Folding device for shortwave antenna array layer

Abstract

The present invention relates to a folding device for a shortwave antenna array layer, comprising: two first truss beams, one ends of the two first truss beams are hinged; two second truss beams are arranged between the two first truss beams, one ends of the two second truss beams are hinged; a supporting crossbeam is arranged between the two second truss beams; a first telescopic mechanism is arranged on the supporting crossbeam; a first connecting rod mechanism comprises two first connecting rods and two first linkage rods, one ends of the two first connecting rods are hinged to the first telescopic mechanism; the middle part 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. The above-mentioned folding device for the shortwave antenna array layer enables the shortwave antenna to be in an unfolded state when in working state, and in a folded state when the antenna is not in working state or in a transporting state, which can effectively reduce the transport size and facilitate vehicle transport and storage.

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 array 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 is required for installation, which needs to be dismantled after installation. This greatly increases the cost and takes a long time to install. Later maintenance is also inconvenient, and it is not easy to transport and store them by vehicle. Summary of the invention

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

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

[0006] Two first truss beams, one ends of the two first truss beams are hinged;

[0007] Two second truss beams are arranged between the two first truss beams, one ends of the two second truss beams are hinged, and the hinge point between the two second truss beams and the hinge point between the two first truss beams are both located at the same end of the folding device of the shortwave antenna array layer;

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

[0009] A first telescopic mechanism is arranged on the supporting beam;

[0010] The first connecting rod mechanism includes two first connecting rods and two first linkage rods, one end of the two first connecting rods is hinged to the first telescopic mechanism; 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.

[0011] The folding device of the above-mentioned shortwave antenna array layer, the two first truss beams and the two second truss beams are used to connect the array layer, and the first telescopic mechanism drives the first connecting rod mechanism to perform the folding and extending work, thereby driving the first truss beam and the second truss beam to approach and move away from the supporting beam, so that the shortwave antenna is in an unfolded state when it is working, and is in a folded state when the shortwave antenna is not working or is in a transportation state. The transportation size can be effectively reduced, which is convenient for vehicle transportation and storage, and is easy to install and maintain, effectively reducing the installation and maintenance costs.

[0012] In one embodiment, the first telescopic mechanism includes a first driver disposed on the supporting beam and a first telescopic rod connected to the first driver, and one end of two first connecting rods is hinged to the first telescopic rod.

[0013] In one of the embodiments, it also includes a second telescopic mechanism and a second connecting rod mechanism, the second telescopic mechanism is arranged on the supporting beam; 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 mechanism; the middle part of the second connecting rod is hinged to the second truss beam respectively; one end of the second linkage rod is hinged to the other end of the second connecting rod, and the other end of the second linkage rod is hinged to the first truss beam respectively.

[0014] In one embodiment, the second telescopic mechanism includes a second driver disposed on the supporting beam and a second telescopic rod connected to the second driver, and one end of two second connecting rods is hinged to the second telescopic rod.

[0015] In one of the embodiments, when the folding device of the shortwave antenna array layer 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.

[0016] In one embodiment, a first movable rod is hingedly connected to one end of the first truss beam, and the first movable rods on two of the first truss beams are hingedly connected to each other.

[0017] In one embodiment, the first movable rod is arranged in an L shape.

[0018] In one embodiment, a second movable rod is hingedly connected to one end of the second truss beam, and the second movable rods on two of the second truss beams are hingedly connected to each other.

[0019] In one embodiment, the second movable rod is arranged in an arc shape.

[0020] In one of the embodiments, when the folding device of the shortwave antenna array layer is in a fully unfolded state, the folding device of the shortwave antenna array layer is arranged in a fan shape. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0022] Figure 2 for Figure 1 A schematic diagram of the structure of the shortwave antenna array 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 array layer;

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

[0025] Figure 5 for Figure 1 Schematic diagram of the structure of the second linkage mechanism of the folding device of the shortwave antenna array layer.

