Three-dimensional coordinate positioning support for radio frequency antenna testing

Abstract

The utility model discloses a three -dimensional coordinate positioning support for radio frequency antenna test, including fixed base, the top of fixed base is equipped with displacement platform, one side of displacement platform top is connected with the sliding block of sliding, the one side fixed mounting of sliding block top is equipped with telescopic link, and the movable end fixed mounting of telescopic link is equipped with angle component, and angle component includes connecting table and angle seat, and one side of connecting table top is fixedly connected with the bottom of angle seat, and the inside rotation of angle seat is connected with angle plate, and the other side rotation of connecting table top is connected with angle cylinder, the utility model discloses a three -dimensional coordinate positioning support for radio frequency antenna test, through setting angle component, displacement platform, sliding block and elevating shell, sliding block along displacement platform slides, and the position of support is adjusted, and elevating shell promotes connecting table from the bottom to the height of support adjustment, and it is convenient for support multi -angle multi -position to radio frequency antenna test device and supports, improves its use flexibility.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency antenna testing technology, specifically a three-dimensional coordinate positioning bracket for radio frequency antenna testing. Background Technology

[0002] Radio frequency (RF) antenna testing can accurately evaluate the radiation performance of an antenna in a controlled environment, including the amplitude and phase of the radiation field. Through near-field measurements, far-field conditions can be simulated at a relatively close distance, effectively reducing the requirements for test sites and minimizing random errors, ensuring the accuracy and repeatability of test results. RF antenna testing requires the use of a positioning bracket, whose main functions include supporting and stabilizing the antenna, accurately adjusting the antenna direction, providing isolation and insulation, weather resistance, ease of installation and disassembly, and safety.

[0003] However, traditional positioning brackets have the following drawbacks:

[0004] Traditional positioning brackets can only support and fix the RF antenna test device at a fixed position and height, which cannot meet the needs of testing in complex environments. Utility Model Content

[0005] The purpose of this utility model is to provide a three-dimensional coordinate positioning bracket for radio frequency antenna testing, so as to solve the problem mentioned in the background art that the traditional positioning bracket can only support and fix the radio frequency antenna testing device from a fixed position and a fixed height, and cannot meet the needs of testing in complex environments.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-dimensional coordinate positioning bracket for radio frequency antenna testing, comprising a fixed base, a displacement stage at the top of the fixed base, a sliding block slidably connected to one side of the top of the displacement stage, a telescopic rod fixedly installed on one side of the top of the sliding block, an angle component fixedly installed at the movable end of the telescopic rod, the angle component comprising a connecting platform and an angle seat, one side of the top of the connecting platform being fixedly connected to the bottom end of the angle seat, an angle plate being rotatably connected inside the angle seat, and an angle cylinder being rotatably connected to the other side of the top of the connecting platform, the movable end of the angle cylinder being rotatably connected to the side facing the angle plate, the angle cylinder performing telescopic and deflection movements, and pushing the angle plate from one side to adjust the operating angle of the bracket.

[0007] Preferably, a stepper motor is fixedly installed at the middle of the top of the fixed base, and a rotating shaft is fixedly installed at the output end of the stepper motor. The top of the rotating shaft is fixedly connected to the middle of the bottom of the displacement stage. When the stepper motor is powered on, it starts and drives the rotating shaft to rotate, which in turn drives the displacement stage to rotate, thereby adjusting the direction of the bracket.

[0008] Preferably, a positioning plate is fixedly installed on the side of the top of the displacement platform away from the sliding block, and a displacement cylinder is fixedly installed in the middle of the positioning plate. The movable end of the displacement cylinder is fixedly connected to the side of the sliding block facing it. A first limit switch is fixedly installed on the surface of the displacement cylinder. When the displacement cylinder performs telescopic movement, it pushes the sliding block to slide along the displacement platform from one side to adjust the position of the bracket. The first limit switch detects the displacement length of the displacement cylinder in real time.

[0009] Preferably, the surface of the telescopic rod is provided with several scale lines. During the lifting and lowering of the connecting platform, the movable end of the telescopic rod slides along the fixed end of the telescopic rod, and the user can observe the scale lines to understand the height of the connecting platform.

[0010] Preferably, a servo motor is fixedly installed inside the sliding block, and a screw is fixedly installed at the output end of the servo motor. The top end of the screw is threadedly connected to a lifting housing. The top end of the lifting housing is rotatably connected to the side of the connecting platform opposite to it. When the servo motor is powered on, it starts and drives the screw to rotate. The threads on the surface of the screw match the threads on the inner wall of the lifting housing, so the lifting housing rotates and rises relative to the screw. The lifting housing pushes the connecting platform from the bottom to adjust the height of the bracket.

