Vehicle-mounted direction-finding antenna capable of being quickly and transversely withdrawn

Abstract

The utility model belongs to the technical field of wireless communication, and particularly relates to a vehicle-mounted direction-finding antenna capable of being quickly and transversely withdrawn, which comprises a controller and an antenna main body, and is characterized in that the antenna main body comprises a supporting unit, a high-end antenna array unit and a plurality of low-end antenna array units; the high-end antenna array unit comprises a high-end antenna assembly and a central column, and the central column is connected with the lifting assembly; the low-end antenna array unit comprises a low-end antenna box body and a low-end antenna oscillator, and one end of the low-end antenna box body is provided with a low-end antenna support arm; the supporting unit comprises a fixed base and a switch box body arranged below the fixed base, a rotating mechanism is arranged in the fixed base, the rotating mechanism comprises a driving assembly and a gear assembly connected with the driving assembly, and the gear assembly is connected with the low-end antenna supporting arm; according to the vehicle-mounted direction-finding antenna, the functions of automatic lifting of the high-end antenna array unit and transverse withdrawing of the low-end antenna array unit can be realized, the operation safety and the working efficiency are greatly improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of wireless communication, and in particular relates to a vehicle-mounted direction-finding antenna which can be quickly withdrawn laterally. Background Art

[0002] The direction-finding antenna array is an important component of the radio direction-finding equipment, and is mostly a fixed array, with the characteristics of high direction-finding reliability and simple structure. At present, this type of product is divided into two layers: high-end vibrators and low-end vibrators, which are heavy and cumbersome to use. The high-end antenna vibrator is directly installed on the low-end support arm, and the high-end and low-end antennas share the support arm, eliminating the previous high-end height-increasing components and high-end antenna support arms, thereby reducing the weight of the entire antenna.

[0003] However, in order to meet the requirements of direction finding accuracy, sensitivity, direction finding speed and other indicators at different frequencies, different antenna aperture sizes are needed. However, a larger antenna aperture will directly affect the weight and portability of the antenna array, and the installation and removal process is cumbersome, often requiring manual assistance on the roof, which will affect the safety and timeliness of the removal. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a vehicle-mounted direction-finding antenna that can be quickly and laterally withdrawn, thereby solving the problem that the existing vehicle-mounted direction-finding antenna uses manual assistance to withdraw, which affects the withdrawal efficiency and withdrawal safety.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] Provided is a vehicle-mounted direction-finding antenna that can be quickly withdrawn laterally, comprising a controller and an antenna body connected to the controller, the antenna body comprising a support unit, a high-end antenna array unit and a plurality of low-end antenna array units; the high-end antenna array unit is connected to the support unit at the bottom, and the plurality of low-end antenna array units are connected to the side of the support unit;

[0007] The high-end antenna array unit includes a high-end antenna assembly and a central column arranged below the high-end antenna assembly, and the central column is connected to the lifting assembly;

[0008] The low-end antenna array unit comprises a low-end antenna box body and low-end antenna vibrators arranged on both sides of the low-end antenna box body, and a low-end antenna support arm is arranged at one end of the low-end antenna box body;

[0009] The support unit includes a fixed base and a switch box body arranged below the fixed base. A rotating mechanism is arranged inside the fixed base. The rotating mechanism includes a driving assembly and a gear assembly connected to the driving assembly. The gear assembly is connected to the low-end antenna support arm.

[0010] The beneficial effects of adopting the above technical solution are as follows: the vehicle-mounted direction-finding device realizes the integration of the high-end antenna array and the low-end antenna array, and under the action of the controller, the high-end antenna array unit can be automatically raised and lowered, and the low-end antenna array unit can be horizontally retracted; in the working state, the high-end antenna array unit is automatically raised to the working position under the control of the vehicle-mounted controller, and the low-end antenna array unit drives the gear assembly to rotate forward under the drive assembly, thereby causing the low-end antenna array unit to rotate in a clockwise direction until the low-end antenna array unit rotates to vertical polarization (working state), and the low-end unit can be automatically and controllably deployed; and when it is necessary to fold, the drive assembly drives the gear assembly to reverse, so that the low-end antenna array unit rotates counterclockwise to horizontal polarization (storage and transportation state), and after the low-end antenna is folded, the high-end antenna array unit is lowered to the storage and transportation state with the lifting assembly; through the coordinated use of the controller, the lifting assembly, and the rotating mechanism, the antenna can be quickly deployed and horizontally retracted, and the operator can also remotely operate the deployment and retraction of the antenna, which greatly improves the operation safety and work efficiency and reduces the production cost.

