A sawtooth reflector backframe support adjustment mechanism

Abstract

The utility model discloses a sawtooth reflection surface back frame supporting adjusting mechanism relates to the technical field of compact range measurement. Including back support frame, reflection surface and precision adjusting mechanism, and reflection surface is fixed between precision adjusting mechanism and back support frame, and precision adjusting mechanism includes base, universal stud, connecting seat and connecting piece, and one end of base is fixed in reflection surface close to back support frame, and the turning hole is opened in the base, and one end of universal stud is inserted in the turning hole, and the one end of back support frame close to reflection surface is provided with connecting piece. The utility model discloses through the universal stud is inserted into the base turning hole, then the base is fixed between reflection surface through third screw, after, connecting piece and back support frame guide rail between with second screw are fixed, then the universal stud is inserted into connecting seat, and the universal stud surface is screwed on and off the nut and the upper nut, realizes the mutual locking of the universal stud and connecting seat and is fixed.

Description

Technical Field

[0001] This utility model relates to the field of compaction field measurement technology, specifically to a sawtooth reflective back support adjustment mechanism. Background Technology

[0002] Compact field measurement technology refers to the technology of far-field measurement of antenna parameters or radar target scattering characteristics at close range. The compact field uses the principle of near-field focusing to generate a quasi-plane wave region in the near area of ​​the measurement antenna. The compact field reflector needs to be accurately positioned through a precision adjustment mechanism to adapt to different test scenarios. Existing compact field reflective back support adjustment mechanisms can only adjust height and left and right positions, which limits the adjustment range and cannot meet complex testing requirements, making them relatively impractical. Therefore, this patent proposes a sawtooth reflective back support adjustment mechanism to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a sawtooth reflective back support adjustment mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sawtooth reflective back support adjustment mechanism, comprising a back support frame, a reflective surface, and a precision adjustment mechanism. The reflective surface is fixed to the back support frame via the precision adjustment mechanism. The precision adjustment mechanism includes a base, a universal stud, a connecting seat, and a connector. The base is fixed to one end of the reflective surface near the back support frame. A turning hole is provided in the base, and one end of the universal stud is inserted into the turning hole. A connector is provided at one end of the back support frame near the reflective surface. A first screw is installed between the connecting seat and the connector, and the universal stud is fixed to the connecting seat.

[0005] Preferably, the precision adjustment mechanism further includes a lower nut and an upper nut, which are screwed onto the outer wall of the universal stud, thereby fixing the universal stud to the connecting seat.

[0006] Preferably, a guide rail is fixed to one end of the back support frame near the reflective surface, and a second screw is installed between the connector and the guide rail.

[0007] Preferably, the connecting seat has a first waist-shaped groove, the connecting piece has a second waist-shaped groove, and the first screw is located between the first waist-shaped groove and the second waist-shaped groove.

[0008] Preferably, the first waist-shaped groove and the second waist-shaped groove are perpendicular to each other.

[0009] Preferably, the back support frame is made of aluminum profile, and the surface of the back support frame has a T-shaped groove for easy modification and expansion.

[0010] The reflective surface includes a main panel, eight teeth on the top and bottom edges, and six teeth on the left and right edges.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By inserting the universal stud into the base's swivel hole, and then securing the base and reflector with a third screw, followed by securing the connector to the back support bracket guide rail with a second screw, the universal stud is then inserted into the connector, and upper and lower nuts are screwed onto the surface of the universal stud to lock it in place. Finally, the connector and connector are connected with a first screw, thus securing the back support bracket and reflector. The operation is relatively simple and quick. The connector and connector each have a first and second oblong groove, with the first screw located between them, allowing for vertical and horizontal adjustment of the connector and connector. The universal stud allows for angle adjustment on the base, enabling vertical, horizontal, and angular adjustments of the antenna body, adapting to complex testing requirements. It also allows for precise adjustment of large modules into smaller areas, enhancing its practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram of the precision adjustment mechanism of this utility model; Figure 4 This is a schematic diagram of the connecting seat and connecting component of this utility model.

[0013] In the figure: 1. Back support frame; 2. Reflective surface; 3. Precision adjustment mechanism; 301. Base; 302. Universal stud; 303. Lower nut; 304. Upper nut; 305. Connecting seat; 306. Connector; 4. First waist-shaped groove; 5. Second waist-shaped groove. Detailed Implementation

[0014] 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.

[0015] Compact field measurement technology refers to the technology of far-field measurement of antenna parameters or radar target scattering characteristics at close range. The compact field uses the principle of near-field focusing to generate a quasi-plane wave region in the near area of ​​the measurement antenna. The compact field reflector 2 needs to be accurately positioned by a precision adjustment mechanism to adapt to different test scenarios. The existing adjustment mechanism can only adjust the height and left and right positions, which is limited and cannot meet the complex test requirements. Its practicality is relatively weak. Therefore, it is necessary to design a sawtooth reflector back frame support adjustment mechanism for precise adjustment and efficient calibration.

[0016] like Figures 1-4 As shown, this utility model provides a technical solution: a sawtooth reflective back support adjustment mechanism, including a back support frame 1, a reflective surface 2, and a precision adjustment mechanism 3. The reflective surface 2 is fixed to the back support frame 1 through the precision adjustment mechanism 3. The precision adjustment mechanism 3 includes a base 301, a universal stud 302, a connecting seat 305, and a connector 306. The base 301 is fixed to one end of the reflective surface 2 near the back support frame 1. A turning hole is provided in the base 301, and one end of the universal stud 302 is inserted into the turning hole. A connector 306 is provided at one end of the back support frame 1 near the reflective surface 2. A first screw is installed between the connecting seat 305 and the connector 306, and the universal stud 302 is fixed to the connecting seat 305. The precision adjustment mechanism 3 also includes a lower nut 303 and an upper nut 304, which are screwed onto the outer wall of the universal stud 302, thereby fixing the universal stud 302 to the connecting seat 305. A guide rail is fixed to one end of the back support frame 1 near the reflective surface 2, and a second screw is installed between the connector 306 and the guide rail. A first oblong groove 4 is provided on the connector 305, and a second oblong groove 5 is provided on the connector 306. The first screw is located between the first oblong groove 4 and the second oblong groove 5. The first oblong groove 4 and the second oblong groove 5 are perpendicular to each other.

