Antenna compact range testing device

Abstract

The utility model relates to the technical field of antenna testing, in particular to an antenna compact range testing device, which comprises a base. A platform is fixedly mounted in the middle of the top end of the base, and horizontal sliding mechanisms are arranged on the two sides of the platform; a distance adjusting mechanism is arranged in the middle of the platform, and a locking mechanism is arranged on the inner side of the platform. The first connecting rod, the second connecting rod, the servo motor, the movable disc and the rotating rod are used in cooperation, the other end of the second connecting rod pulls the rotating rod when the second connecting rod swings, the moving tables move towards the middle of the platform through the rotating rod, and the two moving tables slide in a guiding mode through the sliding bases and the guide rails when moving. The rotary tables on the two rotary table mounting frames are respectively used for mounting an antenna to be tested and a transmitting antenna, and the rotary tables and the transmitting antenna move simultaneously, so that the distance adjusting speed can be increased, and the energy consumption can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of antenna testing, in particular to an antenna compact range testing device. Background Art

[0002] The antenna compact range test turntable is an important device for antenna performance evaluation and calibration, mainly used to simulate the situation of the antenna receiving and transmitting signals in different directions and angles. This device enables testers to control the directivity of the antenna in the horizontal and vertical directions, as well as rotation in other possible axial directions, so as to evaluate important parameters such as the radiation characteristics, gain, directivity, and beam width of the antenna.

[0003] As disclosed in a multi-axis turntable applied to compact range antenna testing with the authorization announcement number CN212989497U, it has a base, one end of the upper surface of the base is fixedly provided with a first side plate, the other end of the upper surface of the base is fixedly provided with a second side plate, a first driving motor is fixedly provided on the side surface of the first side plate, and a first threaded rod is fixedly provided at the output end of the first driving motor. After adopting the above technical solution, the beneficial effect of the utility model is: through the cooperation of the first threaded rod, the second threaded rod, the first moving seat and the second moving seat, it is convenient to adjust the position and the distance between the antenna to be tested and the transmitting antenna.

[0004] Although the above patent is convenient for adjusting the distance between the two moving seats, when adjusting the above device, it is necessary to control the synchronous operation of the two driving motors at the same time, which will increase the energy consumption of the device. Content of the Utility Model

[0005] The purpose of the utility model is to provide an antenna compact range testing device to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] An antenna compact range testing device, comprising

[0008] a base;

[0009] A platform is fixedly installed in the middle of the top of the base, and horizontal sliding mechanisms are arranged on both sides of the platform;

[0010] A distance adjusting mechanism is arranged in the middle of the platform, and a locking mechanism is arranged inside the platform.

[0011] Preferably, the horizontal sliding mechanism includes guide rails, the guide rails are symmetrically arranged on both sides of the platform, slide seats are movably installed at the upper ends of the guide rails on both sides, a moving platform is arranged between the two slide seats, and a turntable mounting frame is fixedly installed in the middle of the top of the moving platform;

[0012] Preferably, the distance adjusting mechanism includes a first connecting rod, the first connecting rod is movably installed at the upper middle part of the platform, the lower ends on both sides of the first connecting rod are movably installed with second connecting rods through rotating shafts, the middle part of the bottom end of the moving table is fixedly installed with a rotating rod, and the other ends of the second connecting rods are movably sleeved on the rotating rod;

[0013] Preferably, the distance adjusting mechanism further includes an inner groove, the inner groove is opened at the inner middle part of the platform, a servo motor is fixedly installed below the inner part of the inner groove, a movable disk is fixedly installed at the output shaft end of the servo motor, the movable disk and the middle part of the first connecting rod are fixedly connected through a transmission shaft, and a plurality of inclined blocks are arranged at equal arcs on the outer wall of the movable disk;

[0014] Preferably, the locking mechanism includes a mounting groove, the mounting groove is arranged on one side of the inner groove, an electric push rod is fixedly installed in the mounting groove through a mounting seat, and a stop block is fixedly installed at the output shaft of the electric push rod passing through the mounting seat;

[0015] Preferably, a guide groove is arranged on one side of the inner groove close to the end of the stop block, and the end of the stop block away from the movable disk is slidably connected to the guide groove.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. For this antenna compact range test device, through the cooperation of the first connecting rod, the second connecting rod, the servo motor, the movable disk and the rotating rod, when the second connecting rod swings, the other end pulls the rotating rod, and the moving table is moved towards the middle of the platform through the rotating rod. When the two moving tables move, they are guided and slid through the sliding seats and guide rails. In this way, the distances of the turntables installed on the turntable mounting frames at both ends can be adjusted simultaneously. The turntables on the two turntable mounting frames are respectively used to install the antenna under test and the transmitting antenna. When both of them move simultaneously, the distance adjustment speed can be increased and the energy consumption can be reduced.