[0026] The meanings of the symbols in the accompanying drawings are:

[0027] First truss beam 10, first movable rod 11, second truss beam 20, second movable rod 21, supporting beam 30, supporting leg 31, mounting hole 32, first mounting seat 33, first slide rail 34, first slide rail 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, second telescopic mechanism 60, first driver 61, second telescopic rod 62, second connecting rod mechanism 70, second connecting rod 71, second linkage rod 72. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. In contrast, 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.

[0031] Please refer to Figures 1 to 5 , which is a folding device of a shortwave antenna array layer of a preferred embodiment of the present invention, 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. One ends of the two first truss beams 10 are hinged. The two second truss beams 20 are arranged between the two first truss beams 10, and one ends of the two second truss beams 20 are hinged, and the hinge point between the two second truss beams 20 and the hinge point between the two first truss beams 10 are located at the same end of the folding device of the shortwave antenna array layer, and the two first truss beams 10 and the two second truss beams 20 are used to connect the array 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 to an external bracket. The first telescopic mechanism 40 is arranged on the supporting beam 30. Please refer to Figure 1 and Figure 4 The first link mechanism 50 includes two first links 51 and two first linkage rods 52. One end of the two first links 51 is hinged to the first telescopic mechanism 40; 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 51, and the other end of the first linkage rod 52 is hinged to the first truss beam 10.

[0032] Please refer to Figure 1 When the folding device of the shortwave antenna array layer is in the unfolded state and needs to be folded, the first telescopic mechanism 40 drives the hinge point between the first link 51 and the first telescopic mechanism 40 to move in the first direction, so as to drive the hinge point between the first link 51 and the second truss beam 20 to approach the supporting beam 30, and then drive the second truss beam 20 to approach the supporting beam 30; because one end of the first linkage rod 52 is respectively hinged to the other end of the first link rod 51, and the other end of the first linkage rod 52 is respectively hinged to the first truss beam 10, when the hinge point between the first link rod 51 and the second truss beam 20 approaches the supporting beam 30, the hinge point between the first link rod 51 and the first linkage rod 52 is driven to approach the supporting beam 30, and then the hinge point between the first linkage rod 52 and the first truss beam 10 is driven to approach the supporting beam 30, that is, the first truss beam 10 approaches the supporting beam 30, so that the folding device of the shortwave antenna array layer is folded, as shown in FIG. Figure 2 ; Please refer to Figure 2Similarly, when the folding device of the shortwave antenna array layer is in a folded state and needs to be unfolded, the first telescopic mechanism 40 drives the hinge point between the first connecting rod 51 and the first telescopic mechanism 40 to move in a second direction, which is opposite to the first direction, so as to drive the hinge point between the first connecting rod 51 and the second truss beam 20 away from the supporting beam 30, and then drive the second truss beam 20 away from the supporting beam 30; and when the hinge point between the first connecting rod 51 and the second truss beam 20 is away from the supporting beam 30, the hinge point between the first connecting rod 51 and the first linkage rod 52 is driven away from the supporting beam 30, and then the hinge point between the first linkage rod 52 and the first truss beam 10 is driven away from the supporting beam 30, that is, the first truss beam 10 is away from the supporting beam 30, so that the folding device of the shortwave antenna array layer is unfolded, as shown in FIG. Figure 1 .

[0033] The folding device of the above-mentioned shortwave antenna array layer, the two first truss beams 10 and the two second truss beams 20 are used to connect the array layer, and the first telescopic mechanism 40 drives the first connecting rod mechanism 50 to perform the retracting and extending work, thereby driving the first truss beam 10 and the second truss beam 20 to approach and move away from the supporting beam 30, so that the folding device of the shortwave antenna array layer can be unfolded and folded; thereby, the shortwave antenna can be in an unfolded state when it is in working state, and in a folded state when the antenna is not in working state or in transportation state, which can effectively reduce the transportation size, facilitate vehicle transportation and storage, and be easy to install and maintain, effectively reducing the installation and maintenance costs.