[0011] Preferably, a second limit switch is fixedly installed on the surface of the angle cylinder. During the extension, retraction and deflection movements of the angle cylinder, the second limit switch detects the offset position in real time.

[0012] Preferably, the four corners of the top of the fixed base are provided with fixing holes, and the user can screw the screws through the fixing holes to fix the fixed base at the place of use for radio frequency antenna testing.

[0013] Compared with the prior art, the beneficial effects of this utility model are: by setting an angle component, a displacement stage, a sliding block and a lifting shell, the sliding block slides along the displacement stage to adjust the position of the support of the bracket, and the lifting shell pushes the connecting platform from the bottom to adjust the height of the bracket, which makes it easier for the bracket to support the radio frequency antenna test device at multiple angles and positions, and improves its flexibility of use. Attached Figure Description

[0014] Figure 1 This is a side view of the present invention;

[0015] Figure 2 This is a perspective view of the angle component of this utility model;

[0016] Figure 3 This is a connection diagram of the displacement stage and the sliding block of this utility model;

[0017] Figure 4 This is a diagram showing the connection between the fixed base and the stepper motor of this utility model.

[0018] In the diagram: 1. Fixed base; 2. Displacement stage; 3. Lifting shell; 4. Angle assembly; 41. Connecting platform; 42. Angle seat; 43. Angle plate; 44. Angle cylinder; 45. Second limit switch; 5. Screw; 6. Sliding block; 7. Displacement cylinder; 8. First limit switch; 9. Positioning plate; 10. Scale line; 11. Telescopic rod; 12. Servo motor; 13. Stepper motor; 14. Rotating shaft; 15. Fixing hole. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0020] Please see Figure 1-4 This utility model provides a three-dimensional coordinate positioning bracket for radio frequency antenna testing, including a fixed base 1. The top of the fixed base 1 is provided with a displacement stage 2. A sliding block 6 is slidably connected to one side of the top of the displacement stage 2. A telescopic rod 11 is fixedly installed on one side of the top of the sliding block 6. An angle component 4 is fixedly installed on the movable end of the telescopic rod 11. The angle component 4 includes a connecting platform 41 and an angle seat 42. One side of the top of the connecting platform 41 is fixedly connected to the bottom end of the angle seat 42. An angle plate 43 is rotatably connected inside the angle seat 42. An angle cylinder 44 is rotatably connected to the other side of the top of the connecting platform 41. The movable end of the angle cylinder 44 is rotatably connected to the side of the angle plate 43 facing it. The angle cylinder 44 performs telescopic and deflection movements. The angle cylinder 44 pushes the angle plate 43 from one side to adjust the use angle of the bracket.

[0021] A stepper motor 13 is fixedly installed at the middle of the top of the fixed base 1. A rotating shaft 14 is fixedly installed at the output end of the stepper motor 13. The top of the rotating shaft 14 is fixedly connected to the middle of the bottom of the displacement stage 2. When the stepper motor 13 is powered on, it starts and drives the rotating shaft 14 to rotate. The rotating shaft 14 drives the displacement stage 2 to rotate, thereby adjusting the direction of the bracket.

[0022] A positioning plate 9 is fixedly installed on the side of the top of the displacement platform 2 away from the sliding block 6. A displacement cylinder 7 is fixedly installed in the middle of the positioning plate 9. The movable end of the displacement cylinder 7 is fixedly connected to the side of the sliding block 6 facing it. A first limit switch 8 is fixedly installed on the surface of the displacement cylinder 7. The displacement cylinder 7 performs telescopic movement. The displacement cylinder 7 pushes the sliding block 6 to slide along the displacement platform 2 from one side to adjust the position of the bracket. The first limit switch 8 detects the displacement length of the displacement cylinder 7 in real time.

[0023] The surface of the telescopic rod 11 has several scale lines 10. During the raising and lowering of the connecting platform 41, the movable end of the telescopic rod 11 slides along the fixed end of the telescopic rod 11. The user can observe the scale lines 10 to understand the height of the connecting platform 41.

[0024] A servo motor 12 is fixedly installed inside the sliding block 6. A screw 5 is fixedly installed at the output end of the servo motor 12. The top end of the screw 5 is threadedly connected to a lifting housing 3. The top end of the lifting housing 3 is rotatably connected to the side of the connecting platform 41 that is directly opposite to it. When the servo motor 12 is powered on, it starts and drives the screw 5 to rotate. The threads on the surface of the screw 5 match the threads on the inner wall of the lifting housing 3, so the lifting housing 3 rotates and rises relative to the screw 5. The lifting housing 3 pushes the connecting platform 41 from the bottom to adjust the height of the bracket.

