Vehicle-mounted direction-finding antenna fixing support

Abstract

The utility model relates to radio direction finding equipment field discloses fixed support for vehicle-mounted direction finding antenna, including antenna and installation component, installation component includes mounting bracket, the positive surface fixed connection of mounting bracket has support plate, the bottom fixed connection of support plate has inner cylinder, the outside coaxial sleeve of inner cylinder is equipped with sleeve, the inner wall fixed connection of sleeve has two groups of half cylinders that set up symmetrically, the circumferential surface of inner cylinder is equipped with two groups of half circular recesses of position and half cylinder corresponding, the edge of circumferential surface of inner cylinder is equipped with annular groove near top. In the utility model, through the coaxial rotation structure of inner cylinder and sleeve, the cooperation of control component realizes antenna horizontal omnidirectional adjustment, and the adjustment process does not need to disassemble any component, when tracking mobile signal source, the operator can real -time adjustment antenna direction, need not to move the vehicle, shortens signal capture response time, and improves direction finding precision.

Description

Technical Field

[0001] This utility model relates to the field of radio direction finding equipment, and more particularly to a fixed support for vehicle-mounted direction finding antennas. Background Technology

[0002] Vehicle-mounted direction-finding antennas are devices used by vehicles to acquire external direction-finding signals. Their installation stability and directional adjustment flexibility directly affect direction-finding accuracy and response speed. With the increasing demand for radio monitoring and spectrum management, vehicle-mounted direction-finding systems are widely used in fields such as reconnaissance, emergency communication, and electromagnetic environment monitoring.

[0003] In existing technologies, vehicle-mounted antennas are mostly fixed using rigid brackets or simple universal joint structures, which have the following drawbacks: some adjustable brackets use bolt-tightening adjustment structures, which require the use of tools such as wrenches to loosen the bolts, adjust the angle, and then tighten the bolts again. This is not only inconvenient to operate, but also inconvenient to carry tools in outdoor vehicle operation scenarios (such as field surveys and emergency communications), making it difficult to quickly complete the angle adjustment. At the same time, most brackets only support pitch adjustment or cannot be adjusted at all, making it difficult to achieve rapid horizontal pointing in all directions, which affects the direction finding efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a fixed support for a vehicle-mounted direction-finding antenna, which aims to solve the problems of "cumbersome operation and low direction-finding accuracy" in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fixed support for a vehicle-mounted direction-finding antenna, comprising an antenna and a mounting assembly. The mounting assembly includes a mounting frame, a support plate fixedly connected to the front of the mounting frame, an inner cylinder fixedly connected to the bottom of the support plate, a sleeve coaxially fitted around the outer side of the inner cylinder, two sets of symmetrically arranged semi-cylinders fixedly connected to the inner wall of the sleeve, two sets of semi-circular grooves corresponding to the semi-cylinders being formed on the circumferential surface of the inner cylinder, and an annular groove being formed near the upper edge of the circumferential surface of the inner cylinder. The inner cylinder and the sleeve are detachably connected via a control assembly.

[0006] As a further description of the above technical solution: A mounting plate is fixedly connected to the rear side of the mounting bracket, and the surface of the mounting plate has a plurality of evenly distributed mounting holes.

[0007] As a further description of the above technical solution: An antenna base is fixedly connected to the bottom of the antenna, and an L-shaped connecting plate is fixedly connected to the bottom of the sleeve. The end of the L-shaped connecting plate away from the sleeve is fixedly connected to the antenna base.

[0008] As a further description of the above technical solution: A connecting wire is fixedly connected to the bottom of the antenna, and a terminal connector is fixedly connected to the end of the connecting wire away from the antenna.

[0009] As a further description of the above technical solution: The inner diameter of the sleeve is equal to the outer diameter of the inner cylinder, and the thickness of the semi-cylinder is equal to the width of the annular groove, which is used to accommodate the semi-cylinder.