[0034] When the folding device of the shortwave antenna array 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, one end of the first truss beam 10 is hinged with a first movable rod 11, and the first movable rods 11 on the two first truss beams 10 are hinged to each other, that is, one end of the two first truss beams 10 is hinged by the two first movable rods 11; in this embodiment, the first movable rod 11 is set in an L shape. Similarly, specifically, one end of the second truss beam 20 is hinged with a second movable rod 21, and the second movable rods 21 on the two second truss beams 20 are hinged to each other, that is, one end of the two second truss beams 20 is hinged by the two second movable rods 21; in this embodiment, the second movable rod 21 is set in an arc shape.

[0035] Please refer to Figure 3The first telescopic mechanism 40 includes a first driver 41 disposed on the support beam 30 and a first telescopic rod 42 connected to the first driver 41. One end of the two first connecting rods 51 is hinged to the first telescopic rod 42. The first driver 41 is used to drive the first telescopic rod 42 to perform telescopic motion, thereby driving the hinge point between the first connecting rod 51 and the first telescopic mechanism 40 to move. Further, a first mounting seat 33 is disposed on the support beam 30. One end of the first driver 41 away from the first telescopic rod 42 is hinged to the first mounting seat 33. The hinge point between the first telescopic rod 42 and the two first connecting rods 51 is slidably disposed on the support beam 30. Therefore, when the first driver 41 drives the first telescopic rod 42 to perform telescopic motion, 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 being offset or deflected 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 provided on the support beam 30 , a first slider 35 is slidably provided on the first slide rail 35 , and the first slider 35 is hingedly connected at a hinge point between the first telescopic rod 42 and the two first connecting rods 51 .

[0036] Please refer to Figure 1 and Figure 2 In some embodiments, the folding device of the shortwave antenna array layer further includes a second telescopic mechanism 60 and a second connecting rod mechanism 70. The second telescopic mechanism 60 is disposed on the supporting beam 30, 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.

[0037] The second link mechanism 40 is arranged with a relative spacing from the first link mechanism 50; specifically, the first link mechanism 50 is located at the end of the first telescopic mechanism 40 close to the hinged connection of the two first truss beams 10, and the second link mechanism 40 is located at the end of the first telescopic mechanism 40 away from the hinged connection of the two first truss beams 10; and the first link mechanism 50 and the second link mechanism 70 are arranged on the same side of the folding device of the shortwave antenna array layer. Please refer to 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 mechanism 60. Further, one end of the two second links 71 is hinged to the second telescopic rod 62. The middle of the second link 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.

[0038] When the folding device of the shortwave antenna array layer is folded and unfolded, the second telescopic mechanism 60 works synchronously with the first telescopic mechanism 40, that is, during the folding process, the second telescopic mechanism 60 drives the hinge point between the second connecting rod 71 and the second telescopic mechanism 60 to move in the second direction, so as to drive the hinge point between the second connecting rod 71 and the second truss beam 20 to approach the supporting beam 30, and then drive the second truss beam 20 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 telescopic mechanism 60 drives the second connecting rod 71 and the hinge point between the second telescopic mechanism 60 to move in the first direction, so as to drive 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 and the second linkage rod 72.

[0039] When the folding device of the shortwave antenna array 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.

[0040] In some embodiments, a second mounting seat 36 is provided on the support beam 30, and an end of the second driver 61 away from the second telescopic rod 62 is hinged to the second mounting seat 36. The hinge point between the second telescopic rod 62 and the two second connecting rods 71 ​​is slidably provided 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 provided on the support beam 30, and a second slider 38 is slidably provided on the second slide rail 35, and the second slider 38 is hinged to the hinge point between the second telescopic rod 62 and the two second connecting rods 71.

[0041] It should be noted that when the folding device of the shortwave antenna array layer is fully unfolded, the folding device of the shortwave antenna array layer is arranged in a fan shape, which is consistent with the shape of the antenna element layer after unfolding. Specifically, when the folding device of the shortwave antenna array layer is in a fully unfolded state, the angle between the two first truss beams 10 is an acute angle, and the angle between the two second truss beams 20 is an acute angle. Further, when the folding device of the shortwave antenna array layer is in a fully unfolded state, the angle between the first truss beam 10 and the adjacent second truss beam 20 is 10°, and the angle between the two second truss beams 20 is 10°.

