Multi-degree-of-freedom adjustable EMC test antenna support
The adjustment mechanism, consisting of a slider, a slide bar, and a rotating column, enables multi-degree-of-freedom adjustment of the antenna position and angle, solving the problem of insufficient angle adjustment in existing technologies and improving the accuracy and stability of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SCI STANDARD TESTING CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-24
AI Technical Summary
Existing multi-degree-of-freedom adjustable EMC test antenna brackets have limited angle adjustment capabilities, making precise positioning impossible and affecting the accuracy and reliability of test results.
The adjustment mechanism, consisting of a slide bar, slider, rotating column, limiting hole, support plate, positioning component, and clamping mechanism, enables multi-degree-of-freedom adjustment of the antenna's height, angle, and direction. Precise positioning is ensured through sliding, rotating, and clamping functions.
It improves the antenna's adjustment freedom and adaptability, enhances the accuracy and stability of testing, prevents the antenna from falling off, and extends its service life.
Smart Images
Figure CN224163385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of antenna support technology, and in particular to a multi-degree-of-freedom adjustable EMC test antenna support. Background Technology
[0002] A multi-degree-of-freedom adjustable EMC test antenna bracket is a device used for electromagnetic compatibility (EMC) testing. It allows for flexible adjustment of the antenna's position and orientation to meet the requirements of different testing scenarios and standards. Through multi-degree-of-freedom adjustment functions such as height, angle, and rotation, the bracket ensures that the antenna can be tested in various spatial positions and orientations, thereby improving the accuracy and reliability of the tests.
[0003] A typical multi-degree-of-freedom adjustable EMC test antenna bracket consists of casters, a support mechanism, and a sliding mechanism. When in use, the casters are installed at the bottom of the bracket, and their unique rotation and steering functions allow the entire bracket to move and be positioned easily within the test site. The support mechanism is the core part of the bracket and provides stable support force. The sliding mechanism is installed on the support mechanism and is used to adjust the position of the antenna in the horizontal direction.
[0004] However, in some existing devices, the angle adjustment function of the antenna bracket is often relatively simple, only able to achieve limited rotation or tilt angle adjustment, and cannot provide multi-degree-of-freedom angle adjustment capability. This results in the antenna not being able to be accurately positioned in the required test direction during the test, thus affecting the accuracy and reliability of the test results. To address this issue, a multi-degree-of-freedom adjustable EMC test antenna bracket is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multi-degree-of-freedom adjustable EMC test antenna bracket, which aims to improve the problem that some devices in the prior art cannot provide good angle adjustment capabilities.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-degree-of-freedom adjustable EMC test antenna bracket includes a base plate, an adjustment mechanism is provided on the top of the base plate, a placement plate is fixedly connected to the front side of the adjustment mechanism, and a clamping mechanism is provided on the outside of the placement plate.
[0008] The adjustment mechanism includes two slide rods, the bottom of the two slide rods are fixedly connected to the top of the base plate, the outside of the two slide rods are slidably connected to sliders, the outside of the two sliders are fixedly connected to rotating columns, the outside of the two rotating columns are provided with multiple limiting holes, the outside of the two rotating columns are rotatably connected to adjacent sides, the top of the support plate is fixedly connected to a positioning component, and the inside of the support plate is rotatably connected to a rotating column.
[0009] As a further description of the above technical solution:
[0010] The positioning component includes a limiting post, the limiting post is fixedly connected to the top of the support plate, a support rod is slidably connected to the limiting post, positioning posts are fixedly connected to both sides of the bottom of the support rod, and the positioning post is slidably connected to the inside of the limiting hole.
[0011] As a further description of the above technical solution:
[0012] The clamping mechanism includes multiple sliding rods, which are slidably connected to the outer sides of the placement plate, and the rotating column is fixedly connected to the outer rear side of the placement plate.
[0013] As a further description of the above technical solution:
[0014] The sliding rods are externally fixedly connected to a locking plate, and the placement plate is externally fixedly connected to a plurality of support plates;
[0015] As a further description of the above technical solution:
[0016] The internal components of the plurality of support plates are fixedly connected to support columns, and the external components of the plurality of support columns are rotatably connected to connecting rods;
[0017] As a further description of the above technical solution:
[0018] A support column is fixedly connected to the outer side of one of the multiple connecting rods, and a cam is rotatably connected to the outer side of the multiple support columns;
[0019] As a further description of the above technical solution:
[0020] A lever plate is fixedly connected to the outside of the plurality of cams, and the outside of the plurality of lever plates is outside of the clamping plate.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the cooperation between the slide bar and the slider enables flexible adjustment of the antenna height, ensuring its stability during testing. The rotation of the support plate and the fixing function of the limiting hole enable precise positioning of the antenna angle, meeting the needs of multi-directional testing. The rotating column drives the placement plate to rotate, further expanding the antenna's degree of freedom of adjustment and improving the adaptability of the bracket and testing efficiency.
