A foldable antenna braided back frame

Abstract

The present invention discloses a foldable antenna woven back frame, which relates to the field of antennas. The present invention includes a back frame and a back frame support; the back frame includes a plurality of block back frames, the block back frame includes longitudinal beams, transverse beams and diagonal beams, the longitudinal beams, transverse beams and diagonal beams all include longitudinal support beams, transverse support beams and diagonal support beams, the longitudinal support beams, transverse support beams and diagonal support beams constitute a truss woven structure, the longitudinal beams, transverse beams and diagonal beams constitute a truss woven structure; the longitudinal beams and transverse beams are provided with embedded fasteners and reinforcing connectors; the back frame support is a door-shaped frame composed of metal parts, the door-shaped frame is located at the lower end of the fixed block back frame, one end of the door-shaped frame is connected to the back frame, and the other end is connected to the antenna mount. Compared with the existing antenna back frame, the present invention has the advantages of saving transportation space, light weight and high rigidity.

Description

Technical Field

[0001] The invention relates to the field of antennas, and in particular to a foldable antenna braided back frame. Background Art

[0002] The reflector antenna back frame is a key component of the reflector antenna. Its upper part is connected to the antenna panel and its lower part is connected to the antenna mount. The antenna back frame provides a rigid foundation for the installation of the antenna panel. The rigidity of the back frame directly affects the electrical performance of the reflector antenna. The vehicle-mounted antenna is a mobile antenna system based on the vehicle platform. Compared with the fixed station antenna, it has the advantages of flexible transfer and layout. However, due to the large main surface of the large-caliber antenna, the corresponding back frame needs to be folded according to the panel block form.

[0003] The traditional reflector antenna back frame is mainly composed of a central body, a radiation beam, and a ring tie rod. This type of back frame has the disadvantages of heavy weight, poor surface accuracy, and large size for loading and transportation. In order to meet the requirements of lightweight equipment, antenna back frames are currently mostly made of high-rigidity carbon fiber materials. At the same time, users have increasingly higher requirements for antenna surface accuracy. Therefore, designing a high-rigidity carbon fiber antenna folding back frame has become the key to solving the problem. Summary of the invention

[0004] In view of this, the present invention proposes a foldable antenna braided back frame, which solves the problem of loading large-caliber vehicle-mounted antennas and the stiffness of their back frames. Compared with existing antenna back frames, it has the characteristics of saving transportation space, light weight and high stiffness.

[0005] Based on the above purpose, the technical solution adopted by the present invention is:

[0006] A folding antenna braided back frame, comprising a back frame and a back frame support; the back frame 1 comprises a plurality of divided back frames 2;

[0007] The block back frame 2 includes a longitudinal beam 3, a transverse beam 4 and a diagonal beam 5, each of which includes a longitudinal support beam column, a transverse support beam column and a diagonal support beam column. An diagonal support beam column is provided at one of the diagonals in the area enclosed by the longitudinal support beam column and the transverse support beam column, and the longitudinal support beam column, the transverse support beam column and the diagonal support beam column form a truss woven structure;

[0008] A transverse through hole is provided on the transverse supporting beam column on the main surface of the longitudinal beam 3, and the transverse beam 4 passes through the through hole on the longitudinal beam 3. A diagonal beam 5 is provided at one of the diagonals in the area surrounded by the transverse beam 4 and the longitudinal beam 3. The main surfaces of the longitudinal beam 3 and the transverse beam 4 are arranged opposite to the main surface of the diagonal beam 5. The longitudinal beam 3, the transverse beam 4 and the diagonal beam 5 form a truss woven structure;

[0009] Connecting fasteners 6 are pre-embedded on the side surfaces of the longitudinal beam 3 on both sides of the through hole and on the side surfaces of the cross beam 4 on both sides of the through hole. The connecting fasteners 6 extend from the side surfaces to the through holes on the main surface. The connecting fasteners 6 on the main surface of one side of the longitudinal beam 3 are threadedly connected to the side surfaces of the cross beam 4 with an L-shaped reinforcing connector, and the connecting fasteners 6 on the side surfaces of the other side of the longitudinal beam 3 are threadedly connected to the side surfaces of the cross beam 4 with a T-shaped reinforcing connector. A three-way connector 8 is threadedly connected to the connecting fasteners 6 at the intersection of the cross beam 4, the longitudinal beam 3 and the inclined beam 5. The three-way connector 8 includes a T-shaped reinforcing connector and oblique plugs arranged at two vertical positions of the T-shape, and the oblique joints of the three-way connector 8 are inserted into the inclined beam 5.

[0010] Furthermore, the back frame 1 is a carbon fiber thin shell structure, and the screws connected to the back frame 1 are coated with carbon fiber special fastening glue.

[0011] Furthermore, a plurality of grooves are provided on the outer surface of the oblique plug of the three-way connector 8 .