[0011] Further, the drive assembly includes a servo motor, and the servo motor is connected to the coupling at the bottom;

[0012] The gear assembly comprises a first gear and a second gear meshingly connected with the first gear; the first gear is connected with a coupling, and the second gear is connected with a low-end antenna support arm through a connecting piece.

[0013] The beneficial effects of adopting the above technical solution are: when the servo motor is started, the coupling can be rotated, driving the first gear connected to the coupling to rotate, the first gear can drive the second gear to rotate, and the second gear can drive the low-end antenna array unit to rotate through the connecting piece and the low-end antenna arm, thereby realizing the rapid deployment and folding of the low-end antenna array unit, and the automatic deployment and folding of the antenna unit is realized through the mechanical structure, without the need for manual auxiliary operation, saving time and effort, and improving safety and timeliness.

[0014] Furthermore, the connecting member includes a first fixed base, a second fixed base and a connecting shaft. The first fixed base and the second fixed base are arranged in parallel and are connected at the top through a gear clamping shaft; one end of the connecting shaft is connected to the second gear, and the other end is connected to the low-end antenna arm.

[0015] The beneficial effects of adopting the above technical solution are: the first fixed base and the second fixed base are fixed on the second fixed plate, which can fix the position of the gear assembly and the low-end antenna array unit, thereby improving the connection stability between the rotating mechanism and the low-end antenna array unit.

[0016] Furthermore, the high-end antenna assembly includes an antenna cover and several antenna assemblies arranged inside the antenna cover, and the several antenna assemblies include an antenna bracket and a direction-finding antenna; a fourth fixing plate is arranged under the antenna cover, and the fourth fixing plate is connected to the antenna bracket at the top and connected to the center column at the bottom.

[0017] Furthermore, the lifting assembly includes a first lifting rod and a second lifting rod connected to the first lifting rod; the top end of the first lifting rod is connected to the central column, and the second lifting rod is connected to the switch box body.

[0018] The beneficial effect of adopting the above technical solution is: the high-end antenna assembly can be raised and lowered by the first lifting rod, so that the high-end antenna array unit can be folded into the supporting unit, the volume becomes smaller, and it is easy to store.

[0019] Furthermore, the fixed base and the switch box body are both cylindrical, the fixed base includes a first fixed flange, a first fixed plate and a second fixed plate arranged at both ends of the first fixed flange, and the second fixed plate is provided with a gear assembly;

[0020] The switch box body comprises a second fixing flange, one end of which is provided with a third fixing plate, and the other end of which is connected to the second fixing plate.

[0021] Furthermore, waterproof gaskets are arranged between the second fixing flange and the third fixing plate and the second fixing plate.

[0022] Furthermore, a first flange is provided at one end of the connecting shaft, a second flange is provided at one end of the low-end antenna support arm, and the first flange and the second flange are connected by screws.

[0023] In summary, the vehicle-mounted direction-finding antenna that can be quickly withdrawn laterally provided by the utility model has the following beneficial effects:

[0024] (1) The vehicle-mounted direction-finding antenna can realize the automatic raising and lowering of the high-end antenna array unit and the lateral retraction of the low-end antenna array unit, which greatly improves the operational safety and work efficiency and reduces the production cost.