[0023] 2. In this utility model, the cam rotates by the actuation of the lever plate. Its convex surface design can apply pressure evenly, firmly clamp the antenna, prevent it from falling off, and ensure stable and reliable testing. The supporting and connecting functions of the connecting rod and the support column ensure the smooth transmission of clamping force, avoid uneven local force, and improve the stability and service life of the clamping mechanism. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a multi-degree-of-freedom adjustable EMC test antenna bracket proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the limiting column of a multi-degree-of-freedom adjustable EMC test antenna bracket proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the rotating column of a multi-degree-of-freedom adjustable EMC test antenna support proposed in this utility model.
[0027] Figure 4 This is a schematic diagram of the support plate of a multi-degree-of-freedom adjustable EMC test antenna bracket proposed in this utility model.
[0028] Legend:
[0029] 1. Base plate; 2. Adjustment mechanism; 21. Slide rod; 22. Slider; 23. Rotating column; 24. Limiting hole; 25. Support rod; 26. Limiting column; 27. Positioning column; 28. Support plate; 29. Rotating column; 3. Placement plate; 4. Clamping mechanism; 41. Slide rod; 42. Clamping plate; 43. Support plate; 44. Support column; 45. Connecting rod; 46. Support column; 47. Cam; 48. Actuating plate. Detailed Implementation
[0030] 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.
[0031] Reference Figure 2 and Figure 3 An embodiment of this utility model is provided: a multi-degree-of-freedom adjustable EMC test antenna bracket, including a base plate 1, an adjustment mechanism 2 is provided on the top of the base plate 1, and a placement plate 3 is fixedly connected to the front side of the adjustment mechanism 2. Its design can provide good limiting ability, and a clamping mechanism 4 is provided on the outside of the placement plate 3.
[0032] The adjusting mechanism 2 includes two sliding rods 21, designed to provide good height sliding capability. The bottoms of the two sliding rods 21 are fixedly connected to the top of the base plate 1. Sliding blocks 22 are slidably connected to the outside of the two sliding rods 21, allowing the sliding blocks 22 to slide at different heights. Rotating columns 23 are fixedly connected to the outside of the two sliding blocks 22, designed to provide good support capability. Multiple limiting holes 24 are provided on the outside of the two rotating columns 23, designed to provide good fixing capability. Support plates 28 are rotatably connected to adjacent sides of the outside of the two rotating columns 23, designed to provide good support capability. A positioning assembly, including limiting posts 26, is fixedly connected to the top of the support plate 28. The limiting post 26 is externally fixedly connected to the top of the support plate 28, and a support rod 25 is slidably connected to the outside of the limiting post 26. The limiting post 26 guides the support rod 25 so that it can slide without detaching. Positioning posts 27 are fixedly connected to the bottom two sides of the support rod 25, which provides good fixing ability. The positioning posts 27 are externally slidably connected to the inside of the limiting hole 24. A rotating post 29 is rotatably connected to the inside of the support plate 28, which provides good rotation ability. After the support plate 28 is rotated by the rotating post 23, the support rod 25 drives the positioning post 27 to slide outside the limiting post 26, so that the positioning post 27 can slide inside the limiting hole 24 and can be positioned at different angles.
[0033] Reference Figure 1 and Figure 4The clamping mechanism 4 includes multiple sliding rods 41, designed to provide good sliding capability. The sliding rods 41 are externally slidably connected to both sides of the placement plate 3. The rotating column 29 is externally fixedly connected to the rear side of the placement plate 3. A locking plate 42 is externally fixedly connected to the sliding rods 41, designed to provide good fixing capability, allowing for fixation of the top and bottom. Multiple support plates 43 are externally fixedly connected to the placement plate 3, designed to provide good support capability. Support columns 44 are internally fixedly connected to the support plates 43, enabling the support columns 44 to provide good support. The support capacity is provided by connecting rods 45 externally rotatably connected to multiple support columns 44, which are designed to provide good connection capacity. Support columns 46 are fixedly connected to the outer side of multiple connecting rods 45, and the support of the connecting rods 45 enables the support columns 46 to provide good lateral support. Cams 47 are rotatably connected to the outer side of multiple support columns 46, and the convex surface of the cams 47 can fix the clamping plate 42, which can effectively prevent the clamping plate 42 from falling off during use. A lever plate 48 is fixedly connected to the outer side of multiple cams 47, and the cams 47 can be rotated by moving the lever plate 48. The outer side of multiple lever plates 48 is outside the clamping plate 42.