[0042] In this embodiment, the length of the first connecting rod 51 is greater than the length of the first linkage rod 52, the length of the second connecting rod 61 is greater than the length of the second linkage rod 62, the length of the second connecting rod 61 is greater than the length of the first connecting rod 51, and the length of the second linkage rod 62 is greater than the length of the first linkage rod 52, so that when the folding device of the shortwave antenna array layer is fully unfolded, the folding device of the shortwave antenna array layer is fan-shaped.

[0043] The folding process of the folding device of the shortwave antenna array layer is as follows:

[0044] like Figure 1 , the folding device of the shortwave antenna array layer is in a fully unfolded state. At this time, the first driver 41 drives the first telescopic rod 42 to retract, and the second driver 54 drives the second telescopic rod 55 to retract, that is, the first telescopic rod 42 moves to the right, and the second telescopic rod 55 moves to the left; because one end of the first connecting rod 51 is hinged to the first telescopic rod 42, and one end of the second connecting rod 41 is hinged to the second telescopic rod 55, the hinge point of the first connecting rod 51 and the first telescopic rod 42 is driven to move to the right, and the hinge point of the second connecting rod 41 and the second telescopic rod 55 is driven to move to the left.

[0045] Since the middle part of the first link 51 is hinged to the second truss beam 20, and the middle part of the second link 41 is hinged to the second truss beam 20, when the hinge point of the first link 51 and the first telescopic rod 42 moves to the right and the hinge point of the second link 41 and the second telescopic rod 55 moves to the left, the upper first link 51 is driven to rotate counterclockwise around the hinge point of the upper first link 51 and the upper second truss beam 20, and the lower first link 51 is driven to rotate around the lower first link 5 1 rotates clockwise around the hinge point between the upper second link 41 and the upper second truss beam 20, driving the upper second link 41 to rotate clockwise around the hinge point between the upper second link 41 and the upper second truss beam 20, driving the lower second link 41 to rotate counterclockwise around the hinge point between the lower second link 41 and the lower second truss beam 20, and further driving the second truss beam 20 to fold inwards, that is, the two second truss beams 20 are close to each other, and the angle between the two second truss beams 20 becomes smaller.

[0046] Since one end of the first linkage rod 52 is hinged to the other end of the first linkage rod 51, the other end of the first linkage rod 52 is hinged to the first truss beam 10, one end of the second linkage rod 42 is respectively hinged to the other end of the second linkage rod 41, and the other end of the second linkage rod 42 is respectively hinged to the first truss beam 10; thus, when the upper first linkage rod 51 rotates counterclockwise around the hinge point between the upper first linkage rod 51 and the upper second truss beam 20, the upper first linkage rod 52 is driven to rotate clockwise around the hinge point between the upper first linkage rod 52 and the upper first truss beam 10; when the lower first linkage rod 51 rotates clockwise around the hinge point between the lower first linkage rod 51 and the lower second truss beam 20, the lower first linkage rod 52 is driven to rotate clockwise around the hinge point between the lower first linkage rod 51 and the lower second truss beam 20. The hinge point between the movable rod 52 and the lower first truss beam 10 rotates counterclockwise; when the upper second connecting rod 41 rotates clockwise around the hinge point between the upper second connecting rod 41 and the upper second truss beam 20, the upper second linkage rod 42 is driven to rotate counterclockwise around the hinge point between the upper second linkage rod 42 and the upper first truss beam 10; when the lower second connecting rod 41 rotates counterclockwise around the hinge point between the lower second connecting rod 41 and the lower second truss beam 20, the lower second linkage rod 42 is driven to rotate counterclockwise around the hinge point between the lower second linkage rod 42 and the lower first truss beam 10; and then the two first truss beams 10 are folded inwardly, that is, the two first truss beams 10 are close to each other, and the angle between the two first truss beams 10 becomes smaller.

