Folding opening and closing stretch-draw membrane antenna housing

Abstract

The invention discloses a folding opening and closing stretch-draw membrane antenna housing which comprises an array plane framework and a plurality of antenna sub-arrays arranged in the array plane framework, and a plurality of guide rail connecting supports are fixedly installed on the front side and the rear side of the top of the array plane framework. According to the folding opening and closing stretch-draw membrane antenna housing, through cooperation of the antenna housing body, the folding assembly, the guide rail, the guide rail support connecting piece, the guide rail support connecting and fixing piece, the pull rod, the pull rod connecting support, the pull rod support connecting piece fixing piece and the array plane framework, wave-transparent protection is provided for a large-size antenna sub-array, and meanwhile the antenna housing body can be folded conveniently; the antenna housing is simple in structure, convenient for forward maintenance of the antenna sub-array, not restricted by the scale of the array surface, capable of meeting the requirement of electromagnetic wave transmission, capable of conveniently adjusting the pretension of the housing body of the antenna housing, good in anti-wind bearing performance, and capable of guaranteeing the excellent structural performance and electrical performance of the whole device.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna covers, and in particular to a foldable and openable tensioned membrane antenna cover. Background Art

[0002] The radome is mainly used to protect the radar from the influence of harsh external environment such as wind, sand, rain and snow, and remain "transparent" to electromagnetic waves. As a modern high-performance antenna system protection device, the radome is an effective measure to ensure the normal and reliable operation of the antenna system. With the continuous improvement of the integration of phased array radar antenna arrays, the demand for fast opening and closing flat radomes that reduce antenna subarray winding losses and winding costs and support forward maintenance of antenna subarrays is becoming increasingly urgent.

[0003] The conventional fiberglass radome's quick flipping and opening and closing is only suitable for small-caliber antenna arrays. With the advancement of radar technology, modern radar equipment is developing towards high frequency, broadband, and ultra-large size. Restricted by electrical performance, large-size fiberglass radomes generally have poor structural rigidity and cannot meet the requirements of wind resistance, waterproof sealing, and electromagnetic wave transmission. They cannot provide convenient support for the front-facing maintenance of large-caliber antenna arrays. For this reason, a folding and opening tensioned membrane radome is proposed. While realizing the folding and opening of the radome, it provides convenience for the adjustment of the tensioning strength of the radome, and provides convenient conditions for the front-facing maintenance of the antenna array. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a foldable and openable tensioned membrane radome, which solves the problem that the flipping and opening of the prior radome is only suitable for small-diameter antenna arrays and cannot provide convenient support for front-facing maintenance of large-diameter antenna arrays.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a foldable and retractable tensioned membrane antenna cover, comprising an array frame and a plurality of antenna sub-arrays arranged in the array frame, a plurality of guide rail connecting supports are fixedly installed on the front and rear sides of the top of the array frame, a plurality of guide rail connecting supports arranged on the same side are fixedly connected to the guide rails through guide rail support connecting fasteners, a folding component is slidably installed on the opposite sides of the two guide rails, an antenna cover body is arranged on the folding component, and pull rods are fixedly installed on the left and right sides of the antenna cover body, a plurality of pull rod connecting supports are fixedly installed on the left and right sides of the top of the array frame, and the pull rods are fixed to the plurality of pull rod connecting supports arranged on the same side through pull rod support connecting fasteners.

[0006] The present invention is further configured as follows: the two opposite sides of the two guide rails are fixedly connected with guide rail fixing flanges, and the guide rail fixing flanges are fixed to the array frame through guide rail fixing fasteners; The top of the guide rail fixing flange is provided with a first horizontal long groove used in conjunction with the guide rail fixing fastener.

[0007] The present invention is further configured as follows: a tie rod fixing flange is fixedly installed on one side of the two tie rods facing away from each other, and the tie rod fixing flange is fixedly connected to the top of the array frame through a tie rod fixing fastener; A second horizontal long groove matched with the pull rod fixing fastener is formed on the top of the pull rod fixing flange.