[0012] Furthermore, the back frame support is a door-shaped frame 9 composed of metal parts, and the door-shaped frame 9 is located at the lower end of the back frame 1. The door-shaped frame 9 includes a left supporting frame and a right supporting frame in a mirror relationship. The left supporting frame and the right supporting frame are connected by transverse and diagonal metal steel pipes. The diagonal and transverse metal steel pipes are divided into two layers, front and back. A fixed metal steel pipe is also connected between the two layers of metal steel pipes. A flat base is provided on the bottom surface of the door-shaped frame 9, and the crossbeam 4, longitudinal beam 3 and diagonal beam 5 of the block back frame 2 are threadedly connected to the left and right sides of the door-shaped frame 9.

[0013] Due to the adoption of the above technical solution, the beneficial effects of the present invention compared with the background technology are:

[0014] 1. The back frame of the present invention adopts carbon fiber sheet beams woven into a truss structure, which simplifies the design of the antenna back frame. The design of the horizontal, vertical and inclined beams makes the back frame partially form a triangular unit with stable mechanical properties, which can greatly improve the stiffness of the antenna back frame and enhance the dynamic characteristics of the antenna system.

[0015] 2. The back frame of the present invention is divided into blocks according to the antenna panel, so that the antenna system is suitable for loading road transportation and railway transportation, shortening the width of the antenna surface and improving the mobility of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a foldable antenna braided back frame in an embodiment of the invention.

[0017] Figure 2 It is a schematic diagram of the central back frame structure in an embodiment of the invention and a partial enlarged view of the weaving of the horizontal and longitudinal beams.

[0018] Figure 3It is a schematic structural diagram of the left back frame in an embodiment of the invention.

[0019] Figure 4 It is a schematic structural diagram of the right back frame in an embodiment of the invention.

[0020] Figure 5 It is a schematic diagram of the structure of the longitudinal beam in the embodiment of the invention.

[0021] Figure 6 It is a schematic diagram of the structure of the crossbeam in the embodiment of the invention.

[0022] Figure 7 It is a schematic diagram of the structure of the horizontal, vertical and diagonal beams and a schematic diagram of the structure of the three-way connector in the embodiment of the invention.

[0023] Figure 8 It is a schematic diagram of the structure of the door-type frame in the embodiment of the invention.

[0024] In the figure: 1, back frame, 2, block back frame, 3, longitudinal beam, 4, cross beam, 5, cable-stayed beam, 6, connecting fasteners, 8, three-way connector, 9, portal frame. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figure 1 to Figure 4 As shown, a folding antenna braided back frame includes a back frame and a back frame support; the back frame 1 includes a plurality of divided back frames 2;

[0027] Specifically, the back frame in this embodiment is divided into blocks according to the blocks of the antenna panel, and the back frame is divided into a central back frame, a left folding back frame and a right folding back frame. The left and right block back frames can be mirror images of each other, or they can be different in size. Among them, the central back frame is the main load-bearing member of the entire antenna reflection surface, and its rigidity needs to be stronger than the left and right back frames, and the design rigidity of the central back frame near the connection of the antenna mount needs to be stronger than the far end.

[0028] like Figure 5 , Figure 6 As shown, the block back frame 2 includes a longitudinal beam 3, a transverse beam 4 and a diagonal beam 5, and the longitudinal beam 3, the transverse beam 4 and the diagonal beam 5 all include a longitudinal support beam column, a transverse support beam column and a diagonal support beam column, and a diagonal support beam column is provided at one of the diagonals in the area surrounded by the longitudinal support beam column and the transverse support beam column, and the longitudinal support beam column, the transverse support beam column and the diagonal support beam column constitute a truss woven structure;

[0029] A transverse through hole is provided on the transverse supporting beam column on the main surface of the longitudinal beam 3, and the transverse beam 4 passes through the through hole on the longitudinal beam 3. A diagonal beam 5 is provided at one of the diagonals in the area surrounded by the transverse beam 4 and the longitudinal beam 3. The main surfaces of the longitudinal beam 3 and the transverse beam 4 are arranged opposite to the main surface of the diagonal beam 5. The longitudinal beam 3, the transverse beam 4 and the diagonal beam 5 form a truss woven structure;

[0030] Specifically, taking the central back frame as an example, it includes three longitudinal beams, six transverse beams and several diagonal beams; in the back frame, two longitudinal beams are arranged symmetrically in the center as the main load-bearing beams of the back frame, and the two longitudinal beams are separated by a certain distance to provide bending and torsional rigidity for the back frame. The six transverse beams are woven and run through the three longitudinal beams in an uninterrupted manner;

[0031] like Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, connecting fasteners 6 are pre-embedded on the side surfaces of the longitudinal beam 3 on both sides of the through hole and on the side surfaces of the cross beam 4 on both sides of the through hole, and the connecting fasteners 6 extend from the side surfaces to the through holes on the main surface, and the connecting fasteners 6 on the main surface of one side of the longitudinal beam 3 are threadedly connected to the side surfaces of the cross beam 4 with an L-shaped reinforcing connector, and the connecting fasteners 6 on the side surfaces of the other side of the longitudinal beam 3 are threadedly connected to the side surfaces of the cross beam 4 with a T-shaped reinforcing connector, and a three-way connector 8 is threadedly connected to the connecting fasteners 6 at the intersection of the cross beam 4, the longitudinal beam 3 and the inclined beam 5, and the three-way connector 8 includes a T-shaped reinforcing connector and oblique plugs arranged at two vertical positions of the T-shape, and the oblique joints of the three-way connector 8 are inserted into the inclined beam 5.