[0047] When the first driver 41 drives the first telescopic rod 42 to retract to a preset value and the second driver 54 drives the second telescopic rod 55 to retract to a preset value, 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, and the folding device of the shortwave antenna array layer is in a fully folded state.

[0048] It should be noted that the unfolding process of the folding device of the shortwave antenna array layer is opposite to the folding process of the folding device of the shortwave antenna array layer; specifically, the first driver 41 drives the first telescopic rod 42 to extend to the left, and the second driver 54 drives the second telescopic rod 55 to extend to the right, driving the upper first connecting rod 51 to rotate clockwise, the lower first connecting rod 51 to rotate counterclockwise, the upper second connecting rod 41 to rotate counterclockwise, the lower second connecting rod 41 to rotate clockwise, the upper first linkage rod 52 to rotate counterclockwise, the lower first linkage rod 52 to rotate clockwise, the upper second linkage rod 42 to rotate clockwise, and the lower second linkage rod 42 to rotate counterclockwise, thereby driving the two first truss beams 10 and the two second truss beams 20 to unfold outward, that is, the two first truss beams 10 move away from each other, the angle between the two first truss beams 10 increases, and the two second truss beams 20 move away from each other, and the angle between the two second truss beams 20 increases.

[0049] When the first driver 41 and the second telescopic rod 55 are extended to the longest state, the folding device of the shortwave antenna array layer is fully unfolded, the angle between the first truss beam 10 and the adjacent second truss beam 20 is 10°, and the angle between the two second truss beams 20 is 10°.

[0050] It should be noted that, after calculating the freedom of the mechanism movement, the folding device of the shortwave antenna array layer of the present invention has an overall freedom of 2. Therefore, under the drive of the first driver 41 and the second driver 54, it is a certain movement. The first driver 41 and the second driver 54 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 second connecting rod 41 and the second linkage rod 42, 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, and the spacing between the two first truss beams 10, the two second truss beams 20, and the first truss beam 10 and the second truss beam 20 after folding are equal and kept horizontal. At the same time, the folding device of the shortwave antenna array 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.

[0051] 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.

[0052] 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 folding device for a shortwave antenna array layer, characterized in that: include: Two first truss beams, one ends of the two first truss beams are hinged; Two second truss beams are arranged between the two first truss beams, one ends of the two second truss beams are hinged, and the hinge point between the two second truss beams and the hinge point between the two first truss beams are both located at the same end of the folding device of the shortwave antenna array layer and are arranged at intervals; A supporting beam disposed between two of the second truss beams; A first telescopic mechanism is arranged on the supporting beam; The first link mechanism comprises two first links and two first linkage rods, one end of the two first links is hinged to the first telescopic mechanism; the middle of the first links 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; The first telescopic mechanism includes a first driver arranged on the supporting crossbeam and a first telescopic rod connected to the first driver, and one end of two first connecting rods is hinged to the first telescopic rod.

2. The folding device for the shortwave antenna array layer according to claim 1, characterized in that: It also includes a second telescopic mechanism and a second connecting rod mechanism, the second telescopic mechanism is arranged on the supporting beam; 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 mechanism; 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.

3. The folding device for the shortwave antenna array layer according to claim 2, characterized in that: The second telescopic mechanism includes a second driver arranged on the supporting crossbeam and a second telescopic rod connected to the second driver, and one end of two second connecting rods is hinged to the second telescopic rod.

4. The folding device for the shortwave antenna array layer according to claim 1, characterized in that: When the folding device of the shortwave antenna array 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.

5. The folding device for the shortwave antenna array layer according to claim 4, characterized in that: A first movable rod is hinged at one end of the first truss beam, and the first movable rods on two of the first truss beams are hinged to each other.

6. The folding device for the shortwave antenna array layer according to claim 5, characterized in that: The first movable rod is arranged in an L shape.

7. The folding device for the shortwave antenna array layer according to claim 4, characterized in that: A second movable rod is hinged at one end of the second truss beam, and the second movable rods on two of the second truss beams are hinged to each other.

8. The folding device for the shortwave antenna array layer according to claim 7, characterized in that: The second movable rod is arranged in an arc shape.

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

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