[0008] The present invention is further configured as follows: a first vertical long groove for use in conjunction with a guide rail support connecting fastener is provided on one side of the guide rail connecting support; A second vertical long groove matched with the tie rod support connecting fastener is provided on one side of the tie rod connecting support.

[0009] The present invention is further configured as follows: the folding assembly includes a plurality of connecting rods, two adjacent connecting rods are rotatably connected via a connecting shaft, one end of the spaced connecting shafts is fixedly connected to a slider via a supporting shaft, and a pressing plate is fixedly installed on one side of the top of the connecting rod; The antenna cover body is fixedly installed at the bottom of a plurality of pressure plates, and pre-buried ropes are provided at the connection between the antenna cover body and the pressure plates and at the connection between the antenna cover body and the pull rod.

[0010] The present invention is further configured as follows: the slider member comprises a slider base, two sets of bearings are rotatably mounted on the top and bottom of the slider base, and two sets of steel ball universal rollers are fixedly mounted on the top and bottom of the slider base; The outer periphery of the bearing is in sliding contact with both sides of the inner cavity of the guide rail, and the steel ball universal rollers arranged at the top and bottom are in sliding contact with the top and bottom of the inner cavity of the guide rail respectively; The front and rear sides of one side of the pull rod are respectively fixedly connected to the two slider bases through pull rod slider connectors.

[0011] The present invention is further configured as follows: a water retaining strip is fixedly installed on the top of the array frame and located at a plurality of antenna sub-arrays, and a sealing ring is embedded on the top of the water retaining strip.

[0012] The present invention is further configured as follows: the antenna cover body is made of one of PTFE film materials and PVDF film materials.

[0013] The present invention provides a foldable and retractable tension membrane antenna cover. It has the following beneficial effects: (1) The present invention provides wave transmission protection for large-sized antenna subarrays through the coordination of the antenna cover body, folding assembly, guide rail, guide rail support connector, guide rail support connector fixing, tie rod, tie rod connection support, tie rod support connector fixing and array frame. At the same time, the antenna cover body can be easily folded to facilitate forward maintenance of the antenna subarray. It is not restricted by the size of the array surface and can meet the electromagnetic wave transmission requirements. The pre-tension of the antenna cover body can be conveniently adjusted, and it has good wind resistance and load-bearing performance, thereby ensuring the excellent structural performance and electrical performance of the overall device.

[0014] (2) The present invention achieves a sealed covering of the antenna subarray after the antenna cover body is closed by coordinating the water retaining strip, the sealing strip, the guide rail fixing flange, the guide rail fixing fasteners, the first horizontal long groove, the second horizontal long groove, the first vertical long groove, the tie rod fixing flange and the tie rod fixing fasteners. The antenna subarray has good waterproof sealing performance and is safer to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the external structure of the antenna cover in the open state according to the embodiment of the present invention; Figure 2 It is a schematic diagram of the external structure of the antenna cover in the closed state according to the embodiment of the present invention; Figure 3 It is a schematic diagram of the connection between the radome cover body, the guide rail, the guide rail connecting support and the sealing ring structure when the radome cover body is in a closed state in an embodiment of the present invention; Figure 4 It is a schematic diagram of the connection between the radome body, the guide rail, the guide rail connecting support and the sealing ring structure when the radome body is in the intermediate state in the embodiment of the present invention; Figure 5 It is a connection diagram of the folding assembly, the guide rail, the guide rail connecting support and the sealing ring structure when the antenna cover body is in the open state in the embodiment of the present invention; Figure 6 It is a connection diagram of the radome body, the pull rod, the pull rod connecting support, the sealing ring and the embedded rope structure when the radome body is in the closed state in the embodiment of the present invention; Figure 7 It is a connection diagram of the radome body, the pull rod, the pull rod connection support, the sealing ring and the embedded rope structure when the radome body is in the intermediate state in the embodiment of the present invention; Figure 8 It is a connection diagram of the radome body, the pull rod, the pull rod connection support, the sealing ring and the embedded rope structure when the radome body is in the open state in the embodiment of the present invention; Fig. 9 It is a schematic diagram of the connection between the folding assembly and the pull rod structure of the present invention; Fig.10It is a schematic diagram of the fixed state of the antenna cover body in the closed state in the embodiment of the present invention; Fig.11 For the present invention Fig. 9 A magnified schematic diagram of the structure in the middle.

