage rod 82, the length of the first link 51 is greater than the length of the second link 71, and the length of the first linkage rod 52 is greater than the length of the second linkage rod 82.

[0060] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above 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.

[0061] The above 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 those of ordinary skill in the art, 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 folding device for a shortwave antenna dipole layer, characterized in that: include: two first truss beams; Two second truss beams, arranged between the two first truss beams; A supporting beam disposed between two of the second truss beams; A first telescopic mechanism comprises a first driver arranged on the supporting beam and a first telescopic rod connected to the first driver; The first link mechanism comprises two first links, two first linkage rods and two first movable rods, one end of the two first links is hinged to the first telescopic rod; the middle of the first link is hinged to the second truss beam respectively; one end of the first linkage rod is hinged to the other end of the first link, and the other end of the first linkage rod is hinged to the first truss beam respectively; one end of the first movable rod is hinged to the second truss beam respectively, and the other end of the first movable rod is hinged to the first linkage rod respectively; as well as A second telescopic mechanism and a second connecting rod mechanism, wherein the second telescopic mechanism comprises a second driver arranged on the supporting crossbeam and a second telescopic rod connected to the second driver; the second connecting rod mechanism is arranged relatively spaced apart from the first connecting rod mechanism; the second connecting rod mechanism comprises two second connecting rods and two second linkage rods, one end of the two second connecting rods is hinged to the second telescopic rod, and the middle part of the second connecting rod is respectively hinged to the second truss beam; one end of the second linkage rod is respectively hinged to the other end of the second connecting rod, and the other end of the second linkage rod is respectively hinged to the first truss beam; The second link mechanism further comprises two second movable rods, one end of the two second movable rods is hinged to one end of the supporting beam away from the first link mechanism, and the other end of the second movable rods is hinged to the second link respectively; The length of the first connecting rod is greater than the length of the first linkage rod, the length of the second connecting rod is greater than the length of the second linkage rod, the length of the first connecting rod is less than the length of the second linkage rod, and the length of the first linkage rod is less than the length of the second linkage rod. When the folding device of the shortwave antenna sublayer is in a fully unfolded state, the angle between the first truss beam and the adjacent second truss beam is 0°-15°, and the angle between the two second truss beams is 0°-15°.

2. The folding device of the shortwave antenna element layer according to claim 1 is characterized in that: The first link mechanism and the second link mechanism are arranged on the same side of the folding device of the shortwave antenna element layer.

3. The folding device of the shortwave antenna element layer according to claim 1, characterized in that: The direction in which the first driver drives the first telescopic rod to extend is opposite to the direction in which the second driver drives the second telescopic rod to extend, and the direction in which the first driver drives the first telescopic rod to shorten is opposite to the direction in which the second driver drives the second telescopic rod to shorten.

4. The folding device for the shortwave antenna element layer according to claim 1, characterized in that: The hinge point between the second movable rod and the supporting beam is arranged on the side of the hinge point between the second connecting rod and the supporting beam facing away from the first connecting rod mechanism, and the second movable rod is hinged to one end of the second connecting rod close to the second telescopic rod.

5. The folding device of the shortwave antenna element layer according to claim 1, characterized in that: When the folding device of the shortwave antenna element layer is fully unfolded, the folding device of the shortwave antenna element layer is arranged in a fan shape.

6. The folding device of the shortwave antenna element layer according to claim 1, characterized in that: When the folding device of the shortwave antenna element layer is in a completely folded state, the two first truss beams are parallel to each other, the first truss beam is parallel to the second truss beam, and the two second truss beams are parallel to each other.

7. The folding device of the shortwave antenna element layer according to claim 1, characterized in that: A first mounting seat is arranged on the supporting crossbeam, and one end of the first driver away from the first telescopic rod is hinged to the first mounting seat.

8. The folding device of the shortwave antenna element layer according to claim 1, characterized in that: The hinge point between the first movable rod and the second truss beam is arranged on the side of the hinge point between the first connecting rod and the second truss beam facing the second connecting rod mechanism, and the first movable rod is hinged to one end of the first linkage rod close to the first connecting rod.

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