[0034] Working principle: First, adjust the antenna height according to the test requirements. By sliding the slider 22 outside the slide rod 21, the slider 22 moves up and down along the slide rod 21, thereby changing its position on the slide rod 21 and adjusting the antenna height. After adjusting to the appropriate height, adjust the antenna angle. Rotate the support plate 28 so that it rotates around the rotating column 23. As the support plate 28 rotates, the support rod 25 slides outside the limiting column 26. The limiting column 26 acts as a guide to ensure that the support rod 25 does not detach during the sliding process. When the support plate 28 rotates to the required angle, the positioning column 27 slides into the corresponding limiting hole 24 under the drive of the support rod 25, thereby fixing the support plate 28 at the angular position and realizing the antenna angle positioning. Finally, install the antenna on the placement plate 3. When the rotating column 29 rotates, it can drive the placement plate 3 to rotate.
[0035] When fixing the antenna, the position of the clamping plate 42 is adjusted by sliding the sliding rod 41 on both sides of the placement plate 3 according to the size and shape of the antenna. The sliding ability of the sliding rod 41 allows the clamping plate 42 to move flexibly to accommodate antennas of different sizes. After the clamping plate 42 is moved to the appropriate position, the antenna is placed between the top and bottom of the clamping plate 42. The design of the clamping plate 42 provides good fixing ability, ensuring that the antenna can be firmly clamped. To further fix the antenna, the operator moves the lever plate 48. The movement of the lever plate 48 will drive the cam 47 to rotate. The convex design of the cam 47 will contact the clamping plate 42 and apply pressure during rotation, thereby clamping the antenna tightly between the clamping plates 42, effectively preventing the antenna from falling off during use. At the same time, the connecting rod 45 and the support column 46 play a supporting and connecting role in this process. The connecting rod 45 connects the support column 44 to the support column 46 through its good connecting ability, while the support column 46 achieves lateral support through the support of the connecting rod 45. This structural design ensures that the cam 47 can smoothly transmit force during rotation, so that the clamping plate 42 can evenly hold the antenna, avoiding damage to the antenna or unstable clamping due to uneven local force.
[0036] 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 multi-degree-of-freedom adjustable EMC test antenna support comprising a base plate (1), characterized in that: An adjustment mechanism (2) is provided on the top of the base plate (1), and a placement plate (3) is fixedly connected to the front side of the adjustment mechanism (2). A clamping mechanism (4) is provided on the outside of the placement plate (3). The adjustment mechanism (2) includes two slide rods (21). The bottom of the two slide rods (21) is fixedly connected to the top of the base plate (1). The two slide rods (21) are slidably connected to sliders (22). The two sliders (22) are fixedly connected to rotating columns (23). The two rotating columns (23) are provided with multiple limiting holes (24). The two rotating columns (23) are rotatably connected to adjacent sides of the outside of the two rotating columns (23). The top of the support plate (28) is fixedly connected to a positioning component. The inside of the support plate (28) is rotatably connected to a rotating column (29).
2. The multi-degree of freedom EMC test antenna support according to claim 1, wherein: The positioning component includes a limiting post (26), which is fixedly connected to the top of the support plate (28). A support rod (25) is slidably connected to the outside of the limiting post (26). Positioning posts (27) are fixedly connected to both sides of the bottom of the support rod (25). The positioning posts (27) are slidably connected to the inside of the limiting hole (24).
3. The multi-degree of freedom EMC test antenna support of claim 1, wherein: The clamping mechanism (4) includes multiple sliding rods (41), which are externally slidably connected to the outer sides of the placement plate (3), and the rotating column (29) is externally fixedly connected to the outer rear side of the placement plate (3).
4. The multi-degree of freedom EMC test antenna support of claim 3, wherein: The sliding rods (41) are externally fixedly connected to a clamping plate (42), and the placement plate (3) is externally fixedly connected to a plurality of support plates (43).
5. The multi-degree of freedom EMC test antenna support of claim 4, wherein: The internal of the plurality of support plates (43) is fixedly connected to support columns (44), and the external of the plurality of support columns (44) is rotatably connected to connecting rods (45).
6. The multi-degree of freedom EMC test antenna support of claim 5, wherein: A support column (46) is fixedly connected to the outer side of one of the multiple links (45), and a cam (47) is rotatably connected to the outer side of the multiple supports (46).
7. The multi-degree of freedom EMC test antenna support of claim 6, wherein: A lever plate (48) is fixedly connected to the outside of the plurality of cams (47), and the outside of the plurality of lever plates (48) is outside of the clamping plate (42).