[0016] In the figure: 1. Antenna cover body; 2. Folding assembly; 3. Pull rod; 4. Guide rail; 5. Pull rod fixing flange; 6. Guide rail fixing flange; 7. Guide rail connecting support; 8. Pull rod connecting support; 9. Sealing ring; 10. Array frame; 11. Antenna sub-array; 12. Water retaining strip; 13. Pressure plate; 14. Slider member; 15. Pull rod fixing fastener; 16. Guide rail fixing fastener; 17. Guide rail support connecting fastener; 18. Pull rod support connecting fastener; 19. Embedded rope; 20. Connecting rod; 21. Bearing; 22. Steel ball universal roller; 23. Slider base; 24. Connecting shaft; 25. Support shaft; 26. Pull rod slider connector; 27. First horizontal long groove; 28. Second horizontal long groove; 29. ​​First vertical long groove; 30. Second vertical long groove. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0018] See also Figure 1-11 , the embodiment of the present invention provides the following technical solutions: Embodiment 1: A foldable and retractable tensile membrane radome, comprising an array frame 10 and a plurality of antenna sub-arrays 11 arranged in the array frame 10, a plurality of guide rail connection supports 7 are fixedly installed on the front and rear sides of the top of the array frame 10, a plurality of guide rail connection supports 7 arranged on the same side are commonly fixedly connected to a guide rail 4 through a guide rail support connection fastener 17, the guide rail support connection fastener 17 is designed with bolts and nuts, and the different tightening degrees of the nuts are utilized to facilitate the pre-tension adjustment of the radome body 1 described below, a folding assembly 2 is slidably installed on the opposite side of the two guide rails 4, specifically, the folding assembly 2 comprises a plurality of connecting rods 20, two adjacent connecting rods 20 are rotatably connected by a connecting shaft 24, one end of the spaced connecting shaft 24 is fixedly connected to a slider 14 through a support shaft 25, the slider 14 and the inner cavity of the guide rail 4 They are used in conjunction with each other, and a pressure plate 13 is fixedly installed on one side of the top of the connecting rod 20, and a radome body 1 is fixedly installed on the bottom of several pressure plates 13. The radome body 1 is made of one of PTFE film material and PVDF film material. Pull rods 3 are fixedly installed on the left and right sides of the radome body 1. Pre-buried ropes 19 are provided at the connection between the radome body 1 and the pressure plate 13 and at the connection between the radome body 1 and the pull rod 3. In order to ensure the pre-tension adjustment of the radome body 1, several pull rod connecting supports 8 are fixedly installed on the left and right sides of the top of the array frame 10. The pull rod 3 is fixed to several pull rod connecting supports 8 arranged on the same side through a pull rod support connecting fastener 18. The pull rod support connecting fastener 18 is designed with bolts and nuts, and the different tightening degrees of the nuts are utilized to facilitate the pre-tension adjustment of the radome body 1 described below.

[0019] As a preferred solution, in order to reduce the sliding friction during folding, the slider member 14 includes a slider base 23, and the front and rear sides of one side of the pull rod 3 are fixedly connected to the two slider bases 23 through pull rod slider connectors 26 respectively. Two sets of bearings 21 are rotatably installed on the top and bottom of the slider base 23, and the outer periphery of the bearings 21 is in sliding contact with both sides of the inner cavity of the guide rail 4. Two sets of steel ball universal rollers 22 are fixedly installed on the top and bottom of the slider base 23, and the steel ball universal rollers 22 arranged on the top and bottom are in sliding contact with the top and bottom of the inner cavity of the guide rail 4 respectively.