[0010] As a further description of the above technical solution: The control component includes a control rod that is slidably connected to the inner wall of the support plate. A pull rope is fixedly connected to the bottom of the control rod, and a limit rod is fixedly connected to the end of the pull rope away from the control rod. The limit rod is slidably connected to the inner wall of the inner cylinder.

[0011] As a further description of the above technical solution: The limiting rod is elastically connected to the inner wall of the inner cylinder via a return spring, and the limiting rod is configured as a cylinder.

[0012] As a further description of the above technical solution: The sleeve has multiple annularly evenly distributed limiting grooves on its circumferential inner wall, and the limiting rod is inserted into the inner wall of the limiting groove.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the antenna can be adjusted horizontally in all directions by means of the coaxial rotation structure of the inner cylinder and the sleeve, combined with the cooperation of the control components. The adjustment process does not require disassembling any parts, which improves the work efficiency. When tracking a moving signal source, the operator can adjust the antenna direction in real time without moving the vehicle, which shortens the signal acquisition response time and improves the direction finding accuracy.

[0014] 2. In this utility model, the bolt connection between the mounting bracket and the support plate prevents the bolts from loosening due to vehicle bumps. The detachable structure of the sleeve and the inner cylinder allows the antenna to be replaced or the control components to be repaired without disassembling the mounting bracket, thus shortening maintenance time. The limit groove and the limit rod cooperate to provide multiple preset angle positions, which facilitates quick reset for repetitive tasks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the antenna and mounting components in this utility model; Figure 3 This is a three-dimensional disassembled structural diagram of the antenna and mounting components in this utility model; Figure 4 This is a three-dimensional cross-sectional view of the inner cylinder, sleeve, and control components in this utility model.

[0016] Legend: 11. Antenna; 12. Connecting wire; 13. Terminal connector; 111. Antenna base; 112. L-shaped connecting plate; 2. Mounting assembly; 21. Mounting bracket; 211. Mounting plate; 212. Mounting hole; 22. Support plate; 23. Inner cylinder; 24. Sleeve; 25. Semi-cylinder; 26. Semi-circular groove; 27. Annular groove; 3. Control assembly; 31. Control rod; 32. Pull rope; 33. Limit rod; 34. Return spring; 35. Limit groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a fixed support for a vehicle-mounted direction-finding antenna, including an antenna 11 and a mounting assembly 2. The antenna 11 is mounted on the vehicle frame via the mounting assembly 2. The mounting assembly 2 includes a mounting bracket 21. A mounting plate 211 is fixedly connected to the rear side of the mounting bracket 21. The surface of the mounting plate 211 has a plurality of evenly distributed mounting holes 212 for fixing the mounting bracket 21 to the vehicle frame or roof metal structure by bolts. A support plate 22 is fixedly connected to the front side of the mounting bracket 21. An inner cylinder 23 is fixedly connected to the bottom of the support plate 22. A rotatable sleeve 24 is coaxially sleeved on the outside of the inner cylinder 23.

[0019] Reference Figure 1 - Figure 3 Antenna 11 is fixedly connected to an antenna base 111 at its bottom. Sleeve 24 is fixedly connected to an L-shaped connecting plate 112 at its bottom. The end of the L-shaped connecting plate 112 away from sleeve 24 is fixedly connected to the antenna base 111. Antenna 11 is fixedly connected to a connecting wire 12 at its bottom. The end of the connecting wire 12 away from antenna 11 is fixedly connected to a terminal connector 13 for electrical connection with an on-board signal processing system or direction finding control system to realize real-time transmission of received signals.

[0020] Reference Figure 3 and Figure 4The inner wall of the sleeve 24 is fixedly connected with two sets of symmetrically arranged semi-cylinders 25. The circumferential surface of the inner cylinder 23 is provided with two sets of semi-circular grooves 26 corresponding to the semi-cylinders 25. The circumferential surface of the inner cylinder 23 is provided with an annular groove 27 near the upper edge. The annular groove 27 communicates with the semi-circular grooves 26. The inner cylinder 23 and the sleeve 24 are detachably connected and angle adjustable through the control component 3. The inner diameter of the sleeve 24 is equal to the outer diameter of the inner cylinder 23. The thickness of the semi-cylinder 25 is equal to the width of the annular groove 27. The annular groove 27 is used to accommodate the semi-cylinder 25. When the semi-cylinder 25 enters the annular groove 27 after passing through the semi-circular groove 26, it is rotated by a relative angle to make the semi-cylinder 25 and the semi-circular groove 26 misaligned, thereby connecting the inner cylinder 23 and the sleeve 24, realizing axial locking and preventing it from falling off.

