CN113381158A

CN113381158A - Foldable parabolic antenna

Info

Publication number: CN113381158A
Application number: CN202110626242.1A
Authority: CN
Inventors: 谭永翼; 陈宇轩; 吕尉锋; 司钧瀚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-04
Filing date: 2021-06-04
Publication date: 2021-09-10
Also published as: CN114649664B; CN114649664A

Abstract

The invention relates to the technical field of antennas, in particular to a foldable parabolic antenna, which comprises: the foldable parabolic antenna comprises a guide rail, wherein a first connecting piece and a second connecting piece which can slide are arranged on the guide rail, and the foldable parabolic antenna also comprises a plurality of array surface components which are distributed along the circumferential direction, the first connecting piece is connected with a driving source, the driving source is used for driving the first connecting piece to move back and forth along the guide rail, and the array surface components are folded or unfolded along with the movement of the first connecting piece to form a paraboloid.

Description

Foldable parabolic antenna

Technical Field

The invention relates to the technical field of antennas, in particular to a foldable parabolic antenna.

Background

The parabolic antenna is a plane antenna composed of a parabolic reflector and a feed source positioned on the focus of the parabolic reflector, and is widely applied to the fields of microwave, satellite communication, radio astronomy and the like.

Disclosure of Invention

The technical scheme adopted by the invention for solving the technical problems is as follows: a foldable parabolic antenna comprising: the guide rail is provided with a first connecting piece and a second connecting piece which can slide; the array surface assemblies are uniformly distributed along the circumferential direction, and one end of each array surface assembly is hinged to the second connecting piece; the first connecting piece is hinged to the array surface assembly through a first connecting rod, the first connecting piece is connected with a driving source, the driving source is used for driving the first connecting piece to move back and forth along the guide rail, and the array surface assemblies are folded or unfolded along with the movement of the first connecting piece to form a paraboloid.

The guide rail assembly further comprises a third connecting piece fixed at the upper end of the guide rail, the third connecting piece is hinged to the upper surface of the array surface assembly through a second connecting rod, and the first connecting rod is hinged to the lower surface of the array surface assembly.

Further, the array surface assembly comprises an antenna framework and a panel, one end of the antenna framework is hinged to the second connecting piece, and the panel is arranged in an area between two adjacent antenna frameworks.

Further, the panel is a metal aluminum net, and the mesh size of the metal aluminum net is smaller than a quarter wavelength.

Furthermore, the third connecting piece or the antenna framework is made of resin materials, ABS materials or nylon.

Furthermore, the hinge point of the first connecting rod is connected to the antenna framework and protrudes from the surface of the antenna framework.

Further, the array surface assembly is provided with a perforation at an end thereof remote from the second link, and a plurality of the array surface assemblies are fixed by a wire rope.

Further, the first connecting piece and/or the second connecting piece and/or the third connecting piece are disc-shaped.

Furthermore, the first connecting piece and/or the third connecting piece adopt a double-layer structure design, the first connecting rod or the second connecting rod is correspondingly connected with the first connecting piece or the third connecting piece through a pin shaft, and the pin shaft is arranged in the first connecting piece or the third connecting piece with the double-layer structure.

Further, the lower end of the first connecting piece is detachably arranged at the output end of the equatorial instrument or the rotator through a tripod.

The invention has the following beneficial effects: the foldable parabolic antenna provided by the invention moves up and down along the guide rail through the first connecting piece so as to drive the plurality of array surfaces to be folded or unfolded along the circumferential direction to form a paraboloid, and one end, close to the guide rail, of the array surface assembly moves along the direction close to the first connecting piece along with the second connecting piece in the folding process, so that the folding rate of the whole parabolic antenna is improved, the foldable parabolic antenna is convenient to carry, the erection speed of the antenna is improved, and the foldable parabolic antenna also has the advantage of light weight.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a parabolic aerial according to an embodiment of the present invention in an extended state;

fig. 2 is a schematic structural diagram of the parabolic antenna according to the embodiment of the present invention in an extended state (hidden panel);

fig. 3 is a schematic structural diagram of a parabolic antenna according to an embodiment of the present invention in a folded state;