[0025] (2) The low-end antenna array unit of the vehicle-mounted direction-finding antenna uses a servo motor to drive the gear to rotate to achieve rapid deployment or folding of the low-end antenna array unit, which can not only improve timeliness and maneuverability, but also ensure working stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 It is a structural schematic diagram of the high-end antenna array unit of the utility model;

[0028] Figure 3It is a structural schematic diagram of the low-end antenna array unit of the utility model;

[0029] Figure 4 It is a structural schematic diagram of the rotating mechanism in the utility model;

[0030] Figure 5 It is a structural schematic diagram of the support unit in the utility model;

[0031] Among them, 1. antenna body; 2. support unit; 21. fixed base; 211. first fixed flange; 212. first fixed plate; 213. second fixed plate; 214. first shell; 22. switch box; 221. second fixed flange; 222. third fixed plate; 223. second shell; 3. high-end antenna array unit; 31. center column; 32. antenna cover; 33. antenna bracket; 34. direction-finding antenna; 35. fourth fixed plate; 36. first lifting rod; 37. second lifting rod; 4. low-end antenna array unit; 41. low-end antenna box; 42. low-end antenna vibrator; 43. low-end antenna support arm; 44. second flange; 5. rotating mechanism; 51. servo motor; 52. coupling; 53. first gear; 54. second gear; 55. first fixed base; 56. second fixed base; 57. gear clamp shaft; 58. connecting shaft; 59. first flange. DETAILED DESCRIPTION

[0032] The specific implementation methods of the utility model are described below to facilitate technical personnel in this technical field to understand the utility model, but it should be clear that the utility model is not limited to the scope of the specific implementation methods. For ordinary technical personnel in this technical field, as long as various changes are within the spirit and scope of the utility model defined and determined by the attached claims, these changes are obvious, and all utility model creations using the concept of the utility model are protected.

[0033] like Figure 1 As shown, the vehicle-mounted direction-finding antenna that can be quickly withdrawn laterally provided by the utility model includes a controller and an antenna body 1 connected to the controller, the antenna body 1 includes a support unit 2, a high-end antenna array unit 3 and a plurality of low-end antenna array units 4; the high-end antenna array unit 3 is connected to the support unit 2 at the bottom, and the plurality of low-end antenna array units 4 are connected to the side of the support unit 2; the vehicle-mounted direction-finding device realizes the integration of the high-end antenna array and the low-end antenna array, and under the action of the controller, the high-end antenna array unit 3 can be automatically raised and lowered, and the low-end antenna array unit 4 can be withdrawn laterally, effectively reducing the manual work intensity and work costs.

[0034] like Figure 2As shown, the high-end antenna array unit 3 includes a high-end antenna assembly and a central column 31 arranged below the high-end antenna assembly, and the central column 31 is connected to the lifting assembly; the high-end antenna assembly includes an antenna cover 32 and a plurality of antenna assemblies arranged inside the antenna cover 32, and the plurality of antenna assemblies include an antenna bracket 33 and a direction-finding antenna 34; a fourth fixing plate 35 is arranged below the antenna cover 32, and the fourth fixing plate 35 is connected to the antenna bracket 33 at the top, and is connected to the central column 31 at the bottom.

[0035] like Figure 3 As shown, the low-end antenna array unit 4 includes a low-end antenna box body 41 and a low-end antenna vibrator 42 arranged on both sides of the low-end antenna box body 41, and a low-end antenna support arm 43 is arranged at one end of the low-end antenna box body 41; the vehicle-mounted direction-finding device realizes the integration of the high-end antenna array and the low-end antenna array, and the high-end antenna array unit 3 and the low-end antenna array unit 4 can strengthen and improve the directivity of the radiation field and strengthen the intensity of the radiation field.

[0036] like Figure 1 As shown, the lifting assembly includes a first lifting rod 36 and a second lifting rod 37 connected to the first lifting rod 36; the top of the first lifting rod 36 is connected to the central column 31, and the second lifting rod 37 is connected to the switch box body 22; in this embodiment, the central column 31 and the first lifting rod 36 are connected by a mounting flange, and the second lifting rod 37 and the switch box body 22 are connected by bolts. When in use, the first lifting rod 36 can drive the central column 31 to rise and fall to realize the lifting and falling of the high-end antenna assembly, so that the high-end antenna array unit 3 can be folded into the support unit 2, the volume becomes smaller, and it is easy to store.