[0020] In this embodiment, the folding adjustment of the folding assembly 2 provides convenient conditions for forward maintenance of the antenna subarray 11, and the antenna cover body 1 provides a good electromagnetic wave transmission environment for the antenna subarray 11.

[0021] Embodiment 2. This embodiment is an improvement on the previous embodiment, a foldable and retractable tensioned membrane antenna cover, further comprising a water retaining strip 12 fixedly installed on the top of the array frame 10 and located at a plurality of antenna sub-arrays 11, a sealing ring 9 is embedded in the top of the water retaining strip 12, a first vertical long groove 29 for use with the guide rail support connecting fastener 17 is provided on one side of the guide rail connecting support 7, and a second vertical long groove 30 for use with the pull rod support connecting fastener 18 is provided on one side of the pull rod connecting support 8. By pulling the guide rail 4 and the pull rod 3 downward, the close contact between the antenna cover body 1 and the sealing ring 9 is ensured to ensure the waterproof sealing effect.

[0022] As a preferred solution, in order to ensure stable contact between the antenna cover body 1 and the sealing ring 9, the two guide rails 4 are fixedly connected to the opposite sides with guide rail fixing flanges 6, and the guide rail fixing flanges 6 are fixed to the array frame 10 through guide rail fixing fasteners 16, and the top of the guide rail fixing flanges 6 is provided with a first horizontal long groove 27 used in conjunction with the guide rail fixing fasteners 16, and the two tie rods 3 are fixedly installed with tie rod fixing flanges 5 on the opposite sides, and the tie rod fixing flanges 5 are fixedly connected to the top of the array frame 10 through the tie rod fixing fasteners 15, and the top of the tie rod fixing flanges 5 is provided with a second horizontal long groove 28 used in conjunction with the tie rod fixing fasteners 15.

[0023] The advantage of the second embodiment over the first embodiment is that the cooperation of the antenna cover body 1 and the sealing ring 9 can also be utilized to provide a good waterproof sealing effect for the antenna subarray 11, and the stability of the position of the antenna subarray 11 is ensured through the cooperation of the guide rail fixing flange 6, the guide rail fixing fastener 16, the tie rod fixing flange 5 and the tie rod fixing fastener 15, thereby ensuring that the antenna cover body 1 can meet the wind load-bearing requirements.

[0024] When in use, the antenna cover body 1 is in a closed state. Figure 1 As shown, when the radome body 1 needs to be folded, that is, when the closed state-intermediate state-open state is switched, the guide rail fixing fasteners 16 and the pull rod fixing fasteners 15 are taken out, and the nuts corresponding to the pull rod support connecting fasteners 18 and the guide rail support connecting fasteners 17 are loosened. The guide rail 4 and the radome body 1 are lifted as a whole above the array frame 10 by using the guide rail fixing fasteners 16 and the pull rod fixing fasteners 15. When the radome body 1 is separated from the sealing ring 9, it enters the intermediate state. In this state, the pretension of the radome body 1 needs to be controlled at 1500-2000N / m to ensure that the radome body 1 can maintain its shape when folded, and then the pull rod 3 is pushed to the other side to realize the folding of the radome body 1, as shown in the attached figure. Figure 1 Status shown.