[0018] 2. For this antenna compact range test device, through the cooperation of the electric push rod, the stop block, the movable disk and the inclined blocks, after the electric push rod is started, the stop block is controlled to retract. When the stop block retracts, the end of the stop block retracts from the outside of the inclined block, and the other end of the stop block slides and is guided along the inside of the guide groove. When the stop block is separated from the inclined block, the movable disk can be driven to rotate by the servo motor. After adjustment, the stop block is controlled to reset to limit the movable disk. After such adjustment, the turntable structures installed on the two turntable mounting frames are stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall front view structure schematic diagram of the present utility model;

[0020] Figure 2 It is the schematic diagram of the movable disk installation structure of the present utility model;

[0021] Figure 3Schematic diagram of the installation structure of the rotating rod of the present utility model;

[0022] Figure 4 of the present utility model Figure 2 Enlarged schematic diagram at position A in

[0023] In the figure: 1, base; 2, platform; 3, guide rail; 4, sliding seat; 5, moving table; 6, turntable mounting frame; 7, connecting rod one; 8, connecting rod two; 9, rotating rod; 10, inner groove; 11, servo motor; 12, movable disc; 13, mounting groove; 14, mounting seat; 15, electric push rod; 16, stop block; 17, guide groove; 18, inclined block. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1-4 shown, a technical solution provided by the present utility model:

[0026] An antenna compact range test device includes a base 1; a platform 2 is fixedly installed in the middle of the top end of the base 1, and horizontal sliding mechanisms are arranged on both sides of the platform 2. The horizontal sliding mechanism includes a guide rail 3, and the guide rails 3 are symmetrically arranged on both sides of the platform 2. The upper ends of the two guide rails 3 are movably installed with sliding seats 4, a moving table 5 is arranged between the two sliding seats 4, and a turntable mounting frame 6 is fixedly installed in the middle of the top end of the moving table 5; a distance adjusting mechanism is arranged in the middle of the platform 2. The distance adjusting mechanism includes a connecting rod one 7, and the connecting rod one 7 is movably installed at the upper middle part of the platform 2. The lower ends of both sides of the connecting rod one 7 are movably installed with connecting rod two 8 through rotating shafts. The middle part of the bottom end of the moving table 5 is fixedly installed with a rotating rod 9, and the other end of the connecting rod two 8 is movably sleeved with the rotating rod 9; the distance adjusting mechanism further includes an inner groove 10, the inner groove 10 is opened in the inner side of the middle part of the platform 2, a servo motor 11 is fixedly installed below the inside of the inner groove 10, the output shaft end of the servo motor 11 is fixedly installed with a movable disc 12, the movable disc 12 is fixedly connected with the middle part of the connecting rod one 7 through a transmission shaft, and a plurality of inclined blocks 18 are arranged at equal arcs on the outer wall of the movable disc 12;

[0027] In this embodiment, after the movable disk 12 is unlocked, the servo motor 11 is started. The servo motor 11 controls the rotation of the movable disk 12. When the movable disk 12 rotates, it drives the first connecting rod 7 to rotate through the transmission shaft. When the first connecting rod 7 rotates, its two ends drive two second connecting rods 8 to swing towards each other through the rotating shafts. When the second connecting rods 8 swing, the other ends pull the rotating rod 9, and the moving platform 5 is moved towards the middle of the platform 2 through the rotating rod 9. When the two moving platforms 5 move, they are guided and slide through the sliding seats 4 and the guide rails 3. In this way, the distances between the turntables installed on the turntable mounting brackets 6 at both ends can be controlled simultaneously. The turntables on the two turntable mounting brackets 6 are respectively used to install the antenna under test and the transmitting antenna. When both of them move at the same time, the distance adjustment speed can be increased and the energy consumption can be reduced.