[0037] like Figure 1 and Figure 4 As shown, the support unit 2 includes a fixed base 21 and a switch box body 22 arranged below the fixed base 21, a rotating mechanism 5 is arranged inside the fixed base 21, the rotating mechanism 5 includes a driving assembly and a gear assembly connected to the driving assembly, the gear assembly is connected to the low-end antenna support arm 43; the driving assembly includes a servo motor 51, and the servo motor 51 is connected to the coupling 52 below; the gear assembly includes a first gear 53 and a second gear 54 meshingly connected to the first gear 53; the first gear 53 is connected to the coupling 52, and the second gear 54 is connected to the low-end antenna support arm 43 through a connecting piece.

[0038] When in working state, the high-end antenna array unit 3 is automatically raised to the working position under the control of the vehicle-mounted controller, and the low-end antenna array unit 4 drives the first gear 53 to rotate forward under the drive of the servo motor 51, and the first gear 53 can drive the second gear 54 to rotate, and the second gear 54 can drive the low-end antenna array unit 4 to rotate in the clockwise direction through the connecting piece and the low-end antenna support arm 43, until the low-end antenna array unit 4 rotates to vertical polarization (working state), and the automatic and controllable deployment of the low-end unit can be realized; and when it is necessary to fold, the servo motor 51 drives the first gear 53 to reverse, so that the low-end antenna array unit 4 rotates counterclockwise to horizontal polarization (storage and transportation state), and after the low-end antenna is folded, the high-end antenna array unit 3 is lowered to the storage and transportation state with the lifting assembly; the vehicle-mounted direction-finding antenna 34 realizes the automatic deployment and retraction of the antenna unit through a mechanical structure, without the need for manual auxiliary operation, saving time and effort, and improving safety and timeliness.

[0039] In the embodiment of the present utility model, Figure 4 and Figure 5 As shown, the fixed base 21 and the switch box body 22 are both cylindrical. The fixed base 21 includes a first fixed flange 211, a first fixed plate 212 and a second fixed plate 213 arranged at both ends of the first fixed flange 211, a gear assembly is arranged on the second fixed plate 213, and a first shell 214 is arranged between the first fixed plate 212 and the second fixed plate 213. The interior of the first shell 214 and between the first fixed flange 211 are hollow structures, and a rotating mechanism 5 is arranged inside; the switch box body 22 includes a second fixed flange 221, a third fixed plate 222 is arranged at one end of the second fixed flange 221, and the other end of the second fixed flange 221 is connected to the second fixed plate 213, and a second shell 223 is arranged between the second fixed plate 213 and the third fixed plate 222, and waterproof gaskets are arranged between the second fixed flange 221 and the third fixed plate 222 and the second fixed plate 213.

[0040] The connecting member includes a first fixed base 55, a second fixed base 56 and a connecting shaft 58. The first fixed base 55 and the second fixed base 56 are arranged in parallel and are connected at the top by a gear clamping shaft 57; one end of the connecting shaft 58 is connected to the second gear 54, and the other end is connected to the low-end antenna support arm 43, and a first flange 59 is arranged at one end of the connecting shaft 58, and a second flange 44 is arranged at one end of the low-end antenna support arm 43, and the first flange 59 and the second flange 44 are connected by screws; the first fixed base 55 and the second fixed base 56 are fixed to the second fixed plate 213 by bolt connection, which can fix the position of the gear assembly and the low-end antenna array unit 4, thereby improving the connection stability between the rotating mechanism 5 and the low-end antenna array unit 4.

[0041] In summary, the vehicle-mounted direction-finding antenna of the utility model that can be quickly retracted laterally has a simple structure. Through the coordinated use of the controller, the lifting assembly, and the rotating mechanism 5, it can not only realize the rapid deployment and laterally retracting of the antenna, but also enable the operator to remotely operate the deployment and retraction of the antenna, which greatly improves the operational safety and work efficiency and reduces the production cost.