[0017] It should be noted that by inserting the universal stud 302 into the turning hole of the base 301, and then fixing the base 301 and the reflector 2 with the third screw, the connector 306 is then fixed to the guide rail of the back support frame 1 with the second screw. Subsequently, the universal stud 302 is inserted into the connector 305, and the upper and lower nuts 303 and the upper nut 304 are screwed onto the surface of the universal stud 302 to lock the universal stud 302 and the connector 305 together. Finally, the connector 305 and the connector 306 are connected with the first screw, thus fixing the back support frame 1 and the reflector 2. The operation is relatively simple and quick. The connector 305 and the connector 306 are respectively provided with a first waist-shaped groove 4 and a second waist-shaped groove 5. The first screw is located between the first waist-shaped groove 4 and the second waist-shaped groove 5, which allows the connector 305 and the connector 306 to be adjusted up, down, left, and right. The universal stud 302 can be angled on the base 301, thereby enabling adjustments to the up, down, left, right, and angle of the antenna body to meet complex testing requirements. It can divide large modules into smaller areas for precise adjustment, increasing its practicality.

[0018] like Figure 1 and Figure 4 As shown, the back support frame 1 is made of aluminum profile, and a T-shaped groove is opened on the surface of the back support frame 1 for easy modification and expansion. The reflective surface 2 includes a main panel, eight teeth on the top and bottom edges, and six teeth on the left and right edges.

[0019] It is important to note that in microwave anechoic chambers, especially in compact field testing environments, the formation of a quiet zone (a region with extremely low electromagnetic reflection) is crucial. Any design of the support structure must minimize interference with the electromagnetic environment of this quiet zone. Therefore, the selection of support materials and structural design must consider their impact on electromagnetic waves to ensure the accuracy of test data. The back support frame 1 has a high surface flatness and no unevenness, ensuring uniform stress, avoiding bending deformation, and extending service life. The back support frame 1 is connected by matching accessories (such as bolts and nuts), with small gaps at the connection points, strong integrity, and high stability. The back support frame 1 has a stable structure and strong load-bearing capacity. The unique T-shaped groove design allows for the addition of components without disassembling the profile, facilitating rapid modification and expansion. It can quickly build an ideal structure without complex design and processing, suitable for various scenarios such as machine frames, workbenches, and shelves. The surface of the back support frame 1 is treated with anodizing, etc., with a uniform color (such as silver-white, black, and gold), requiring no painting, combining a modern feel and industrial aesthetics. The aluminum profile is lightweight but has high rigidity, making it easy to handle and install, while meeting high strength requirements. The aluminum profile has the effect of reflecting and shielding electromagnetic waves. The free electrons inside the aluminum profile generate a reverse electromagnetic field under the action of electromagnetic waves, reflecting most of the electromagnetic wave energy. With a reflectivity of up to 95% for microwaves (such as 2.4GHz), the aluminum profile, through its enclosed channel and grounding design, effectively reduces the risk of electromagnetic and signal leakage, thereby enhancing the overall shielding effect of the microwave anechoic chamber.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A sawtooth reflective back support adjustment mechanism, comprising a back support frame (1), a reflective surface (2), and a precision adjustment mechanism (3), characterized in that: The reflective surface (2) is fixed to the back support frame (1) through the precision adjustment mechanism (3). The precision adjustment mechanism (3) includes a base (301), a universal stud (302), a connecting seat (305), and a connector (306). The base (301) is fixed to one end of the reflective surface (2) near the back support frame (1). A turning hole is provided in the base (301). One end of the universal stud (302) is inserted into the turning hole. A connector (306) is provided at one end of the back support frame (1) near the reflective surface (2). A first screw is installed between the connecting seat (305) and the connector (306). The universal stud (302) is fixed on the connecting seat (305).

2. The sawtooth reflector back support adjustment mechanism according to claim 1, characterized in that: The precision adjustment mechanism (3) also includes a lower nut (303) and an upper nut (304), which are screwed onto the outer wall of the universal stud (302) so that the universal stud (302) is fixed to the connecting seat (305).

3. The sawtooth reflector back support adjustment mechanism according to claim 1, characterized in that: The back support frame (1) is fixed with a guide rail at one end near the reflective surface (2), and a second screw is installed between the connector (306) and the guide rail.

4. The sawtooth reflector back support adjustment mechanism according to claim 1, characterized in that: The connecting seat (305) has a first waist-shaped groove (4), the connecting piece (306) has a second waist-shaped groove (5), and the first screw is located between the first waist-shaped groove (4) and the second waist-shaped groove (5).

5. The sawtooth reflector back support adjustment mechanism according to claim 4, characterized in that: The first waist-shaped groove (4) and the second waist-shaped groove (5) are perpendicular to each other.

6. The sawtooth reflector back support adjustment mechanism according to claim 1, characterized in that: The back support frame (1) is made of aluminum profile, and a T-shaped groove is provided on the surface of the back support frame (1) to facilitate quick modification and expansion.

7. The sawtooth reflector back support adjustment mechanism according to claim 1, characterized in that: The reflective surface (2) includes a main panel, eight upper and lower edge teeth, and six left and right edge teeth.

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