[0021] Reference Figure 3 and Figure 4 The control component 3 includes a control rod 31, which is slidably connected to the inner wall of the support plate 22. A pull rope 32 is fixedly connected to the bottom of the control rod 31. A limit rod 33 is fixedly connected to the end of the pull rope 32 away from the control rod 31. The pull rope 32 extends downward and passes through the side wall through hole of the inner cylinder 23 into its internal cavity, where it connects with the limit rod 33. The limit rod 33 is slidably connected to the inner wall of the inner cylinder 23 and is elastically connected to the inner wall of the inner cylinder 23 by a return spring 34. Next, under normal conditions, it extends outward under the action of the return spring 34. The limiting rod 33 is set as a cylinder. The pull rope 32 is not elastic and is preferably a steel wire rope. Multiple annularly evenly distributed limiting grooves 35 are opened on the circumferential inner wall of the sleeve 24. The limiting rod 33 is inserted into the inner wall of the limiting groove 35. When the limiting rod 33 pops outward under the action of the return spring 34, its end is embedded in the limiting groove 35, which is used to limit the rotation angle of the sleeve 24 relative to the inner cylinder 23 and realize multi-position angle positioning.

[0022] Working principle: In use, the mounting bracket 21 is first firmly fixed to the designated position on the vehicle frame or roof through the mounting holes 212 on the mounting plate 211 to ensure the overall structure of the support is stable and reliable. When the antenna 11 needs to be installed, the operator aligns the two sets of semi-cylinders 25 on the sleeve 24 with the semi-circular grooves 26 on the inner cylinder 23 and pushes them downward along the axis so that the semi-cylinders 25 pass through the semi-circular grooves 26 and slide into the annular groove 27. Then, the sleeve 24 and the inner cylinder 23 are rotated relative to each other so that the semi-cylinders 25 and the semi-circular grooves 26 are completely misaligned, thereby achieving axial locking and preventing the sleeve 24 from falling off due to vibration or external force during subsequent use.

[0023] Antenna 11 receives external direction finding signals at a set angle. The signal is transmitted to the bottom connecting line 12 through the signal path inside antenna 11. The connecting line 12 adopts a shielded cable design, which can isolate electromagnetic interference generated by vehicle engine, air conditioner and other electrical equipment. The terminal connector 13 at the end of the connecting line 12 is tightly connected to the interface of the vehicle control system, realizing stable and real-time transmission of direction finding signals from antenna 11 to vehicle control unit, providing reliable signal support for accurate direction finding of vehicle direction finding system.

[0024] When the horizontal angle of antenna 11 needs to be adjusted, the operator manually pulls the control rod 31 of the control component 3 upward. Since the control rod 31 is slidably connected to the inner wall of the support plate 22, it drives the pull rope 32 fixedly connected to its bottom to move upward synchronously. The upward movement of the pull rope 32 will pull the limit rod 33 to overcome the elastic force of the reset spring 34 and slide along the inner wall of the inner cylinder 23 into the cavity until the end of the limit rod 33 is completely disengaged from the limit groove 35 on the circumferential inner wall of the sleeve 24. At this time, the rotation restriction between the sleeve 24 and the inner cylinder 23 is released, and it enters the adjustable state.

[0025] Keep the control lever 31 pulled and manually rotate the sleeve 24. When the sleeve 24 is rotated to the desired angle position, release the control lever 31. Under the elastic restoring force of the return spring 34, the limit rod 33 automatically pops out and embeds into the currently aligned limit groove 35, realizing angle positioning and automatic locking. This ensures that the antenna 11 always maintains the set attitude during vehicle operation, avoiding directional deviation due to bumps or wind loads, and ensuring direction finding accuracy.