fig. 4 is an assembly diagram of a parabolic aerial according to an embodiment of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, the foldable parabolic antenna includes a guide rail 100, and a first connecting part 101 and a second connecting part 102 slidably disposed on the guide rail 100, wherein the second connecting part 102 is further uniformly distributed in a circumferential direction, i.e., a plurality of rotatable wavefront assemblies are uniformly distributed in the circumferential direction, and one end of each of the plurality of rotatable wavefront assemblies is hinged to the second connecting part 102, the first connecting part 101 is hinged to the wavefront assembly through a first connecting rod 106, the first connecting part 101 is connected to a driving source, the driving source is used for driving the first connecting part 101 to reciprocate along the guide rail 100, the plurality of wavefront assemblies are folded or unfolded to form a paraboloid along with the movement of the first connecting part 101, the lower end of the first connecting part 101 is detachably mounted at an output end of an equatorial telescope or a rotator through a tripod 108, and can rotate through the equatorial telescope or the rotator during use; the driving source drives the first connecting piece 101 to move along the guide rail 100, meanwhile, the array surface assemblies move and rotate along with the first connecting piece 101 and the second connecting piece 102, the plurality of array surface assemblies shrink and fold towards the center, in the process, the second connecting piece 102 also moves along with the first connecting piece 101 along the guide rail 100, namely, the hinge point of the array surface assemblies and the second connecting piece 102 moves downwards along with the second connecting piece 102 along the guide rail 100, so that the overall length of the folded array surface assemblies can be reduced, and the folding rate of the parabolic antenna is improved; in this embodiment, the driving source may be an operator directly pushing the first connecting element 101 to move on the guide rail 100, or may be a push-pull electric cylinder driving the first connecting element 101 to move; in addition, in this embodiment, the parabolic antenna may be self-locked by structural damping or connection damping of the parabolic antenna, that is, after the array surface assembly is folded or unfolded to form a parabolic surface, a considerable external force needs to be provided to change the shape of the array surface assembly to realize self-locking, and naturally, a positioning pin hole may be provided in the guide rail 100, and after the first connecting member 101 moves along the guide rail 100 to fold or unfold the array surface assembly to form a parabolic surface, the pin is inserted into the positioning pin hole to prevent the first connecting member 101 from moving relative to the guide rail 100, so as to lock the shape of the parabolic antenna.

In some embodiments, referring to fig. 1 to 3, the upper end of the guide rail 100 is further fixedly installed with a third connecting member 103, the third connecting member 103 is hinged to the upper surface of the array assembly through a second connecting rod 107, in which the first connecting rod 106 is hinged to the lower surface of the array assembly, the travel, folding angle and unfolding angle of the array assembly sliding along the guide rail 100 are defined through the second connecting rod 107, both ends of the second connecting rod 107 rotate relative to the third connecting member 103 and the array assembly respectively during folding and unfolding, and the hinge point between the array assembly and the second connecting member 102 is fixed with the travel of the second connecting member 102 moving on the guide rail 100 in the folding and unfolding states.

In some embodiments, as shown in fig. 1 and fig. 2, the front panel assembly includes an antenna frame 104 and a panel 105, one end of the antenna frame 104 is hinged to the second connecting member 102, the panel 105 is detachably mounted in an area between two adjacent antenna frames 104, further, the panel 105 is a metal aluminum mesh, and the mesh size of the metal aluminum mesh is smaller than a quarter wavelength, in this embodiment, the metal filter mesh can be folded along with the antenna frame 104, the panel 105 is fixedly mounted on the antenna frame 104 in a normal state, and is directly unfolded to be a paraboloid when needed to be used, but it can also be made of memory alloy, so as to avoid deformation after being folded many times; in other embodiments, the panel 105 may be made of a hard alloy plate, and the panel 105 may be detachably mounted on two adjacent antenna frames 104, where the inner surface of the panel 105 is formed with a plurality of meshes, and the size of the meshes is smaller than a quarter wavelength, specifically, the panel 105 may be mounted by screwing or adhering the outer surface to the upper surface of the antenna frame 104, or a groove capable of partially accommodating the panel 105 may be formed on the upper surface of the antenna frame 104, which further improves the assembly efficiency, that is, if the panels 105 are mounted according to the groove on the antenna frame 104, it can be ensured that the panels 105 can form a paraboloid after being unfolded, and when the parabolic antenna is to be folded, the panels 105 may be detached first, and then the first connecting member 101 is driven to move relative to the guide rail 100 to be folded, in this embodiment, the panels 105 are arc-shaped, and the panels 105 can be stacked and placed, so that the occupied space is small, and the storage and the transportation are convenient.

In some embodiments, the antenna frame 104 and/or the panel 105 are curved, and the inner curved surfaces of the antenna frame 104 and the panel 105 are paraboloidal surfaces, which are intended to ensure that the inner surface of the antenna as a whole forms a paraboloid surface in the extended state.

In some embodiments, the third connecting member 103 and/or the antenna frame 104 are made of a resin material, an ABS material, or nylon, but the third connecting member 103 and the antenna frame 104 may also be made of a material that does not reflect or refract electromagnetic waves.

In some embodiments, referring to fig. 1 and 2, a hinge point on the antenna frame 104 for connecting the first link 106 and/or the second link 107 protrudes from a surface of the antenna frame 104, specifically, the protrusion may be integrally formed with the antenna frame 104, and the first link 106 and the second link 107 are respectively hinged with the surface protrusion through hinge shafts, and the other end of the first link 106 is hinged to the first link 101, the other end of the second link 107 is hinged to the third link 103, when folded or unfolded, two ends of the first connecting rod 106 respectively rotate relative to the antenna framework 104 and the first connecting piece 101, two ends of the second connecting rod 107 respectively rotate relative to the antenna framework 104 and the third connecting piece 103, thereby enabling the antenna framework 104 to rotate towards the direction close to the guide rail 100 to realize folding or rotate towards the direction far away from the guide rail 100 to realize unfolding into a paraboloid; and the third connecting piece 103 on the re-guide rail 100 is hinged and fixed through the second connecting rod 107, so that the stroke of the second connecting piece 102 in reciprocating motion on the guide rail 100 can be limited, and the stability of folding and unfolding operations is ensured.