[0025] A second limit switch 45 is fixedly installed on the surface of the angle cylinder 44. During the extension and deflection movements of the angle cylinder 44, the second limit switch 45 detects the offset position in real time.

[0026] The four corners of the top of the mounting base 1 are provided with mounting holes 15. The user can screw the screws through the mounting holes 15 to fix the mounting base 1 at the place where the radio frequency antenna is used for testing.

[0027] In this embodiment, during use: the user screws through the fixing hole 15 to fix the fixing base 1 at the location for RF antenna testing. The stepper motor 13 is powered on and starts, driving the rotating shaft 14 to rotate. The rotating shaft 14 then drives the displacement stage 2 to rotate, adjusting the direction of the bracket. The displacement cylinder 7 extends and retracts, pushing the sliding block 6 from one side along the displacement stage 2 to adjust the position of the bracket. The first limit switch 8 detects the displacement length of the displacement cylinder 7 in real time. The servo motor 12 is powered on and starts, driving the screw 5 to rotate. The threads on the surface of the screw 5 interact with the lifting mechanism. The threads on the inner wall of shell 3 are matched, so the lifting shell 3 rotates and rises relative to the screw 5. The lifting shell 3 pushes the connecting platform 41 from the bottom to adjust the height of the bracket. During the lifting and lowering process of the connecting platform 41, the movable end of the telescopic rod 11 slides along the fixed end of the telescopic rod 11. The user can understand the height of the connecting platform 41 by visually observing the scale line 10. The angle cylinder 44 performs extension and deflection movements. The angle cylinder 44 pushes the angle plate 43 from one side to adjust the use angle of the bracket. During the extension and deflection movements of the angle cylinder 44, the second limit switch 45 detects the offset position in real time.

[0028] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A three-dimensional coordinate positioning bracket for radio frequency antenna testing, comprising a fixed base (1), characterized in that: The fixed base (1) has a displacement platform (2) at its top. A sliding block (6) is slidably connected to one side of the top of the displacement platform (2). A telescopic rod (11) is fixedly installed on one side of the top of the sliding block (6). An angle component (4) is fixedly installed on the movable end of the telescopic rod (11). The angle component (4) includes a connecting platform (41) and an angle seat (42). One side of the top of the connecting platform (41) is fixedly connected to the bottom end of the angle seat (42). An angle plate (43) is rotatably connected inside the angle seat (42). An angle cylinder (44) is rotatably connected to the other side of the top of the connecting platform (41). The movable end of the angle cylinder (44) is rotatably connected to the side of the angle plate (43) facing each other.

2. The three-dimensional coordinate positioning bracket for radio frequency antenna testing according to claim 1, characterized in that: A stepper motor (13) is fixedly installed at the middle of the top of the fixed base (1), and a rotating shaft (14) is fixedly installed at the output end of the stepper motor (13). The top of the rotating shaft (14) is fixedly connected to the middle of the bottom of the displacement stage (2).

3. The three-dimensional coordinate positioning bracket for radio frequency antenna testing according to claim 1, characterized in that: A positioning plate (9) is fixedly installed on the top of the displacement platform (2) away from the sliding block (6). A displacement cylinder (7) is fixedly installed in the middle of the positioning plate (9). The movable end of the displacement cylinder (7) is fixedly connected to the side of the sliding block (6) facing it. A first limit switch (8) is fixedly installed on the surface of the displacement cylinder (7).

4. The three-dimensional coordinate positioning bracket for radio frequency antenna testing according to claim 1, characterized in that: The surface of the telescopic rod (11) is provided with several scale lines (10).

5. The three-dimensional coordinate positioning bracket for radio frequency antenna testing according to claim 1, characterized in that: A servo motor (12) is fixedly installed inside the sliding block (6). A screw (5) is fixedly installed at the output end of the servo motor (12). A lifting shell (3) is threadedly connected to the top of the screw (5). The top of the lifting shell (3) is rotatably connected to the side of the connecting platform (41) that is directly opposite to it.

6. The three-dimensional coordinate positioning bracket for radio frequency antenna testing according to claim 1, characterized in that: A second limit switch (45) is fixedly installed on the surface of the angle cylinder (44).

7. The three-dimensional coordinate positioning bracket for radio frequency antenna testing according to claim 1, characterized in that: Fixing holes (15) are provided at the four corners of the top of the fixed base (1).

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