[0032] Furthermore, the back frame 1 is a carbon fiber thin shell structure, and the screws connected to the carbon fiber back frame 1 are coated with carbon fiber special fastening glue.

[0033] Specifically, the places coated with the carbon fiber special fastening glue include the carbon fiber overlap places and the connection places between the reinforcement parts and the embedded parts;

[0034] Furthermore, if Figure 7 As shown, a plurality of grooves are provided on the outer surface of the oblique plug of the three-way connector 8 .

[0035] Specifically, the adhesion of the carbon fiber special fastening glue is further enhanced by designing the grooves.

[0036] Furthermore, if Figure 8As shown, the back frame support is a door-shaped frame 9 composed of metal parts. The door-shaped frame 9 is located at the lower end of the back frame 1. The door-shaped frame 9 includes a left supporting frame and a right supporting frame in a mirror relationship. The left supporting frame and the right supporting frame are connected by transverse and diagonal metal steel pipes. The diagonal and transverse metal steel pipes are divided into two layers, front and back. A fixed metal steel pipe is also connected between the two layers of metal steel pipes. A flat base is provided on the bottom surface of the door-shaped frame 9. The crossbeam 4, longitudinal beam 3 and diagonal beam 5 of the block back frame 2 are threadedly connected to the left and right sides of the door-shaped frame 9.

[0037] Specifically, the plane base on the bottom surface of the door-shaped frame is connected to the antenna base.

[0038] In summary, the present invention can greatly improve the back frame stiffness of the antenna through the truss structure of horizontal, vertical and diagonal beams, has stable mechanical properties, enhances the dynamic characteristics of the antenna system, and the block design enables the antenna to save transportation space.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention defined in the attached claims should be included in the protection scope of the present invention.

Claims

1. A folding antenna braided back frame, comprising a back frame and a back frame support; characterized in that: The back frame (1) comprises a plurality of segmented back frames (2); The block back frame (2) comprises a longitudinal beam (3), a transverse beam (4) and a diagonal beam (5), wherein the longitudinal beam (3), the transverse beam (4) and the diagonal beam (5) all comprise a longitudinal support beam column, a transverse support beam column and a diagonal support beam column, wherein a diagonal support beam column is provided at one of the diagonal positions in the area enclosed by the longitudinal support beam column and the transverse support beam column, and the longitudinal support beam column, the transverse support beam column and the diagonal support beam column form a truss woven structure; A transverse through hole is provided on the transverse support beam column on the main surface of the longitudinal beam (3); the transverse beam (4) passes through the through hole on the longitudinal beam (3); a diagonal beam (5) is provided at one of the diagonal positions in the area enclosed by the transverse beam (4) and the longitudinal beam (3); the main surfaces of the longitudinal beam (3) and the transverse beam (4) are arranged opposite to the main surface of the diagonal beam (5); the longitudinal beam (3), the transverse beam (4) and the diagonal beam (5) form a closed truss woven structure; Connecting fasteners (6) are pre-embedded on the side surfaces of the longitudinal beams (3) on both sides of the through hole and on the side surfaces of the cross beams (4) on both sides of the through hole. The connecting fasteners (6) extend from the side surfaces to the through hole on the main surface. The connecting fasteners (6) on one main surface of the longitudinal beam (3) and the side surface of the cross beam (4) are threadedly connected with an L-shaped reinforcing connecting piece. The connecting fasteners (6) on the side surface of the other side of the longitudinal beam (3) and the side surface of the cross beam (4) are threadedly connected with a T-shaped reinforcing connecting piece. A three-way connecting piece (8) is threadedly connected to the connecting fasteners (6) at the intersection of the cross beam (4), the longitudinal beam (3) and the inclined beam (5). The three-way connecting piece (8) includes a T-shaped reinforcing connecting piece and oblique plugs arranged at two vertical positions of the T shape. The oblique joint of the three-way connecting piece (8) is inserted into the inclined beam (5); A plurality of grooves are provided on the outer surface of the oblique plug of the three-way connector (8); The back frame support is a door-shaped frame (9) composed of metal parts. The door-shaped frame (9) is located at the lower end of the back frame (1). The door-shaped frame (9) includes a left support frame and a right support frame in a mirror-image relationship. The left support frame and the right support frame are connected by transversely stretched and diagonally stretched metal steel pipes. The diagonally stretched and transversely stretched metal steel pipes are divided into two layers, front and back. A fixed metal steel pipe is also connected between the two layers of metal steel pipes. The bottom surface of the door-shaped frame (9) is provided with a flat base. The transverse beam (4), the longitudinal beam (3) and the diagonally stretched beam (5) of the block back frame (2) are threadedly connected to the left and right side surfaces of the door-shaped frame (9).

2. A folding antenna braided back frame according to claim 1, characterized in that: The back frame (1) is a carbon fiber thin shell structure, and the screws connected to the back frame (1) are coated with a carbon fiber special fastening glue.

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