In some embodiments, referring to fig. 1 to 4, the ends of the array elements away from the second connecting member 102 are provided with through holes 109, and a plurality of the array elements are fixed by cables, and when being unfolded and used for a long time, the plurality of array elements can be connected by the cables with low ductility, so that the overall structural strength of the parabolic antenna is improved, and the antenna framework 104 is prevented from being deformed.

In some embodiments, referring to fig. 2 and 4, the first connector 101 and/or the second connector 102 and/or the third connector 103 are disc-shaped, in this embodiment, the antenna frame 104 has 16 pieces and is hinged to the second connector 102 uniformly along the circumferential direction, and the first connector 101, the second connector 102, and the third connector 103 are also provided with 16 pieces of structures hinged to the antenna frame 104, the first connecting rod 106, and the second connecting rod 107, respectively, and specifically, the first connector 101, the second connector 102, and the third connector 103 may be disc-shaped or disc-shaped; further, the first connecting piece 101 and/or the second connecting piece 102 and/or the third connecting piece 103 adopt a double-layer structure design, the first connecting rod 106 or the second connecting rod 107 are correspondingly connected with the first connecting piece 101 or the third connecting piece 103 through a pin shaft, and the pin shaft is arranged in the first connecting piece 101 or the third connecting piece 103 with a double-layer structure; specifically, the pin shaft used for connecting the first connecting rod 106/the second connecting rod 107 is arranged in a clamping installation mode, the first connecting piece 101 and the second connecting piece 102 are convenient to process and assemble, namely, the mounting grooves used for mounting the pin shaft are formed on the surfaces, close to each other, of the two disc-shaped structures, the pin shaft is arranged in the mounting grooves, the two disc-shaped structures are fixed in a threaded connection mode, the requirement for structural strength can be further met, and meanwhile, the processing cost and the assembly cost are saved.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims

1. A foldable parabolic antenna, characterized in that it comprises:

the guide rail (100) is provided with a first connecting piece (101) and a second connecting piece (102) which can slide;

the plurality of array surface assemblies are uniformly distributed along the circumferential direction, and one end of each array surface assembly is hinged to the second connecting piece (102);

the first connecting piece (101) is hinged to the array surface assembly through a first connecting rod (106), the first connecting piece (101) is connected with a driving source, the driving source is used for driving the first connecting piece (101) to move in a reciprocating mode along the guide rail (100), and the array surface assembly is folded or unfolded along with the movement of the first connecting piece (101) to form a paraboloid.

2. Foldable parabolic antenna according to claim 1, further comprising a third connection (103) fixed to the upper end of the guide (100), said third connection (103) being hinged to the upper surface of the front assembly by a second link (107), said first link (106) being hinged to the lower surface of the front assembly.

3. Foldable parabolic antenna according to claim 1, characterised in that said array assembly comprises an antenna framework (104) and a panel (105), one end of said antenna framework (104) being hinged to said second connection member (102), said panel (105) being mounted in the area between two adjacent antenna frameworks (104).

4. Foldable parabolic antenna according to claim 3, characterised in that said panel (105) is a metallic aluminium mesh and in that said metallic aluminium mesh has a mesh size smaller than a quarter wavelength.

5. Foldable parabolic antenna according to claim 2 or 3, characterised in that said third connection element (103) or said antenna skeleton (104) is made of a resin material or ABS material or nylon.

6. Foldable parabolic antenna according to claim 3, characterised in that a hinge point on the antenna skeleton (104) connecting the first link (106) protrudes from a surface of the antenna skeleton (104).

7. Foldable parabolic antenna according to claim 1, characterised in that said array elements are provided with perforations (109) at the end remote from said second connector (102), several of said array elements being fixed by cables.

8. Foldable parabolic antenna according to claim 2, characterised in that said first connector (101) and/or said second connector (102) and/or said third connector (103) are disc-shaped.

9. Foldable parabolic antenna according to claim 8, wherein the first connection element (101) and/or the third connection element (103) are designed in a double structure, wherein the first connection element (106) or the second connection element (107) are connected to the first connection element (101) or the third connection element (103) by a pin, and wherein the pin is arranged in the first connection element (101) or the third connection element (103) in a double structure.

10. Foldable parabolic antenna according to claim 1, characterised in that said first connector (101) is removably mounted at its lower end on the output of the equatorial telescope or of the rotator by means of a tripod (108).