[0025] When the radome body 1 needs to be closed, that is, when it is converted from an open state to an intermediate state to a closed state, the pull rod 3 located in the middle of the array frame 10 is pushed to one side to fully unfold the radome body 1, and the nut of the pull rod support fastener 18 is tightened to a certain extent. At the same time, the pull rod fixing fasteners 15 and the guide rail fixing fasteners 16 around the radome body 1 are tightened, so that the radome as a whole is pressed down synchronously until the guide rail 4 and the array frame 10 are fitted into place, ensuring that the pre-tension of the radome body 1 is 3500-4000N / m, and the antenna subarray 11 is sealed and protected by the pressing between the radome body 1 and the sealing ring 9, and finally the pull rod support fastener 18 and the guide rail support fastener 17 are fully tightened.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable tensile membrane radome, comprising an array frame (10) and a plurality of antenna sub-arrays (11) arranged in the array frame (10), characterized in that: A plurality of guide rail connection supports (7) are fixedly installed on both the front and rear sides of the top of the array frame (10); the plurality of guide rail connection supports (7) arranged on the same side are fixedly connected to the guide rail (4) via guide rail support connection fasteners (17); a folding assembly (2) is slidably installed on the opposite side of the two guide rails (4); an antenna cover body (1) is arranged on the folding assembly (2); and a pull rod (3) is fixedly installed on both the left and right sides of the antenna cover body (1); a plurality of pull rod connection supports (8) are fixedly installed on both the left and right sides of the top of the array frame (10); the pull rod (3) is fixedly installed on the plurality of pull rod connection supports (8) arranged on the same side via pull rod support connection fasteners (18).

2. The foldable and retractable tension membrane antenna cover according to claim 1, characterized in that: The two guide rails (4) are both fixedly connected to a guide rail fixing flange (6) on opposite sides thereof, and the guide rail fixing flange (6) is fixed to the array frame (10) via a guide rail fixing fastener (16); The top of the guide rail fixing flange (6) is provided with a first horizontal long groove (27) for use in conjunction with the guide rail fixing fastener (16).

3. The foldable and retractable tension membrane antenna cover according to claim 1, characterized in that: A pull rod fixing flange (5) is fixedly mounted on the opposite sides of the two pull rods (3), and the pull rod fixing flange (5) is fixedly connected to the top of the array frame (10) via a pull rod fixing fastener (15); A second horizontal long groove (28) for use with the pull rod fixing fastener (15) is provided at the top of the pull rod fixing flange (5).

4. The foldable and retractable tension membrane antenna cover according to claim 1, characterized in that: A first vertical long groove (29) for use with the guide rail support connecting fastener (17) is provided on one side of the guide rail connecting support (7); A second vertical long groove (30) for use in conjunction with the pull rod support connecting fastener (18) is provided on one side of the pull rod connecting support (8).

5. The foldable and retractable tension membrane antenna cover according to claim 1, characterized in that: The folding assembly (2) comprises a plurality of connecting rods (20), two adjacent connecting rods (20) being rotatably connected via a connecting shaft (24), one end of the spaced-apart connecting shaft (24) being fixedly connected to a slider member (14) via a supporting shaft (25), and a pressing plate (13) being fixedly mounted on one side of the top of the connecting rod (20); The radome body (1) is fixedly mounted on the bottom of a plurality of pressure plates (13), and pre-buried ropes (19) are provided at the connection between the radome body (1) and the pressure plates (13) and at the connection between the radome body (1) and the pull rod (3).

6. The foldable and retractable tension membrane antenna cover according to claim 5, characterized in that: The slider member (14) comprises a slider base (23), two sets of bearings (21) are rotatably mounted on the top and bottom of the slider base (23), and two sets of steel ball universal rollers (22) are fixedly mounted on the top and bottom of the slider base (23); The outer periphery of the bearing (21) is in sliding contact with both sides of the inner cavity of the guide rail (4), and the steel ball universal rollers (22) arranged at the top and bottom are in sliding contact with the top and bottom of the inner cavity of the guide rail (4) respectively; The front and rear sides of one side of the pull rod (3) are respectively fixedly connected to the two slider base bodies (23) via pull rod slider connectors (26).

7. The foldable and retractable tension membrane antenna cover according to claim 1, characterized in that: A water retaining strip (12) is fixedly mounted on the top of the array frame (10) and located on a plurality of antenna sub-arrays (11), and a sealing ring (9) is embedded on the top of the water retaining strip (12).

8. The foldable and retractable tension membrane antenna cover according to claim 1, characterized in that: The antenna cover body (1) is made of one of PTFE film material and PVDF film material.

Images