[0026] When the antenna 11 needs to be disassembled for maintenance or replacement, first disconnect the terminal connector 13 from the vehicle control system. Then, pull the control lever 31 upward to disengage the limit lever 33 from the limit groove 35. Rotate the sleeve 24 until the semi-cylinder 25 aligns with the semi-circular groove 26. Pull the sleeve 24 upward along the inner cylinder 23 axis to allow the semi-cylinder 25 to slide out from the annular groove 27 through the semi-circular groove 26. The sleeve 24 and the antenna 11 can then be removed from the inner cylinder 23 as a whole. This facilitates subsequent maintenance, repair, or replacement of the antenna 11 or the sleeve 24. The operation is convenient and does not require disassembling the entire mounting bracket 21, greatly improving maintenance efficiency.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mounting bracket for a vehicle-mounted direction-finding antenna, comprising an antenna (11) and a mounting assembly (2), characterized in that: The mounting assembly (2) includes a mounting bracket (21), a support plate (22) is fixedly connected to the front of the mounting bracket (21), an inner cylinder (23) is fixedly connected to the bottom of the support plate (22), a sleeve (24) is coaxially sleeved on the outside of the inner cylinder (23), two sets of symmetrically arranged semi-cylinders (25) are fixedly connected to the inner wall of the sleeve (24), two sets of semi-circular grooves (26) are opened on the circumferential surface of the inner cylinder (23) and the position is corresponding to the semi-cylinders (25), and an annular groove (27) is opened on the circumferential surface of the inner cylinder (23) near the upper edge. The inner cylinder (23) and the sleeve (24) are detachably connected by the control assembly (3).

2. The fixed support for a vehicle-mounted direction-finding antenna according to claim 1, characterized in that: The mounting bracket (21) is fixedly connected to the rear side of the mounting plate (211), and the surface of the mounting plate (211) is provided with a plurality of evenly distributed mounting holes (212).

3. The fixed support for a vehicle-mounted direction-finding antenna according to claim 1, characterized in that: The bottom of the antenna (11) is fixedly connected to an antenna base (111), and the bottom of the sleeve (24) is fixedly connected to an L-shaped connecting plate (112). The end of the L-shaped connecting plate (112) away from the sleeve (24) is fixedly connected to the antenna base (111).

4. The fixed support for a vehicle-mounted direction-finding antenna according to claim 1, characterized in that: A connecting line (12) is fixedly connected to the bottom of the antenna (11), and a terminal connector (13) is fixedly connected to the end of the connecting line (12) away from the antenna (11).

5. The fixed support for a vehicle-mounted direction-finding antenna according to claim 1, characterized in that: The inner diameter of the sleeve (24) is equal to the outer diameter of the inner cylinder (23), and the thickness of the semi-cylinder (25) is equal to the width of the annular groove (27), which is used to accommodate the semi-cylinder (25).

6. The fixed support for a vehicle-mounted direction-finding antenna according to claim 1, characterized in that: The control component (3) includes a control rod (31), which is slidably connected to the inner wall of the support plate (22). A pull rope (32) is fixedly connected to the bottom of the control rod (31). A limit rod (33) is fixedly connected to one end of the pull rope (32) away from the control rod (31). The limit rod (33) is slidably connected to the inner wall of the inner cylinder (23).

7. The fixed support for a vehicle-mounted direction-finding antenna according to claim 6, characterized in that: The limiting rod (33) is elastically connected to the inner wall of the inner cylinder (23) through a return spring (34), and the limiting rod (33) is set as a cylinder.

8. The fixed support for a vehicle-mounted direction-finding antenna according to claim 7, characterized in that: The sleeve (24) has multiple annularly evenly distributed limiting grooves (35) on its circumferential inner wall, and the limiting rod (33) is inserted into the inner wall of the limiting groove (35).

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