Claims

1. A vehicle-mounted direction-finding antenna that can be quickly withdrawn laterally, characterized in that: It comprises a controller and an antenna body (1) connected to the controller, the antenna body (1) comprising a support unit (2), a high-end antenna array unit (3) and a plurality of low-end antenna array units (4); the high-end antenna array unit (3) is connected to the support unit (2) at the bottom, and the plurality of low-end antenna array units (4) are connected to the side of the support unit (2); The high-end antenna array unit (3) comprises a high-end antenna assembly and a central column (31) arranged below the high-end antenna assembly, and the central column (31) is connected to the lifting assembly; The low-end antenna array unit (4) comprises a low-end antenna box body (41) and low-end antenna elements (42) arranged on both sides of the low-end antenna box body (41); a low-end antenna support arm (43) is arranged at one end of the low-end antenna box body (41); The support unit (2) comprises a fixed base (21) and a switch box body (22) arranged below the fixed base (21); a rotating mechanism (5) is arranged inside the fixed base (21); the rotating mechanism (5) comprises a driving assembly and a gear assembly connected to the driving assembly; the gear assembly is connected to the low-end antenna support arm (43).

2. The vehicle-mounted direction-finding antenna capable of rapid lateral withdrawal according to claim 1, characterized in that: The driving assembly comprises a servo motor (51), and the servo motor (51) is connected to a coupling (52) at its lower side; The gear assembly comprises a first gear (53) and a second gear (54) meshingly connected with the first gear (53); the first gear (53) is connected to a coupling (52), and the second gear (54) is connected to a low-end antenna support arm (43) via a connecting piece.

3. The vehicle-mounted direction-finding antenna capable of rapid lateral withdrawal according to claim 2, characterized in that: The connecting member comprises a first fixed base (55), a second fixed base (56) and a connecting shaft (58); the first fixed base (55) and the second fixed base (56) are arranged in parallel and connected at their tops through a gear clamping shaft (57); one end of the connecting shaft (58) is connected to the second gear (54), and the other end is connected to the low-end antenna support arm (43).

4. The vehicle-mounted direction-finding antenna capable of rapid lateral withdrawal according to claim 1, characterized in that: The high-end antenna assembly comprises an antenna cover (32) and a plurality of antenna assemblies arranged inside the antenna cover (32), wherein the plurality of antenna assemblies comprise an antenna bracket (33) and a direction-finding antenna (34); a fourth fixing plate (35) is arranged below the antenna cover (32), the fourth fixing plate (35) is connected to the antenna bracket (33) at the top and to the center column (31) at the bottom.

5. The vehicle-mounted direction-finding antenna capable of rapid horizontal withdrawal according to claim 1, characterized in that: The lifting assembly comprises a first lifting rod (36) and a second lifting rod (37) connected to the first lifting rod (36); the top end of the first lifting rod (36) is connected to the central column (31), and the second lifting rod (37) is connected to the switch box body (22).

6. The vehicle-mounted direction-finding antenna capable of rapid lateral withdrawal according to claim 1, characterized in that: The fixed base (21) and the switch box body (22) are both cylindrical, and the fixed base (21) comprises a first fixed flange (211), a first fixed plate (212) and a second fixed plate (213) arranged at both ends of the first fixed flange (211), and a gear assembly is arranged on the second fixed plate (213); The switch box body (22) comprises a second fixing flange (221), one end of the second fixing flange (221) is provided with a third fixing plate (222), and the other end of the second fixing flange (221) is connected to the second fixing plate (213).

7. The vehicle-mounted direction-finding antenna capable of rapid transverse retraction according to claim 6, characterized in that: Waterproof gaskets are arranged between the second fixing flange (221), the third fixing plate (222) and the second fixing plate (213).

8. The vehicle-mounted direction-finding antenna capable of rapid horizontal withdrawal according to claim 3, characterized in that: A first flange (59) is disposed at one end of the connecting shaft (58), and a second flange (44) is disposed at one end of the low-end antenna support arm (43), and the first flange (59) and the second flange (44) are connected by screws.

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