[0028] As Figure 2 and Figure 4 shown, a locking mechanism is provided inside the platform 2; the locking mechanism includes an installation groove 13, the installation groove 13 is arranged on one side of the inner groove 10, an electric push rod 15 is fixedly installed inside the installation groove 13 through a mounting seat 14, and the output shaft of the electric push rod 15 passes through the mounting seat 14 and is fixedly installed with a stopper 16; a guide groove 17 is arranged on one side of the inner groove 10 near the tail end of the stopper 16, and the end of the stopper 16 away from the movable disk 12 is slidably connected with the guide groove 17;

[0029] In this embodiment, before adjusting the distance, the electric push rod 15 inside the installation groove 13 is started. After the electric push rod 15 is started, it controls the stopper 16 to retract. When the stopper 16 retracts, its end retracts from the outside of the inclined block 18, and the other end of the stopper 16 slides and is guided along the inside of the guide groove 17. When the stopper 16 is separated from the inclined block 18, the movable disk 12 can be driven to rotate by the servo motor 11. After adjustment, the stopper 16 is controlled to reset to limit the movable disk 12. After such adjustment, the turntable structures installed on the two turntable mounting brackets 6 are stable.

[0030] Working principle: Before adjusting the distance, the electric push rod 15 inside the installation groove 13 is started. After the electric push rod 15 is started, it controls the stopper 16 to retract. When the stopper 16 retracts, its end retracts from the outside of the inclined block 18, and the other end of the stopper 16 slides and is guided along the inside of the guide groove 17. When the stopper 16 is separated from the inclined block 18, the movable disk 12 can be driven to rotate by the servo motor 11. After adjustment, the stopper 16 is controlled to reset to limit the movable disk 12; after the movable disk 12 is unlocked, the servo motor 11 is started. The servo motor 11 controls the rotation of the movable disk 12. When the movable disk 12 rotates, it drives the first connecting rod 7 to rotate through the transmission shaft. When the first connecting rod 7 rotates, its two ends drive two second connecting rods 8 to swing towards each other through the rotating shafts. When the second connecting rods 8 swing, the other ends pull the rotating rod 9, and the moving platform 5 is moved towards the middle of the platform 2 through the rotating rod 9. When the two moving platforms 5 move, they are guided and slide through the sliding seats 4 and the guide rails 3. In this way, the distances between the turntables installed on the turntable mounting brackets 6 at both ends can be controlled simultaneously.

[0031] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An antenna compact range test device, characterized in that: include Base (1); A platform (2) is fixedly mounted at the middle of the top of the base (1), and horizontal sliding mechanisms are arranged on both sides of the platform (2); A distance adjustment mechanism is provided in the middle of the platform (2), and a locking mechanism is provided on the inner side of the platform (2).

2. The antenna compact range test device according to claim 1, characterized in that: The horizontal sliding mechanism comprises guide rails (3) which are symmetrically arranged on both sides of the platform (2); a slide seat (4) is movably mounted on the upper ends of the guide rails (3) on both sides; a moving platform (5) is arranged between the two slide seats (4); and a turntable mounting frame (6) is fixedly mounted on the middle of the top end of the moving platform (5).

3. The antenna compact range test device according to claim 2, characterized in that: The distance adjustment mechanism comprises a connecting rod 1 (7), wherein the connecting rod 1 (7) is movably mounted on the middle upper end of the platform (2), and connecting rod 2 (8) is movably mounted on both lower ends of the connecting rod 1 (7) via a rotating shaft, and a rotating rod (9) is fixedly mounted on the middle of the bottom end of the movable platform (5), and the other end of the connecting rod 2 (8) is movably sleeved with the rotating rod (9).

4. The antenna compact range test device according to claim 3, characterized in that: The distance adjustment mechanism also includes an inner groove (10), the inner groove (10) is opened on the inner side of the middle part of the platform (2), a servo motor (11) is fixedly installed at the lower part of the inner groove (10), a movable disk (12) is fixedly installed at the output shaft end of the servo motor (11), the movable disk (12) is fixedly connected to the middle part of the connecting rod (7) through a transmission shaft, and a plurality of inclined blocks (18) of equal arc are arranged on the outer wall of the movable disk (12).

5. The antenna compact range test device according to claim 4, characterized in that: The locking mechanism comprises a mounting groove (13), the mounting groove (13) being arranged on one side of the inner groove (10), an electric push rod (15) being fixedly mounted inside the mounting groove (13) via a mounting seat (14), and a stopper (16) being fixedly mounted on the output shaft of the electric push rod (15) passing through the mounting seat (14).

6. The antenna compact range test device according to claim 5, characterized in that: A guide groove (17) is provided on one side of the rear end of the inner groove (10) close to the stopper (16), and an end of the stopper (16) away from the movable disk (12) is slidably connected to the guide groove (17).

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